Old clothes recovery method

A clothing and cotton technology, which is applied in the field of old clothing recycling, achieves the effects of being convenient for popularization and application, environmental protection and resource regeneration, and easy process operation.

Inactive Publication Date: 2012-09-12
GUANGDONG JUYANG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no report on the use of recycled

Method used

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Embodiment Construction

[0008] A method for recycling old clothes, using old cotton clothes as raw materials to make cotton pulp, treating with caustic soda and carbon disulfide to obtain orange-yellow cellulose xanthate sodium, which is then dissolved in dilute sodium hydroxide solution to become Viscose viscose is filtered and matured, and placed at 38 degrees for 20 hours. After degassing, it is wet-spun. The coagulation liquid is composed of sulfuric acid, sodium sulfate and zinc sulfate; cellulose xanthogen in viscose Sodium nitrite reacts with sulfuric acid in the coagulation solution to decompose, cellulose is regenerated and precipitated, and the obtained cellulose fiber becomes viscose fiber after washing, desulfurization, bleaching and drying.

[0009] Viscose fiber is also called rayon, ice silk, and viscose filament. It has the characteristics of breathability, antistatic, and brilliant dyeing. Viscose fiber is a regenerated cellulose fiber. It is made of natural cellulose as raw materi...

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PUM

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Abstract

The invention relates to an old clothes recovery method, which comprises the following steps of: using old cotton clothes as a raw material to prepare cotton pulp, processing by the use of caustic soda and carbon disulfide to obtain orange sodium cellulose xanthate, dissolving in a dilute sodium hydroxide solution to form viscous viscose glue, filtering and maturating viscose glue, standing at 38 DEG C for 20h, followed by deaeration, carrying out wet spinning, adding a solidification liquid which is composed of sulfuric acid, sodium sulphate and zinc sulfate, letting sodium cellulose xanthate in viscose glue react with sulfuric acid in the solidification liquid for decomposition, regenerating cellulose and precipitating, washing, desulphurizing, bleaching and drying cellulose fiber to form viscose fiber. By the utilization of the old clothes recovery method for preparation of viscose fiber, viscose fiber is woven into various mat products, thus changing waste into valuables. The technology provided by the invention is easy to operate and is convenient for popularization and utilization.

Description

technical field [0001] The invention relates to a method for recycling old clothes. Background technique [0002] With the improvement of living standards, clothes that were previously used to keep out the cold have become necessary for modern people to show their individuality and decorate their appearance. The cloth of clothing is made of various fibers. Fiber is a tough yet elastic substance. There are many types of fibers, both natural and synthetic. Natural ones such as cotton fiber, hemp fiber, wool fiber and so on. There are two types of chemical fibers: one is fibers recreated on the basis of natural fibers, called man-made fibers or reprocessed fibers. For example, artificial cotton is a kind of artificial fiber. This fiber actually comes from natural animal and plant fibers, but they are "defective products" in natural fibers. This kind of fiber is relatively short, only half the length of normal fiber, and cannot be directly It is used for weaving and needs to...

Claims

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Application Information

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IPC IPC(8): D01F2/06
Inventor 林春涛
Owner GUANGDONG JUYANG ENVIRONMENTAL PROTECTION TECH
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