Decoloring method of natural colored animal fibers

An animal fiber and colored technology, which is applied in the field of decolorization of natural colored animal fibers, can solve the problems of reducing animal fiber quality and animal fiber damage, and achieve the effects of protecting animal fibers, improving quality, and reducing the degree of bonding

Inactive Publication Date: 2015-11-18
NINGXIA RONGCHANG CASHMERE IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong oxidation effect of the existing decolorization methods, the decolorized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] A kind of decolorization method of natural colored animal fiber, comprises the following steps:

[0026] A. Pretreatment

[0027] Put the animal fiber into the pretreatment liquid and stir for 3 hours. The pretreatment liquid includes the following components:

[0028] 12wt% degreasing agent, 4.5wt% sodium bicarbonate, 6wt% dimethyl sulfoxide, 0.4wt% 2,4-dihydroxy-N-(2-hydroxyethyl) benzamide, 3.8wt% 2-chloro-5-nitroacetophenone, 21wt% ethanol, and the balance is water;

[0029] B. The first decolorization

[0030] Put the pretreated animal fiber into the first decolorization treatment solution and let it stand for 12 hours. The first decolorization treatment solution includes the following components:

[0031] 4.5wt% of hydrogen peroxide, 13wt% of sodium chloride, 2.8wt% of (S)-4-phenyl-2-hydroxybutyrate ethyl ester, 5.5wt% of 4-ethylphenylphosphodiphenol, 0.8wt% 3-aminophthalic acid, 4wt% lauroyl chloride, 7wt% acetone, and the balance is water;

[0032] C. Rinse...

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PUM

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Abstract

The invention discloses a decoloring method of natural colored animal fibers. The method comprises the following steps: 1, preprocessing; 2, carrying out first decoloring; 3, rinsing; 4, carrying out second decoloring; 5, carrying out third decoloring; and 6, carrying out air drying treatment. The method overcomes disadvantages of the prior art, and reduces damages of the decoloring process to the animal fibers.

Description

technical field [0001] The invention relates to the technical field of animal fiber processing, in particular to a method for decolorizing natural colored animal fibers. Background technique [0002] Animal fiber has the characteristics of soft texture, good thermal insulation and strong durability, and belongs to high-grade textile materials. However, since some animal fibers are colored, when it is necessary to obtain colorless fibers, it must be decolorized. Due to strong oxidation in the existing decolorization methods, the decolorized animal fibers will be strongly damaged and the quality of the animal fibers will be reduced. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for decolorizing natural colored animal fibers, which can solve the deficiencies of the prior art and reduce the damage to animal fibers during the decolorization process. [0004] In order to solve the above technical problems,...

Claims

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Application Information

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IPC IPC(8): D06L3/16D06L3/02D06L3/06D06L3/00D06L3/08D06M11/76D06M13/415D06M13/12D06M13/268D06M101/10D06L4/00D06L4/12D06L4/13D06L4/21D06L4/23
Inventor 李华郭永平
Owner NINGXIA RONGCHANG CASHMERE IND GROUP
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