Hydrophilic hygroscopic and sweat-releasing polyester fiber and preparation method thereof

A moisture-wicking and polyester fiber technology, applied in the field of hydrophilic moisture-wicking polyester fiber and its preparation, can solve the problems of difficult breakthroughs in fiber moisture-wicking properties, limited addition ratio, burden, etc. Achieve excellent moisture absorption and perspiration performance, increase specific surface area, and improve heat insulation

Active Publication Date: 2013-09-25
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is widely used to achieve the moisture absorption and perspiration performance of polyester through the formation of micropores. The commonly used method of adding water-soluble polyester brings a lot of inconvenience and cost burden to polyester fabrics in the production and process objectively.
For example: the acidic dyeing environmen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After the hydrophilic modified polyester, water-soluble polyester and hydrophilic polyester masterbatch containing calcium carbonate powder are sliced ​​and dried, the raw materials are fed into the screw for blending and melting according to the mass percentage of 70:20:10, and measured After metering by the pump, it is fed into the spinning box (spinning temperature 305°C), extruded from a special-shaped spinneret with a three-lobed plate hole, blown and cooled, and then drawn (drawing temperature 90°C, draw ratio 3.0 times), Shaping (temperature 120° C.), winding (speed 5000 m / min) to produce hydrophilic trilobal polyester FDY filaments.

[0026] In the above-mentioned hydrophilic polyester masterbatch containing calcium carbonate powder, the weight percentage of calcium carbonate powder in the masterbatch is 20%.

[0027] The above-mentioned hydrophilic trilobal polyester FDY filament is subjected to strong acid dyeing, and the calcium carbonate powder in it is deco...

Embodiment 2

[0029] After the hydrophilic modified polyester, water-soluble polyester and hydrophilic polyester masterbatch containing calcium carbonate powder are sliced ​​and dried, the raw materials are fed into the screw for blending and melting according to the mass percentage of 92:5:3. After metering by the pump, it is fed into the spinning box (spinning temperature 295°C), extruded from a special-shaped spinneret with cross-shaped plate holes, cooled by blowing, and wound up (speed 1200m / min). The wound POY yarn is stretched and stretched (drawing temperature 170°C, draw ratio 1.6 times) to obtain hydrophilic cross-shaped polyester DTY filaments.

[0030] In the above-mentioned hydrophilic polyester masterbatch containing calcium carbonate powder, the weight percentage of calcium carbonate powder in the masterbatch is 50%.

[0031] The above-mentioned hydrophilic cross-shaped polyester DTY filament is subjected to strong acid dyeing treatment, and the calcium carbonate powder in it...

Embodiment 3

[0034] After the hydrophilic modified polyester, water-soluble polyester and hydrophilic polyester masterbatch containing calcium carbonate powder are sliced ​​and dried, the raw materials are input into the screw for blending and melting according to the mass percentage of 80:15:5, and measured After metering by the pump, it enters the spinning box (spinning temperature 270°C), extrudes from the special-shaped spinneret with I-shaped plate holes, blows and cools, winds (speed 1000m / min), falls into the barrel, and bundles the filaments in the barrel, and then After two-stage drafting: first-stage drafting (drawing temperature 80°C, draw ratio 3.5 times), second-stage drafting (drawing temperature 110°C, draw ratio 1.1 times), fiber crimping, and relaxation heat at 120°C Sizing treatment for 60 minutes, then sliced ​​and packed to obtain hydrophilic I-shaped polyester staple fiber with efficient moisture absorption and perspiration function.

[0035] In the above-mentioned hyd...

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Abstract

The invention discloses a hydrophilic hygroscopic and sweat-releasing polyester fiber and a preparation method of the hydrophilic hygroscopic and sweat-releasing polyester fiber. The method comprises the following steps of: slicing and respectively drying hydrophilic modification polyester, water-soluble polyester, and calcium carbonate powder-containing hydrophilic polyester master batch, mixing and melting according to certain mass percentage, extruding for spinning by a profile spinneret, and carrying out post-treatment to obtain polyester filament yarn or short fiber. Regardless of acid or alkali dyeing or processing environment, a great amount of micropores or grooves can be formed on the surface, better hydrophilic hygroscopic and sweat-releasing effects can be achieved, and the flexible and simple and convenient technique requirements can be reached; and the fiber can also obtain ultrahigh hygroscopic and sweat-releasing effects through superposition of dyeing or processing procedures. The profile hygroscopic and sweat-releasing fiber obtained by adopting the method is flexible in production technique no matter in pure or blended Dacron yarn weaved fabric, and achieves the changeability adjustability of the hygroscopic and sweat-releasing effects.

Description

technical field [0001] The invention belongs to the technical field of functional fiber manufacturing, and relates to a hydrophilic moisture-absorbing and sweat-wicking polyester fiber with excellent performance, simple process and adjustable functionality and a preparation method thereof. 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 transmissi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01F6/92D06M11/00D06M13/00D06M101/32
Inventor 赵茂成陈琳李彦张玉梅王华平
Owner SHANGHAI VITA SCI & TECH
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