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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 on the surface of the cotton fiber is increased, which in turn leads to low yarn strength and poor evenness of the dyed yarn obtained by recycling production. Weaving defects are prone to occur in the process

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 1

[0035] The scraps woven from Australian cotton long-staple cotton fibers are used as raw materials, and cut into strips of 10*3cm. The direction of warp and weft in the above strips is not limited. After opening, carding, drawing, and air-spinning, it is made into a branch. Cotton yarn with a count of 10S.

[0036] In embodiment 1, the fiber main body length of the cotton loose fibers obtained by opening can reach 28.3mm, and the short-staple rate is below 15%. In the two drawing frames in the technology, the drawing number of the two drawing frames is 6, and the actual drafting ratio is 6.1 and 8.2.

Embodiment 2-3

[0038] Embodiment 2 is based on the loose cotton loose fiber of embodiment 1 (the leftover cotton loose fiber with tight density), adopts the Xinjiang cotton that cotton fiber average length is 29.7cm to match cotton, and Xinjiang cotton weight accounts for 20% in the raw material fiber of spinning, and cotton Loose fiber accounts for 80%; embodiment 2 is produced by siro spinning, and the knitting cotton yarn with a count of 30S is made through opening, carding, drawing, roving, and spun yarn. The drawing frame adopts the two-way drawing-frame process in the prior art, and the number of drawing frames of the two-way drawing frames is 6, and the actual draft ratio is 6.55, 5.86, and the yarn twist of the knitted cotton yarn is 80 twists / 10cm in embodiment 2 .

[0039]Embodiment 3 is based on embodiment 2, and the difference is that the drawing adopts the three-way drawing process in the prior art, and the drawing number of the three-way drawing is 6, and the actual draft ratio...

Embodiment 4

[0041] Embodiment 4 is based on embodiment 3, the difference is that kapok fiber is also included in the cotton fiber, by weight percentage, Xinjiang cotton weight accounts for 20% in spinning raw material fiber, cotton loose fiber accounts for 75%, kapok fiber 5%, this kapok The fiber adopts Hainan kapok fiber with an average fiber length of about 13mm.

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 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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