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Method for processing silk wrapped stretch yarns

A processing method and elastic yarn technology, applied in textiles, papermaking, yarn, etc., to achieve the effects of easy industrial production, good elasticity and strength, and high production efficiency

Inactive Publication Date: 2012-06-20
薛金礼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there are a series of technical problems that have not been solved in practice, especially the covering of real silk on spandex yarn.

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 Construction

[0009] The embodiment of the present invention is as follows: core silk 20D spandex, surface silk 20 / 22D mulberry silk (not degummed), the skeined silk is wound on the bobbin, and then merged after decomposing with a small tension on the wire doubling machine, and the number of merged threads is 3 root, the unwinding tension is 5 ± 1 gram, and the combined surface silk is wound on the bobbin through dynamic balance, and then spirally wrapped on the core thread on the hollow spindle, the spindle speed is 12400rpm, the core thread overfeed rate is 15%, and the pulling The elongation ratio is 2.5, and the covering degree is 760 degrees / m. The covering yarn is wound into a cone-shaped bobbin, and then steam-set at 95°C for 50 minutes. Finally obtained elastic silk (without degumming) fineness 68, strength 2.7cN / tex, elongation at break 20.2%, crimp shrinkage 27.7%, silk and spandex content ratio 85:15.

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PUM

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Abstract

The invention relates to a method for processing silk wrapped stretch yarns, which is characterized by including: spooling unscoured reeled silks, axially unwinding the silks, and winding the silks on a silk covering silk bobbin, wherein unwinding tension is smaller than or equal to 6+ / -1g, and two to four raw silks can be combined; using a hollow covering spindle to perform spiral covering on spandex corn filaments, wherein covering degree ranges from 400-2000, drafting ratio of the corn filaments is 1.5-4, and overfeed ratio of the corn filaments is 4-25%. Cocoons with covering silks are shaped via steam to soften and bond sericin so as to fix the covering degree. Shaping time is in an hour, shaping temperature ranges from 70 DEG C to 100 DEG C, and each winding bobbin is made of a meshed bobbing with holes on the wall to benefit bobbin steaming. Fineness of the composite yarns is wide in range, the most fineness can reach about 20D (deniers) substantially meeting variety requirements of different fabrics, and the fabrics are high in both stretch and strength. The method as an independent process is unlimited by other process conditions, applicable to pre-mill procedures, convenient in industrial production and high in production efficiency.

Description

technical field [0001] The invention relates to a processing method of silk covered elastic yarn, which belongs to the technical field of textiles. Background technique [0002] In the existing processing method of real silk elastic yarn, one kind of process route is to carry out physical and chemical treatment to silk, or the two are combined; Another kind of method is to make elastic yarn by compounding real silk and elastic fiber. [0003] Making elastic silk with the former method will damage the silk fiber more, or the original characteristics of the silk fiber will be partially lost, and the product has poor elasticity, and the elasticity retention time is shorter. The elastic yarn made by the latter method has better elasticity, longer elastic retention time, and easy control of elastic elongation. In this type of method, it is typical to make elastic silk by wrapping silk on the spandex core silk in the silk reeling process. Adopt this method to need to install spe...

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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IPC IPC(8): D02G3/36D02G3/32
Inventor 薛金礼
Owner 薛金礼