Moisture absorption and perspiration fiber with hydrophilic function

A moisture-absorbing and sweat-wicking fiber and fiber technology, which is applied in fiber processing, conjugated synthetic polymer artificial filament, filament/thread forming, etc., can solve the problems of clogging wicking grooves and affecting the moisture-conducting effect, etc. Good compressibility, improved moisture absorption and perspiration efficiency, and good hand feeling

Inactive Publication Date: 2011-03-02
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A certain moisture absorption and perspiration effect can be achieved by the existing cross-section or surface roughening of polyester fibers, or by adding hydrophilic polyester components to conventional polyesters and then blending and spinning, but there are still problems in practical applications. Certain technical deficiencies, such as cross or trilobal short fibers are very easy to overlap with other fibers in blending, blocking the wicking groove and affecting the moisture-conducting effect; in addition, the existing technology usually only uses physical modification of cross-section special-shaped Or the chemical modification method of introducing hydrophilic groups, without effectively combining the two methods to obtain functional improvement

Method used

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  • Moisture absorption and perspiration fiber with hydrophilic function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The conventional polyester A with a mass ratio of 65%, 20% hydrophilic modified polyester B and 15% water-soluble polyester C are sliced ​​and dried, and then melted by metering and screw blending, and then input into the spinning box (The spinning temperature is 300°C), extruded from the special-shaped spinneret with I-shaped plate holes, cooled by blowing, drawn (drawing temperature 90°C, drafting multiple 2.8 times), finalized (temperature 120°C) coil Tube (speed 4500m / min), obtains hydrophilic I-shape polyester FDY filament.

Embodiment 2

[0020] The conventional polyester A with a mass ratio of 90%, 5% hydrophilic modified polyester B and 5% water-soluble polyester C are sliced ​​and dried, and then melted by metering and screw blending, and then input into the spinning box (The spinning temperature is 295°C), extruded from a special-shaped spinneret with a mountain-shaped plate hole, blown, cooled, and wound (at a speed of 900m / min). The winding yarn (POY) is stretched and stretched (drawing temperature 120°C, drafting ratio 3.7 times) to obtain hydrophilic chevron-shaped polyester DTY filaments.

Embodiment 3

[0022] The conventional polyester A with a mass ratio of 75%, 15% hydrophilic modified polyester B and 10% water-soluble polyester C are sliced ​​and dried, and then melted by metering and screw blending, and then input into the spinning box (The spinning temperature is 286°C), extruded from the special-shaped spinneret with cross-shaped plate holes, winded, cooled, and then wound (winding speed is 1000m / min), falling into the barrel, the falling filaments are bundled, and then passed through two Primary drafting: primary drafting (drawing temperature 88°C, drafting multiple 4 times), secondary drafting (drawing temperature 100°C, drafting multiple 1.1 times), fiber crimping, relaxation heat setting treatment at 150°C 60min, then cut off and packaged to obtain hydrophilic cross-shaped polyester staple fiber.

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Abstract

The invention relates to a moisture absorption and perspiration fiber with a hydrophilic function, comprising filaments and chopped fibers. The preparation process comprises the following steps: modifying conventional polyester to obtain hydrophilic modified polyester; mixing the conventional polyester, the hydrophilic modified polyester and water soluble polyester according to a certain proportion for carrying out composite spinning; extruding the mixture by a profile spinneret and carrying out postprocessing process for spinning to obtain the hydrophilic moisture absorption and perspiration polyester filaments or chopped fibers. Alkaline solution treatment is carried out on fabrics made from the fiber provided by the invention to form multiple micropores and trenches in the surfaces of the fabrics, so that the fabrics are dry and comfortable with water absorption and perspiration and ventilation properties, thus the fabrics can be manufactured into sportswear and underwear. In the invention, structural design and chemical modification of the fiber are combined, so that the moisture absorption and perspiration property is greatly enhanced; and in addition, as the fiber is free from influence of blend fiber or the manufacturing process, the applicability is wide.

Description

technical field [0001] The invention relates to a fiber with moisture-absorbing and perspiration-releasing functions, in particular to a method for preparing a high-efficiency moisture-absorbing and perspiration-releasing polyester fiber with hydrophilic properties. Background technique [0002] The consumption of polyester fiber in clothing is the largest among all kinds of synthetic fibers, but its hygroscopicity is the worst. Under the condition of 20°C and relative humidity of 65%, the equilibrium moisture absorption rate of polyester fiber is only 0.4%, ordinary polyester clothes often make people feel stuffy when worn, so research on the moisture absorption and perspiration function of polyester emerges in an endless stream. Moisture-absorbing and sweat-wicking fibers use the capillary phenomenon produced by the fine grooves on the fiber surface to make sweat quickly migrate to the surface of the fabric through wicking, diffusion, and transmission, and then disperse, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/253D01D5/30D01F8/14D06M11/38D06M101/32
Inventor 赵茂成陈琳
Owner SHANGHAI VITA SCI & TECH
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