Advantages And Disadvantages Of China'S Garment Market

In people's consciousness, nonwovens are a kind of products with simple processing technology and low grade. The real technology of nonwovens used in clothing can be simple and complicated, and the products can be either high-grade or low-grade.

Generally speaking, the processing flow of garment accessories is relatively short and the process is simple. The process of garment fabric is long and the process is complex, especially for the finishing technology.

For example, nonwovens and fuzzing products are made of nonwoven needling and / or stitching technology, and then processed by needle punching or textile finishing.

China's development of nonwovens fabrics is still in its infancy. At present, it is limited to some special fields of disposable clothing, such as Spunlaced medical protective clothing, SMS medical protective clothing, etc. the development of ordinary civilian clothing fabrics is almost zero.

In fact, clothing nonwovens can be processed into products similar to traditional woven fabrics or knitted fabrics, and can also be combined with other processing technologies to produce fabrics with unique styles such as three-dimensional, traditional woven or knitting processes.

Its technical starting point can be high and low, the product style is unique, and the variety is flexible.

Spunlaced nonwovens spunlace method is also called jet jet net weaving and jet net spraying.

It is a late development of Nonwovens Technology, which uses the high pressure fine beam flow to act on (vertical direction) the net of the metal screen net, so that the fiber moves downward under the action of hydraulic clearance, so as to achieve entanglement between fibers (similar to needling), so as to strengthen the mesh.

The nonwovens produced by jet net spraying method are soft, bulky, hygroscopicity, and basically have no fiber chips. Some nonwovens produced by it can be used in synthetic leather, shirts and home decoration fields.

The wet spunlaced nonwovens do not lose their chips, and the tensile strength is two times that of dry spunlaced nonwovens, especially for clothing.

Spunlaced nonwovens are widely used in fiber materials, such as polyester, nylon, polypropylene, viscose fiber and so on.

The typical spun spunbonded nonwovens produced by Freudenberg, Germany, are Evolon. It is a fine denier filament made of composite spunbonded filament yarn, which is continuously impacted by a high pressure water needle, so that the filament is split into different fineness (0.05~2.5dtex).

Evolon spunbonded nonwoven fabric has excellent mechanical properties, high moisture permeability and breathability and soft handle.

After finishing the product, Evolon has good washing properties and excellent drapability as well as ordinary woven fabrics and knitted fabrics.

It is introduced that 70g/m2's Evolon nonwovens can be made T-shirts, and 150g/m2 can be made into sportswear.

A successful spunlaced nonwovens, developed by the University of Leeds, the international wool Bureau and BFF nonwovens company, has good resilience. It can withstand 30 thousand breaks without damage or breakage. It can conduct wet steam and water repellency, and can regulate heat. It can be used as an ideal sportswear fabric and is being developed for making trousers and jackets.

At present, the application of microfiber Spunlaced cloth on the top garment leather has a dominant trend. The garment leather made of it has good breathability, moisture permeability and drapability, soft handle, lighter leather, brighter and brighter color, and full and even fluff. It is beneficial to design and tailoring, and can be washed and mildew and moth eaten more than leather.

Needle punched nonwovens needling method uses external force to make the felt fabric interwoven into the felt fabric through the barb of the needle.

The feeding curtain of the needling machine is fed the fluffy net into the bedplate, and the needle plate with the needle is moved up and down, so that the needles with barbed needles are needled up and down on the fiber net.

Some fibers are moved by the barbed motion of the needles from the top of the net to the net or the bottom of the net, so that fibers can be interwoven and reinforced.

The fiber net after acupuncture is output by another pair of output rolls.

In addition to one-way acupuncture, webs can also be used to improve the surface quality of products.

In addition, fancy needling can be done to produce a specific fancy effect on the surface of the product.

In the process of acupuncture, the main factors affecting the quality of products are needle penetration depth, needle density, needle type and needle arrangement.

Needling method is mainly applied to the production of medium thickness nonwovens needle punched clothing nonwovens. Apart from its unique style, its processing cost is far lower than that of traditional woven and knitted products.

For example, imitation plain suede fabric, fabric felt elastic fabric and needled wool and fleece products, the processing cost is only 1/3 of the traditional textile or knitted products.

Needle punched nonwovens can be used for surface modification of high-grade leather base cloth, so as to achieve fine surface without needle marks and increase strength.

The weave knitted nonwoven weave knitted nonwoven fabric is a reinforcing method of fiber mesh. It is a nonwovens made of mechanical warp knitted coil structure and mechanical reinforcement.

It is made up of stitched yarns (or fiber bundles in the hook net), which are strengthened by looping mechanisms, such as mesh, yarn layer or non-woven material layer, such as foam plastics, film and so on.

In addition, it can also incorporate coil structures into base cloth (woven or stitched nonwovens) to make Terry effect and become Terry type nonwovens.

Stitched woven nonwovens are similar to traditional textiles in appearance and feel. Many stitched product sheets are difficult to distinguish from woven or knitted fabrics from appearance. Unlike other nonwoven fabrics, they have a typical mesh structure.

It can be used to make western style clothes, jackets, coats, fur coats, etc.

Chemical bonded nonwovens chemical bonding reinforcement is the most widely used and widely used mesh reinforcement method in nonwoven production. However, the proportion of this method has been decreasing in recent years.

Chemical bonding is a method that uses a variety of methods to evenly distribute the binder in emulsion or solution form in the mesh, and solidify the fiber to reinforce the mesh.

Chemical bonding method can be divided into impregnation, foam impregnation, spray adhesion, printing adhesion and solvent bonding.

The impregnation bonding method is to achieve the saturated impregnation of the mesh through the adhesive grooves, then squeeze the excess adhesive through a pair of rolls, and then make the saturated impregnated nonwovens by drying and baking.

The nonwoven fabric produced by this method is hard to handle, so it is only suitable for making some garment linings.

Foam impregnation is a method of impregnating and bonding nonwovens with foam adhesives.

This method is one of the important methods for producing thin and medium thickness nonwovens.

The spray adhesive method is to use compressed air to spray the adhesive onto the fiber web through the spray gun.

It is mainly suitable for producing high porosity and porous nonwovens.

For example, sprayed cotton, filter material, etc.

The heat bonded non-woven fabric is heat bonded to strengthen the mesh of the main fiber mixed with hot-melt fiber, hot melt powder or hot-melt film to melt the hot-melt material in the mesh, so that the contacts between the fibers are melted and bonded, and then fixed after cooling, so that the mesh is reinforced.

It includes hot melt bonding and hot rolling bonding.

The technology of hot melt bonding is simple. It mainly uses heating room to heat the mesh, and it can also be reinforced by pressing roller after heating.

The hot rolling bonding method is to use uniform heating roller to heat and pressurize the fibrous net mixed with hot-melt fiber, melt the hot melt fiber in the rolling area and reinforce the cloth with the main fiber at the contact point.

The method can also be used for bonded and calendering of reinforced nonwoven fabrics.

In addition, thermal bonding reinforcement can also be used as an auxiliary reinforcement after mechanical reinforcement.

At present, the development of the law is on the rise.

The spunbonded nonwovens spunbonded nonwovens are a kind of nonwoven production technology which is directly extruded by polymer chips, melt, spinning, drafting, spreading and consolidating.

Its production process is short and the production efficiency is high. Adopting large-scale production has the advantage of cost.

The spunbonded nonwovens consist of high strength continuous filament, and no dust fall off, making personal protective articles widely used in the electronic and biochemical industries to prevent the hair and dandruff of the wearer from falling into the clean workshop.

In developed countries, about 50g/m2 spunbonded nonwovens are made into one-off work clothes for machinery manufacturing, automobile repair, spray painting, construction, housing decoration and other industries.

The spunbonded nonwovens can be used as beds in medical and health fields to avoid infection and cross infection. They can also be used as protective clothing, disinfection and isolation clothing, medical bandages and masks.

If special additives are added to the spunbonded nonwovens production process or after finishing, the products will have the functions of flame-retardant, antistatic, radiation protection, hydrophobic, moisture conducting, antibacterial and thermal insulation. It can effectively prevent harmful substances and dust from damaging human health.

The development direction of spunbonded nonwovens is two-component and ultra fine spinning.

The bicomponent core spunbond fabric is mainly used for women's sanitary napkins, baby diapers and adult diapers. It is characterized by high strength, soft handle and easy processing. It is an ideal material. The split type two-component ultra fine spinning adhesive has soft handle, strong strength, strong absorption ability, and no fiber loss. It is a high quality material for making artificial leather base cloth, and is also an ideal material for making advanced cleaning cloth and high quality filter material. The island type super fine spinning adhesive is mainly used for making high-grade leather base cloth, advanced cloth and other advanced textiles, and the market price is very high, for example, the ultra-fine leather fabric can reach 60 thousand ~8 yuan / ton.

It has become a very obvious trend in the development of Nonwovens Technology.

Because of the combination of various processes, which can make up for the shortage of single technology, many new and colorful nonwoven products have been created.

In the last 10 years of twentieth Century, the SMS (spunbonded melt blown spunbonded) composite product (also known as "sandwich" structure) appeared in the nonwovens industry. At present, SMS products have been widely used in medical and health, disposable sanitary products (disposable), filtration and other fields.

The tendency of this composite development is further developed to the combination of spunbonded and pulp air distribution, melt blown and pulping airflow network, carding, mesh forming, spunbond, carding, mesh forming and melt blowing.

At the same time, there are many intersections between nonwovens, such as spunlace consolidation, which is mainly combined with carding, and now it can also be used in other net forming methods, such as spinning and mesh forming.

Spunbonded melt blown spunbond (SMS), carding, net spinning, web forming, web forming (CSC), carding, netting, melt blown and carding (CMC), spunlacing combined with spun airflow, spunbonding and wood fiber composite have emerged.

The nonwovens protective clothing used for SARS prevention and treatment in 2003 is a kind of composite nonwovens.

It uses special technology to combine non-woven products with different functions and become a brand new product with multiple advantages.

The development of nonwovens will enter a period of development with superfine, two-component fibers, combined application technology and high new equipment. Therefore, new nonwovens of clothing will be developed continuously, which is worth looking forward to in the clothing industry.