Moisture absorbing and sweat releasing fiber and preparation method thereof

Abstract

The invention discloses a moisture absorbing and sweat releasing fiber and a preparation method thereof. The fiber is provided with a polygonal cross section, wherein each corner of a polygon is provided with a strip-shaped body and an expanded top end; a tubular cavity is formed between two adjacent included angles of the polygon in the longitudinal direction of the fiber. The preparation method comprises the following steps of by adopting a melt spinning method, performing spinning forming on a polyester melt at the spinning temperature of 280 to 290DEG C through a special-shaped spinneret plate arranged in a spinning manifold, wherein the spinning speed is 1,100 to 1,200m / min; then performing cooling, drafting, heat setting and drying at the temperature of 90 to 110DEG C to obtain the moisture absorbing and sweat releasing fiber. According to the fiber disclosed by the invention, the moisture absorption rate and the moisture exhaust rate are greatly improved; in addition, the surface smoothness of the fiber is high, and the hand feeling and the softness of the fiber are improved.

Description

Technical field [0001] The invention relates to the technical field of functional fibers, in particular to a special-shaped fiber with good moisture absorption and perspiration performance. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to the comfort performance of clothing. Among them, the moisture absorption and perspiration performance of clothing is an important indicator of comfort. Moisture-absorbing and sweat-wicking fiber refers to the use of the capillary phenomenon generated by the fine grooves on the surface of the fiber to make sweat quickly migrate to the surface of the fabric and diverge to achieve the purpose of moisture conduction and quick drying. People also use this Fibers are called breathable fibers. In recent years, the United States, South Korea, Japan, Taiwan, etc. have successively researched and introduced several moisture wicking fibers. They all increase the capillary action by defo...

AI Technical Summary

Problems solved by technology

However, compared with various natural fibers, there are still many shortcomings: hard hand feeling, poor hygroscopicity, easy to generate static electricity, difficult to dye, etc.

However, in the prior art, due to the limitations of the special-shaped design of the spinneret hole, the moisture absorption and perspiration function of the fiber cannot achieve the desired effect; "Type and "Y" type of spinneret holes (see attached figure 1 ), the opening of the fiber longitudinal micro-groove produced in this way is large, resulting in the unsatisfactory wicking ability of the micro-groove on the fiber longitudinal surface, and poor water absorption of the fiber

At the same time, because the cross-sectional shape of the fiber is a polygon with a "pointed leaf" shape, it is easy to appear hairs during the production process, and at the same time, the feel and softness of the fiber are greatly reduced.

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