Textured yarn and processing method, special device and applications thereof

A processing method and a technology of stretching yarn, applied in textiles and papermaking, fiber treatment, yarn, etc., can solve the problems of poor dimensional stability, large shrinkage of processed yarn, high production cost of equipment, etc., and achieve a simple and easy processing method , good fluffiness, and low manufacturing cost

Inactive Publication Date: 2010-09-08
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above method, or the false twisting at low temperature causes the shrinkage of the processed yarn to be too large, resulting in poor dimensional

Method used

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  • Textured yarn and processing method, special device and applications thereof
  • Textured yarn and processing method, special device and applications thereof
  • Textured yarn and processing method, special device and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1

[0055] Through composite spinning, a C-type polyethylene terephthalate (PET) sheath is obtained, and the core is an alkali-soluble copolyester (COPET) sheath-core structure and a 36-hole undrawn yarn with a circular cross-section. The raw yarn passes through the heating box between the first and second feeding rollers, special devices, and false twisters. The temperature of the heating box is 200℃, and the false twister provides 3700T / M twists. After the device is disturbed, the actual number of twists in the hot box drops to 160T / M, the starting point of yarn twisting is the first roller at the front of the hot box, the processing speed is 500m / min, and the stretching between the second roller and the first roller The ratio is 1.72, and the yarn is over-feeded by 3% between the second and third feeding rollers. The compressed air of 0.15Kpa provided by the network device is blown and twisted to form a network, and the stretched yarn is made by winding and mold...

Example Embodiment

[0058] Example 2

[0059] 36-hole polyethylene terephthalate (PET) unstretched yarn obtained by spinning at a speed of 2800M / min. The 24-hole cross-section of the original yarn is circular and the 12-hole cross-section is gear type. The processing speed is 450m / min. , The temperature of the hot box is 185℃, the stretching ratio is 1.67, the twist number provided by the false twister is 3700T / M, the actual twist number in the hot box drops to 1800T / M after the interference of the special device, and the yarn is in the second and third The feed rollers are over fed by 3.5% in the state of overfeeding through the 0.30Kpa compressed air provided by the network device to form a network, and the yarn is heated by the reheating box provided between the second roller and the third roller at 170℃. After reheating and setting to improve the stability of crimping, the stretched yarn is made by winding and molding through the winding mechanism.

[0060] The prepared texturing yarn calculates ...

Example Embodiment

[0061] Example 3

[0062] Using polyethylene terephthalate (PET) spinning to obtain a circular cross-section 36-hole undrawn yarn as the raw material yarn, by the processing method described in Example 1, the processing speed is 370m / min, and the drawing ratio is 1.82, the temperature of the hot box is 205℃, the actual number of twists in the hot box is reduced to 1900T / M through a special rotary device, and the calculated value of the cross-sectional deformation (JB) of the stretched yarn is 15%, and the expansion recovery rate CR value It is 17%, the boiling water shrinkage is 6.2%, and the single filament fineness is 2.7 dtex. The stretched yarn is a fabric made of warp and weft plain weave with suitable softness and soft luster that conventional stretched yarns do not possess.

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Abstract

The invention discloses a textured yarn and a processing method, special device and applications thereof. The textured yarn has lower cross-section deformability and boiling water shrinkage. The processing method is to use the special device to disturb the number of turns of the yarns in a thermosetting box in the twisting area of a texturing device to obtain the textured yarn characterized by low elastic recovery rate and cross-section deformability. The textured yarn prepared by the method fills the gap of low crimp textured yarn between the draw yarn and the low stretch yarn, the processed yarn is characterized by low cross-section deformability, smoothness and good luster and the processing method of the invention is especially suitable to process the tri-differential filament with irregular section which has low cross-section deformability to maintain the cut surface characteristic of the yarn. The processed yarn not only has a certain inherent crimp characteristic of the textured yarn, but also the low cross-section deformability characteristic of the draw yarn, thus expanding the process range of the existing texturing device.

Description

technical field [0001] The invention relates to a textured yarn, its processing method, special device and application. Background technique [0002] In the field of fabric production, in order to obtain synthetic fibers close to natural fibers, so that the fibers have a certain degree of bulkiness and elasticity, stretching equipment is usually used to stretch and false twist synthetic fibers. [0003] In order to make the fiber have a certain functionality or natural style, various non-circular cross-section fibers or composite fibers are produced, so that the synthetic fiber can achieve or have a silk-like luster or moisture absorption and quick-drying properties (usually extended silk) , but the bulkiness and elasticity will be relatively lacking. [0004] The conventional texturing process is to stretch the raw material yarn under high temperature heating state and twist it at the same time. After untwisting, the fiber retains the curl produced by the twisting, so that...

Claims

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Application Information

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IPC IPC(8): D02G3/22D02G1/02D02J1/08D02J1/22D02J13/00D06M11/00
Inventor 景红川清水敏昭渡边郁子
Owner TORAY FIBER RES INST(CHINA) CO LTD
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