2013年10月24日星期四

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 .

2013年10月23日星期三

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 .

2013年10月16日星期三

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.

2013年10月11日星期五

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 .