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A strong three-dimensional curly memory fiber and its manufacturing method

A three-dimensional crimp and memory fiber technology, applied in the field of fiber manufacturing, can solve the problems that restrict the development of textile fabrics, furs, carpets, poor curl memory performance, poor curl compression performance, and poor compression recovery performance, and achieve compatibility and stability. Good, excellent quality, evenly dispersed effect

Inactive Publication Date: 2016-08-17
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, especially compression recovery performance, high production cost
[0005] So far, there has not been a fiber with strong three-dimensional curl memory in the domestic market, which cannot meet the needs of people's living standards, and also restricts the development of textile fabrics, fur, carpets and other industries.

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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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

PropertyMeasurementUnit
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Abstract

The invention relates to a powerful three-dimensional curly memory fiber and a manufacturing method thereof. Raw materials include: poly(1,4-cyclohexanedimethanol terephthalate) referred to as PCT; propylene glycol terephthalate referred to as PTT; blended and spun through melting and kneading. The invention uses the homogeneously dispersed and stable blend melt formed by melting and blending of polymers to carry out spinning, drawing and other processes to obtain three-dimensional short fibers with excellent curling and memory properties. On the one hand, it is because PCT itself has very good curling and compression recovery properties. In addition, under the synergistic effect of PTT’s high elastic properties, PCT is easier to form multiple and dense curls, and PTT also has excellent memory properties, which can lock Holds the formed curl and always maintains the original curl 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

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 Patents(China)
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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