Method for producing recycled cotton fabrics from leftover materials

A production method and scrap technology, applied in the decomposition and recovery of textiles, weaving, yarn, etc., can solve the problems of increased surface friction of cotton fibers, poor evenness, and low average length of recycled fibers, so as to improve the utilization rate, Good economic benefit and reduced dosage

Inactive Publication Date: 2019-06-18
JIANGYIN HARVEST KNITTING & GARMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the average length of the recycled fiber is low, the amount of grease on the surface of the cotton fiber after one production and the opening of the leftover material is reduced, and the friction force

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

Example Embodiment

[0034] Example 1

[0035] The leftover material woven with Australian cotton long-staple cotton fiber is used as the raw material, and the cloth strips of 10*3cm are cut. The warp and weft directions in the cloth strips are not limited. After opening, carding, drawing, and air spinning Thick cotton yarn counted as 10S.

[0036] The fiber body length of the loose cotton fiber obtained in Example 1 can reach 28.3mm, the short-staple rate is less than 15%, and the carded raw material is 100% cotton loose fiber. No new cotton is added, and the drawing adopts existing In the technology of the two-drawing process, the number of draws for both draws is 6, and the actual drafting multiples are 6.1 and 8.2.

Example Embodiment

[0037] Example 2-3

[0038] Example 2 is based on the open cotton loose fiber (tight-density leftover cotton loose fiber) of Example 1, using Xinjiang cotton with an average length of 29.7cm cotton fiber. The weight of Xinjiang cotton in the spinning raw material fiber is 20%. The bulk fiber accounts for 80%; Example 2 is produced by Siro spinning, and is made into knitted cotton yarn with a count of 30S through opening, carding, drawing, roving, and spun yarn. The drawing adopts the two-pass drawing process in the prior art. The number of draws of the two draws is 6, and the actual draft multiples are 6.55 and 5.86. The yarn twist of the knitted cotton yarn in Example 2 is 80 twists / 10cm .

[0039] Example 3 is based on Example 2. The difference is that the drawing adopts the three-pass drawing process in the prior art. The number of three-pass drawing is 6, and the actual draft multiples are 6.55, 5.86 and 7.42. Example 2 The twist of the middle knitted cotton yarn is 95 twists...

Example Embodiment

[0040] Example 4

[0041] Example 4 is based on Example 3. The difference is that the cotton blending fiber also includes kapok fiber. In terms of weight percentage, Xinjiang cotton is 20% by weight, cotton loose fiber is 75%, and kapok fiber is 5%. The fiber uses Hainan kapok fiber with an average fiber length of about 13mm.

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Abstract

The invention discloses a method for producing recycled cotton fabrics from leftover materials. The method includes the following steps: S1, classifying and collecting the leftover materials; S2, slitting the leftover materials into cloth strips, and subjecting the cloth strips to opening and dedusting to obtain cotton bulk fibers; S3, sequentially subjecting the cotton bulk fibers to carding, drawing and spinning to obtain recycled cotton yarns; S4, weaving the recycled cotton yarns into the recycled cotton fabrics. The method has the advantages that the recycled cotton fabrics are obtained by classifying, collecting, slitting, opening, impurity removing, carding, spinning and weaving raw materials, namely the leftover materials produced after garment manufacturing, so that industrial recycling of the leftover materials is realized, and the consumption of new cotton materials in fabric production is reduced; the recycled cotton fabrics prepared from the leftover materials through cotton assorting are correspondingly heather grey, and colored fiber flocks form a unique color point style on the cloth surface; a fabric dyeing process is omitted from production engineering of the recycled cotton fabrics, the market price of the products is 120% of that of ordinary grey products, and accordingly, the economic benefit is good.

Description

technical field [0001] The invention relates to the technical field of fabric production technology, in particular to a method for producing recycled cotton fabric based on leftover materials. Background technique [0002] With the increasing pressure of environmental protection in the clothing industry, technicians are also actively exploring more optimized recycling methods to achieve closed-loop sustainable development of the textile and clothing industry. Taking the large amount of leftovers produced in the garment manufacturing process as an example, there are two main traditional processing methods. Some of the leftovers will be treated as waste, and the other part will be used at a low level, such as processed into rags, industrial liners, and labor insurance. Articles or the greenhouse insulation quilt etc. as described in CN109176966A. However, the average length of the recycled fiber is low, the amount of grease on the surface of the cotton fiber after one product...

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): D03D15/00D02G3/04D01G11/04D03D15/217
CPCY02W30/66
Inventor 展平
Owner JIANGYIN HARVEST KNITTING & GARMENTS
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