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PE/PET composite ultra-short non-crimp fiber post-treatment production method and device

A post-processing device and fiber crimping technology, applied in the heat treatment of artificial filaments, complete sets of equipment for the production of artificial threads, stretch spinning, etc., can solve the problem of insufficient PE/PET fiber talent concentration and fiber quality that cannot meet the high-end market demand , less PE/PET fibers, etc., to achieve the effect of reducing production costs, reducing the proportion of mixing, and increasing the bonding strength

Pending Publication Date: 2021-04-23
扬州石化有限责任公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the concentration of talents in the domestic PE / PET fiber industry is not enough, and few people do basic research on PE / PET fiber
At the same time, the equipment level of domestic production lines is generally not high, and the fiber quality cannot meet the needs of the high-end market

Method used

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  • PE/PET composite ultra-short non-crimp fiber post-treatment production method and device

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0037] A post-processing production method of PE / PET composite ultra-short non-crimp fibers, the steps of the post-processing method are as follows:

[0038] Step S1, pre-spinning strands bundled and bathed.

[0039] Step S1.1, bundle the pre-spun raw filaments according to a certain total denier of bundles, and control the tension of each filament bundle to be basically the same.

[0040] Step S1.2. Divide the total tow bundled in step S1.1 into three uniform pieces, and dip in a immersion bath with a length of 6m in hot water at 75°C to promote the relaxation of the molecular chains of the original silk and eliminate the internal stress.

[0041] Step S2, preliminary stretching of the tow.

[0042] Step S2.1. Preliminarily thermally stretch the tow after soaking in step S1.2 in a water bath with a length of 4 m in hot water at 80° C., and the str...

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Abstract

The invention discloses a PE / PET composite ultra-short non-crimp fiber post-treatment production method and device. The production method comprises the steps of pre-spinning precursor bundling, dipping bath, primary tow stretching, secondary tow stretching, tow crimping, tow laying, tow loosening and shaping, tow cutting, packaging and the like. The corresponding post-treatment device comprises a bundling frame, a dipping bath tank, a water bath tank, a steam drafting box, an oiling machine, a yarn stacking machine, a crimping machine, a drying setting machine, a cutting machine and a packaging machine which are sequentially arranged on a workbench from left to right. Through specific post-treatment method including dipping bath, drafting, crimping, shaping and cutting, the melting point of the skin layer of the prepared PE / PET composite ultra-short non-crimp fiber can be reduced, the bonding strength of non-woven fabric is improved, the doping proportion of the fiber is reduced, and the downstream production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of non-woven composite fibers, in particular to a post-processing production method and device for PE / PET composite ultra-short non-crimp fibers. Background technique [0002] The market prospect of PE / PET composite fiber is broad. PE / PET fiber belongs to the key development varieties of my country's textile industry. The outstanding advantages and quality of PE / PET fiber have been gradually recognized by people. Its application fields and market development prospects are immeasurable. The global output of PE / PET fiber in 2017 was 1.88 million tons, and the output in 2018 and 2019 was 2.08 million tons and 2.3 million tons respectively. It is expected that the output in 2020 and 2021 will reach 2.55 million tons and 2.81 million tons. From the perspective of PE / PET output growth, PE / PET fiber, as a differentiated fiber variety, has an annual market growth rate of more than 10%. The PE / PET fiber industry is ...

Claims

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Application Information

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IPC IPC(8): D01D13/00D01D5/14D01D10/02D01D10/06
CPCD01D5/14D01D10/02D01D10/06D01D13/00
Inventor 陈祥黄常青翟根林郭海燕张楠
Owner 扬州石化有限责任公司
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