CN101709541A - Method for bleaching hair - Google Patents
Method for bleaching hair Download PDFInfo
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- CN101709541A CN101709541A CN200910228216A CN200910228216A CN101709541A CN 101709541 A CN101709541 A CN 101709541A CN 200910228216 A CN200910228216 A CN 200910228216A CN 200910228216 A CN200910228216 A CN 200910228216A CN 101709541 A CN101709541 A CN 101709541A
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- hair
- bleaching
- thiourea dioxide
- sodium carbonate
- sodium bicarbonate
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Abstract
The invention relates to a method for bleaching hair. The method is characterized by comprising the following steps of: treating colored hair at a low-temperature area for certain time by using alkali solution containing thiourea dioxide to obtain the hair with off-white ground color; adjusting the pH value of the thiourea dioxide solution by using sodium bicarbonate and sodium carbonate; and adjusting the pH value of a bleaching solution to 8-10; wherein the concentration of the thiourea dioxide contained in the bleaching solution is 2-3 g/L, the temperature of the bleaching method is 40-60 DEG C and the heat preservation time lasts for 1-2 hours. By adopting the bleaching method, the bleached hair has lighter residual ground color, higher breaking tenacity, low injury tolerance, excellent handfeel and luster.
Description
Technical field
The present invention relates to a kind of method for bleaching, particularly relate to a kind of method that is used for bleaching hair.
Background technology
Wig is the protein fibre that has color mostly, therefore will dye to protein fibre.The hair quality of the hair of different people and color are all not exclusively the same, guarantee different hairs color and luster unanimity with a collection of dyeing the time, just must handle hair, make the preceding hair background color basically identical that dyes, and just can dye then and reach the appointment requirement.
Generally, the color of coloured hair has two types: 1, hair Natural color (as Asian black hair, European golden yellow hair or the like); 2, the hair (of process dyeing such as the baked Huang of the baked Hong, of baked Hei, etc.).No matter the hair of the sort of type all must be bleached processing, it is just passable if self-colored hair needs only when bleaching with hydrogen peroxide, and when dyeing, mostly use dyeing such as ACID DYES, premetallized dye or oxidation dye to form through the hair after the dyeing, wherein to be difficult to bleaching clean for premetallized dye and oxidation dye, finally can the golden yellow background color of a residual part on hair.And emphasize that excessively bleaching effect can damage hair quality, influence feel and gloss, also fracture easily.
Current increasing to the demand of wig in the world, more and more higher to the quality and the vividness requirement of wig.The damage that background color is more shallow, fracture strength is higher, hair is subjected to of the hair after this just needs to bleach still less.
Summary of the invention
The technical problem to be solved in the present invention is, adopts a kind of new method for bleaching hair, make hair background color after the bleaching be rice white and damaged degree less than 5%, under the very shallow situation of background color, have good hand feeling and good color and luster.
The technical scheme that the present invention takes is:
A kind of method for bleaching hair comprises that bleaching liquor soaks, stirs steps such as intensification, insulation, water flushing, and it is characterized in that: bleaching liquor adopts the alkaline solution that contains thiourea dioxide, stirs and is warming up to 40-80 ℃, and be incubated 1-3 hour.
The pH value of wherein said bleaching liquor is 8-10; Described alkaline solution is the mixed solution of sodium carbonate and sodium bicarbonate, and the total concentration of sodium carbonate and sodium bicarbonate is 2-8g/L, and wherein the weight ratio of sodium carbonate and sodium bicarbonate is (0.1-1.5): 1.
The concentration of described thiourea dioxide is 1-10g/L, and optium concentration is 2-3g/L.
Further the technical scheme of optimizing is that the bath raio of hair and bleaching liquor is 1: (15-25), optimal proportion is 1: 20, stirs and is warming up to 50-60 ℃, and temperature retention time is 1-2 hour.
Particularly, method for bleaching hair of the present invention comprises the steps:
Thiourea dioxide, sodium carbonate and sodium bicarbonate are made into the aqueous solution, and wherein the concentration of thiourea dioxide is 1-10g/L, and the concentration of sodium carbonate and sodium bicarbonate is that (wherein the weight ratio of sodium carbonate and sodium bicarbonate is (0.1-1.5) to 2-8g/L: 1).(bath raio 1: 15-25), stir and be warming up to 40-80 ℃, be incubated 1-3 hour, the water flushing can obtain cream-coloured hair only then to put into the hair that needs processing in the bleaching liquor for preparing.
In method for bleaching hair, thiourea dioxide cannot use very few or excessive, if the thiourea dioxide consumption has lacked the reduction bleaching effect, if excessive then serious to hair damages, its optimum amount is 2-3g/L; The too high hair damages of the pH value of bleaching liquor is serious, and pH value is crossed the low bleaching effect that reduces, and best pH value is 8-10; Temperature is preferably in 50-60 ℃, and the high hair damages of temperature increases, and the low bleaching effect of temperature reduces; Temperature retention time is preferably in 1-2h, and the time becomes mildewed and sends out the damage increase, and the time, short bleaching effect reduced.
Use the present invention that hair is bleached, good more many than the bleaching effect of existing other method for bleaching, as remain in that background color on the hair is more shallow, fracture strength damage higher, that hair the is subjected to feel littler, hair of the hair that obtains is better, glossy.
The specific embodiment
By the following examples technical scheme of the present invention is further made an explanation, but protection scope of the present invention is not formed any restriction.
Embodiment 1:
Thiourea dioxide, sodium carbonate and sodium bicarbonate are made into the aqueous solution, wherein the concentration of thiourea dioxide is 2.5g/L, the concentration of sodium carbonate and sodium bicarbonate is 5g/L (wherein the weight ratio of sodium carbonate and sodium bicarbonate is 0.8: 1), in the bleaching liquor for preparing, put into the hair (bath raio 1: 20) that needs processing, stirring was warming up to 55 ℃, insulation 1.5 hours, and water flushing can obtain injury tolerance only less than 5% cream-coloured hair then.
Embodiment 2:
Thiourea dioxide, sodium carbonate and sodium bicarbonate are made into the aqueous solution, wherein the concentration of thiourea dioxide is 3g/L, the concentration of sodium carbonate and sodium bicarbonate is 7g/L (wherein the weight ratio of sodium carbonate and sodium bicarbonate is 1.2: 1), in the bleaching liquor for preparing, put into the hair (bath raio 1: 18) that needs processing, stirring was warming up to 50 ℃, insulation 1.2 hours, and water flushing can obtain injury tolerance only less than 5% cream-coloured hair then.
Embodiment 3:
Thiourea dioxide, sodium carbonate and sodium bicarbonate are made into the aqueous solution, wherein the concentration of thiourea dioxide is 5g/L, the concentration of sodium carbonate and sodium bicarbonate is 4g/L (wherein the weight ratio of sodium carbonate and sodium bicarbonate is 0.5: 1), in the bleaching liquor for preparing, put into the hair (bath raio 1: 22) that needs processing, stirring was warming up to 48 ℃, insulation 2 hours, and water flushing can obtain injury tolerance only less than 5% cream-coloured hair then.
More than each embodiment sodium carbonate and the sodium bicarbonate that adopt also can substitute with other similar alkaline matters.
The comparative example 1:
According to formaldehyde sodium sulfoxylate 10-20g/L, potash 5-8g/L, wiring solution-forming is put into the hair that needs processing, stirs to be warming up to 60-80 ℃, insulation 30-50min, and back water flushing can obtain light yellow hair only.
The comparative example 2:
According to tartar emetic acid 5-10g/L, frerrous chloride 2-5g/L wiring solution-forming in cold water, immerse the hair that needs processing, 30min is soaked in insulation, evenly add concentration again and be 30% hydrogen peroxide, after hydrogen peroxide concentration reaches 50-100mL/L, be warming up to 40-50 ℃ and be incubated 1-3 hour, (needing often to stir the even of maintenance auxiliary agent in the insulating process) back water washes down, and can obtain the hair of light brown.
The comparative example 3:
According to sodium thiosulfate 5-10g/L, sodium carbonate 5-8g/L puts into the hair that needs processing behind the wiring solution-forming, stirs to be warming up to 60-80 ℃, insulation 30-50min, and back water flushing can obtain light yellow hair only.
Embodiment 1,2,3 compares with comparative example 1,2,3, adopts that the residual background color of hair after the method for bleaching of the present invention bleaching is more shallow, fracture strength is higher, the damaged degree is littler, feel hair is good, glossy.
The method that the present invention adopts also can be used for the bleaching of other protein fibres such as animal hair, can reach same bleaching effect.
Claims (8)
1. a method for bleaching hair comprises that bleaching liquor soaks, stirs intensification, insulation, water rinsing step, and it is characterized in that: bleaching liquor is the alkaline solution of thiourea dioxide, stirs and is warming up to 40-60 ℃, and be incubated 1-3 hour.
2. method for bleaching hair according to claim 1 is characterized in that: the pH value of described bleaching liquor is 8-10.
3. method for bleaching hair according to claim 2, it is characterized in that: described alkaline solution is the mixed solution of sodium carbonate and sodium bicarbonate, the total concentration of sodium carbonate and sodium bicarbonate is 2-8g/L, and wherein the weight ratio of sodium carbonate and sodium bicarbonate is 0.1-1.5: 1.
4. method for bleaching hair according to claim 1 is characterized in that: the concentration of described thiourea dioxide is 1-10g/L.
5. method for bleaching hair according to claim 4 is characterized in that: the concentration of described thiourea dioxide is 2-3g/L.
6. according to any described method for bleaching hair of claim 1 to 5, it is characterized in that: stir and be warming up to 50-60 ℃, temperature retention time is 1-2 hour.
7. according to any described method for bleaching hair of claim 1 to 5, it is characterized in that: the bath raio of hair and bleaching liquor is 1: 15-25.
8. method for bleaching hair according to claim 6 is characterized in that: the bath raio of hair and bleaching liquor is 1: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910228216A CN101709541A (en) | 2009-11-16 | 2009-11-16 | Method for bleaching hair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910228216A CN101709541A (en) | 2009-11-16 | 2009-11-16 | Method for bleaching hair |
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|---|---|
| CN101709541A true CN101709541A (en) | 2010-05-19 |
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| CN200910228216A Pending CN101709541A (en) | 2009-11-16 | 2009-11-16 | Method for bleaching hair |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071567A (en) * | 2010-12-21 | 2011-05-25 | 东华大学 | Method for bleaching human hair fibers at low temperature with low damage |
| CN105177982A (en) * | 2015-10-15 | 2015-12-23 | 绍兴文理学院 | Black hair bleaching method |
| CN106263465A (en) * | 2015-05-18 | 2017-01-04 | 安徽金瑞祥发制品有限公司 | A kind of hair fades process technique |
| CN107156975A (en) * | 2017-06-23 | 2017-09-15 | 山东理工大学 | The method of melanin in biological fermentation process removing human hair fiber |
| CN107173896A (en) * | 2017-06-23 | 2017-09-19 | 山东理工大学 | The biological decolouring technique of Yangization Fa treatment oil dyeing human hair fibers |
| GB2565615A (en) * | 2017-03-15 | 2019-02-20 | Henkel Ag & Co Kgaa | Agent for decolorizing dyed keratinous fibers |
-
2009
- 2009-11-16 CN CN200910228216A patent/CN101709541A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071567A (en) * | 2010-12-21 | 2011-05-25 | 东华大学 | Method for bleaching human hair fibers at low temperature with low damage |
| CN102071567B (en) * | 2010-12-21 | 2012-06-13 | 东华大学 | Method for bleaching human hair fibers at low temperature with low damage |
| CN106263465A (en) * | 2015-05-18 | 2017-01-04 | 安徽金瑞祥发制品有限公司 | A kind of hair fades process technique |
| CN105177982A (en) * | 2015-10-15 | 2015-12-23 | 绍兴文理学院 | Black hair bleaching method |
| GB2565615A (en) * | 2017-03-15 | 2019-02-20 | Henkel Ag & Co Kgaa | Agent for decolorizing dyed keratinous fibers |
| GB2565615B (en) * | 2017-03-15 | 2022-05-11 | Henkel Ag & Co Kgaa | Agent for decolorizing dyed keratinous fibers |
| CN107156975A (en) * | 2017-06-23 | 2017-09-15 | 山东理工大学 | The method of melanin in biological fermentation process removing human hair fiber |
| CN107173896A (en) * | 2017-06-23 | 2017-09-19 | 山东理工大学 | The biological decolouring technique of Yangization Fa treatment oil dyeing human hair fibers |
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Open date: 20100519 |