Powerful three-dimensional crimp memory fibers and production method thereof

A three-dimensional crimping and memory fiber technology, applied in the field of fiber manufacturing, can solve the problems of poor crimp memory performance and crimp compression performance, restricting the development of textile fabrics, furs, carpets, poor compression recovery performance, etc., and achieve excellent quality and compatibility. And the effect of good stability and uniform dispersion

Inactive Publication Date: 2014-02-19
YANGZHOU GUANGTAI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is achieved by the different shrinkage rates of the two materials that are combined together. It is also a physical curl, rather than the intrinsic curl characteristics inherent in the molecular chain itself. Although it has good curl, its curl memory performance and curl compression Poor performance,...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035](1) Put PCT slices and PTT slices into their respective material continuous crystallization beds and drying towers to make dry slices with a moisture content of <30ppm. Through the continuous metering device under their respective drying towers, PCT dry slices and PTT dry slices are respectively Precise metering is carried out to ensure the respective required parts by weight when melting and blending, that is, PCT accounts for 60-80% by weight, and PTT accounts for 20-40% by weight. The measured dry slices are passed through the positive and negative tangential rotary mixer in the same pipeline to mix the two slices evenly, and enter the three-screw extruder for melting and mixing to obtain uniformly dispersed and stable co- The three-screw extruder is equipped with nine heating zones, and the heating temperatures of each zone are 275°C, 280°C, 285°C, 280°C, 285°C, 290°C, 285°C, 290°C, and 295°C. The spinnable melt extruded from the three-screw is transported to the spi...

Embodiment 2

[0041] The spinning and winding pulling speed is 500m / min, and the rest are the same as in Example 1.

Embodiment 3

[0043] The spinning and winding pulling speed is 1100m / min, and the rest are the same as in Example 1.

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PUM

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Abstract

The invention relates to a powerful three-dimensional crimp memory fiber and a production method thereof. Raw materials employed include Poly(1,4-cyclohexylene dimethylene terephthalate) (PCT for short) and poly(trimethylene terephthalate) (PTT for short); and the raw materials are melted, mixed and subjected to blend spinning. According to the invention, a blend melt which is formed by melting and blending the polymers and even and stable in dispersion is subjected to spinning, drafting and the like, so that three-dimensional short fibers with very excellent crimp and memory properties can be obtained. On one hand, the PCT has very good crimp and compression reversion properties, and more easily form lots of dense crimps under the synergistic effect of the high elasticity performance of the PTT, and the PTT has extremely good memory performance and is capable of locking the crimps formed; and as a result, the powerful three-dimensional crimp memory fibers are capable of always keeping the oringinal crimp state.

Description

technical field [0001] The invention relates to fiber manufacturing, in particular to a novel three-dimensional crimped memory fiber and a manufacturing method thereof, belonging to the technical field of textiles. Background technique [0002] The curling effect of the three-dimensional crimped fibers that appear on the existing market is mainly formed by simple physical effects, and its fiber curl memory performance, crimp compression performance and crimp durability are poor, especially the compression recovery performance is worse; and During use, the curling performance will gradually decrease, and the effect of permanent curling will not be achieved. The original three-dimensional curly fiber adopts ordinary polyester raw materials and conventional staple fiber technology, and its molecular chain structure does not have the rigid and flexible "S" and "Z" structures. Therefore, when it is stretched or compressed, when the external force is removed Afterwards, it cannot...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01D5/08D01D5/253D01D5/088D01D1/00D02G1/20
Inventor 陈仕艳徐玉和刘艳徐军
Owner YANGZHOU GUANGTAI CHEM FIBER
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