Application Of Special-Shaped Fine Denier Polyester Fiber In Sports Brand Products

　　 Irregular fine denier polyester fiber Introduction to sports brand products

As one of the ten major fiber varieties of China's fiber trend, the name of the special type fine denier moisture absorption and sweat perspiration fiber is still unknown to many people. But it is such a new type of fiber, depending on its heteromorphic cross section, the use of many micro pores or grooves on the surface, combined with fine denier, so that the fiber can quickly absorb moisture and sweat from the skin surface, through diffusion to the outer layer of evaporation, can achieve the effect of moisture absorption and sweat. Combined with anti ultraviolet, antibacterial and other multi-functional composite, to further improve the function of fiber, special-shaped fine denier moisture absorption and sweat perspiration polyester fiber has become a kind of fiber favored by sports brand buyers.

Special section brings comfort effect.

The functional principle of special-shaped fine denier moisture absorption and sweat perspiration polyester fiber is mainly derived from its variant fiber cross-section. The highly profiled fiber section structure and the fluffy yarn structure increase the "capillary tube" function of yarn. The capillary channels on fabric fibers or fibers can absorb, transport, diffuse and volatilize moisture quickly, so as to keep the skin dry. The fine fibers formed on the surface of fine denier textile fibers form numerous tiny bump structures, which are equivalent to numerous capillary channels. Therefore, the absorption effect of fabrics is obviously increased, which can play the role of transferring water molecules and greatly improve the breathability and sweat perspiration of fabrics. Compared with conventional hygroscopic and perspirating fibers, fine denier fibers have large fineness, large surface area, and unusual groove structure, which can greatly improve the moisture absorption and moisture dissipation of polyester fibers and improve their comfort.

In terms of preparation, the polymer manufacturing stage of the special fine denier moisture absorption and sweat perspiration fiber is the foundation for the manufacture of high moisture absorption and sweat fiber fabrics when polymer is polymerized. In the fiber manufacturing stage, the spinning of the hydrophilic polymer is used to change the shape of the spinneret hole to prepare the profiled fibers, and the longitudinal grooves are formed in the profiled fibers, combined with the preparation technology of the superfine fibers, further providing the functions of moisture absorption and sweat transmission of the fibers. From the current moisture absorption and perspiration fiber, it is mainly used to spin "ten", "Y" and "U" shaped fibers. In the yarn and fabric manufacturing stage, it is blended with yarns with excellent water absorbency to form yarns or a two-layer structure yarn consisting of hydrophilic fibers and hydrophobic fibers. The inner layer is composed of hydrophobic and moisture conductive fibers, and the outer layer is composed of sweat absorption, sweat, sweat and dry fibers.

Through the process of polymer polymerization, spinning, yarn and fabric weaving, integration and other processing, the special-shaped fine dendrity moisture absorption and sweating fiber has integrated the cotton comfortability and the fast drying property of polyester, conducting moisture fast drying, dry and breathable. Moreover, the high profile section structure reduces the volume and weight of the polyester fabric by 25%, which is light and comfortable. It is a good material for making tights and sportswear.

Breakthrough in product fineness

The main technical bottleneck of the development of special-shaped fine denier moisture absorption and sweating polyester fibers in our country is still the problem of fiber forming theory and specialized machining accuracy of spinneret. Among them, the design of high precision heterogeneous perforated spinneret needs the support of the theory of spinning fluid mechanics, and the processing of the perforated spinneret with special-shaped cross section requires the processing technology of high precision spinneret. These are the theories and techniques that China's chemical fiber industry technicians need to improve gradually in the future. There is still a certain gap between China and foreign countries in the technical level of the special-shaped fine denier moisture absorption and sweat perspiration polyester fiber, mainly manifested in: the fiber surface area is not big, the cross section shape is single, the function of moisture absorption and perspiration is only crisscross, the Y shape section develops more, and the foreign has developed to the flat section.

But this gap is shrinking. According to reports, in March 2003, a company started increasing polyester fiber in Suzhou. Function of moisture absorption and perspiration There are still some technical obstacles in spinning production. Fiber can not be fine denier. The price of products is much higher than that of ordinary products. The promotion and promotion of moisture and sweat products are limited. Now, in the production process, due to the breakthrough of ring blowing technology, fine denier and super fine denier fibers have been industrialized. In addition, the current special-shaped fine denier moisture absorption and sweat perspiration polyester fibers also have some other functions, such as adding nano powders through hetero section combination, improving fiber added value by means of component control and fiber structure control. These products have better market efficiency.

Fine denier moisture absorption and sweat perspiration polyester fibers also have their own shortcomings which are hard to overcome. Fine denier fibers have a certain amount of reflected light on each surface. Therefore, the finer the fiber is, the more difficult it is to dye it darker and the easier it is to dye it unevenly. Compared with conventional polyester fibers, the light fastness of fine denier fibers is lower than that of 1~2 grade. The smaller the fiber, the larger the surface area, the more the light fastness decreases.

Notable achievements in Industrial Development

According to the experts' forecast, the leisure wear will lead the sports leisure market to 30% growth rate. Therefore, the future development potential of the special fine denier moisture absorption and sweat perspiration polyester fiber in sportswear and casual wear is unlimited. A group of chemical fiber enterprises in China are committed to the development and industrialization of this kind of fiber, and have achieved good results.

Among them, some enterprises have achieved remarkable results in the development of fiber cross-section morphology. They have developed three kinds of moisture absorption and sweat perspiration polyester fibers, including "three leaf" shape, "five leaf" shape, "ten" shape, "W" shape, and compound special-shaped. The advantages of the company's ring blowing technology and the design of a new professional fine porous spinneret have been applied to successfully develop various types of fine denier moisture absorption and sweat perspiration polyester fibers. At present, it produces more than 20 thousand tons of various types of fine denier moisture absorption and sweat perspiration polyester fiber, and has formed a well-known brand in the enterprise.

In terms of fiber fineness, the development of another company has attracted much attention. The project "key technology development of high quality melt direct spinning super fine polyester filament" has been awarded the two prize of national science and technology progress. After many years of research, the fineness of monofilament is 0.3 times, equivalent to 1/20 of a hair.

A thermostat filament developed by a company has endowed the special-shaped fine denier moisture absorption and sweating polyester fibers with functions such as antibacterial, UV resistant and cool.

Faced with the increasing pressure of industrial upgrading, chemical fiber enterprises have placed high technology content and high value-added products in the very important position of R & D and promotion. Special fine denier moisture absorption and sweat fiber will be the focus of future differential fiber development. As a major variety of high comfort fiber, it is expected that the global output of the special fine denier moisture absorption sweating polyester fiber will gradually reach or exceed 2 million tons. At present, the special-shaped fine denier moisture absorption and sweat fiber has been widely co operated with well-known enterprises such as Buick, Honda and Lining, and has achieved good results. The special type fine denier moisture absorption and sweat perspiration polyester fiber has established a long-term use agreement with famous brands such as Nike, Adidas, Lining and other famous brands at home and abroad, and will gradually increase this category in the future. product development And the promotion of this new fiber will play a greater role.