De-coloring method of cotton

A cotton and enzyme washing technology, applied in the field of decolorization of plush, can solve the problems of low production efficiency, long decolorization time, and many washing times, and achieve the effects of low cost and short decolorization time.

Inactive Publication Date: 2017-05-31
WUXI BENNIU BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently on the market, many cotton cold decolorization technologies are used. The disadvantage is that the decolorization time is long, nearly 48 hours, the production efficiency is low, and the cotton scales are damaged after decolorization, which is time-consuming and laborious.
There is also the use of thermal decolorization technology, the average decolorization time is 7 to 9 hours, and many problems with thermal decolorization technology are: large amount of ferrous salt, many times of washing, some washing times as many as 5 to 7 times, waste of water, Time-consuming, unclean ferrous ions excessively oxidize cotton fibers during oxygen bleaching, which not only wastes hydrogen peroxide, but also causes great cotton damage, high weight loss, low whiteness, and low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The invention provides a kind of cotton decolorization method, concrete steps are as follows:

[0015] (1) Cotton is evacuated and fluffy, sprinkles pre-wash solution while stirring, and cotton humidity reaches 40%; Described pre-wash solution is: 10 parts of 30% hydrochloric acid solution; 5 parts of 5% organic phosphonic acid solution; 8% chlorine 5 parts of sodium chloride solution; 50 parts of water;

[0016] (2) Enzyme washing: add the prewashed cotton to the enzyme lotion, subject to the submerged cotton; the enzyme lotion is: 10 parts of sericinase; 10 parts of nonionic lotion; 10 parts of caustic soda; 80 parts of water part; soak at room temperature for 2 hours;

[0017] (3) After washing, put it into the oxygen bleaching agent, subject to submerging the cotton; the oxygen bleaching agent is: 3 parts of oxygen bleaching stabilizer, 10 parts of hydrogen peroxide, and 80 parts of water;

[0018] (4) Dry after repeated washing.

Embodiment 2

[0020] The invention provides a kind of cotton decolorization method, concrete steps are as follows:

[0021] (1) Cotton is evacuated and fluffy, sprinkles pre-wash liquid while stirring, makes cotton humidity reach 60%; Described pre-wash agent is: 20 parts of 30% hydrochloric acid solution; 10 parts of 5% organic phosphonic acid solution; 8% chlorine 10 parts of sodium chloride solution; 50 to 80 parts of water;

[0022] (2) Enzyme washing: add the prewashed cotton to the enzyme lotion, subject to the submerged cotton; the enzyme lotion is: 20 parts of sericinase; 20 parts of nonionic lotion; 20 parts of caustic soda; 100 parts of water parts; soak at room temperature for 3 hours;

[0023] (3) After washing, put it into the oxygen bleaching agent, subject to submerging the cotton; the oxygen bleaching agent is: 5 parts of oxygen bleaching stabilizer, 20 parts of hydrogen peroxide, and 100 parts of water;

[0024] (4) Dry after repeated washing.

Embodiment 3

[0026] The invention provides a kind of cotton decolorization method, concrete steps are as follows:

[0027] (1) Cotton is evacuated and fluffy, sprinkles pre-wash liquid while stirring, makes cotton humidity reach 50%; Described pre-wash liquid is: 15 parts of 30% hydrochloric acid solutions; 8 parts of 5% organic phosphonic acid solutions; 8% chlorine 8 parts of sodium chloride solution; 60 parts of water;

[0028] (2) Enzyme washing: add the pre-washed cotton to the enzyme lotion, subject to submerged cotton; the enzyme lotion is: 15 parts of sericinase; 15 parts of nonionic lotion; 15 parts of caustic soda; 90 parts of water parts; soak at room temperature for 3 hours;

[0029] (3) After washing, put it into the oxygen bleaching agent, subject to submerging the cotton; the oxygen bleaching agent is: 4 parts of oxygen bleaching stabilizer, 15 parts of hydrogen peroxide, and 90 parts of water;

[0030] (4) Dry after repeated washing.

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PUM

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Abstract

The invention provides a de-coloring method of cotton. The de-coloring method comprises the specific steps: (1) loosening the cotton; stirring and scattering a pre-washing solution until the moisture of the cotton reaches 40 percent to 60 percent, wherein a pre-washing agent is prepared from 10 to 20 parts of 30 percent hydrochloric acid solution, 5 to 10 parts of 5 percent organic phosphonic acid solution, 5 to 10 parts of 8 percent sodium chloride solution and 50 to 80 parts of water; (2) washing with an enzyme: adding the pre-washed cotton into an enzyme washing agent, wherein the enzyme washing agent is prepared from 10 to 20 parts of mercerized proteinase, 10 to 20 parts of a non-ionic washing agent, 10 to 20 parts of a caustic soda flake and 80 to 100 parts of water; immersing at room temperature for 2 to 3 hours; (3) after washing with water, adding into an oxygen bleaching agent, wherein the oxygen bleaching agent is prepared from 3 to 5 parts of an oxygen bleaching stabilizer, 10 to 20 parts of hydrogen peroxide and 80 to 100 parts of water; (4) washing with the water for a plurality of times and drying. The de-coloring method of the cotton is short in period, high in efficiency and low in cost; the treated cotton has good whiteness, less weight loss, small strength loss and good hand feeling and is easy to spin and weave.

Description

technical field [0001] The invention relates to the technical field of hair decolorization, in particular to a cotton decolorization method. Background technique [0002] Currently on the market, many cotton cold decolorization technologies are used. The disadvantage is that the decolorization time is long, nearly 48 hours, the production efficiency is low, and the cotton scales are damaged after decolorization, which is time-consuming and laborious. There is also the use of thermal decolorization technology, the average decolorization time is 7 to 9 hours, and many problems with thermal decolorization technology are: large amount of ferrous salt, many times of washing, some washing times as many as 5 to 7 times, waste of water, Time-consuming, unclean ferrous ions excessively oxidize cotton fibers during oxygen bleaching, which not only wastes hydrogen peroxide, but also causes large cotton damage, high weight loss, low whiteness, and low efficiency. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L4/13D06L4/12D06M11/13D06M13/288D06M16/00D06M11/38D06M101/06
CPCD06M11/13D06M11/38D06M13/288D06M16/003D06M2101/06D06M2200/50
Inventor 唐珩
Owner WUXI BENNIU BIOTECH CO LTD
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