Method for extracting cotton fibers from waste elastic cotton gauze

A cotton gauze, cotton fiber technology, applied in the direction of fiber processing, decomposition of fiber-containing substances, textile decomposition and recovery, etc., can solve the problem of reducing the environmental pollution caused by cotton elastic gauze, environmental pollution, and the difficulty of effectively utilizing waste cotton elastic gauze, etc. problems, achieve huge social and economic benefits, and reduce environmental pollution.

Inactive Publication Date: 2011-03-09
TONGLING DELILAI SPINNING
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Cotton elastic gauze is spun into cotton elastic yarn by adding spandex elastic yarn in the warp process, and made into pure cotton elastic cloth. A certain amount of waste is inevitably produced in the production process. Since the waste contains about 3% spandex yarn, Therefore, this kind of waste cotton elastic gauze cannot be reused and processed, which will inevitably cause the waste cotton elastic gauze to be difficult to be effectively utilized. If the waste cotton elastic gauze is not handled properly, it will cause environmental pollution. Therefore, cotton fibers are extracted from waste cotton elastic gauze The technology can make textile waste be effectively recycled and comprehensively utilized to make up for the shortage of textile cotton fiber, which opens up a new way for the textile industry to recycle textile waste, which not only reduces the environmental pollution of cotton elastic gauze, It can also reuse waste, so it has huge social and economic benefits

Method used

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Experimental program
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Embodiment Construction

[0015] A method for extracting cotton fiber from waste cotton elastic gauze, according to the following steps:

[0016] (1) Soak waste elastic gauze at room temperature, Robust ratio 1:5, time 30 minutes;

[0017] (2) washing the soaked waste elastic gauze;

[0018] (3) High-temperature and high-pressure cooking of the washed waste elastic gauze, the conditions are: Robust ratio 1:10, temperature 150°C, pressure 4 Kg, new solvent glacial acetic acid 90% or more, time 2 hours;

[0019] (4) Then wash with water, Robust 1:20, at room temperature, to remove ammonia silk;

[0020] (5) Dehydrate the waste elastic gauze after removing ammonia silk, so that the moisture regain is controlled below 20%;

[0021] (6) Dry it in air again, and control the moisture regain to 8%±0.5%, to obtain waste cotton gauze;

[0022] (7) Cut off the waste cotton gauze, the cutting length is 38±1mm;

[0023] (8) Opening, the feeding quantity is 200 grams per meter, and the speed of the opening needl...

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Abstract

The invention relates to a method for extracting cotton fibers from waste elastic cotton gauze, which comprises the following steps: (1) wetting waste elastic gauze at room temperature; (2) rinsing; (3) stewing at high pressure and high temperature; (4) rinsing again, and removing spandex; (5) dewatering; (6) airing; (7) cutting off the waste cotton gauze; (8) opening; and (9) carding to obtain cotton fibers. By extracting cotton fibers from waste elastic cotton gauze, environmental pollution is reduced and waste cotton fibers are changed into useful materials, thereby having great economical efficiency and social benefits.

Description

Technical field: [0001] The invention relates to a method for extracting fibers from waste materials, in particular to a method for extracting cotton fibers from waste cotton elastic gauze. Background technique: [0002] Cotton elastic gauze is spun into cotton elastic yarn by adding spandex elastic yarn in the warp process, and made into pure cotton elastic cloth. A certain amount of waste is inevitably produced in the production process. Since the waste contains about 3% spandex yarn, Therefore, this kind of waste cotton elastic gauze cannot be reused and processed, which will inevitably cause the waste cotton elastic gauze to be difficult to be effectively utilized. If the waste cotton elastic gauze is not handled properly, it will cause environmental pollution. Therefore, cotton fibers are extracted from waste cotton elastic gauze The technology can make textile waste be effectively recycled and comprehensively utilized to make up for the shortage of textile cotton f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01G11/00D01G11/04
CPCY02W30/66
Inventor 徐的来陈君彪
Owner TONGLING DELILAI SPINNING
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