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False twisted fibers and production method thereof

A manufacturing method and fiber technology, which are applied in the field of false twisted fibers and their manufacturing, can solve the problems of low expansion recovery rate, poor hand feeling, and insufficient fabric bulkiness.

Inactive Publication Date: 2012-07-11
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the fiber adopts the twisting process, the stretch recovery rate of the processed yarn is lower than 2%, which is almost close to the effect of the original yarn. The fabric has insufficient bulkiness and poor hand feeling, and the application area still has certain limitations.
[0007] Among the known examples listed above, the relevant technologies of hollow fibers have been known for a long time, but a hollow fiber with a higher hollow ratio and a good fluffy effect has not been mentioned yet.

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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  • False twisted fibers and production method thereof
  • False twisted fibers and production method thereof
  • False twisted fibers and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Pass the high-shrinkage polyester chips (polyester with more than 90 mole percent of ethylene terephthalate) with a moisture content of less than 100 ppm after vacuum drying through the screw extruder. ℃, make it into a molten state, flow into the metering pump, and press it into the component after accurate metering;

[0066] Use a triangular hollow spinneret for spinning, the hole depth of the spinneret is 135mm, and it is cooled by side blowing. °C, the temperature of the second hot roll is 130 °C, and the speed ratio between the two hot rolls: the first hot roll is 1.75. Control the fineness to 95dtex / 36F to obtain hollow fully oriented yarn FOY;

[0067] Low-temperature false-twist processing is carried out on the wound hollow drawn yarn FOY. The temperature of the first hot box of the false twister is set at 60°C, the temperature of the second hot box is at room temperature, the magnification is 1.05, and the coiling speed is 450m / min, so that the denier is 84dte...

Embodiment 2

[0069] Pass the high-shrinkage polyester chips (polyester with more than 90 mole percent of ethylene terephthalate) with a moisture content of less than 100 ppm after vacuum drying through the screw extruder. ℃, make it into a molten state, flow into the metering pump, and press it into the component after accurate metering;

[0070] Use a triangular hollow spinneret for spinning, the hole depth of the spinneret is 135mm, and it is cooled by side blowing. °C, the temperature of the second hot roll is 130 °C, and the speed ratio between the two hot rolls: the first hot roll is 1.75. Control the fineness to 95dtex / 36F to obtain hollow fully oriented yarn FOY;

[0071] Low-temperature false-twist processing is carried out on the wound hollow stretched yarn FOY. The temperature of the first hot box of the false twister is set at 80°C, the temperature of the second hot box is at room temperature, the magnification is 1.05, and the coiling speed is 450m / min, so that the denier is 8...

Embodiment 3

[0073] Pass the high-shrinkage polyester chips (polyester with more than 90 mole percent of ethylene terephthalate) with a moisture content of less than 100 ppm after vacuum drying through the screw extruder. ℃, make it into a molten state, flow into the metering pump, and press it into the component after accurate metering;

[0074] Use a triangular hollow spinneret for spinning, the hole depth of the spinneret is 135mm, and it is cooled by side blowing. °C, the temperature of the second hot roll is 130 °C, and the speed ratio between the two hot rolls: the first hot roll is 1.75. Control the fineness to 95dtex / 36F to obtain hollow fully oriented yarn FOY;

[0075] Low-temperature false-twisting processing is carried out on the wound hollow drawn yarn FOY. The temperature of the first hot box of the false twister is set at 100°C, the temperature of the second hot box is at room temperature, the magnification is 1.05, and the coiling speed is 450m / min, so that the denier is 8...

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Abstract

The invention discloses false twisted fibers and a production method thereof. Fiber-forming polymer for each fiber is 90 mole% of polyester, polyethylene terephthalate, a continuous through hollow is reserved in the center of the fiber, the flatness of the fiber is 1.2-3.0, the hollow ratio of the fiber is 2%-8%, and the hollow ratio of texted yarns of cloth which is woven with the fibers and subjected to heat treatment at 60-180 DEG C restores to 10-35%. The false twisted fibers are widely applied to the fields of civilian clothing, sports apparel, occupational apparel, interior decoration, bedding, footgear, medical supplies, high-grade filler and the like.

Description

technical field [0001] The present invention relates to a false twist processed fiber and its manufacturing method. Background technique [0002] With the improvement of social and economic development level and people's living standards, the requirements for clothing are getting higher and higher. At the same time, with the improvement of various manufacturing technologies, the production of fibers with various cross-sectional shapes that meet people's requirements has also become a reality. Among them, a lightweight and heat-retaining fiber material has gradually become the latest trend. Because of its light weight, good warmth retention, moisture absorption and perspiration and other excellent properties, it is more and more popular among people. The products are widely used in civil clothing, sports clothing, professional clothing, interior decoration, bedding, footwear, medical supplies and advanced fillers, etc. [0003] In order to achieve the effect of light weigh...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/02D01F6/92D01D5/24D01D5/253
Inventor 曹海兵藤森稔
Owner TORAY FIBER RES INST(CHINA) CO LTD
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