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Water-absorbing fast-drying fiber, producing method thereof and method for producing textile fabric

A water-absorbing and quick-drying fiber technology, which is applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems of rising melt viscosity and affecting spinnability, etc., and achieve simple production process, good water-absorbing and quick-drying performance, ease of operation

Inactive Publication Date: 2011-03-23
TORAY FIBERS NANTONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the steric hindrance and polarity effect formed by the sulfonate group, the melt viscosity rises sharply, which affects the spinnability

Method used

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  • Water-absorbing fast-drying fiber, producing method thereof and method for producing textile fabric
  • Water-absorbing fast-drying fiber, producing method thereof and method for producing textile fabric
  • Water-absorbing fast-drying fiber, producing method thereof and method for producing textile fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 90wt% polyethylene terephthalate (PET) chips and 10wt% alkali-soluble polyester COPET are dried in a vacuum transfer dryer until the water content is below 50ppm, fed into the screw through the silo for melting, passed through the metering pump, Extruded by spinning assembly, the spinning temperature is 250, the spinning speed is 3000m / min, and the take-up tension is 0.02cN / dtex. Then false-twisting processing was carried out on the Murata-33J machine. The temperature of the first hot box was 200°C, the speed was 450m / min, and the elongation ratio was 1.50. The wicking height of the fabric made from the fiber is 50-90mm, and the water evaporation rate is 80-90%. Electron microscope photo (SEM observation) is done to the fabric surface, see figure 1 .

[0032] The above-mentioned alkali-soluble polyester COPET contains 20 wt % of copolymer polyethylene glycol and 3 mol % of 5-sodium sulfonate-ethylene isophthalate.

Embodiment 2

[0034] 90wt% polyethylene terephthalate (PET) chips and 10wt% alkali-soluble polyester COPET are dried in a vacuum transfer dryer until the water content is below 50ppm, fed into the screw through the silo for melting, passed through the metering pump, It is extruded from the spinning assembly, the spinning temperature is 280°C, the spinning speed is 2500, and the take-up tension is 0.15cN / dtex. Then false twist processing was carried out on the Murata-33J machine. The first hot box temperature was 170°C, the speed was 300m / min, and the extension ratio was 1.90.

[0035] This fiber is carried out fabric making, and fabric is in the NaOH solution that concentration is 1%, bath ratio is 150 and reduces weight for 35 minutes, and fabric reduction rate is 15%, has excellent water-absorbing performance after reducing weight, and its wicking height is 70~ 120mm, water evaporation rate: 90-95%. SEM observation of the fabric surface after alkali reduction, see figure 2 .

[0036] ...

Embodiment 3

[0038] Dry 90wt% cationic dye-dyeable polyester (CD) chips and 10wt% alkali-soluble polyester COPET in a vacuum transfer dryer until the water content is below 50ppm, and send them into the screw through the silo for melting, pass through the metering pump, and spin The components are extruded, the spinning temperature is 300°C, the spinning speed is 3500m / min, and the coiling tension is 0.1cN / dtex. Then false twist processing is carried out on the Murata-33J machine, the temperature of the first hot box is 150, the speed is 600m / min, and the elongation ratio is 1.70, 1.90.

[0039] This fiber is carried out fabric making, and fabric is 3% in concentration, and the NaOH solution that bath ratio is 200 reduces weight for 20 minutes, and fabric reduction rate is 5%, has excellent water absorption performance after reduction, and its wicking height is 70~ 120mm, water evaporation rate: 90-95%. SEM observation of the fabric surface after alkali reduction, see image 3 .

[0040...

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Abstract

The invention discloses a new hydrophile fast drying fiber and a method of production and knitting, the hydrophile fast drying fiber in alkali weight reduction treatment is produced by blend spinning 5-30wt% kali-soluble copolyester as pore-forming agent and 95-70wt% polymer-forming fiber. The invention has a good hydrophile fast drying performance, wherein the wicking height is 70-120 mm, and the evaporation rate of water is 85-95%.

Description

Technical field: [0001] The invention relates to a polyester fiber and a production method. Background technique: [0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing and non-clothing fields because of its excellent physical and chemical properties. Since the advent of polyester products, it has also been used by downstream users as the main textile raw material to weave various textiles due to its good drapability and high strength. However, due to its hydrophobic nature, its application in fields requiring high water absorption or hygroscopicity is limited. Although natural fibers such as pure cotton have good water absorption, their application range is restricted because of their high water retention rate and poor moisture conductivity. How to make a kind of fiber have the high comfort performance of water absorption and moisture conduction at the same time is the goal pursued by many fiber researchers and fiber manufacture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01D5/253
Inventor 曹海兵佐藤正幸
Owner TORAY FIBERS NANTONG CO LTD
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