Polyester false twist processing fiber, production method thereof and textile made of same

A fiber and false twisting technology, which is applied to polyester false twisted processed fibers and in the field of light-weight textiles, to achieve the effects of obvious pitch, good crimp performance, and increased cross-sectional void ratio

Active Publication Date: 2016-06-22
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is only limited to the design of the spinneret and the introduction of the fully drawn yarn, and does not involve the false twisted yarn

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0079] Swastika-type spinneret is used for spinning, the cooling distance is 65mm, cooled by side blowing, the wind temperature is 20°C, the wind speed is 20m / min, the set winding speed is 3200m / min, the temperature of the first hot roller is 90°C, and the second The temperature of the hot rolls was 145° C., and the elongation ratio between the two hot rolls was 1.36. The fineness is controlled to 80dtex / 48F, and the 4-leaf wind type fully oriented yarn FOY is obtained.

[0080] False-twist the wound stretched yarn FOY, using low-temperature false-twisting, setting the temperature of the first hot box of the false twister to 100°C, the temperature of the second hot box to room temperature, the ratio of 1.075, and the processing speed of 500m / min to obtain a denier of 72dtex / 48F 4-blade type false twist proce...

Embodiment 2

[0082] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0083] Swastika-type spinneret is used for spinning, the cooling distance is 65mm, cooled by side blowing, the wind temperature is 20°C, the wind speed is 20m / min, the set winding speed is 3200m / min, the temperature of the first hot roller is 90°C, and the second The temperature of the hot rolls was 145° C., and the elongation ratio between the two hot rolls was 1.36. The fineness is controlled to 80dtex / 48F, and the 4-leaf wind type fully oriented yarn FOY is obtained.

[0084] False-twisting the wound stretched yarn FOY, using medium-temperature false-twisting, setting the temperature of the first hot box of the false twister to 140°C, the temperature of the second hot box to room temperature, the ratio of 1.075, and the processing speed of 500m / min to obtain a denier of 72dtex / 48F 4-leaf wind type false t...

Embodiment 3

[0086] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0087] Swastika-type spinneret is used for spinning, the cooling distance is 65mm, cooled by side blowing, the wind temperature is 20°C, the wind speed is 20m / min, the set winding speed is 3200m / min, the temperature of the first hot roller is 90°C, and the second The temperature of the hot rolls was 145° C., and the elongation ratio between the two hot rolls was 1.36. The fineness is controlled to 80dtex / 48F, and the 4-leaf wind type fully oriented yarn FOY is obtained.

[0088] False-twisting the wound stretched yarn FOY, adopting medium-high temperature false-twisting, setting the temperature of the first hot box of the false twister to 180°C, the temperature of the second hot box to room temperature, the ratio of 1.075, and the processing speed of 500m / min to obtain a denier of 72dtex / 48F 4-leaf wind type...

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Abstract

The invention relates to a polyester false twist processing fiber. A cross section of the polyester false twist processing fiber is a heterotype cross section containing gaps; and the fiber crystallinity is 25-50%, the crimping elongation is 5-50%, the boiling water shrinkage is 3-20%, and the drying shrinkage is 15-25%. The polyester false twist processing fiber is excellent in crimping performance, a finished product made of gray fabric containing the polyester false twist processing fiber through heat treatment is remarkable in height performance, is excellent in lightweight performance, and has certain thermal insulation performance.

Description

technical field [0001] The invention relates to a polyester false-twisted processed fiber and a textile, in particular to a polyester false-twisted processed fiber with a special-shaped cross section containing voids and a textile for light weight use. Background technique [0002] Synthetic fiber textiles made of thermoplastic resins are widely used in the field of clothing because of their good mechanical properties, heat resistance and dyeability. For lightweight comfort, lightweight fibers are being developed. Compared with fiber textiles with ordinary circular cross-sections, fiber textiles with special-shaped cross-sections with voids have a good market situation, because they have the same thickness and the same appearance density as ordinary circular-section textiles. Fiber textiles with voids and profiled cross-sections have a certain lightweight effect. However, the fibers with special-shaped cross-sections currently used in the market are basically stretched fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D5/24D02G1/02D02J13/00
Inventor 赵锁林藤森稔
Owner TORAY FIBER RES INST(CHINA) CO LTD
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