A thermoplastic resin false twist processed yarn

A technology of thermoplastic resin and false twisting, which is applied in filament/thread forming, liquid/gas/steam yarn/filament processing, textile and papermaking, etc., to achieve good thermal insulation performance, improved cross-sectional void ratio, and cross-sectional void ratio high effect

Active Publication Date: 2019-03-22
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is 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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  • A thermoplastic resin false twist processed yarn
  • A thermoplastic resin false twist processed yarn
  • A thermoplastic resin false twist processed yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0064] 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 90dtex / 48F to obtain 4-leaf wind type fully oriented yarn FOY.

[0065] False-twisting 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 84dtex / 48F 4-blade type false twist processed yar...

Embodiment 2

[0067] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0068] 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 90dtex / 48F to obtain 4-leaf wind type fully oriented yarn FOY.

[0069] False-twist 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 84dtex / 48F 4-blade type false twist processed yar...

Embodiment 3

[0071] The polyethylene terephthalate chips with a moisture content of about 30ppm after vacuum drying are passed through the screw extruder. Press into the assembly.

[0072] 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 90dtex / 48F to obtain 4-leaf wind type fully oriented yarn FOY.

[0073] False-twisting the wound stretched yarn FOY, using medium-high temperature false-twisting, the temperature of the first hot box of the false twister is set to 180°C, the temperature of the second hot box is room temperature, the ratio is 1.075, the processing speed is 500m / min, and the fineness is 84dtex / 48F 4-blade type false twist processed y...

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Abstract

The invention discloses a thermoplastic resin false twist processed filament. A cross section of the filament is cross-shaped, Y-shaped or windmill-shaped; voidage of the cross section if 10% to 40%; when the false twist processed filament is heat-moisture processed, the voidage is 40% to 70%; and a heat-moisture treatment condition is that hot water with temperature of 90 to 100 DEG C is required and the processing time is 20 to 25 minutes. The fabric made from the fibers has great dyeing property, fluffiness and excellent elasticity and hand feeling.

Description

technical field [0001] The present invention relates to a thermoplastic resin false twist processed yarn. 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. Compared with fiber textiles with ordinary circular cross-sections, fiber textiles with special-shaped cross-sections have more gaps between the internal fibers. The capillary phenomenon generated by the fine grooves on the fiber surface can make sweat quickly spread to the surface of the textile and Volatile, so as to achieve the effect of moisture absorption and quick drying. At present, the cross-sectional shapes of special-shaped cross-section fibers are mainly cross-shaped, Y-shaped, triangular, flat or multi-lobal. [0003] On the other hand, in order to make synthetic fiber textiles have a fluffy feel effect, ordinary false twisting processing methods are generall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D02G1/00D06B3/04
Inventor 司淼曹海兵藤森稔
Owner TORAY IND INC
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