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Method for descaling human hair by using human hair bleaching wastewater

A technology for waste water and pre-oxidation treatment, applied in fiber treatment, biochemical fiber treatment, chemical post-treatment of fibers, etc., can solve problems such as waste of resources, and achieve the effect of reducing emissions, realizing recycling, and reducing water consumption.

Active Publication Date: 2016-06-15
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the bleaching wastewater can no longer be recycled and used, and can only be treated in the wastewater treatment plant, resulting in a large waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Pre-oxidation treatment of human hair fibers: for bleaching wastewater with a mass content of 1.2% hydrogen peroxide, add 10 kg of human hair fibers for soaking, the soaking temperature is 30 ° C, and the soaking time is 20 minutes; add ammonia water to control pH during soaking =8. After soaking, turn on the water and take out the human hair fiber. Bath ratio is controlled at 1:20.

[0037] (2) Catalase treatment: add catalase aqueous solution to the human hair fiber after the pre-oxidation treatment obtained in step (1), stir at room temperature for 20 min, drain water, take out the human hair fiber, and wash once with cold water. Among them, the bath ratio is controlled at 1:25; the mass content of catalase TerminoxUltra50L in the catalase aqueous solution is 2%.

[0038] (3) Protease treatment: Dissolve serrapeptase and Aspergillus oryzae in water, then add the human hair fiber obtained in step (2) for soaking, the soaking temperature is 40°C, and the soaking ...

Embodiment 2

[0040] (1) Pre-oxidation treatment of human hair fiber: for the bleaching wastewater whose mass content of hydrogen peroxide is 0.05%, add 30% hydrogen peroxide to adjust the mass content of hydrogen peroxide to 0.5%, add 10kg of human hair fiber to soak , the soaking temperature is 40°C, and the soaking time is 30 minutes; during the soaking process, ammonia water is added to control the pH=8.5. After soaking, turn on the water and take out the human hair fiber. Bath ratio is controlled at 1:50.

[0041] (2) Catalase treatment: add catalase aqueous solution to the human hair fiber after the pre-oxidation treatment obtained in step (1), stir at room temperature for 30 min, drain water, take out the human hair fiber, and wash once with cold water. Among them, the bath ratio is controlled at 1:40; the mass content of catalase TerminoxUltra50L in the catalase aqueous solution is 0.1%.

[0042] (3) Protease treatment: dissolving ficin in water, then adding the human hair fiber o...

Embodiment 3

[0044] (1) Pre-oxidation treatment of human hair fibers: for bleaching waste water with a mass content of 5% hydrogen peroxide, dilute with water until the mass content of hydrogen peroxide is 4%, add 10kg of human hair fibers for soaking, and the soaking temperature is 20°C , soaking time is 10min; add ammonia water to control pH=7.5 during soaking. After soaking, turn on the water and take out the human hair fiber. Bath ratio is controlled at 1:10.

[0045](2) Catalase treatment: add catalase aqueous solution to the human hair fiber after the pre-oxidation treatment obtained in step (1), stir at room temperature for 10 min, drain water, take out the human hair fiber, and wash once with cold water. Among them, the bath ratio is controlled at 1:10; the mass content of catalase TerminoxUltra50L in the catalase aqueous solution is 5%.

[0046] (3) Protease treatment: Dissolve trypsin in water, then add the human hair fiber obtained in step (2) to soak, the soaking temperature ...

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Abstract

The invention belongs to the field of processing human hair products, and particularly relates to a method for performing human hair descaling treatment by utilizing human hair bleaching waste water. The method comprises the following steps: firstly, preoxidizing human hair fibers by using human hair bleaching waste water, then treating with catalase, and finally treating with protease. The recycling of bleaching waste water can be realized by adopting the human hair descaling treatment method; the limited damage to the scale layer of human hair fibers can be realized, and further the strength property of the fibers can be enhanced; the method is simple in technology and suitable for industry production.

Description

technical field [0001] The invention belongs to the processing field of human hair products, and in particular relates to a method for descaling human hair by using human hair bleaching wastewater. Background technique [0002] In the production process of human hair products, it is necessary to first destroy the surface scale layer-the peeling process, and then destroy the natural melanin in human hair by means of oxidation or reduction, and then produce human hair products with various colors and properties. However, the basic component of the human hair scale layer is hard keratin composed of various natural amino acids, which has high stability, good elasticity, and small expansion. It itself plays a very important role in protecting the cortical layer and melanin inside the human hair. For this reason, most of the traditional human hair product industries use chlorine-containing reagents to first descale human hair (acid descaling), so that the bleaching agent can penet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M16/00D01C3/00
CPCD01C3/00
Inventor 黄昊飞曲园园宋峰傅忠君
Owner SHANDONG UNIV OF TECH
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