Anti-static fabric characteristics analysis

Anti-static fabrics are made of anti-static fiber blends. Its conductive performance can reach the requirements of Japan's "Electrostatic Safety Guidelines". The fabric has strong durability and can be widely used by workers in the flammable and explosive gas, dust, petroleum, chemical, pharmaceutical, and electronics industries.

Textile materials, especially those with low hygroscopicity, such as polyester, acrylic, and Kevlar, have high specific resistance. Therefore, during the textile processing, due to the close contact and friction between the fibers and the fibers or the fibers and the resulting static electricity, the hairiness of the slivers, the increase of the yarn hairiness, the defective package formation, the fiber-adhering components, and the yarn breakage Increased heads and the formation of dispersive shadows on the cloth.

After the clothes are charged, a large amount of dust is adsorbed on the clothes and it is easy to stain. Moreover, clothing and the human body, clothing and clothing can also be accompanied by phenomena or sparks. Therefore, electrostatic interference affects the smooth progress of processing, and affects the quality of the product and the performance of the fabric. When the electrostatic phenomenon is serious, the static voltage is as high as several kilovolts. Sparks may be generated by the discharge, causing fire and serious consequences. Anti-static fabrics are made of anti-static fabrics. Anti-static fabrics have an average surface area of ​​≤ 7.0 μc/m2 after being washed 100 times in a temperature of 20±5°C and a humidity of 30 to 40%. Anti-static fabric dyeing requirements are light mercerized, not brushed. Oxygen bleach should try to control 80% of the dose.

Anti-static fabrics are usually processed in several ways:

First, the fabric is treated with an antistatic finish;
Second, fiber graft modification, hydrophilic fiber blending and interweaving for the purpose of improving fabric moisture absorption;
Third, blended or inlaid conductive fibers; the mechanism of the first two methods are to improve the moisture regain of the fabric, reduce the insulation, and accelerate the electrostatic leakage. Therefore, if the processing effect is not durable or insignificant in a dry environment or after multiple washings, it is usually applied to ordinary clothing fabrics.

Only the third method can solve the electrostatic problem of textiles in a lasting and efficient manner, so it is widely used in the production of anti-static work clothes. The fabric is finished with an antistatic finish. The types of anti-static fabrics include: anti-static silk (conductive silk) and anti-static ultra-clean fabrics, anti-static tc fabrics, anti-static tr fabrics, anti-static cvc fabrics, anti-static cotton fabrics.

It is worth mentioning that organic conductive fibers play an effective role in static elimination of anti-static overalls fabrics and ordinary civilian textiles, but compared with conventional textiles, electrostatic properties testing of textiles containing conductive fibers is correct and important. The method deteriorated significantly. Choosing a reasonable test method and correctly evaluating the electrostatic properties of fabrics containing conductive fibers is a fundamental work necessary to thoroughly study the processing technology of organic conductive fibers, the production process of textiles containing conductive fibers, and the rational application of such textiles. We analyze the adaptability of China's current relevant test method standards for the testing of antistatic performance of fabrics containing conductive fibers.

The clothing made of anti-static fabrics mostly uses stainless steel fibers, sub-conductive fibers, anti-static synthetic fibers and polyester/cotton blended or mixed weaving fabrics. It can automatically corona discharge or leak discharge, eliminating clothes and human body, and also providing anti-static electricity. Hats, socks, shoes. Among them, anti-static overalls can prevent electrostatic accumulation of clothes, and work clothes made of anti-static fabrics for sewing fabrics. Antistatic fabrics, on the other hand, can prevent static electricity from accumulating in the fabric. In the case of textiles, fabrics of electrically conductive fibers are roughly spaced or evenly mixed.

Other special clothing fabrics knowledge development

One. Anti-acid and alkali fabrics:

The protective clothing made of this fabric is suitable for wearing by operators who are exposed to acid and alkali for a long time. It has good acid resistance, long time of acid penetration, high acid pressure resistance, and low acid pick-up resistance. It has good protection function for employees. Widely used in the chemical industry to produce protective clothing.

II. Fire retardant fabrics:

“Praban is a durable finishing flame retardant for cotton fibers. British “Propylene” flame retardant finishing technology is currently the international advanced flame retardant technology. The fabric can not only effectively prevent the spread of flame, but also protect the original performance of the fabric.The protective clothing made of the fabric has good detergency, no odor, is safe to wear, comfortable and reliable, and can be widely used in metallurgy, fire protection, Machinery, forestry, shipbuilding, electrical welding and other industries produce protective clothing.

Three. Oil-resistant and water-repellent fabrics:

The uniforms made of this fabric are suitable for wearing by workers who are often exposed to oil and water medium, and have the advantages of oil-impregnated, water-in-permeable, breathable and moisture-permeable properties, and are widely used in the petroleum industry, machinery manufacturing and maintenance industries. , sanitation systems, food processing and other industries.

4. Easy decontamination fabrics:

The most important feature of the easily decontaminated fabric is to prevent it from being contaminated by oil in the process of use. Once it is contaminated, it is easy to decontaminate under normal conditions and it is easy to wash. Therefore, the fabrics that are easily decontaminated are very suitable for the production of uniforms that are frequently exposed to the working environment of mineral oil and animal and vegetable oils.

V. UV protection fabric:

Adapt to the industry: construction workers, all outdoor workers.

Ultraviolet rays in the solar spectrum not only cause textiles to fade and embrittle, but also can cause sunburn, aging, and melanin and pigmentation. More severely, it can induce cancer and endanger human health. The harm of ultraviolet radiation to the human body has increasingly attracted the attention of countries in the world. Australia and other countries have made it clear that students’ clothing and the like have sun protection functions, and China has also formulated anti-UV standards for textiles. The protective principle of the UV protection fabric is that it absorbs high-energy ultraviolet rays, transforms them into low energy through the jump of molecular energy level, and turns into low-energy thermal energy or shorter-wavelength electromagnetic waves, thereby reducing the sun-strength and eliminating ultraviolet rays on the human body. And fabric hazards.

The UV protection fabrics mainly contain high-efficiency UV absorbing materials. The products are non-toxic, non-explosive, safe to the human body, have no irritation or allergic reaction to the skin, and do not affect the color, strength and moisture permeability of the fabric. The UV protection fabrics include cotton and hemp , Silk, wool, polyester-cotton and nylon fabrics, the fabric has good absorption, conversion, reflection and scattering effects on the 180-400nm wavelength ultraviolet (especially UV-A and UV-B).

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