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A method of bleaching black hair

A technology for black hair and natural pigments, applied in the field of bleaching black hair with combined treatment of potassium persulfate and methiosulfinic acid, it can solve problems such as rough hair, fiber damage, severe conditions, etc. The effect of less damage to hair and high retention rate of strength

Inactive Publication Date: 2017-10-17
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional bleaching process mainly uses hydrogen peroxide for treatment, the conditions are relatively severe, the fiber damage is serious, the damaged hair feels rough, and the strength decreases

Method used

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  • A method of bleaching black hair
  • A method of bleaching black hair

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The combined treatment of potassium persulfate and methiosulfinic acid is used to bleach black hair as follows:

[0022] (1) The dosage of potassium persulfate is 5% owf, sulfuric acid 1%, and the bath ratio is 1:50. Prepare the treatment solution. At a temperature of 40°C, immerse the black hair in the treatment solution for 60 minutes and wash it with water.

[0023] (2) Then use 8% methiosulfinic acid, 4% sodium tripolyphosphate, bath ratio 1:50, and at a temperature of 60°C, soak the black hair in the treatment solution for 2 hours, wash with water, and dry. The results are shown in Table 1.

[0024] Table 1. Performance comparison between untreated hair and bleached hair.

[0025]

Embodiment 2

[0027] Black hair was bleached with potassium persulfate treatment alone as follows:

[0028] The dosage of potassium persulfate is 5% owf, 1% sulfuric acid, and the bath ratio is 1:50. Prepare the treatment solution. At a temperature of 40°C, immerse the black hair in the treatment solution for 60 minutes and wash it with water. The results are shown in Table 2.

[0029] Table 2. Performance comparison between untreated hair and bleached hair.

[0030]

Embodiment 3

[0032] Black hair was bleached with mesinic acid treatment alone as follows:

[0033] 8% mesinic acid, 4% sodium tripolyphosphate, bath ratio 1:50, at a temperature of 60°C, soak the black hair in the treatment solution for 2 hours, wash with water, and dry. The results are shown in Table 3.

[0034] Table 3. Performance comparison between untreated hair and bleached hair.

[0035] sample

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Abstract

The invention discloses a method for bleaching black hair. The higher reduction potential of sulfinic acid can restore the natural pigment in black hair, and further bleach the black hair, so as to obtain better decolorization effect and maintain better strength.

Description

Technical field: [0001] The invention relates to a method for bleaching black hair, in particular to a method for bleaching black hair by combined treatment with potassium persulfate and methiosulfinic acid. Background technique: [0002] Wigs are known as "fashion on the head". As an export product with high added value, it was started by Jews in Germany in the early 19th century, and then gradually transferred to Korea, Japan, Hong Kong and Taiwan. After the reform and opening up, the country has undertaken the industrial transfer of South Korea in batches. Wig manufacturers once made a living on OEM and imitation. At present, my country has become the largest wig production and exporter in the world, and more and more wig export companies are involved. to compete in overseas markets. As the demand for wigs in the overseas market changes faster and faster, and the market competition is becoming more and more intense, wig companies, especially export-oriented companies, nee...

Claims

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Application Information

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IPC IPC(8): D06L4/13D06L4/30D06L4/70D06L4/00
Inventor 刘艳春王丹白刚朱梦雪
Owner SHAOXING UNIVERSITY
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