Preparation method of moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber

A composite fiber, moisture-absorbing and sweat-wicking technology, applied in fiber processing, melt spinning, filament/thread forming, etc., to achieve the effect of improving moisture-wicking performance

Active Publication Date: 2018-04-24
南通华盛高聚物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is to improve the moisture absorption and perspiration performance of the fabric in the textile process step, but the defects of the fiber itself still exist

Method used

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  • Preparation method of moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber
  • Preparation method of moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber
  • Preparation method of moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The raw material has an intrinsic viscosity of 1.0dl / g of PLA, an intrinsic viscosity of 0.6dl / g of PET, and the mass ratio of PLA to PET is 80:20.

[0062] A preparation method of PLA / PET side-by-side composite fiber capable of absorbing moisture and wicking sweat specifically includes the following steps:

[0063] The PLA slices are dried through three-stage drying to obtain dried PLA slices with a moisture content of less than 0.005%. The dried PLA chips are extruded at low temperature and high temperature by the screw, metered into the side-by-side composite assembly, undergo side-by-side composite distribution, and are side-by-side composite with PET at the composite spinneret. The PET chips are dried in three stages to obtain dried PET chips with a moisture content of less than 0.005%. The dried PET chips are extruded at low temperature and high temperature by the screw, and then measured into the parallel composite assembly for parallel composite distribution, and pa...

Embodiment 2

[0068] The raw material has PLA with an intrinsic viscosity of 1.0 dl / g and PET with an intrinsic viscosity of 0.6 dl / g. The mass ratio of PLA to PET is 50:50.

[0069] A preparation method of PLA / PET side-by-side composite fiber capable of absorbing moisture and wicking sweat specifically includes the following steps:

[0070] The PLA slices are dried through three-stage drying to obtain dried PLA slices with a moisture content of less than 0.005%. The dried PLA chips are extruded at low temperature and high temperature by the screw, metered into the side-by-side composite assembly, undergo side-by-side composite distribution, and are side-by-side composite with PET at the composite spinneret. The PET chips are dried in three stages to obtain dried PET chips with a moisture content of less than 0.005%. The dried PET chips are extruded at low temperature and high temperature by the screw, and then measured into the parallel composite assembly for parallel composite distribution, a...

Embodiment 3

[0075] The raw material has PLA with an intrinsic viscosity of 1.5dl / g and PET with an intrinsic viscosity of 0.8dl / g. The mass ratio of PLA to PET is 80:20.

[0076] A preparation method of PLA / PET side-by-side composite fiber capable of absorbing moisture and wicking sweat specifically includes the following steps:

[0077] The PLA slices are dried through three-stage drying to obtain dried PLA slices with a moisture content of less than 0.005%. The dried PLA chips are extruded at low temperature and high temperature by the screw, metered into the side-by-side composite assembly, undergo side-by-side composite distribution, and are side-by-side composite with PET at the composite spinneret. The PET chips are dried in three stages to obtain dried PET chips with a moisture content of less than 0.005%. The dried PET chips are extruded at low temperature and high temperature by the screw, and then measured into the parallel composite assembly for parallel composite distribution, and...

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Abstract

The invention provides a preparation method of a moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber. PLA slices and PET slices are separately subjected to three-segment type dryingand screw-rod melting, enter a spinning box body and are compounded side by side at a spinneret plate, a side-by-side compound fiber from the spinneret plate is cooled by wind blowing, oiled, wound,dragged, contained and then subjected to oil-immersed water bath stretching, steam stretching, oiled cooling and hot shaping, and the moisture-absorbing sweat-releasing PLA/PET side-by-side compound fiber is obtained; the mass ratio of PLA to PET is 80:20-50:50. The PLA/PET side-by-side compound fiber is excellent in moisture absorbing and sweat releasing performance and suitable for the field ofapparel fabric, in particular to the field of sports apparel fabric.

Description

Technical field [0001] The invention relates to the technical field of composite fiber production, in particular to a method for preparing a PLA / PET parallel composite fiber capable of absorbing moisture and wicking sweat. Background technique [0002] Moisture absorption and sweat wicking is one of the important factors affecting the wearing comfort of sports clothing. When the human body secretes too much sweat, if the fabric cannot quickly guide the sweat to the outer surface of the fabric and volatilize into the air, it will cause the human body to feel sticky or stuffy, resulting in uncomfortable wearing. Natural fibers usually have good moisture absorption and air permeability, but when a large amount of sweat is absorbed, natural fibers will absorb moisture and expand, resulting in a reduction in the space between the fibers, affecting the transfer of sweat, and making the human body feel stuffy; synthetic fibers have good moisture conductivity Quick-drying performance, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/32D01D5/253D01D5/08D01D1/04D01F8/14
CPCD01D1/04D01D5/08D01D5/253D01D5/32D01F8/14
Inventor 沈坤良张春华冯爱华
Owner 南通华盛高聚物科技股份有限公司
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