Flame retardant protective clothing

At present the most commonly used in domestic oilfields are generally made of pure cotton overalls, antistatic fabric, the flame retardant treatment of cotton or polyester smock. Ordinary cotton overalls with daily clothing, can not play a role of explosion prevention and protection. Anti-static clothing can be triggered by electric spark explosion prevention effect, and the flame retardant processing pure cotton or polyester smock has certain protective effect to the deflagration, but these two kinds of antistatic and flame retardant performance clothing will over washing or wear abrasion is abate, once deflagration flame will aggravate degree of burns.

At present, the foreign petroleum and petrochemical enterprises, such as exxonmobil, BP, shell, etc., are using NomexR flame retardant in tooling as a daily work clothes. Developed by du pont NomexRIIIA fabrics containing NomexR, KevlarR fiber antistatic fiber and P - 140. NomexR unique molecular structure gives the NomexR IIIA fabric flame retardant, the nature of excellent thermal protective, P - 140 to make the fabric with antistatic performance, the nature of these performance would not be weakened due to wash or wear. Therefore, in the past 40 years of practice, dupont TM NomexR IIIA fabrics are widely used in petrochemical industry, proved very effective for protection.

Some petroleum and petrochemical enterprises in our country are also introduce the foreign advanced experience in safety management and products, including overseas advanced protective material. Cnooc has long been in the field of overseas use of NomexR fabric flame retardant protective clothing, and last year began to use in its domestic refineries. China's oil in overseas oil field using the NomexR fabric flame retardant protective clothing. Tarim oilfield for the first time in 2007 will have international protection standard of dupont TM NomexR fabrics made of flame retardant protective clothing as a uniform, replaced the previous cotton overalls.

Due to the protective performance of clothing in addition to fabric choice is affected by various factors, such as garment design, use of accessories, including stitches, zipper, reflective tape and so on. Design aspects should be covered the surface of the skin as often as possible, such as not using turndown collar design, etc., in order to enhance the security of garments' integral, the flame retardant and recommended suture, zippers, so as to avoid clothing when meeting deflagration combustion break the whole garment due to attachment, cause the wearer directly exposed to protection of the flame and don't.

In addition, flame resistant clothing also need to pay attention to some details, such as to choose suitable size and slightly loose protective clothing, size is too small will greatly affect the wearing comfort, and affect the operation of flexibility; Don't open collar while wearing protective clothing, for example, don't roll up your sleeves, protective clothing clean oil to deal with, and so on, to ensure that the protective clothing can play the role of the best.

In fact, understanding of flame retardant protective abroad also experienced a process of gradual changes. As is known to all, F1 (F1) race is a deflagration occurred more than petroleum and petrochemical industry. In the early create F1 grand prix drivers on choose match clothes mainly is more comfortable and beautiful. In 1976, three drivers' world championship winner nicky's reach in newberg lindsay way in the car after a fire accident, F1 CheTan began to attach importance to the safety of the clothes. In the past 30 years, F1 driver's uniform for flame retardant, anti high temperature also got continuous development of this purpose.

With the development of national economy, the sound and the health of the legal system and protection consciousness is growing, especially in petroleum and petrochemical enterprises of international cooperation and exchanges, to enhance safety consciousness, flame retardant protection in China's petroleum and petrochemical enterprises will be further promoted.

Flame retardant performance testing methods

On the current international smoldering performance test methods for flame retardant fabric has a lot of, such as China GB, British BS, Canada CGSB, German DIN, American FS, French ANF SNV, Switzerland, Japan JIS, Swedish SIS and internationally recognized standards such as ISO, a set of your own test standards and methods. And varieties of different categories of textile products or finished products, there are different testing methods, such as ordinary textiles (including all kinds of bedding), clothing textiles, including children's pajamas, overalls and flame retardant protective clothing, etc.), decorative, including curtain, curtain, tent cloth, etc.), ground covers (carpet, etc.), and the train, automobile, ship in textile products, etc. Test method can be divided into three categories, vertical test method, test method and tilt (45 °, 30 °) test method, with vertical test demands higher level test is low. The following will GB 8965 compare with other standards.

Take standard GB 8965 is China's national flame retardant. This standard is applicable to industrial furnaces, metal hot working, welding, chemical, oil and other places, engaged in open fires or send out sparks or operating in the vicinity of molten metal, and the combustible matter and angry dangerous places to work by use of flame retardant protective clothing. The reference to the same name in 1988 with the similar international standards and issued standard of industrial flame retardant clothing, and made the detailed rules for the following aspects: the overall performance of flame resistant clothing  fabrics, and suture of the flame retardant properties, mechanical properties, flame retardant protective clothing structure design, processing production, product packaging tags and transport, inspection method, etc. Fabric of the flame retardant performance testing methods of GB/T 5455, the test method is similar to the EN 532 is on the surface of the material that vertically ignition 10 s, then according to the test parameters to continue burning time, smoldering combustion time and the length of the damaged fabric can be divided into three levels. Arrangement of the flame retardant fabric, of secondary for qualified, level for excellent product. Test the fabric after 50 times of washing, shall not be less than 3, found in the test for nonconforming products are melting shrinkage phenomenon.

Standard test methods, instruments and equipment to manufacture, demanding conditions, strict operation complicated. Test results can be expressed in the laboratory under the condition of relative safety, flame retardant have good repeatability, but the results can not represent the actual fire, under the condition of risk and the combustion situation. Over the years, the domestic import or design a variety of flame retardant test equipment, test and a variety of conditions, for these standard method, to obtain the good reproducibility, test condition is the key. One of the biggest influence on data was (1) the fabric and the temperature and humidity of the air; (2) the flame size and temperature; (3) all round ventilation (test case), etc.; (4) the sample size and the relative position of a fire. Experiment also found that a variety of standard test method, due to the different requirements and conditions, the results often have difference, sometimes the results of a standard method is better, but for another method, the result is bad or very poor. Various standard test methods, therefore, can only explain in a regulation under the experimental conditions, the burning of fire, heat, or said security, can not explain in the actual fire danger in fire or burning.

Classification by type of flame retardant compounds

( 1 ) inorganic flame retardants : inorganic flame retardant main role is endothermic , the main varieties of aluminum hydroxide, magnesium hydroxide , red phosphorus , antimony oxide , molybdenum oxide , ammonium molybdate , zinc borate , zinc oxide , zirconium oxide, hydroxide, zirconium, etc. , in which aluminum hydroxide , magnesium hydroxide, red phosphorus , antimony oxide, the most widely used , in particular aluminum hydroxide, magnesium hydroxide can not only play a flame retardant , and can play the role of filling . They have good thermal stability , high efficiency , smoke suppression , resistance drops, fill safe, environmentally clean and cheap and other basic characteristics of the flame retardant material has been widely used . However, poor washability inorganic flame retardants , inorganic flame retardant because with strong hydrophilic polar , non- polar fabric with poor compatibility . Meanwhile, in order to achieve the required flame retardant fabric , a large amount of inorganic flame retardant added , the mechanical properties of materials and processing performance impact . Therefore, the conventional ultrafine inorganic flame retardants and nano research in recent years has been unprecedented attention. In addition, to reduce the effect of the same flame retardant amount of a flame retardant compound , flame retardant research synergies , but also flame retardant research direction in recent years .

( 2 ) organic flame : organic phosphorus-based flame retardants and halogen is divided into two series . The former use is very restricted. Halogen includes chlorine and bromine flame retardants two categories. However, chlorine-based flame retardants brominated flame retardants to be better than the poor , and this is difficult to produce because of the reason of free chlorine group . In addition, as bromide, corrosive and toxic thermal decomposition is relatively small , and therefore the small amount of chloride can be achieved using the same flame-retardant effect . Therefore, use of brominated flame retardants much more common . However, the use of the total situation, halogen flame retardant due to its decomposition products containing halogen acid , smoke big , harmful , etc, are gradually being replaced by other inorganic flame retardants .

Flame retardant textile multifunctional composite fabric finishing production process

Textile flame retardant properties, three methods can be obtained . One is for flame-retardant treatment of textiles , to reach the fire retardant purposes, but the flame retardancy and washing with time gradually increase the number of weakened or disappeared. For cotton, linen, wool and other natural fibers , can only be used after finishing methods, namely by adsorption deposition, chemical bonding , van der Waals forces and non-polar bonding and so on. Another method is the direct production of flame retardant fibers , textiles made from such fibers having a permanent flame retardancy. Polyester , polyvinyl alcohol and other synthetic fibers they use this method. The third method is based on the actual needs of the production , effectively combine these two methods produce flame-retardant textiles. In addition to considering its flame retardant fabric , but also take into account the toxicity of flame retardant products and melt , so as to minimize the human and environmental damage.

Functional fabrics gradually become the mainstream

In the fierce market competition, functional fabrics to meet the different industries, different groups of people , such as traffic police on duty on the road , you need to wear clothing with reflective functional fabrics , doctors in the operating medical devices with radiation , you need to wear clothing with anti- radiation function . Functional fabrics to meet the individual needs of different consumers , but also to the colorful textile market , because of this, functional fabrics are always standing in the forefront of fashion , as many corporate R & D objectives and direction of the chase .
Functional fabrics mainly refers to the fabric with a waterproof, cold, fluorescent , antistatic , flame retardant, anti-UV, moisture management , memory and other functions , different from before , now in the manufacture of fabrics fabric began to consider the function resistance to the second half of the " fabrics China" products, for example to send comments , sending Wujiang silk Co. heyday called " raw silk silk brocade grid ," the fabric is the use of green silk and veil as raw materials , together with the appropriate organizational structure made ??of warp and weft density , are green fabric , both silk gloss elegance, good permeability characteristics , and good moisture insulation. Breathable functional fabric is one of the hot summer is slowly away , looking back at the summer clothing market , thin silk products still occupy the mainstream , chiffon, cotton, silk , etc. Different combinations showing a different perception and feel. Take silk products , the main raw material is silk , adding different proportions of other ingredients to form a different fabric types . Like silk georgette silk Shun Yu , products made ??of 100 % silk , feel good , color positive , easy to fold and to embody the characteristics of the light breathable .
After the above described functional fabric we know has gradually enter the market , and gradually accepted by people , become the market mainstream . However, due to space issues , I will not say in detail , if you have this need can contact us , we have professional staff will answer all your questions , or visit our website directly related information . Cooked City Yu Sen International Trade Co., located in the Yangtze River Delta, historical and cultural city - Changshu , mainly producing knitted fabrics, mesh fabrics, functional fabrics, coral velvet, clean cloth and other products are mostly used in apparel fabrics , partly as textiles, decorative fabrics , exported to many countries and regions.

Application of fire retardant fabric

Retardant cloth with nanomaterials and nanotechnology treated cloth made draperies , reaching retardant effect, but also has the following characteristics:

1 In the existing curtain on the basis of the basic functions , additions and enhanced flame retardant fabric, insulation, thermal insulation , sound absorption, sound insulation, anti-bacterial , anti-mildew , waterproof, anti-oil, dirt, dust, anti-static and other functions ;

2 curtain fabric width from 1.5 meters to 3.1 meters , can meet a variety of apartment windows the height and width of need ;

3 Safety tasteless , environmental protection, low-carbon energy , do not wash , no maintenance , has been clean, water-saving, worry easy .

Static contact with clothing

People's lives and production of all contact with static electricity , static electricity , directly or potentially brought to mankind from all aspects of varying degrees of harm. According to expert analysis , gunpowder, chemical, pharmaceutical , oil and other workplace accidents fires , mostly due to static electricity generated by human activity exceeds the safety limit , accidental discharge spark triggered . According to statistics, from 1960 to 1973 in a fire and explosion caused by static electricity in an accident , there is only oil loading from 166 ; Japan electrostatic fires occur each year about 100 cases in which the body charged by causing fire occupies about 20% .

   Generation of static electricity of the human body wearing the clothing texture, activity strength, the type of working tools , the conductivity of the ground and the surrounding environment , the temperature and humidity are closely related . For a long time , people use grounding , shielding, and in other ways to eliminate static electricity hazards. Antistatic overalls on providing the body with electrostatic shielding , to eliminate or reduce static electricity hazard function . antistatic fabric clothing from the anti-static fabric for the fabric while sewing for may cause electric shock , fire, or explosion hazard wearing. Antistatic fabric used mainly in the textile production process , the substantially homogeneously mixed with equal intervals or whole or in part of metal or organic antistatic conductive material or antistatic synthetic fibers , or a mixture interwoven prevent accumulation of static electricity on clothing so as to prevent accidents resulting purposes.

Summer moisture functional fabrics work requires attention to what the basic content

In the summer time , people are always a little more headaches that some features are more prone to functional fabric always the case , but also in the dry after washing is not always easy , especially those types of materials especially cotton . Analysis point of view , the reason is all kinds of fabric functional summer peak period was mainly due to the climatic conditions are very conducive to mold growth , once the human contact , then easily lead to all kinds of skin inflammation, which for their own health is very unfavorable. In order to better achieve the basic needs moisture , how should take the necessary measures?

1 . Strengthen prevention

In everyday wear to note that, that is functional clothing is a decision can not wear , which is a necessary requirement for maintaining their own health .

2 To be washed separately

Functional fabrics for cleaning must be carried out separately , place it in a clean container for cleaning , to avoid mixing with other materials , which is a basic requirement.

3 dried as soon as possible

After the cleaning must be placed in a ventilated area , it quickly achieve dry.

4 . Eliminate moisture

To better achieve this effect in the closing time for ironing clothes look , which is more effective .

About functional fabrics applications require attention Introduction

As the weather gradually gets hot , fabric sales have gradually entered a new rhythm , a traditional thermal underwear have gradually entered the off-season , major shopping malls of the more popular types of fabrics mainly with some functional fabrics based . However, it should be noted that functional fabrics are not what people can wear , according to the actual characteristics to be judged , and now the fabric market fabric is very rich product range , which gave people a wider choice .

For consumers, these so-called functional fabric is very attractive , but many high technological content flaunt functional fabrics , many of them false ingredients , although the market many types of brands , but the quality is excellent little . Therefore, consumers must stay an eye , do not blindly chase functional fabrics propaganda slogans, to the actual value of geometry still needs to be just the right .

Take basic underwear material point of view , the most common functional fabrics can be divided into three kinds , namely natural fiber , which is made ​​from cotton and wool , the second fabric is made ​​on the basis of common there soybean fiber , etc. , and the third is a pure chemical fiber , such as polyester , etc., which is more of a distribution on the market .

Cotton flame retardant overalls instructions

First, the use

Cotton flame retardant coveralls for general industrial and thermal protection. In the fire occurred or clothes on fire , it should be left as soon as possible sources of ignition or heat , shaking clothes and clothes off as soon as possible . Flame retardant performance clothing fabric through a series of chemical treatment on the fibers adhered to , so when the cleaning needs special attention in order to keep it as long as possible fire protective properties. And we should be clear prior to use , flame-retardant overalls , there are many occasions does not apply , such as fire fighting , metal splash, industrial radiography and harmful light, a lot of welding to fly , high temperature environment , there are chemical splash and corrosion of the occasion.

Retardant overalls

Second, washing and drying Precautions

A new fire-retardant overalls needed before the first use to wash once.

2 , and the washing temperature should be controlled at 60 o C or less, do not use boiling water . In guaranteed under the premise of clean , try to use a relatively low temperature, shrinkage control clothing to prevent fire retardant overalls shrink.

3 , in the wash when you wish to use the fire-retardant overalls supermarket sales of household synthetic detergent , bio- synthetic detergent , PH value is preferably neutral . Avoid using strong oxidizing agents such as bleaching powder , sodium hypochlorite bleach products, avoid using fabric softener , these chemicals may diminish clothes flame retardant properties.

4 , avoid the use of soap and soap powder .

Another point to note , after completing the washing retardant overalls to avoid direct sun exposure , may take the natural drying or machine drying, and drying temperature must be 70 ° C or less, when the clothes were still a little wet or dry immediately removed the clothes from the dryer to avoid excessive contraction of clothes .

If you need ironing, the clothes still a little humid circumstances ironing as well. Cotton flame retardant overalls we can use dry cleaning, general commercial dry cleaners will not affect its flame retardant properties.

Flame retardant overalls performance test methods

Existing national laboratory test method number of small data obtained flame has great limitations , can only be used under certain conditions, relatively uniform fiber materials flame retardant properties relative , but not to evaluate the material 's fire behavior. Small laboratory test methods exist any strong limitations own big insurmountable disadvantage , in some special occasions by the small-scale test method can not obtain the required data, the direct use of standard large-scale tests, such as corner tests. Some developed countries are flame retardant technology to build a simulation of large-scale fire test method , or create some special mathematical and physical model test results extrapolated from small flame retardant overalls material burning in the fire behavior , but this is costly, not all countries can achieve, so gradually adopting some of the larger test method or combination of several test method used to evaluate flame retardant properties of materials is necessary .

flame retardant coveralls performance test methods : combustion experiment

By combustion experiment, the sample was measured mainly used carbonized area , damage length , continued burning and smoldering time . Certain size sample box with the prescribed burning prescribed fire ignited 12s, measured after removal of the source of fire retardant overalls sample continued burning and smoldering time . Smoldering stopped, measured according to the method specified in damage length . According to the relative position of the sample and the flame can be divided into vertical method , tilt method and level of law .

Vertical method is currently the most common method. Such experiments than 45 ° , horizontally burning more intense . Vertical combustion test was divided vertically damage length method, vertical flame spread performance measurement method, the sample perpendicular to the Determination of ease of ignition and combustion properties of the surface assay . GB/T5456-1997 provides Textiles - Burning behavior Flame spread properties of vertically oriented specimens determination under the Act with the requirements arising from the igniter ignition flame , ignition timing required for ignition of the sample perpendicular to the flame retardant overalls , Flame spread to the mark on the sample line ( specified distance ) the elapsed time ( in seconds ) . Can be observed simultaneously measured and recorded samples and other relevant flame spread performance. GB8746-88 provides the combustion properties of textile fabrics ease of ignition of the specimen perpendicular to the measurement , the method generates a predetermined requirements igniter flame retardant clothing for ignition of the sample perpendicular to the measured ignition flame time needed clothes . GB8745-88 provides the combustion properties of textile fabric surface measured at specified test conditions, ignited near term portion supported on the vertical panel fluff dry specimen surface , measuring flame spread down to the surface of the fabric tag line of the time .

Retardant overalls quality verification

Flame resistant overalls, the supplier shall obtain inspection reports, test reports view product characteristics, production batch, production date, and whether the fabric swatches available for the products the same. Since the structure of its flame retardant effect overalls great relationship, in the inspection ordered retardant overalls should pay attention to:

1. Overalls buttons, zippers, hooks, tripping and other accessories, preferably plastic, nylon and other non-metallic materials. If overalls selected when making metal accessories, candidates wear it, and engage in various activities to ensure the wearing, the metal accessories are not exposed.

2. Overalls look the opposite pocket, welt, reinforced cloth, etc., preferably use the same fabric, flame retardant; using other materials produced, the exposed area should be smaller than a full retardant clothing exposed area within 20%.

3. For weatherization or other special requirements made padded, fully padded overalls, its cotton inner sleeve, full lining should be detachable.

4. See flame retardant fabrics, the same type of conductive fibers added the higher the density, the better the flame retardant accordingly.

Retardant overalls conservation

Packaging and storage in transit should be noted that there must be fire-retardant overalls covering above shall not damage the packaging, to prevent the sun and exposure to high temperatures; handling process strictly prohibited to use crochet drag. Retardant overalls should be stored in dry and ventilated warehouse, to prevent spoilage or deterioration. Storage, more than 200mm off the ground and walls, leaving everything to heat more than 1m. Avoid direct sunlight, non-open place. Retardant wool knitted packaging, plus the right amount of storage required moth agent.

Maintenance of flame retardant fabric overalls

Retardant overalls best to use neutral detergent, do not wash with other clothing shuffling, using hand or washing machine gentle washing program to prevent conductive fiber breakage. Wash water temperature should be below 40 ℃, rinse with water at room temperature. Washing time as short as possible, but must be rinsed thoroughly to remove residual detergent. Both flame retardant overalls and oil properties, do not use bleach, organic solvents decontamination.

Dacron fabric flame retardant finishing technology

In recent years, China's average annual number of fires is 3-40000, the death toll 2-3 thousand, fire losses equivalent 2-300000000 yuan, but also on the rise. According to the United States, Britain, Japan and other countries on the cause of the fire investigation, fire caused by the textile fires accounted for half of the total. So to prevent fires caused by the textile issue has drawn worldwide attention.
 With all kinds of civil and industrial textiles consumption increased rapidly, especially in a variety of interior decorative fabrics and bedding cabin increasing demand from textile fires is increasing. The 1960s Japan, Europe and other developed countries on textiles flame retardant finishing requests, and develop all kinds of textile flammability standards, China has also developed a corresponding flammability standards, clearly put forward the test methods of flame retardant products and technical specifications, quality control of textile flame retardant to provide a guarantee. In the application, from the types of textiles and places restrictions applicable to non-fire-retardant fabrics.
 Since polyester fabrics from synthetic material properties, and therefore have a highly flammable characteristics, and thus the development of textile polyester flame retardant is extremely important. In addition, as flame-retardant polyester fibers during the spinning process by limiting the amount of fire retardant material is added, it is difficult to achieve the desired flame retardant effect. According to the characteristics of polyester fiber, we used high-tech Co., Ltd. Beijing Jlsun retardant polyester Padding ATP through the process at high temperature setting, the flame retardant fabric material of small molecules embedded in polyester macromolecules, forming a good bonding, exhibit both excellent flame retardant effect, have excellent washability.
Second, the polyester fiber flame retardant mechanism
       Many different types of polyester fiber, and its structure are not the same, and therefore its combustion is also different. Textiles and other substances are also burning, must meet three conditions: heat, air and combustible materials. Textiles combustion, are caused by external heat, when the temperature of the heat source reaches a certain height, the decomposition or pyrolysis to produce combustible gas, mixed with oxygen in the air and to fire. In the meantime, in the gas, liquid and solid phases occurring physical and chemical reactions are very complex and subject to many factors, so far it is still hard for quantitative analysis. The qualitative description of the combustion of textiles is also not perfect.
 Textiles combustion process comprises heating, melting, cracking and decomposition, oxidation, and other steps fire. The speed of the individual steps is also influenced by many factors. Textile heating, the first evaporation, softening and melting such physical changes, is followed by chemical changes such as cracking and decomposition. Physical change and textile fibers heat, thermal conductivity, heat of fusion and evaporation latent heat and so on; chemical change and determine the fiber decomposition and cracking temperature, the size of the latent heat of decomposition. In addition, the types of textiles, organizational structure, surface morphology on the combustion is going to affect.
 1. Pyrolysis polyester fiber
 The textile fiber pyrolysis combustion process is a critical step which determines the composition and proportion of cleavage product, as to whether the continued burning great relationship. Learn textiles pyrolysis and the pyrolysis product that can help us develop and formulate textile flame retardant finishing process. By making these flame retardant finishing reduce flammable substances or to be closed in order to achieve the purpose of flame.
 Polyester fiber is one of the widely used synthetic fiber, its combustion and other synthetic polymer materials, the exposure and high-temperature heat source, after absorbing heat thermal cracking reaction, thermal cracking reaction of flammable gases, flammable gases in the air ( oxygen) in the presence of, the occurrence of combustion, the combustion heat is absorbed by the fiber, but also to promote the fibers continue and further combustion of pyrolysis to form a loop. Synthetic sustained combustion, must meet the following conditions: ① polymer decomposition to produce combustible gas; ② the heat produced by combustion, the polymer is sufficient to heat, so that the combustible gas produced continuously; ③ resulting physical and oxygen gas can mixed, and spread to the ignition part; ④ combustion section to spread to a mixture of combustible gas and oxygen zone. For these four conditions have been proposed flame retardant of the basic principle: decrease (or substantially no) pyrolysis gas generation, the basic reaction of the combustion gas hinder the absorption of heat combustion zone, the air dilution and isolation.
2. Polyester fiber flame retardant mechanism
Flame retardant material, often by gas flame, condensed phase flame retardant and heat exchange interrupt mechanism to achieve such. Inhibition of growth promoting combustion reaction chain radicals play a gas flame retardant functions are; in the solid phase delay or prevent the polymer from the thermal decomposition of condensed phase flame retardant effect is; burning part of the polymer heat away as a result of fire, heat exchangers belong to interrupt management class flame retardant. However, combustion and flame are very complex process and involves a lot of factors that affect the mechanism of a flame retardant system is divided into a strict one is difficult, in fact, a lot of flame retardant system simultaneously in several resistance burning mechanism work.
Polyester fiber fabric flame retardant finishing modification process is simple, low cost, from the circulation of diversity and degree requirements for a wide range of flame retardant adaptability of view, than the original silk favorable modification method. However, if the amount is more flame retardants, the texture and color of the fabric greater impact. Polyester fiber fabric flame retardant finishing methods generally have the following three categories:
1) as a flame retardant design imaging dyes adsorption-type structure, the use of finishing - stained a bath process.
2) with a hot melt method with great affinity flame retardant polyester fiber fixed to the fiber. This method is suitable for flame retardants narrow range, little effect on the texture, wash fastness.
3) dissolution retardant and easy to use, flame-retardant effect is good, for natural and chemical fiber fabrics and paper intolerance wash flame retardant finishing, but also for hotels, cars and other interior materials used in flame retardant finishing.
Third, the flame retardant finishing process
 Flame retardant fabrics can be woven from fibers directly, since the method is a melt-spinning process by adding synthetic material flame retardant fiber, it should be the type of flame retardant material, physical characteristics, and add amount, or else we will have a direct impact on the effect of flame-retardant fibers and fiber spinning process of implementation. Due to the restriction of flame retardant material added (typically was 3%), so this flame-retardant fiber is generally not achieve the desired flame retardant effect, so this method is rarely used. General process is the use of flame-retardant fabric fire retardant finishing methods. According resistance
Flame retardant properties and varieties of polyester fabric and the fabric uses, different finishing methods.

Detailed special anti -static clothing ironing nine major skills

Antistatic fabric clothing as special clothing , their craft ironing clothing needs more than usual , anti-static clothing ironing techniques that can be summarized as follows :
Anti-static clothing must be light hot, so the fabric can restitution.
The first part of anti-static clothing is usually very vital parts , these parts of the special needs is stiff , durable without deformation , and thus the weight of these parts can only be a good hot talent , played stereotypes intentions.
Frivolous anti-static clothing in iron temperature is high, ironing faster, not repeatedly re-ironing , ironing because some tailors can not exceed the degree of heat-resistant cloth . When the iron is heated beyond the desired temperature or time limit , fabric strength decreases , easily scorch or burn out the aurora , as long as the acceleration ironing abilities to overcome these deficiencies.
Thicker on some anti-static clothing , for example: split head , welt , etc. Iron to neglect speed , to hot dry ironing, otherwise the parts to resurgence , reach stiff role.
Push pull process is owned by a particular way , that is, the amount would go to pull the orientation must be oriented so that the normalized flat silk thread around pulling clothes and uniform .
In the thicker parts of the anti-static clothing is also the site of a large water demand , it is necessary to use simmered way line irons stay in this area there is a time limit , competence adhere two layers of fabric heat balance.
Some parts of the present anti-static clothing folds easy ironing. For example: when ironing pants loop Move the iron gently squatting a few obedient body to reach the level of intentions.
In the anti-static clothing processing some parts do not need to stress and squatting approach , the choice of point approach may reduce the friction on the tailor , ironing rendered completely defeated Aurora appearance .
Anti-static clothing ironing stereotypes , many of the parts to be given a certain pressure , the yield point of the cloth , to deform , ability to reach the intention of setting . Anti-static clothing factory ironing , we must be careful attention , a good ironing clothes appearance lasting stick .

Safety protective equipment selection and use errors

Wear suitable protective equipment is to protect the safety and health of workers' lives and the last line of defense, the correct selection of the appropriate level of protective equipment can effectively prevent occupational poisoning and occupational diseases. The correct selection of labor protection products is to ensure workers' safety and health of the premise. Labor protective equipment used should adhere to the following principles:

    First, according to the national standard labor protection products selected

    National standards, "labor protective equipment selection rules" (GB11651-89) and national labor protection products with standards and regulations for the selection of labor protection products provide legal technical basis.

    Second, according to the relevant provisions of labor protection products to buy

     To ensure the quality of labor protection products, our special labor protection supplies of production under the production license, identification card and product safety certification and safety signs three-card system. Production of special labor protection supplies business, but also in accordance with the product on the basis of standard products for self, and issue product certification. Special labor protection supplies should be accepted in the factory where labor protection products quality supervision and inspection agencies sampling, inspection agency assigned by lot security identification card. And by special labor protection supplies safety signs management institutions, strictly examine and issue safety signs. At present, China has a helmet, gas mask filter mask, gas mask filter canisters, safety belts, welding mask, welding goggles, anti-static conductive safety shoes, dust masks, protective toe safety shoes (boots), resistance burning protective clothing, safety nets, anti-shock eye goggles, safety boots rubber surface anti-smashing, anti-acid clothes, Protective Fabric, shoes, acid and alkali, anti-puncture shoes, insulation shoes, rubber shoes and other 19 kinds of low voltage insulated special labor protection Goods must be issued production license to produce and must be attached to a product "safe identification card." This is 19 kinds of optional protective equipment should see if there are "three cards" a sign, if not it is illegal products.

     Third, using the principles of deadlines and scrap

     Flame resistant overalls to the workplace environment with the period of use, frequency of use of labor protection supplies, labor protection products, and many other factors inherent nature. According to the actual situation in some areas developed mandatory: If Shandong Province based on the operating environment, use of helmets for industrial enterprises is defined as the period of use: Metallurgical rolling mill slab job 36 months; cold job 48 months; coal operations, civil job 24 months; Geological pits jobs fitters, drillers, sampling work for 12 months.

    In general, life should consider the following three principles:

     1, corrosion

     Depending on the operation of the labor protective equipment worn operations can be divided into heavy corrosion, corrosion of corrosion and light jobs jobs. Corrosion reflect the operating environment and the types of usage.

     2, wear and tear

     According to the degree of protection reduces wear and tear can be divided into susceptible, medium and mandatory retirement by the loss. Care products by the loss of protective performance reflected the situation.

     3, durable performance

     According to the life cycle can be divided into durable, durable and non-durable medium. Durable performance reflects the material conditions of labor protection products, such as using high-temperature flame-retardant fabric made of flame-retardant protective clothing, fire retardant treated than fabric flame retardant protective clothing and durable. Durable performance reflects the comprehensive quality protective equipment.

Cotton flame retardant overalls instructions

First, the use

Cotton flame retardant overalls for general industrial and thermal protection. In the fire occurred or clothes on fire , it should be left as soon as possible sources of ignition or heat , shaking clothes and clothes off as soon as possible . Flame retardant performance clothing fabric through a series of chemical treatment on the fibers adhered to , so when the cleaning needs special attention in order to keep it as long as possible fire protective properties. And we should be clear prior to use , flame retardant fabric overalls , there are many occasions does not apply , such as fire fighting , metal splash, industrial radiography and harmful light, a lot of welding to fly , high temperature environment , there are chemical splash and corrosion of the occasion.

Retardant overalls

Second, washing and drying Precautions

A new fire-retardant overalls needed before the first use to wash once.

2 , and the washing temperature should be controlled at 60 º C or less, do not use boiling water . In guaranteed under the premise of clean , try to use a relatively low temperature, shrinkage control clothing to prevent fire retardant overalls shrink.

3 , in the wash when you wish to use the Flame resistant overalls supermarket sales of household synthetic detergent , bio- synthetic detergent , PH value is preferably neutral . Avoid using strong oxidizing agents such as bleaching powder , sodium hypochlorite bleach products, avoid using fabric softener , these chemicals may diminish clothes flame retardant properties.

4 , avoid the use of soap and soap powder .

Another point to note , after completing the washing retardant overalls to avoid direct sun exposure , may take the natural drying or machine drying, and drying temperature must be 70 ° C or less, when the clothes were still a little wet or dry immediately removed the clothes from the dryer to avoid excessive contraction of clothes .

If you need ironing, the clothes still a little humid circumstances ironing as well. Cotton flame retardant overalls we can use dry cleaning, general commercial dry cleaners will not affect its flame retardant properties.

Definition and working principle of waterproof fabric

Waterproof Fabric is a new textile fabric , its composition by the polymer waterproof breathable material (PTFE membrane ) plus composite fabrics made ​​of cloth . Waterproof breathable fabric main features are: waterproof, breathability , insulation, windproof and warm. Speaking from the production process , the technical requirements of waterproof breathable fabric waterproof fabric than the average much higher ; also from the quality point of view, waterproof and breathable fabric also has other waterproof fabrics do not have functional features. In strengthening the fabric waterproof breathable fabric tightness , water tightness , while its unique vapor permeability resistance, can be quickly discharged water vapor inside the structure , to avoid structural breed mold , and always keep the body dry , the perfect solution breathable and windproof , waterproof, warm and other issues, is a healthy and environmentally friendly new fabric .
Truly waterproof fabric long in a humid climate environment can withstand the pressure of water seepage , water seepage . Such as a long walk outdoors in wet and windy , kneeling or sitting on the wet ground , are not water seepage.
In the vapor state, the water particles are very small , according to the principle of capillary movement , can successfully penetrate into the capillary to the other side , so that the phenomenon occurs vapor permeability . When moisture condensation becomes drops , the particle becomes large , because the surface tension of water droplets ( water molecules to each other " counter pull " ) , the water molecules can not penetrate the drops smoothly from the other side , which is prevented water penetration occurs , the membrane with the water vapor permeability function.

Flame retardant fiber production process

There are Flame retardant fabric manufacturing coating, blending , and graft copolymerization modification method and core-sheath composite spinning method . Coating method is a fiber made ​​of a flame retardant used in the production process or its physical adsorption or chemical binding , the flame attached to the flame-retardant fiber to achieve the purpose of the method . However, moisture can lead to physical adsorption , toxicity and other issues, it will cause fabrics chemisorption strength decreased , feel hard and other defects. And this fire-retardant treatment method limited scope depends on the skills and finishing plant , the treatment effect instability, poor durability . This method is generally used for natural fiber fabrics and synthetic blended fabric with flame processing, can also be used for pure polyester , polyacrylonitrile fabric processing , but the application is not common. Blending the spinning slice that is added during the manufacturing process or the flame retardant was added to a melt spinning method to obtain flame retardant fiber . To produce a flame retardant polypropylene fiber , the addition of flame retardants , there are two methods : ① Full Granulation : the polypropylene , flame retardants , stabilizers were blended , and extrusion granulation . Pellets with this spinning , flame retardant properties can be obtained with polypropylene fibers. ② masterbatch method: flame retardants, carrier , stabilizer were blended granulation, which is masterbatch pellets . Spinning , the polypropylene masterbatch certain proportion slices mixed, and spun to obtain a flame retardant polypropylene fiber . This method uses the more common , reducing the spinning temperature , to improve the spinnability of the polypropylene , the yarn strength, elongation qualities such little effect . Copolymerization polymer that is added during polymerization of the monomer in a flame retardant obtained by copolymerizing a molecular chain containing fire retardant chemicals unit slice spinning method . Modified polymers using this method , durable flame retardancy . This method is mainly used for addition polymerization type ( polyacrylonitrile ) and polycondensation type ( polyester, polyamide ) . Graft modification method is to use radiant heat , high-energy electron beam or chemical initiator of the fiber and flame retardant monomer graft copolymerization, to obtain effective and lasting flame retardant modified method . Fire retardant and flame retardant modified fiber grafting monomer graft copolymerization retardant elements and relevant parts . The flame-retardant sheath-core composite spinning method for modifying the application is not common , primarily because of the need complicated spinning apparatus . In recent years, composite flame retardant polyester fiber spinning method , the use of skin - core structure , that is, or add a flame retardant copolymer polyester core common polyester composite spun from the cortex . This is to prevent premature decomposition of halogenated flame retardants affect hydrogen halide leave the flame retardant effect, and also prevents certain shortcomings of phosphorus flame retardants are not high temperature , but also to maintain the original appearance of the fibers , whiteness and dyeability .

UV method for producing textile fabrics

UV fabric , there are two methods, one fiber-forming polymer in the polymerization process or added to a molten state composition having an ultraviolet shielding performance . Choose a suitable UV absorbers with fiber-forming polymer with a monomer copolymer prepared by the UV copolymer , and then spun into UV fibers. Second, in the fiber manufacturing process or any stage UV shielding agent into the fibers. UV manufacturing fiber spinning can be obtained by blending the UV- screening agent or an ultraviolet absorber polymer powder added to the polymer blend or direct spinning , can be made ​​of anti-UV masterbatch then spun .
UV shielding agent through the coating or impregnation processing methods for finishing of textiles . Coating method is generally added in the amount of coating agents ultraviolet shielding agent , the surface of the fabric with the applicator for precision thin coating , and after drying , and the necessary heat treatment, a thin film formed on the surface of the fabric . Dipping the shielding agent is usually combined with the fiber , organic screening agent and fiber bonding is mainly masked by crosslinking agent molecules to macromolecules and fiber links , inorganic screening agent with the fibers primarily by adhesive binding shielding agent stuck in the textile fibers.
UV radiation UV shielding agent mainly rely on the reflection and absorption of the UV radiation on the fabric by triple shielding against UV , which is to go through the surface of the inorganic screening agent reflection , through sub-layer absorbs organic screening agent , and finally by the inner fiber its absorption , can achieve the purpose of shielding ultraviolet radiation . Cross-linking agent can be crosslinked organic UV screening agent on the fiber , the inorganic mask by an adhesive agent adhered to the fabric surface . If the fabric through double shielded , can achieve the desired results , usually only after a finishing can be.
According to the information abroad , the fabric UV shielding rate of about 90%, in order to achieve practical requirements. Therefore, the need through a certain process, improve the fabric UV absorption properties.
Textile fiber itself has a certain UV shielding effect absorption , UV textile raw materials should be preferred to absorb UV shielding itself has a certain function of the fiber. Differences in the structure of the fiber , various fibers to UV shielding effect are quite different . Polyester molecules containing benzene , wool, silk and other protein fibers molecules containing aromatic amino acids, strong UV absorption ; cotton , rayon and other fibers to UV absorption is weak. Bamboo fiber contained sodium copper chlorophyll is safe , good UV absorbers , UV its antibacterial deodorizing effect is cotton fabric 20 times .

In addition , bamboo fiber also has strong moisture absorption , antimicrobial resistance, good dyeing and breathable performance, delicate and smooth , cool feeling , light , wearable , beautiful color, good drape properties. So, choose anti-acid fabric has some excellent shielding ultraviolet absorbing bamboo fiber as raw material .
Inorganic zinc oxide UV shielding agent reflection wavelength 240-380nm, shielding effect, and inexpensive , non-toxic. With bamboo fiber contained sodium copper chlorophyll absorption wavelength of 180-290nm play a complementary effect.
The organic ultraviolet shielding agents are salicylic acid lipid compound, a metal ion compound , benzene, ketones , and benzotriazole . Salicylic acid lipids low melting point, easy sublimation and the absorption wavelength distribution in the short side of the compound of the metal ions , often used as a chelate , benzene, ketones high prices . Therefore, the choice benzotriazoles .
The impregnation method , a dipping process has little effect on the texture of the product . Summer apparel fabrics to light the main varieties , with the impregnation method of processing is more appropriate.
As a benzotriazole ultraviolet absorber is insoluble in water , such as the shield is dissolved in a nonaqueous solvent finishing , only the operation inconvenient , and pollution of the environment , the use of benzotriazole UV absorbers for emulsification , the shielding agent is uniformly dispersed in the aqueous phase , with a crosslinking agent treatment liquid epoxy dubbed . Then by dipping, drying and curing process .

Retardant fabric is welders security methods

Flame retardant fabric is welders security methods : modern industrial production , although the welding process started relatively late , but it showed an increasing pace of development trend , more and showing irreplaceable advantages , because it casting, forging phase combination makes it increasingly high cost . But contrast , welding work in fires , explosions shocking. I combine many years of work experience, summed up some of the lessons of the accident , the welding job security methods and studies done some summary , mainly as follows:
First, safety knowledge training and learning is to carry out welding work technical support. Construction workers on the one hand, technical requirements , welders must be certified , only after rigorous technical examination apprenticeship , independently. The other is to continuously improve the safety awareness of welders , their own qualities , such as frequent fire of knowledge training for welders , such as fire-fighting for different combustion methods , use of fire extinguishers ; fire and explosion welding process knowledge, such as combustible gas, liquid fire , explosion-proof method , the process of cutting fire technology ; basics of hazardous chemicals , and other substances in the combustion basics .
Second, the safe construction environment is the premise and guarantee to carry out welding work . There is flammable and explosive materials , fire ban area or place does not understand the surrounding environment is not possible to operate these solders parts should be removed and transported to a safe zone for construction operations. If there are flammable, explosive, toxic gases indoor work, should be ventilated until the indoor flammable, explosive, toxic gases exhausted to the outside or density is small , the technical determination on construction sites , in order to ensure safe and reliable after before construction . If the construction site welding conditions bad, but can not be removed with combustible materials , welding materials and must not be removed during the construction , fuel can be processed , such as covered fireproof , water increases the humidity and other ways to achieve the fire safety purposes.
Third, prior to welding the welding object is to ensure that the necessary cleaning an important part of the welding job security . Be sure to investigate the exact circumstances of welding material inside , if the welding material was stored in flammable and explosive liquid substance, it should be cut, cutting , welding operation, the first of these substances to clean , if there is not dissolved solids residue stream object should be clean, then rinse eradication ; if the welding material to store flammable gas, gas to displace the specific actions are available inert gas or water and other substances injected into the weld material in order to achieve the combustible out of the gas replacement purposes. The internal processing clean , be sure to do the welding material and technical determination of the construction site to ensure safety . In addition , the welding point next to the parcel of combustible materials must not be welded , should be removed before work .
Fourth, personal safety is to ensure the safety of an important prerequisite for welding operations . Personal protective measures Flammability class mainly refers to the head , face , eye, ear , respiratory, hands, feet and body such as personal protection. There are dust-proof , anti-virus , anti- noise and anti-high temperature radiation , anti- radiation , anti-UV fabric , anti mechanical trauma. In addition to general welding work wear protective equipment ( such as overalls, gloves, goggles and masks ) , the occasion for special operations , you can also wear a welding cap ventilation to prevent coal dust. Place for highly toxic in case of emergency repair welding operation , can be worn isolated oxygen breathing apparatus, to prevent acute occupational poisoning accidents. To protect your eyes from arc welders harm must be used during welding mask inlaid with special protective lenses , and according to the intensity of different welding current to choose different types of filter chip . Welders should wear light-colored or white canvas overalls and fastened cuffs , collar buttoned , the skin is not exposed, to prevent skin injury. For a long time to work in noisy environments should wear ear protectors to reduce harmful levels of noise on people .
Five , before and after welding the welding material safety checks is to ensure that the importance of safety measures in welding operations . Before welding the welding object whether it is or whether there is pressure sealed to check if there is pressure present , must not operate , they should immediately relief , open the device. Even if all the security checks already done , but also according to site requirements spot welding , welding materials , welding quantity with a certain amount of fire fighting equipment . For complex environment , harsh conditions of the construction site , but you can call fire , laying of water in order to keep on standby, ready to do proactive .
Flame welding work at the end of multifunctional composite fabric , it can not be taken lightly and some welding accidents often occur in the final stages of construction , in the construction of everyone's vigilance is often relatively high, and to the final stage , suddenly relaxed , after established safety measures can not consistently perform , so as to cause a number of serious accidents . So finishing welding operations , should pay attention to the following points: First, the final stage is often after the withdrawal of a number of safety features , there will be some small part of the temporary need to do some fine processing , the workload is very small, but this time can not be sloppy , not trouble, but also safety only after resettlement work . Second, the welding is completed , a timely check welding quality is qualified, whether false welding , weld phenomena , weld pressure , hydraulic capacity whether the target in order to detect the problem before feeding in order to promptly resolve . Also, be sure to wait after soldering soldering material is completely cool before feeding . Third, thorough welding is completed, the workplace should be carefully checked whether there is difficult to find the fire , and would like guards or explain to the officer on duty , etc. , so that they stepped up patrols inspection, if found burning smell , the smell of unusual circumstances, should be promptly reported to the relevant departments and units , to take timely measures .
Therefore, the welding operation , the security involved from the welding technology, welding environment , clean the welding object to the welding job security of individuals and the welding operation inspection before and after welding and many other aspects of objects , should be sources of pollution, transmission, personal protection and other aspects of comprehensive management . Only by constantly sum up experience safe welding practices and good practice, ensure the welding quality of the premise , combined with the actual situation of the development of practical countermeasures against harmful factors, to create a safe , sanitary , comfortable working environment, in order to both to ensure the health of construction workers welding , but also improve the quality of construction and welding operations efficiency .

Selected retardant fabric four steps

flame retardant fabric industry booming market retardant fabric is also uneven, so we picked it pay attention to what , how kind of flame retardant fabrics more
For welders and working labor-intensive jobs . Then the selection of the time mainly the following four steps:
First : Look retardant fabric for each trademark , complete, sign and have the correct security maintenance, maintenance , washing instruction manual is a must.
Second: touch retardant fabric, good quality feels softer feel , does not irritate the skin.
Third: Look retardant fabric appearance, no damage , defects and suture defects.
Fourth: to smell the smell of fire-retardant fabric , flame retardant fabric unqualified certain pungent odor and with a certain amount of toxicity, there should be a normal flame retardant fabric pungent odor and smell.
Mainly above 4 points , one by one test , you can choose to own ease, comfortable flame retardant fabric up .

How to test the flame retardant fabrics and other products

Variety of flame retardant products in public places , specifications varied , and how these products for thousands of flame retardant performance test is a common concern. After several convene an expert seminar on the following categories determined by flame-retardant properties of flame retardant products tested .
1 , fire-retardant building products : the same material and the same structure of building materials , if the thickest and thinnest material can simultaneously achieve a certain level requirements, may be considered material thickness in the meantime also meet the grade requirements . ( Flame retardant flooring materials : the same kind of material, if the thickest and thinnest retardant flooring materials can simultaneously achieve a certain level requirements, can be considered a thickness in the meantime retardant flooring materials also meet the grade requirements . )

2, the flame retardant fabric : the same material , if the minimum and maximum surface density fire-resistant fabric can simultaneously achieve a certain level requirements , can be considered flame surface density of the fabric article in the meantime also meet the grade requirements .

3 , flame retardant plastics / rubber : the same kind of material, if the thickest and thinnest flame resistant plastic can simultaneously achieve a certain level requirements, can be considered a thickness in the meantime flame-retardant plastic / rubber products also meet the grade requirements . ( Note: sample preparation , electrical enclosures , etc. can be shaped in a non- uniform thickness part sampling ; switches, sockets, select the flat parts as possible , if the sizes do not match, can be an appropriate way of stitching . )

4 , fire-retardant foam : the same density case, if the thickest and thinnest foam products can simultaneously achieve a certain level requirements, which can be considered as the thickness between the foam products also meet the grade requirements .

5 , flame retardant furniture / components: the same material and the same structure of the furniture / components, if large-sized furniture / components required by the test reaches a certain level , it can be considered smaller than the other specifications of the furniture / components also meet the grade requirements .

6 , wire and cable : the same kind of structure ( refer to inner and outer sheath , armor , filling materials, insulation materials identical ) similar cable if the maximum and minimum diameter product can simultaneously achieve a certain level requirements, which can be considered as the product between the OD also meet the grade requirements .

Anti-static overalls production of technical requirements

Select antistatic overalls antistatic properties have some durability , therefore , also need to choose antistatic fabric overalls pollution in the workplace determined by washing requirements , select the appropriate level of anti-static overalls .
 Antistatic overalls for fire and explosion sites, so should normally choose to have flame retardant anti-static overalls for workers to provide more reliable protection. Operatives and similar types of work stations to use anti- static overalls, should also have the effect of anti-oil .
 Cotton overalls made ​​to prevent electrostatic effect , but not necessarily be able to achieve the desired anti-static overalls one-piece garment electric charge is less than 0.6μC requirements , especially after washing , because the choice of detergent and other reasons, it prevent electrostatic effect will decline , therefore , the choice of cotton fabric, anti-static overalls, particularly in the northern dry areas , we must be careful.

For fireproof awareness

flame retardant fabric is sewn composite materials , with excellent arrangement layout and high temperature , electrical insulation , fire insulation materials fireproof antioxidant .

Fireproof fabric is sewn retardant composite materials , with excellent layout and arrangement temperature, electrical insulation , anti-oxidation and other excellent properties , high temperature of 550 ℃ -1100 ℃. Fireproof fireproof insulation material goods and to assist in the maintenance operation area , against welding spatter .


Fireproof applies to welding sparks , easily lead to fires occasions , able to withstand sparks splash, slag , welding spatter , etc. , play a barrier workplace , job separation layer eradicate welding operation can lead to the risk of fire.

Fireproof coating or composite through different disposition (PVC, chlorine tincture rubber, silicone , aluminum foil , etc. ) can be reached using different effects: waterproof, wear , corrosion , oil, heat-reflective , progressive resistance to temperature and holding time . About the object temperature greater than 550 ℃ , and advocated the use by vermiculite coated fiberglass fabric or high silica fiber woven fabrics. Fireproof insulation materials fireproof uncoated materials are usually softer , more suitable for concealed objects .

Thickness of less than 0.6mm fireproof fire fireproof insulation materials should be placed in a straight face used, that sparks the first time after the fall touch to prevent breakdown fireproof fireproof insulation materials ; horizontal plane should be selected using fire insulation thickness greater than 0.6mm data fireproof

Retardant textile technology status

For textile flammability characterization , availability limiting oxygen index, ie the material continues to burn fuel to maintain the minimum required percentage of the volume of oxygen . By limiting oxygen index (LOI) the textile materials into four categories : non-combustible (LOI ≥ 35%) of textiles, such as most metal fibers, carbon fibers, asbestos , boron fiber , glass fiber , PBO fiber , PBI ( polybenzimidazole ) fibers , polyimide fibers ; flame (LOI = 26 ~ 34%) textile products , such as Kevlar, Teflon , polyvinyl chloride , modified acrylic, modified polyester , modified polypropylene , modified polyvinyl alcohol , modified viscose , PPS ( polyphenylene sulfide ) , seaweed fiber, etc. ; combustible (LOI ≥ 26% ≤ 34%) textiles, such as polyester , nylon, polyvinyl alcohol , wool, silk , acetate fiber, etc. ; flammability (LOI ≤ 20) textiles, such as polypropylene, acrylic , cotton, linen, viscose fiber, bamboo fiber, soybean protein fiber, milk protein fiber. Although non-combustible fiber flame retardant effect is good, but most suitable for wearing or home , and most people used natural or chemical fibers are flammable or combustible , and only for such modification or finishing of textiles in order to improve their fire-retardant performance , that is, having a flame retardant capabilities through a variety of ways to reach into the textile flame retardant effect .

Fiber flame retardant fabric approach is to prevent or reduce fiber thermal decomposition , isolated or diluted oxygen, rapid cooling using its termination burning. To achieve the above object , a flame retardant function is generally the flame retardant polymer by polymerization , blending , copolymerization, composite spinning , and other technological then go into the fiber or the flame retardant coating finishing methods layer on the fiber surface or penetrate inside the fiber . In practical applications, often using a variety of flame retardant, synergistic effect of two or more ways to achieve flame retardant effect .

Anti-static cloth textiles Research In Motion

Anti-static cloth textiles textiles conduction through the electrostatic corona discharge or leakage , which has a permanent antistatic properties, easy to produce static electricity for a place in the staff wear, such as electronics , aviation, aerospace, petroleum, coal and other industries . Now the country has carburizing , stainless steel fibers , polyacrylonitrile fibers , State Grid Electric Power Research Institute of stainless steel fibers and textile fibers blended , prepared a 1000kV UHV AC antistatic protective clothing , and has good the electric field shielding effectiveness and wearing comfort . Preparation of anti-static fabric , the fibers can also be added internally electroconductive material or antistatic agent , or added to a conductive textile fibers or fine metal wire in order to obtain an antistatic effect . In recent years , researchers in the fabric by spaced by a conductive sheath-core fibers for the development of antistatic fabric , to obtain polyester (skin ) and carbon fiber (core ) to form a sheath-core type composite fibers, nylon and carbon fiber mixed spun to form a composite fiber. Japanese Charges Tian Zhengbo to iodine , copper core of polyethylene , polyester PET as the skin, the use of composite spinning method were organic conductive fibers conducting component along the fiber axis continuous , easy-to escape the charge of anti-static cloth .

Anti-static fabric garment production practices

Avoid clothing fabric is antistatic fabric static friction in some explosive situations are very dangerous , some of the work environment does not allow static interference , and therefore not allowed to wear clothing with the activities of the human body harmful static electricity. Used in electronics , aviation, aerospace, petroleum, coal and other industries of protective clothing and textile goods, must have good capabilities to eliminate static electricity . Market in recent years on the development of anti-static fabric and functional textile products , mainly in the fabric insert appropriate intervals conductive metal filaments in the spinning process or adding a certain percentage of the metal staple fibers , the use of metal is a good electrical conductor to conduction and eliminate static electricity.
Embedded in the fabric of conductive metal filament process is relatively simple way , but the use of this process to produce an antistatic polyester fabric cards , often due to cling to the outside of the metal filaments of the yarn of the fabric exposed surface unevenness , and the metal filaments are is not complete with fabric dyeing and coloring , so it seriously affects the fabric dyeing and finishing effects, caused by cotton fabric and anti-static and anti-static polyester card CVC anti-static fabric color flower uneven dyeing and finishing process is difficult overcome defects . In comparison, the spinning process at a certain mixing ratio man metal staple fibers , in certain conditions , it is possible to sufficiently uniformly mixed with the ordinary fibers , to achieve the same color . Weaving and spinning with the process that is able to maintain long-term anti-static function , but also a good solution after dyeing and finishing processes appear uneven dyeing color flower problem .

Flame retardant fabric fire retardant clothing fabric cleaning and maintenance

A . Precautions

. Retardant fabric suitable for use in general industrial and thermal protection. Clothes on fire in the fire occurred , they should leave as soon as the fire / heat, shaking clothes and clothes off as soon as possible . Cotton flame retardant fabric properties are processed through a series of chemical adhesion to the fibers , so the cleaning needs special attention in order to preserve it as long as possible protective performance.
        Suited occasions: fire fighting , metal splash, industrial radiography and harmful light, a lot of welding spatter and other occasions, high-temperature environment, chemical splash and corrosion of the occasion.

 Two . Washing and Drying Considerations
         ◆ washing temperature should be controlled at 60 º C or less, do not use boiling water . If you can clean , then use the water temperature as low as possible , so to minimize shrinkage .
         ◆ wish to use the supermarket sales of household synthetic detergent , bio- synthetic detergent , PH value is preferably neutral .
         ◆ Avoid using strong oxidizing flame retardant grade bleaching powder for example , sodium hypochlorite bleach products, avoid using fabric softener , these chemicals may diminish clothes flame retardant properties.

         ◆ Avoid using soap and soap powder .
         ◆ clothes is best to avoid direct sunlight package sun , take dry naturally, can also use the machine drying, drying temperature should be 70 ° C or less, or when the clothes were still a little moist when drying the clothes from the dryer immediately take walk, to avoid excessive contraction.
         ◆ If you need ironing, the clothes still a little humid circumstances ironing as well.
         ◆ cotton flame retardant overalls we can use dry cleaning, general commercial dry cleaners will not affect its flame retardant properties.
        ◆ new clothes for the first time need to wash before wearing again.
         ◆ washing temperature should be controlled at 60 º C or less, do not use boiling water . If you can clean , then use the water temperature as low as possible , so to minimize shrinkage .
         ◆ wish to use the supermarket sales of household synthetic detergent , bio- synthetic detergent , PH value is preferably neutral .
         ◆ Avoid using strong oxidants such as bleaching powder , sodium hypochlorite bleach products, avoid using fabric softener , these chemicals may diminish clothes flame retardant properties.
         ◆ Avoid using soap and soap powder .
         ◆ clothes is best to avoid direct sunlight UV fabric bag sun , take dry naturally, can also use the machine drying, drying temperature should be 70 ° C or less, when the clothes have been dried or still a little moist from dry clothes immediately when clothes dryers removed, so as to avoid excessive contraction.

         ◆ If you need ironing, the clothes still a little humid circumstances ironing as well.
         ◆ cotton flame retardant overalls we can use dry cleaning, general commercial dry cleaners will not affect its flame retardant properties.

The use of anti-static clothing items are what needs to pay attention to it

We should all be able to know that chemistry or physics in a class of industry, often during work clothes for dress requirements are very strict. While at work, the most are those who can not appear in the material with static electricity, so for this aspect of anti-static measures should be put in place very, otherwise it will have a significant impact. For example, people for such a request, to take protective measures is to wear anti-static clothing.

And this product is in use in the process, not everyone nuts on how, we still need to pay attention to some of the issues to be able to use more safe and effective. So, what should we pay attention to it?

First, antistatic fabric clothing specially treated materials are relatively easy to burn, we put on or take off this product, it is best not to be easier in some occasions fire or explosion under proceed. Secondly, we have to wear such clothes after, do not wear jewelry that are not related to metal, these things affect the static electricity is relatively large, we must draw our attention.

In addition, we have put anti-static clothing, you should always keep this product are neat and clean, must not have dust pollution. In short, we should go to properly pay attention to these details of things, good care worn this product.

Acid resistant overalls custom sewing process What are the requirements for

In our daily life, I believe that many have experienced friends to buy clothes will know when to buy clothes a must-see place is its sewing process how. And for a lot of special chemical companies, their employees will be more need to use a special work clothes, for example, they will use to prevent acid overalls.

Many enterprises in the selection of such products, that they will be a custom-made process, the requirements for its sewing process is relatively high, after all, is an important business technology needs a part of it. So, in custom-made clothing such time, the need for acid-proof overalls sewing process What are the requirements it?

Professional people tell us, because now many chemical companies are more specific, their clothing requirements for work is particularly high. Therefore, this product must have high sewing techniques required to be able to meet their needs. First, it must be sewn carefully, for each part of the sewing are not able to appear to have not closed the case, we must enhance the product airtight requirements. Secondly, the sewing process of protective suits, for each pin must be done every line of fine, to keep a beautiful state. We do this in two ways, you are able to produce products that meet the requirements of the standard.

Introduction of composite fabric

Composite microfiber fabric is kind used in a particular textile processing and unique dyeing finishing, and then by "composite" device processing. Composite material application of the "new synthetic fiber," the high-tech and new materials, has a lot of excellent performance (compared with ordinary synthetic fiber), such as fabrics exhibit fine clean, sophisticated, elegant, warm, plump appearance of the antistatic fabric, windproof, breathable, have a certain waterproof function, its main feature is warm, good air permeability.
Since use of microfiber composite fabric, so the fabric has a high cleaning ability, which decontamination capability. The fabric is also characterized by: good wear resistance, microfiber fabric feels soft, breathable, moisture, so in touch and physical comfort, has obvious advantages, microfiber fabric wrinkle poor (which because the fiber is soft, elastic recovery after crease caused by poor); To overcome this drawback, it adopted a "complex" process, thus greatly improves the microfiber fabric wrinkle shortcomings of poor. Composite fabric jacket fabric is popular in Europe and America.

Types of fabrics

According to different raw materials can be divided into yarn-dyed cotton fabric, yarn-dyed cotton fabric, dyed in the long wool tweed, wool tweed, wool-polyester tweed, wool viscose triple tweed, slub fabric, pimple gauze, each kind of blended dyed etc., as well as a raw material in linen dyed a lot.
Two: According to the weaving method can be divided into plain dyed, yarn dyed poplin, yarn dyed grid tweed, oxford, chambray, denim, and khaki, twill, herringbone, gabardine, satin, jacquard, jacquard cloth and so on.
Three: According to different process characteristics before and after the channel can also be divided into: Color by white sheeting (oxford cloth, chambray, denim, denim, etc.) Color by color weft fabric (gingham, plaid cloth, linen cloth, grid tweed, etc.) and due process nap after the Road, Fleece, sanding, milling and the formation of a variety of welding fabric dyed.
Four, depending on the manufacturing principles can be divided into knitting yarn-dyed and woven dyed. Above said are dyed woven, knitted dyed before weaving basic principle is good to knit first yarn dyeing, either warp or weft knitting machine can weave dyed, but mostly as a sliver Lord, can not make a grid to.

Retardant fabric has those features

Speaking retardant fabric, flame retardant fabric is we all know that is put away from the fire, retardant, non-renewal of burning cloth, then flame-retardant cloth which features it?
    1 can use a variety of fabrics flame retardant treatment, flame retardant function and thus also closely related to physical and chemical properties of materials, although the use of different materials in the same fabric flame retardant, the flame retardant effect is also different and requires attention.
2 flame retardant does not mean burn, just extend the ignition time, such as the ignition point of the material reached after 20-30 seconds before the fire extended to fight off the ignition of clothing of the time, reduce the degree burns.
3 from the fire goes out, you need to look at the fire temperature and the air (oxygen), and in such a high-temperature environment, the length of time. Flame retardant effect exceeds its limit or could play a role in time, flame effect disappeared, no different from ordinary fabrics.
4 retardant, a flame retardant in a high temperature environment than design time or temperature, such performance is equally valid.
5 is not continued burning, need to look at the fire conditions and environment, if an adequate supply of oxygen to the fire, sweltering too high, continued burning the possibility still exists.
This is the civilian / commercial flame retardant conditions, special purpose such as: Fireman / Fire Equipment / Military equipment / Special Industrial equipped, etc., from the fabric material / Flammability class several levels higher than the civilian.
After a fire-retardant treatment of civilian fabrics, other functional fabrics with the same general. Questioning synthetic fabrics can also be used to achieve flame retardant treatment effect you? Answer pairs can be extended ignition time and increase fiber melting temperature (this is very important because the chemical adhesion with the skin after the fire, rescue quite troublesome, chemical fire risk than cellulose fibers high).

flame retardant fabric washing method

flame retardant fabric - retardant fabric, flame retardant fabric with washing instructions
1, the washing, the water temperature should be below 40 ℃, per kg of clothing and neutral soap or detergent without enzymes 1 g, bath ratio not greater than 1:40, the washing method using the light. 3, drying or dry naturally. 4, dry, ventilated, avoid mechanical or chemical damage. ? · Oil resistant and waterproof fabric with a washing instructions, washing, water temperature should be below 30 ℃, per kg of clothing plus a mild soap or detergent without enzymes 1 gram, bath ratio no greater than 1:40, washing method using light . 2, subject to the sun to dry after washing or dry naturally after 150 ℃ high temperature ironing 2 minutes, also available in 150 ℃ drying 4 minutes or more. 3, dry, ventilated, avoid mechanical or chemical damage.

What can be anti-static cloth

Several fabric with anti-static function application and fabrics features:

  A, anti-static cotton: cotton fabric in the middle of conductive fibers woven into (pitch 1.2CM) by special order made out process, to achieve anti-static function fabrics.

  B, using special polyester filament yarn, warp weft weaving conductive fiber inlay, made by a special process, not only have excellent anti-static function, can effectively prevent the fabric fiber shedding, as well as fine dust particles from the cracks in the fabric of infiltration out, and has not environmental impact (high temperature), chemical stability (resistance to washing) and other characteristics. Product specifications for the 68D × 75D cell for 10-100 cleanroom widely microelectronics, optoelectronics, precision instruments, aerospace and other static-sensitive and high cleanliness requirements of the industry.

  C, conductive silk, also called "conductive silk", using polyester as the main body, a dedicated high-performance polyester filament and permanent conductive fibers by a special process weaving, warp knitting or embedded warp and weft weaving conductive fiber inlay. Such fabrics with a special sewing craft clothing made with excellent anti-static dust-proof performance, high efficiency, permanent anti-static, dust-proof and soft, thin, smooth, textured clear characteristics, mainly for the production of dust clothing, anti-static clothing, to corona discharge or leakage discharge effect, different specifications of fabrics adapted to different anti-static electricity or clean environment Scope: Application of medical, pharmaceutical, food, precision instruments, aerospace and other more sensitive to static electricity and high cleanliness requirements of the industry.

  D, using the series of conductive fibers with special polyester filament warp knitting processing. antistatic fabric is not only able to eliminate static electricity and not dust, but also both ordinary knitted fabric breathable, warm, comfortable features, a new generation of ergonomic health requirements antistatic fabric. E In short slender polyester cotton yarn fabric conductive fibers woven into middle distance (spacing 1.2cm), was compiled by a special process, the fabric density is greater than the general fabric, with anti-static, anti-blasting capabilities. Such hardwearing fabric, soft and comfortable, moisture permeability, can be processed into a variety of high-grade anti-static cotton overalls, for storage and transportation, chemical, gas, oil, coal, marine, aerospace, military and other explosive working environment .

  E, anti-static Gabardine: Gabardine fabric in the middle of conductive fibers woven into (pitch 1.2CM) by special order made out process, to achieve anti-static function fabrics.

What is a permanent anti-static fabric

Forming an anti-static antistatic fabric technology has two kinds, one is a coating type antistatic agent, the antistatic coating composition which is usually by absorbing moisture from the air to achieve anti-static effect, the general effect is not lasting, time long decay due to various reasons!
Another component is to be added to the conductive filament inside, or spinning or weaving, when added to a permanent antistatic effect antistatic wire, so as to achieve permanent antistatic.
However, the second method, method of adding other antistatic yarn, yarn breakage due to static breakage problems resulting antistatic products, so the use of a fiber having a permanent anti-static effect yarns of the fabric should be truly create a permanent anti- static fabric

Anti-static overalls explain the main technical performance

First, antistatic fabric

Many varieties of anti-static fabric, summed up in roughly three types:

The first clothing fabric antistatic agent is optional resin finishing, impregnation, curing and synthetic fabric adhesion surface, the fabric has some antistatic effect. This method is now used only for civilian clothes, clothes overcome ridden, spark discharge, electrostatic dust pollution absorption phenomena.

The second is added internally, such as phosphate, sulfonate surfactants, or the third monomer polyester or nylon polymer antistatic agent to obtain durable antistatic fibers. Since most of the additive based on the circumstances can react or decompose the surfactant, so the fabric finishing or alkaline detergent to avoid affecting the antistatic effect hanged antistatic agent, suitable clean clothes, sterile clothes fibers can also be used in civilian clothes.

Third, in general mixed conductive fiber fabrics, such as anti-static fabrics from the environment, which is now widely accepted and recognized. This anti-static fabric antistatic properties of conductive fiber and conductive component types (metal, graphite, carbon black, etc.) in the fiber segments and is divided into a homogeneous conductive component, a conductive component of the cover, the conductive compound component and a conductive component mixing four. Which contains carbon black, graphite, and other conductive components of the conductive fiber composite yarn can be used directly in a certain distance (for example, about 1.5 cm) embedded in the conductive yarn weaving, warp, you can get a good anti-static effect, currently used anti-static fabric weaving best conductive fibers.

Second, the product categories

Can be divided into A and B grade clothes, according to the time difference antistatic property. One, A-level resistance to washing time should be 33.0 hours, B-class resistance to washing time should be 16.0ħ.

Third, anti-static overalls, the main technical performance

Anti-static overalls, must be in accordance with national standards, national mandatory standards GB12014-1989 "anti-static overalls." Antistatic overalls main technical requirements are anti-static properties that each anti-static clothing charge, this requirement is directly related to the protection of the product performance. In addition, the fracture strength of joints, hardware accessories, kimono lining the fracture strength of clothes to wear and anti-static effect of technical indicators.

Fourth, how to buy anti-static overalls

Figure 1 shows, the structure requires

(1) easy to wear, comfortable, easy to escape, is beneficial to human activity.

(2) Do not use metal garment accessories in general, must be used (buttons, zippers, etc.), you should ensure that when worn, not direct contact with metal accessories.

(3) All clothing should use an anti-static cloth, do not use lining. You must use the lining (pockets, reinforced cloth, etc.), the exposed area of ​​the lining of the total anti-static overalls inner surface area exposed to 20% or less, more than 20% (such as winter clothing or special clothing) should mask and removable lining.

2, the style requirements

"Three tight", Bottoms normal dress coat is straight or "three tight" jumpsuit.

Fifth, use and precautions

1, under normal circumstances, an explosive gas mixture continuous, frequent or long or short rest and the presence of explosive gas mixtures is possible to place combustibles minimum ignition energy of 0.25 mJ or less, should wear anti-static clothing .

2, in explosive areas prohibit anti-static overalls to wear off.

3, prohibits anti-static overalls attach or wear any metal objects.

4, wear anti-static clothing, you should also supporting the use of anti-static shoes, but it should be a conductive ground.

5, anti-static overalls should be kept clean and maintained antistatic properties, after use with a soft brush, a soft cloth moistened with neutral detergent, the material does not damage clothing fibers.

6, wearing a period of time to deal with anti-static clothing, you can test, if the static performance does not meet the standard requirements, you can prevent the use of static clothing.

Anti-static overalls Fabric Description

Anti-static overalls we all know, but anti-static fabric, what does? I believe most people are not very familiar with it.
1 conductive silk:
Anti-static cloth called clean rags, lint-free towel, using polyester as the main body, a dedicated high-performance polyester filament and permanent conductive fibers by a special process weaving, warp knitting or embedded warp and weft weaving conductive fibers embedded . Such fabrics with a special sewing craft clothing made with excellent anti-static dust-proof performance, high efficiency, permanent anti-static, dust-proof performance
(2) Anti-static clean fabric
Using special polyester filament yarn, warp weft weaving conductive fibers embedded through special processing, not only has excellent anti-static function, can effectively prevent the fabric fiber shedding, as well as fine dust particles leaking from cracks in the fabric and has not environmental impact (high temperature), chemical stability (resistance to washing) and other characteristics.
3 anti-static knitted fabrics:
Conductive fibers and the use of special polyester filament warp knitting processing. Antistatic knitted fabric is not only able to eliminate static and does not
4 anti-static dust-proof fabric:
In short slender polyester cotton yarn fabric conductive fibers woven into the middle distance with a special processing, the fabric density is greater than the general fabric, with anti-static, anti-blasting capabilities.
5 Antistatic gabardine:
In the middle of gabardine fabric conductive fibers woven into the warp special processing to achieve the antistatic fabric.
6 anti-static cotton:
In the middle of cotton fabric woven with a special conductive fiber processing, to achieve anti-static function fabrics.

Flame Retardant Fabric Fabric

Flame Retardant Fabric prospects
At present, research and development of flame retardant fabrics mainly in home textiles. The flame-retardant fiber textile fabrics showcase products mainly used in bed, bedspread fabric, curtain fabric, decorative tablecloths, blankets decorative fabric five categories. Flame retardant textiles mainly for export and domestic consumption is small. Fabric flame retardant fabrics currently taking very few applications.
Flame Retardant Fabric Status:
China's textile flame retardant technology research started late compared to other countries in Europe and America, in the 1950s from the study start retardant cotton fabric is not washable 1960s started to develop washable cotton flame retardant fabrics; 70's, with synthesis technology the development of flame retardant textiles expanded to blend dimension developed blended and synthetic fibers can be used as flame retardants; 1980s, China's textile flame retardant research into the faster, more comprehensive, more systematic development period, the development of many suitable for cotton and synthetic fabrics and flame retardant treatment technology