New Idea Of Technological Innovation Simulation For Different Shrinkage Polyester Fiber

As a kind of fiber produced by spinning, stretching, twisting and other similar or non similar fibers, the development of the shrinkage shrinkage composite polyester fiber has greatly improved the simulation level of our fibers. The series products are evenly distributed and fixed length, so as to ensure the flatness and shrinkage of the fabrics produced by the downstream enterprises, and the semi-finished products of all the processes can be processed at the same time, so as to improve the efficiency, reduce energy consumption and save costs.

One step or two step method

At present, the different shrinkage composite polyester fiber mainly adopts one-step FDY/POY differential shrinkage compound.

The technology has the characteristics of less equipment investment, short process flow, low production cost, high speed production, stable product quality, arbitrary composition of components and performance.

POY+FDY one-step process of parallel machine spinning and high speed compound network with multi machine in one way has broken through key technologies such as complex point tension matching, precise control of different shrinkage and high-speed multiple networks. Special synchronous spinning, synchronous winding, double air chamber double channel side blown system and multi head precision high-speed winding head have been developed.

On this basis, the test and evaluation method of the differential shrinkage performance of the product was established for the first time, and the technical conditions of the optimal spinning, dyeing and finishing process of the one-step method were studied.

It reduces manpower, site and electricity consumption and water consumption, complies with the development trend of low carbon economy and accords with the industrial policy of the country.

Although one-step production of hetero shrinkage polyester fiber is the mainstream in the market, the products produced by the two step method have their own characteristics and advantages.

The speed of the flat jack is usually 700 to 900m/min. The network pressure of the different shrinkage composite wire can be adjusted according to the requirements of the customers to meet the requirements of different fabric weaving network. The drafting multiple and the qualitative temperature can also be adjusted to meet the requirements of different boiling water shrinkage of customers.

Whether it is one-step or two step production, the different shrinkage composite polyester fiber has excellent light shielding properties, excellent dyeing properties, high porosity and soft handle. At the same time, because of many silk rings on the surface of the fiber, it also eliminates the extreme light defects of chemical fiber fabrics.

After processing, you can make high-grade woolen fabric, spandex sweat cloth, high grade peach skin, jute linen, crystal linen, chiffon, water washed velvet, straight Gong, Prince Edward, etc., which is the ideal material for T-shirt and thermal underwear.

Clear pattern and broad prospects

As a new type of differential fiber, the development of the market has good prospects. At present, some well-known large-scale chemical fiber enterprises in China have set foot in this field.

On the one hand, enterprises can pform the existing new equipment to produce new shrinkage shrinkable composite fibers. On the other hand, they can cooperate with the domestic textile machinery manufacturers to develop special equipment for shrinkage shrinkable composite fibers to develop new shrinkage shrinkable composite fibers, and gradually form the industrial pattern of different shrinkage fibers, and be applied to more and more chemical fiber market, and gradually accepted by the market.

The first breakthrough of the application and development of the new type of shrinkage fiber is the improvement and improvement of the ordinary chemical fiber.

It is more convenient for production and processing.

It is expected that the chemical fiber can maintain its high strength and uniform characteristics and possess excellent properties of natural fibers.

Therefore, high elasticity, easy dyeing, hygroscopic, bulging, gloss improvement and so on become the goal of ordinary chemical fiber deformation and modification. Its future development and pattern are as follows: using high elastic shrinkage technology to manufacture high shrinkage yarn, making low shrinkage silk with stereotyped elongation technology, and making two super shrink shrinkable composite wires, mostly used for thin pile up and new simulation silk fabrics.

Development of three polyester fibers and polyester fibers.

Three because of its different fiber size, heteromorphic cross section, double shrinkage and fine filament size, it has been a good material for imitation silk, peach skin, imitation deer skin and wool like fabric. Its texture is soft, delicate, full and comfortable. It is the focus and direction of differential fiber development in mainland China.

Functionalization of double shrinkage heterogeneous composite wire.

Functional fibers are used as low shrinkage components. After boiling water treatment, they appear on the surface of fabrics, and are resistant to UV, flame retardancy, antibacterial and so on.

Double shrinkage and multi composite filament yarns.

It is mostly used for imitation of linen and imitation wool.

Crimp of low shrinkage component filament.

Although there are a lot of coils after the boiling water treatment of double shrinkage and different composite wires, the shape of coils can only be bent in the form of contraction and extrusion at both ends. The bending part is not curled. For example, PET/PTT composite wire, a crimp like fiber, can be used as a low shrinkage component to compounded the high shrinkage polyester filament blended into two threads, and the handle will be softer.