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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 stability during post-engineering processing, or the equipment needs a lot of modification, resulting in high production costs and cannot be popularized and applied.

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

Embodiment 1

[0055] Through composite spinning, the skin is C-type polyethylene terephthalate (PET), the core is a skin-core structure of alkali-soluble copolyester (COPET) and the cross-section is a circular 36-hole unstretched wire, The raw material yarn respectively passes through the hot box between the first wire feed roller and the second wire feed roller, a special device, and a false twister. The temperature of the hot box is 200°C, and the twist number provided by the false twister is 3700T / M. 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. The stretching between the second roller and the first roller The ratio is 1.72, the yarn is blown and twisted by the compressed air of 0.15Kpa provided by the network device in the state of 3% overfeeding between the second and third wire feed rollers to form a network, and the stretch...

Embodiment 2

[0059] Use the 36-hole polyethylene terephthalate (PET) unstretched yarn obtained by spinning at a speed of 2800M / min. The 24-hole section of the raw silk is circular and the 12-hole section is gear-shaped, and the processing speed is 450m / min , the temperature of the hot box is 185°C, the stretch ratio is 1.67, and the twist number provided by the false twister is 3700T / M. After the interference of the special device, the actual twist number in the hot box drops to 1800T / M. The state of overfeeding 3.5% between the wire feeding rollers is blown and twisted by the compressed air of 0.30Kpa provided by the networker to form a network, and the yarn is heated by a reheating box with a temperature of 170°C provided between the second roller and the third roller After secondary heating and setting to improve the stability of the crimp, the stretched yarn is wound and formed by a coiling mechanism.

[0060] The prepared textured yarn calculates its cross-sectional deformation (JB) v...

Embodiment 3

[0062] Use polyethylene terephthalate (PET) spinning to obtain cross-section as circular 36 hole unstretched silk as raw material silk, by the processing method described in embodiment 1, processing speed 370m / min, draw ratio is 1.82, the temperature of the hot box is 205°C, and the actual twist number in the hot box is reduced to 1900T / M by means of a special rotary device. The calculated value of the cross-sectional deformation (JB) of the obtained stretched yarn is 15%, and the stretch recovery rate CR value It is 17%, the boiling water shrinkage is 6.2%, and the monofilament fineness is 2.7dtex. The fabric made of the stretched yarn as a warp and weft plain weave has suitable softness and soft luster that conventional stretched yarn does not have.

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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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