What Are The Special Functions Of New Filament Fabrics?

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The new functional fabrics have sprung up and sprung up.

In the development of new functional fabrics, the filament weaving industry has always been the champion.

Under a number of new terms, what is the mystery of filament fabrics? In this issue, we will make "exposure" to the common waterproof and moisture permeable fabrics, adjustable temperature fabrics, wire fabrics and bionic functional fabrics.

Special function waterproof and moisture permeable fabric

Waterproof and moisture permeable fabrics are widely used in filament fabrics.

On the other hand, it is also known as "breathable fabric". It is popular with outdoor sports because of its comfortable, breathable and waterproof function.

Waterproof and moisture permeable fabric is a kind of functional fabric that can not penetrate into the fabric under certain pressure, and the sweat pmitted by the human body can be pmitted through the fabric to the outside world without making people feel stuffy.

Water repellency refers to the impedance property of fabric when it passes through liquid water, such as snow, dew and frost.

The performance mainly depends on the external pressure, the size of fabric holes and so on.

Moisture absorption, which is the absorption, pmission and diffusion of sweat in fabrics, is mainly related to the absorption of water molecules by fibers and the passage or gap between fibers and fibers, yarn and yarn.

At present, the waterproof and moisture permeable fabric on the market is a porous film formed by stretching polytetrafluoroethylene resin as raw material.

The pore size of the film is 0.2~5 m, smaller than the diameter of the mist (20~100 m) and much larger than the diameter of the vapor molecule (0.003~0.004 m), which makes water vapor diffuse through these permanent physical microchannels, while water droplets can not pass through, and the PTFE film is water repellent, because such thin films have excellent waterproof and moisture permeability.

However, with the increase of the time taken, the waterproof and moisture permeable effect will gradually become worse, and even the phenomenon of fabric seepage will occur.

In order to solve this problem, the second generation of PTFE films and polyurethanes have been introduced. The polyurethane component has overcome the shortcomings of the first generation of products through the highly selective permeability of the water vapor molecules.

At present, most outdoor sportswear such as assault clothing, mountaineering clothes or winter clothes are used in the market, so that people wearing such clothing will play a waterproof role and will not make people feel oppressed during outdoor sports. They are excellent outdoor functional fabrics.

Special function two adjustable temperature fabric

The adjustable temperature fabric is a new kind of functional fabric in the market. It can achieve temperature adjustment through the thermal buffering effect of automatic heat storage or heat release.

This material is the preferred material for skiwear, sportswear, assault clothing and other products. It can also be made into bandages, boots, gloves, socks and hats, or bedspreads, bedspreads, blankets and other bedding.

In fact, when the temperature of the environment changes abrupt, it can maintain the temperature of the micro climate of the human body and clothing in a certain period of time, so as to reduce the heat stress of the human body and meet the needs of human comfort under extreme environmental conditions.

In other words, the fabric will automatically adjust the internal temperature of the fabric in a certain temperature range according to the change of the ambient temperature.

For example, when the external environment temperature rises, it can store excess heat, so that the internal temperature rise of the fabric is relatively reduced. When the ambient temperature drops, it can release energy, reduce the internal temperature of the fabric less, and make clothing more comfortable than traditional fabrics.

The key to realize the temperature regulation function of the adjustable temperature fabric is that the fabric is made of a material that can take phase change. People usually add this material to the fabric to achieve the adjustable temperature function.

When making adjustable temperature fabrics, most people start with the manufacture of thermoregulation fibers. For example, some people have studied the filling of phase change materials into hollow fibers such as rayon and polypropylene. The melting and crystallization of phase change hydrates at room temperature can be used to achieve endothermic and exothermic purposes, so as to make fibers that regulate temperature. Later, some people made phase change materials into capsules of near nanometer level, mixed in spinning solution, and directly fused to make fibers with phase change function.

The adjustable temperature fabric made by this method has better durability, and the disadvantage is that the cost of raw materials is higher, and the fabrics made are more expensive.

There are also some people who make tempered fabrics through the finishing method, which is to add phase change material polyethylene glycol (PEG) to the fabric by cross-linking, so that the fabric will have good heat storage and temperature regulation properties. Some people have also studied a certain amount of heat storage thermostat microcapsules and adhesives and so on to mix evenly.

The temperature adjustable fabric made by the finishing method is relatively close to the people, but the temperature regulation of the fabric is slightly worse. The fabric handle style will be affected and the air permeability will decrease.

Special function three metal wire fabric

Wire fabric is a kind of special functional fabric. The warp and weft yarns are made of chemical filament and metal wire.

The unique feature of wire fabrics is the use of metal filament weaving.

It is understood that at present, there are two kinds of metal fiber production in the market. One is made by stretching the metal with special processing technology. The whole component of the wire is metal. The other is made of polyester or nylon as the core fiber, and coated with a conductive film of silver, copper or nickel on the core fiber.

Usually, the wire fiber is added to the weft of the fabric, and the amount is usually about 5% of the total amount of the fabric.

Besides the electromagnetic wave radiation and antistatic properties, metal wire fabrics also have special luster, excellent stiffness and other properties, which provide abundant materials for product development.

As is known to all, metal wire fabrics are widely used in the field of industry because of their special electromagnetic radiation protection and anti-static properties.

For example, many wire fabrics are used to make electromagnetic shielding materials. Shielding wall covering is one of them. It can reduce radiation performance, protect human health, and has both aesthetic and functional properties.

At the same time, wire fabrics are also widely used in scientific research, military, electronics, fire fighting and even medical treatment.

At present, the latest radiation protection clothing for pregnant women in the market is made of wire fabric, which sells at a high price, and the quality of the anti radiation clothing is over 1000 yuan.

Due to the release of reproductive policy and special care for pregnant women in recent years, the sales of radiation protection clothing for pregnant women have been kept high in the market.

The clothing and decorative fabrics made of the unique luster of the wire fabrics are also distinctive.

For example, many models are made of metal fabric when they are displayed. Under the brilliant lighting, the light emitted from the metallic fabric is not comparable to that of ordinary fabrics, and can help the models shine brilliantly.

It is understood that many decorative umbrella fabrics are also made of wire fabrics, such as the director unit of China filament weaving Association, and many of the umbrella fabrics produced by Wujiang pin Xin Textile Technology Co., Ltd. are made of metal wire fabrics.

The fabric is overflowing with color and is popular among many people, selling well in the market.

Recently, a new type of metal wire with some characteristics of memory silk has appeared in the market, which is unique in the development and manufacture of memory fabrics.

For example, a newly developed memory fabric developed by Korea recently did not use the usual PTT memory silk, but added some newly developed metal wire. The fabric made of it has the metal like texture and gloss, but also has the memory property. It can achieve the characteristic of "standing up but not falling down, pushing it flat."

The fabric is currently used for making evening wear, high-end jacket and so on. It has a high price and a high demand for high-end clothing market.

Special function four bionic functional fabrics

Bionics is the imitation of nature, usually referring to the structure and working principle of life system.

The application of bionic principles to the design and development of fabrics is an innovation in fabric research and development, especially in the filament weaving industry.

Thanks to the strong plasticity of chemical fiber filament, more new elements can be added in the production process, so as to obtain new functional fabrics that meet consumer demand.

Bionic functional fabric is a kind of fabric with high technology content obtained by this principle.

At present, water repellent, antifouling and self cleaning multifunctional fabrics are developed based on the bionic principle of lotus leaf effect.

After bionic finishing, this kind of fabric is easy to roll down, easy to be washed away by water, and will not stain the surface. It does not need high temperature and too many detergents. It has the characteristics of water saving, energy saving and environmental protection. It is a kind of highly functional environmental protection.

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At present, many enterprises choose to use polyester super fine denier network yarn to weave this material. The network silk fiber is small in rigidity, soft and easy to bend, big in specific surface area, strong in capillary effect, and good in holding strength.

Hollow fibers are derived from animal fur.

When people studied the fur of animals in detail, it was found that there was a cavity in the hair of animals, which resembles the hollow tube, so the effect of keeping warm is very good.

Inspired by this, people began to try to make hollow fibers.

In recent years, the types of hollow polyester fibers have been increasing and their applications are expanding.

Such as hollow polyester FDY filament made of fabrics, mainly used in outdoor sportswear, casual wear and jacket production, has good thermal insulation, fluffy and soft, plus fiber shaped section, the fabric moisture absorption breathability is excellent.

Another type of antibacterial hollow polyester staple fiber is also a common wool like differential fiber.

The fabric made of this kind of fabric has good resilience, fluffiness and warmth retention. It also has antibacterial, deodorizing and other properties. It has certain health care effect on the human body.

The chameleon skin emergency system was born.

Based on the principle of bionics, a photochromic fiber which can automatically change color has been developed by relevant organizations. The fiber is very sensitive to light and humidity, and can change with the change of temperature and humidity in the environment.

This dyed fiber is dyed with special dyes, and it can change color with the change of the light and color of the surrounding environment. In addition, it can also show different colors with the increase of temperature.

Fashions made of color changing fabrics are loved by young people who are fashionable and individualized.

At the same time, it is widely used in military clothing. Soldiers wearing "discolored uniform" can play a good camouflage role in actual combat.

The application of bionic principles to the research and development of fabrics is an innovation in the development of fabrics. With the continuous development of science and technology, more advanced technologies will be applied to the textile industry in the future, and the textile industry will also stride forward to the textile power with more high-tech.