A moisture-absorbing and heating fabric based on functional polyester and its preparation process

Abstract

The invention relates to the field of textile fabrics, in particular to a moisture-absorbing and heat-generating fabric based on functional polyester and its preparation process, which is characterized in that it includes a surface fabric and an inner fabric, and the surface warp yarn of the surface fabric is radial special-shaped fiber / polyester fiber The warp and weft yarns of the surface fabric are pure spun yarns of radiating special-shaped fibers; the inner warp yarns of the inner fabric are blended yarns of sheath-core radiation fiber / polypropylene fiber, and the surface warp and weft yarns of the surface fabric are Pure spinning of sheath-core radiation fiber; the moisture-absorbing and heat-generating fabric based on functional polyester provided by the invention utilizes the high water absorption of the inner fabric and the high moisture drainage of the surface fabric, and has a moisture drainage gradient from the inside to the outside, combined with far-infrared ceramics The heat generation effect of powder blended polyester accelerates the moisture discharge speed; it is suitable for use in autumn and winter, and has good self-heating, heat preservation and moisture absorption and moisture permeability properties when not exercising, and can accelerate perspiration under the action of far-infrared fibers when exercising speed, increase metabolism.

Description

technical field [0001] The invention relates to the field of textile fabrics, in particular to a moisture-absorbing and heat-generating fabric based on functional polyester and a preparation process thereof. Background technique [0002] Moisture-absorbing and moisture-permeable fibers, also known as highly water-absorbing and hygroscopic fibers, generally refer to hydrophobic synthetic fibers that can retain more than 15% of water after being immersed in water and centrifugally dehydrated under certain conditions after being physically deformed and chemically modified. The fiber becomes a super absorbent fiber; under standard temperature and humidity conditions, it can absorb moisture in the gaseous phase, and the fiber with a moisture regain of more than 6% is called a high hygroscopic fiber. Sweat and sweat vapor from the body should be able to diffuse quickly through the clothing to keep the skin dry and comfortable. Among the discharged sweat, a small part is directly ...

AI Technical Summary

Problems solved by technology

Traditional fibers have good hygroscopicity and water absorption performance, while synthetic fibers have poor water absorption due to the lack of hydrophilic groups in their polymer molecules. When the human body sweats a lot, because of the moisture absorption speed, water diffusion speed and evaporation The speed is not ideal, which weakens the comfort of human body wearing. Traditional methods to improve the water absorption and hygroscopicity of synthetic fibers include methods such as copolymerization with hydrophilic units and microporous fibers, which can improve the breathability of synthetic fiber fabrics to a certain extent. But there are still some deficiencies: due to the improvement of porosity, the thermal insulation performance decreases while the air permeability is improved; the existing improvement of air permeability is only for the transformation of single-layer fabrics. In terms of function, due to the increase in thickness and structure, the fabric structure lacks a moisture diffusion gradient, resulting in a decrease in breathable, moisture-permeable and drainage performance; how to develop a new type of fabric, so that the fabric can have both perspiration and heat preservation performance when not exercising. It can promote perspiration, increase metabolism and quickly eliminate sweat during exercise, and has good practical demand and market prospects

Images