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Nylon or polyester covering spandex method for yarn-dyed, knitted, piece-dyed fabrics

A technology of nylon and polyester, applied in the direction of textiles, papermaking, yarn, etc., to achieve uniform density, reduce cloth surface defects, improve weaving efficiency and cloth surface quality

Active Publication Date: 2022-07-15
LUTAI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the traditional single fixed coating process, and provide a nylon or polyester coating for yarn-dyed, knitted, and piece-dyed fabrics that is simple in process, high in output and low in consumption, and can significantly improve production efficiency and product quality. spandex method

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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  • Nylon or polyester covering spandex method for yarn-dyed, knitted, piece-dyed fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Yarn-dyed fabric covering process: 40D nylon + 20D spandex, twist: 610 twists / m, covering draft ratio: 3.2 times, covering yarn twist direction: S twist

[0019] Stainless steel aluminum tube is used. The surface of the aluminum tube is smooth and free of scratches. Tension-controlled winding machine is used. The weight of the covered yarn is 0.8KG / piece. , the coating machine is a computer-controlled coating machine, and the specific operation steps are as follows:

[0020] (1) Yarn pouring: pour the nylon raw yarn into the aluminum tube for the coating machine, the speed is 800m / min, the raw yarn and the aluminum tube yarn have the same center line, and the spandex denier is 20D;

[0021] (2) Parameter setting: carry out the spandex yarn, the aluminum tube yarn, and the paper tube in sequence, the transmission ratio of the drafting gear: 1345.996 / 610=2.2065, the transmission ratio of the feeding gear: 3768.789 / 610 / 3.2=1.9307, Transmission ratio of crimping...

Embodiment 2

[0024] Example 2: Piece-dyed fabric covering process: Nylon covering spandex method in piece-dyeing field

[0025] Covering twist: 50D polyester + 20D spandex, 580 twists / meter, covering draft: 3 times, covering yarn twist direction: Z twist

[0026] Stainless steel aluminum tube is used. The surface of the aluminum tube is smooth and free from scratches. Tension-controlled winding machine is used. The weight range of the covered yarn is 0.95KG / piece. The covered paper tube is made of parallel paper with smooth surface, no burrs and grooves The coating machine is a computer-controlled coating machine, and the specific operation steps are as follows:

[0027] (1) Yarn pouring: pour the polyester raw yarn into the aluminum tube for the coating machine, the speed is 900m / min, the raw yarn and the aluminum tube yarn have the same center line, and the spandex denier is 20D;

[0028] (2) Parameter setting: carry out the spandex swing yarn, aluminum tube swing yarn, install the pape...

Embodiment 3

[0031] Example 3: Knitted fabric covering process: nylon covering spandex method in the field of knitting

[0032] Covering twist: 40D nylon + 20D spandex, 550 twists / meter, covering draft: 2.8 times, covering yarn twist direction: S twist

[0033] Stainless steel aluminum tube is used. The surface of the aluminum tube is smooth and free of scratches. Tension-controlled winding machine is used. The weight range of the covered yarn is 0.9KG / piece. The coated paper tube is made of parallel paper with smooth surface, no burrs and grooves. The coating machine is a computer-controlled coating machine, and the specific operation steps are as follows:

[0034] (1) Yarn pouring: pour the nylon or polyester raw yarn into the aluminum tube for the coating machine, the speed is 1100m / min, the raw yarn and the aluminum tube yarn have the same center line, and the spandex denier is 20D;

[0035](2) Parameter setting: carry out the spandex yarn, the aluminum tube yarn, and the paper tube i...

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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Abstract

The invention provides a nylon or polyester covering spandex method for yarn-dyed, knitted and piece-dyed fabrics. The steps are: 1) pouring yarn: pouring the nylon or polyester raw yarn into an aluminum tube for a covering machine; 2) parameters Settings: Set parameters such as drafting gear, feeding gear, crimping gear, etc. 3) Spandex covering: Air humidity is 60‑75%, yarn density is 0.35‑0.55g / cm 3 , covering machine spindle speed 8000‑16000 rpm, drafting line speed 18‑25m / min, yarn crimp rate 89‑96%, covering twist 350‑900 twists, draft ratio 2.0‑3.6 times, wrapping Yarn speed 15-27m / min, nylon or polyester denier 20D-200D, covered yarn elasticity 60-75%, tension 9-25cN; 4) Lifting head: the spindle passes through the pre-drafting roller, the feeding roller, etc. Finally, the center line is the same with the ring guard, and the cradle is dropped to complete the yarn wrapping.

Description

technical field [0001] The invention provides a nylon or polyester covering spandex method suitable for yarn-dyed, knitted and piece-dyed fabrics, and belongs to the technical field of textile printing and dyeing. [0002] technical background [0003] High-elastic fabrics have been loved by people in recent years due to their excellent clothing performance, and have become more and more mainstream in the market. In the past few years, nylon and polyester covered spandex technology were mostly used in socks, knitted underwear and other fields, but in the field of yarn-dyed, knitted and piece-dyed fabrics, the covering process was relatively simple and fixed. Because yarn-dyed, knitted and piece-dyed fabrics have high requirements on yarn quality, and their dyeing methods, weaving methods, and finishing methods are different from the previous processes, the previous covering technology has a higher quality in yarn-dyed, knitted, and piece-dyed fabrics. In the production proce...

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): D02G3/38D02G3/32D02G3/04
CPCD02G3/38D02G3/328D02G3/045D10B2331/02D10B2331/04D10B2331/10
Inventor 陈伟伟王家宾张永斌邢成利张振全汪静朱俊杰王冲司维通
Owner LUTAI TEXTILE
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