KR100366757B1 - Permanent hair colorant without irritating to sensitive skin - Google Patents

Abstract

The present invention relates to a permanent hair dye that does not cause a skin allergic reaction, and more particularly, a dye selected from direct dyes (tar dyes), nitro dyes, and natural dyes is contained, and at the same time, the dye is added to the cortex layer of the hair. The penetration of dye into hair without causing skin allergic reactions by containing an alkaline agent that swells the cortical layer so as to penetrate deeply and ionically bond to the carboxyl group of the hair protein amino acids and persulfate that accelerates the production of free carboxyl groups The present invention relates to a permanent dyeing agent of a new composition that is easy and has excellent dyeing sustainability.

Description

Permanent hair colorant without irritating skin {Permanent hair colorant without irritating to sensitive skin}

The present invention relates to a permanent hair dye that does not cause a skin allergic reaction, and more particularly, a dye selected from direct dyes (tar dyes), nitro dyes, and natural dyes is contained, and at the same time, the dye is added to the cortex layer of the hair. The penetration of dye into hair without causing skin allergic reactions by containing an alkaline agent that swells the cortical layer so as to penetrate deeply and ionically bond to the carboxyl group of the hair protein amino acids and persulfate that accelerates the production of free carboxyl groups The present invention relates to a permanent dyeing agent of a new composition that is easy and has excellent dyeing sustainability.

Hair dyes (dyes for dyeing) are largely based on the mechanism by which they are dyed. (1) Epidermal hair dyes in the cortex, ② Hair dyes in the cortex and some cortex, ③ Complete water quality. (Cortex) are classified into hair dyes. Also, depending on the duration of dyeing of hair dye, it can be classified into ① Temporary Hair Color, ② Semipermanent Hair Color, and ③ Permanent Hair Color.

[Types of hair dye and the mechanism of hair dye]

[Effect of Hair Dye on Hair]

Temporary Hair Color is temporary (about 2 to 3 days) because it is dyed to the outermost layer of hair cortex. Semi-permanent hair color is called 'acid dye' because of its high dyeing power in the acidic pH range, and it lasts about 15 days because the dye penetrates and dyes into the cortex and some water layers. There is a disadvantage that can not be dyed. In addition, the permanent hair color (Permanant Hair Color) is also referred to as the 'alkali hair dye' because of the high dyeing power in the alkaline pH range, also called 'Oxidation Hair Color' because it is dyed by the dye produced by oxidation polymerization. It is called. Permanent hair dye has been pointed out another problem causing damage to the hair or skin allergic reactions, despite the excellent advantages that the dyeing period is longer than the temporary hair dye or semi-permanent hair dye can be dyed in a variety of colors.

The conventional permanent hair dye (oxidative hair dye) is used to mix the first agent containing an oxidizing dye and an alkali agent such as ammonia, and the second agent using hydrogen peroxide. Oxidative hair dyes dye the hair by decolorizing the hair and penetrating the oxidizing dye, which has high alkalinity, such as pH 9-10, and thus damages the hair after use. As a dye, o- or p-phenylenediamine or aminophenol is used. And because the use of the oxide dye precursor (Primary Intermediate), such as derivatives is to cause side effects such as skin allergy.

In other words, permanent hair dyes (oxidative hair dyes) have the advantage of being able to dye various colors and having excellent persistence of dyed colors, but have the decisive disadvantage of causing side effects such as skin allergy due to the use of oxidized dyes. There is an urgent need to develop permanent hair dyes with new compositions.

The present inventors have tried to develop a hair dye having a new composition, which allows rapid penetration of dyes and dyed colors for a long time and has no side effects such as skin allergy. As a result, instead of using primary dyes (Primary Intermediate) commonly used as dyes for permanent hair dyes, for example o- or p-phenylenediamine, aminophenols and derivatives thereof, they have been used directly in semipermanent hair dyes. In addition to the use of dyes (tar pigments), nitro dyes, and natural dyes, the selected dyes and persulfates allow the selected dyes to penetrate deep into the cortex of the hair and ionically bond to the carboxyl groups of the hair protein amino acids. This invention was completed by mix | blending and containing in a fixed composition.

Accordingly, an object of the present invention is to provide a permanent hair dye that allows the penetration of dyes rapidly and the dyed color is maintained for a long time, and in particular has no side effects such as skin allergy.

The present invention relates to a permanent hair dye comprising a first agent comprising a dye and an alkaline agent, and a second agent including an oxidizing agent, a chelate stabilizer, and a pH adjusting agent.

The first formulation includes 0.01 to 10.0% by weight of one or more dyes selected from direct dyes (tar pigments), nitro dyes, natural dyes, monoethanolamine, sodium hydroxide, sodium metasilicate, sodium carbonate, sodium silicate, sodium sulfate, and carbonic acid. 1.0 to 50.0% by weight of one or more alkaline agents in sodium hydrogen, magnesium carbonate, magnesium hydroxide, magnesium oxide, calcium oxide, magnesium silicate, and the like, and selected from ammonium persulfate, potassium persulfate, sodium persulfate, calcium persulfate, magnesium persulfate, etc. It is characterized by a permanent hair dye containing 1.0 to 70.0% by weight of persulfate.

Referring to the present invention in more detail as follows.

In the general permanent hair dye comprising a first agent containing a dye (oxidation type), an alkali agent and a surfactant, and a second agent containing an oxidizing agent, a chelate stabilizer, and a pH adjuster, the present invention relates to the first agent described above. The composition is characterized by. That is, in the present invention, instead of using an oxidative dye as the dye contained in the first agent, one or more types of direct dyes (tar pigments), nitro dyes, natural dyes, etc., which have been conventionally applied to semi-permanent hair dyes, are selected and used. In order to allow dyes to penetrate the hair quickly and deeply, it contains a specific alkali agent as a hair swelling agent and at the same time a direct dye (tar pigment), a nitro dye, and a natural dye form a strong ionic bond with the free carboxyl group in the hair to dye the color. Persulfate is contained in a certain ratio in order to have excellent sustainability. Thus, in the present invention, the dye is dyed by the mechanism of ion adsorption to the hair protein in the cuticle layer of the hair surface in the general semi-permanent hair dye using a direct dye (tar pigment), the dyeing duration was short as 15 days, in the present invention While using direct dyes (tar pigments), nitro dyes, and natural dyes, due to the proper combination of alkalis and persulfates, the dye penetrates deep into the cortex layer of the hair and is dyed by a mechanism that directly ionizes the hair protein. The dyeing persistence is markedly increased to 2 to 3 months, and in particular, the permanent hair dye of the present invention is excellent in that there is no fear of causing serious side effects such as skin allergy caused by the use of an oxidative dye.

The dye contained in the first agent of the dyeing hair dye according to the present invention is at least one selected from direct dyes (tar dyes), nitro dyes, natural dyes, and the like, and 0.01 to 10.0 wt% with respect to the total composition of the first agent. It is contained in a range. As a direct dye (tar color) to be used in the present invention, orange 205, red 213, yellow 406, red 106, green 3, green 201, blue 404, and the like can be used. May be used 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, Disperse Blue 1 and the like, as a natural dye may be used gardenia, yellow wall, safflower, henna and the like. In addition to the dyes described above, any dye can be used as long as it is usually a dye having the same effect. If the dye is contained in less than 0.01% by weight of the first agent, there is a problem in the hair dye effect, when it exceeds 10.0% by weight is not preferable because there is a problem of color loss when shampooing after hair dyeing and shampooing after that.

In the present invention, the above-mentioned dye contains an alkali agent as a swelling agent that can penetrate deeply into the cortex layer of the hair, so that the selected dye penetrates deep into the hair to form a strong bond with the free carboxyl group in the hair. This is to keep the dyed color for a long time. In order to achieve the object of the present invention, as an alkaline agent, monoethanolamine, sodium hydroxide, sodium metasilicate, sodium carbonate, sodium silicate, sodium sulfate, sodium hydrogen carbonate, magnesium carbonate, magnesium hydroxide, magnesium oxide, calcium oxide, magnesium silicate Use one or more selected from these. Alkaline agent is contained in the range of 1.0 to 50.0% by weight of the total composition constituting the first agent, if the content is less than 1.0% by weight of the dye is not easy to penetrate into the water layer of the dye and the persistence of the dyed color There is a problem that is lowered, if it exceeds 50.0% by weight can increase the hair dye effect, but there is another problem such as severe hair damage and scalp.

In addition, the present invention is characterized by containing a persulfate, which has not been used in conventional hair dyes, the slight breakdown of the hair protein by the persulfate to rapidly generate a free carboxyl group in the hair that can be combined with the dye. In the conventional hair dye technology, there is an example in which a free aino group and a free carboxyl group are generated by breaking the peptide group of the hair keratin protein by using various oxidizing or reducing agents, but using the persulfate salt as in the present invention. To generate a free amino group and a free carboxyl group have not been reported to date. The persulfate is one or more selected from ammonium persulfate, potassium persulfate, sodium persulfate, calcium persulfate, magnesium persulfate, and the like, and is contained in a range of 1.0 to 70.0% by weight based on the total composition of the first agent. If the content of persulfate is less than 1.0% by weight, the production of free carboxyl groups is low and the present invention cannot achieve the desired effect. If the amount of persulfate exceeds 70.0% by weight, the hair dye effect can be increased, but the hair is severely damaged and other problems such as stability of the product. There is.

In addition to the above-mentioned components, the first agent described above may contain other components, such as perfumes, surfactants, thickeners, hair protectants, chelating agents, pH adjusters, stabilizers, and disperse oils, which are commonly contained. .

On the other hand, the composition of the second agent constituting the hair dye of the present invention is only a conventional composition known in the art. The second agent includes 6.0 to 25.0 wt% of an oxidizing agent, 0.01 to 1.0 wt% of a chelating stabilizer, 0.1 to 1.0 wt% of a pH adjuster, and the like. The oxidant includes hydrogen peroxide, the chelate stabilizer includes E.D.T.A-2Na, ethitronic acid, and the like, and the pH adjuster includes phosphoric acid, dibasic sodium phosphate, salicylic acid, and the like. In addition to the composition components described above, other components usually contained, for example, fragrances, surfactants, thickeners, hair protectants, solvents, and the like, may be contained as the composition components of the second agent.

The present invention as described above will be described in more detail based on the following examples, but the present invention is not limited thereto.

Example 1 Hair Dye

Preparation of the first formulation:

Each of the first formulation (powder) raw materials shown below was ground to have a size of 60 Mesh or less. Each of the ground raw materials was put in a mixer, mixed uniformly, sprayed with fragrance and flow paraffin, mixed uniformly, and packed and packed in a packing unit.

First agent component (powder, granule type)

Ammonium persulfate (20.00 g), potassium persulfate (25.00 g), corn starch (30.00 g), EDTA-4Na (0.20 g), sodium metasilicate (10.00 g), sodium carbonate (6.00 g), bentonite (5.00 g ), Xanthan gum (0.30 g), sodium lauryl sulfate (1.00 g), liquid paraffin (1.10 g), fragrance (proral fl) (0.50 g), red-106 (tar pigment) (0.90 g)

Preparation of the second agent:

Among the second agent components (lotion) shown below, oil phase components (cetearyl alcohol, lanolin, ceteareth-20, dimethicone) were accurately weighed and dissolved in an oil phase dissolution tank at 80 ° C. The water component (purified water, phosphoric acid, dibasic sodium phosphate, salicylic acid, ethitronic acid, sodium lauryl sulfate) was accurately weighed and dissolved in an aqueous phase dissolution tank at 80 ° C. The oil phase part was put into the dissolved aqueous part and emulsified. The mixture was cooled to 45 ° C., added with hydrogen peroxide solution, mixed uniformly, filled with fragrance, and mixed uniformly.

Second agent component (solution, lotion, gel type)

35% hydrogen peroxide (17.00 g), cetearyl alcohol (2.00 g), lanolin (0.50 g), ceteareth-20 (0.20 g), dimethicone (0.50 g), phosphoric acid (0.60 g), dibasic sodium phosphate (1.20 g), salicylic acid (0.10 g), ethitronic acid (0.10 g), sodium lauryl sulfate (0.50 g), fragrance (proral fl) (0.50 g), purified water total amount (adjusted to 100 g)

To 1 g of the above-described first agent (powder), the second agent is mixed well just before use in a ratio of 3 ml (1: 3) and evenly applied to the hair. After 5 to 20 minutes, rinse well with lukewarm water and wash thoroughly with soap or shampoo. The dose is appropriately increased or decreased depending on the amount of hair.

Example 2:

Preparation of the first formulation:

Each of the first formulation (powder) raw materials shown below was ground to have a size of 60 Mesh or less. Each of the ground raw materials was put in a mixer, mixed uniformly, sprayed with fragrance and flow paraffin, mixed uniformly, and packed and packed in a packing unit.

First agent component (powder, granule type)

Ammonium persulfate (44.00 g), corn starch (30.00 g), EDTA-4Na (0.20 g), sodium metasilicate (10.00 g), magnesium oxide (6.00 g), bentonite (5.00 g), xanthan gum (0.30 g) Sodium Lauryl Sulfate (1.00 g), Ceramide (0.20 g), Grape Seed Powder (0.50 g), Liquid Paraffin (1.10 g), Flavor (Proral Flurry) (0.50 g), Gardenia Pigment (Natural) (0.90 g) ), Blue 404 (0.30 g)

Preparation of the second agent:

Among the second agent components (lotion) shown below, oil phase components (cetearyl alcohol, lanolin, ceteareth-20, dimethicone) were accurately weighed and dissolved in an oil phase dissolution tank at 80 ° C. The water component (purified water, phosphoric acid, dibasic sodium phosphate, salicylic acid, ethitronic acid, sodium lauryl sulfate) was accurately weighed and dissolved in an aqueous phase dissolution tank at 80 ° C. The oil phase part was put into the dissolved aqueous part and emulsified. The mixture was cooled to 45 ° C., added with hydrogen peroxide solution, mixed uniformly, filled with fragrance, and mixed uniformly.

Second Agent (Solution, Ryo Ocean, Gel Type)

35% hydrogen peroxide (17.00 g), cetearyl alcohol (2.00 g), lanolin (0.50 g), ceteareth-20 (0.20 g), dimethicone (0.50 g), phosphoric acid (0.60 g), dibasic sodium phosphate (1.20 g), salicylic acid (0.10 g), ethitronic acid (0.10 g), sodium lauryl sulfate (0.50 g), fragrance (proral fl) (0.50 g), purified water total amount (adjusted to 100 g)

To 1 g of the above-described first agent (powder), the second agent is mixed well just before use in a ratio of 3 ml (1: 3) and evenly applied to the hair. After 5 to 20 minutes, rinse well with lukewarm water and wash thoroughly with soap or shampoo. The dose is appropriately increased or decreased depending on the amount of hair.

Example 3

Preparation of the first formulation:

Each of the first formulation (powder) raw materials shown below was ground to have a size of 60 Mesh or less. Each of the ground raw materials was put in a mixer, mixed uniformly, sprayed with fragrance and flow paraffin, mixed uniformly, and packed and packed in a packing unit.

First agent component (powder, granule type)

Ammonium persulfate (20.00 g), potassium persulfate (20.00 g), sodium persulfate (5.00 g), corn starch (30.00 g), EDTA-4Na (0.20 g), sodium metasilicate (10.00 g), sodium carbonate (5.30 g), bentonite (5.00 g), xanthan gum (0.30 g), sodium lauryl sulfate (1.00 g), ceramide (0.20 g), grape seed powder (0.50 g), liquid paraffin (1.10 g), fragrance (proral fleur Lee) (0.50 g), Disperse Blue # 1 (nitro dye) (0.90 g)

Preparation of the second agent:

Among the second agent components (lotion) shown below, oil phase components (cetearyl alcohol, lanolin, ceteareth-20, dimethicone) were accurately weighed and dissolved in an oil phase dissolution tank at 80 ° C. The water component (purified water, phosphoric acid, dibasic sodium phosphate, salicylic acid, ethitronic acid, sodium lauryl sulfate) was accurately weighed and dissolved in an aqueous phase dissolution tank at 80 ° C. The oil phase part was put into the dissolved aqueous part and emulsified. The mixture was cooled to 45 ° C., added with hydrogen peroxide solution, mixed uniformly, filled with fragrance, and mixed uniformly.

Second Agent (Solution, Ryo Ocean, Gel Type)

35% hydrogen peroxide (17.00 g), cetearyl alcohol (2.00 g), lanolin (0.50 g), ceteareth-20 (0.20 g), dimethicone (0.50 g), phosphoric acid (0.60 g), dibasic sodium phosphate (1.20 g), salicylic acid (0.10 g), ethitronic acid (0.10 g), sodium lauryl sulfate (0.50 g), fragrance (proral fully) (0.50 g), purified water total amount (adjusted to 100 g total)

Preparation of Third Agents:

Each of the third preparation (Ryo Ocean) raw materials shown below was accurately weighed, placed in a dissolution tank, heated and dissolved at 60 ° C., mixed, cooled to 45 ° C., filled with incense, and uniformly mixed and packed in a packing unit.

Third agent (acid dye)

Hydroxyethyl cellulose (1.00 g), Polyquaternium-10 (0.20 g), propylene glycol (5.00 g), lactic acid (1.00 g), citric acid (1.00 g), urea (3.00 g), paraoxybenzoic acid ester ( 0.50 g), N-methylpyrrolidone (5.00 g), benzyl alcohol (10.00 g), orange # 205 (tar pigment) (0.50 g), red # 106 (tar pigment) (0.20 g), fragrance (pineapple) (0.30 g), the total amount of purified water (adjust so that the total amount is 100 g)

To 1 g of the above-described first agent (powder), the second agent is mixed well just before use in a ratio of 3 ml (1: 3) and evenly applied to the hair. After 5 to 20 minutes, rinse well with lukewarm water and wash thoroughly with soap or shampoo. The dose is appropriately increased or decreased depending on the amount of hair. If you want a more vivid color, apply the third agent evenly on the hair in the same way as above, apply evenly after 5-10 minutes, rinse well with lukewarm water after 5-10 minutes, and wash it off with soap or shampoo. The dose is appropriately increased or decreased depending on the amount of hair.

Example 4: Hair Dye

Preparation of the first formulation:

Each of the first formulation (powder) raw materials shown below was ground to have a size of 60 Mesh or less. Each of the ground raw materials was put in a mixer, mixed uniformly, sprayed with fragrance and flow paraffin, mixed uniformly, and packed and packed in a packing unit.

First agent component (powder, granule type)

Ammonium persulfate (6.00 g), potassium persulfate (44.00 g), corn starch (30.00 g), EDTA-4Na (0.20 g), monoethanolamine (3.50 g), sodium carbonate (6.00 g), bentonite (5.00 g) ), Xanthan gum (0.30 g), sodium lauryl sulfate (1.00 g), liquid paraffin (1.10 g), fragrance (proral fl) (0.50 g), tar color red -106 (0.90 g), orange -205 (1.50 g)

Preparation of the second agent:

Among the second agent components (lotion) shown below, oil phase components (cetearyl alcohol, lanolin, ceteareth-20, dimethicone) were accurately weighed and dissolved in an oil phase dissolution tank at 80 ° C. The water component (purified water, phosphoric acid, dibasic sodium phosphate, salicylic acid, ethitronic acid, sodium lauryl sulfate) was accurately weighed and dissolved in an aqueous phase dissolution tank at 80 ° C. The oil phase part was put into the dissolved aqueous part and emulsified. The mixture was cooled to 45 ° C., added with hydrogen peroxide solution, mixed uniformly, filled with fragrance, and mixed uniformly.

Second agent component (solution, lotion, gel type)

35% hydrogen peroxide (25.00 g), cetearyl alcohol (2.00 g), lanolin (0.50 g), ceteareth-20 (0.20 g), dimethicone (0.50 g), phosphoric acid (0.60 g), dibasic sodium phosphate (1.20 g), salicylic acid (0.10 g), ethitronic acid (0.10 g), sodium lauryl sulfate (0.50 g), fragrance (proral fl) (0.50 g), purified water total amount (adjusted to 100 g)

To 1 g of the above-described first agent (powder), the second agent is mixed well just before use in a ratio of 3 ml (1: 3) and evenly applied to the hair. After 5 to 20 minutes, rinse well with lukewarm water and wash thoroughly with soap or shampoo. The dose is appropriately increased or decreased depending on the amount of hair.

Experimental Example

For the permanent hair dye according to the present invention prepared in Examples 1 to 4 and commercially available hair dyes, the following experiment was performed, and the results are shown in Table 1 below.

(1) Skin allergy reaction experiment

Wash the skin around the inside of the arm or around the back of the ear with soap. Use test solution to make the test solution and apply it to the cleaned area with coin size and leave it for 5 to 20 minutes or 48 hours. Allergic reactions such as spots, red spots, black spots and swelling were observed. The test subjects were male and female in their 10s and 50s.

(2) Persistence Experiment of Dyeing

① Mix 1st agent and 2nd agent just before use and apply it to Swatch (2.5g, 10cm) (white hair, wool, 50% hair, human hair) for test at 25 ℃ After standing for 20 minutes, washed with lukewarm water, shampoo, rinse and dried. The test Swatch with the dye test was carried out by the following test method, and the tested Swatch was compared with the dye test Swatch.

30% SLES solution: 200 ml of 30% SLES solution (pH 8.50) was added to each of 5 500 ml beakers, and the dyeing test Swatch was washed in turn, rinsed with water, and dried.

10% shampoo solution: 10% shampoo solution (pH 8.50) was made in a sealed container, 200ml was put in a sealed container, and the dye test Swatch was immersed and stirred at 45 ° C for 24 hours, and then rinsed with water and dried.

Sweat solution: 0.5 g of L-cysteine hydrochloride (monohydrate), 0.5 g of sodium chloride, 5.0 g of sodium phosphate diphosphate (12 hydrate) with sodium hydroxide and purified water to adjust the pH of the solution to 11.0 so that the total volume of the solution is 1 l. Sweat solution was made. 200 ml of sweat solution was put in a sealed container, and the dyeing test Swatch was immersed, stirred at 38 ° C. for 24 hours, washed with water, and dried.

UV exposure: Dye test Swatch was exposed to UV light for 7 days.

② Depending on the usage, hair in teenage, 20's, 30's, 40's, and 50's men's and women's hairs are divided into centrifugal (half test) by dyeing the test solution and the control solution with dyeing method. A sustainability test was performed.

(3) brightness experiment

The first and second preparations were mixed just before use, and then applied to a test Swatch (2.5 g, 10 cm) (white hair, wool, 50% sachet, human hair) at 25 ° C. After standing for 20 minutes, they were washed with lukewarm water, shampooed, rinsed, and dried. The dyes were tested for comparison with solar lamps and artificial lights.

(4) Hair damage experiment

① The first agent and the second agent are mixed immediately before use, and then applied to a test Swatch (2.5 g, 10 cm) (white hair (wool), 50% sapling (human hair), black hair (human hair)) and 25 ° C. After leaving for 20 minutes, washed with lukewarm water, shampoo, rinse and dried. With hair dye test Swatch, hair samples were collected by the Sump method and observed under the microscope to observe the degree of damage of the cuticle layer.

② After the hair dye by half test, the relative combing was compared.

(5) hair dye test

Test white cloth (KSK 0905 dyeing fastness test attached white cloth, wool) and test Swatch (2.5 g, 10 cm) (white wool, 50% sachet, human hair) according to the usage and dosage Controls were tested and observed for comparison.

division Hair dye Example 1 Example 2 Example 3 Example 4 A product ^* B product ^** Skin allergic reaction none none none none many none Persistence of dyeing More than 2 months More than 2 months More than 2 months More than 2 months 1 to 2 months 15th brightness bright bright bright bright bright Not dyed to light color Ammonia odor none none none none Severe none Hair damage Weak damage Weak damage Weak damage damaged Severe damage No damage Dynamism Light color Light color Light color Light color Natural color Not dyed ^* Permanent hair dye, A company A product ^** Acid hair dye, B company B product

As described above, the permanent hair dye according to the present invention is a permanent hair dye having no excellent side effects such as skin allergy reactions and excellent coloration and brightness even after more than two months due to excellent pigmentation persistence.

Claims (1)

A permanent hair dye comprising a first agent comprising a dye and an alkaline agent, and a second agent including an oxidizing agent, a chelate stabilizer and a pH adjusting agent, The first formulation includes 0.01 to 10.0% by weight of at least one dye selected from direct dyes (tar pigments), nitro dyes and natural dyes, monoethanolamine, sodium hydroxide, sodium metasilicate, sodium carbonate, sodium silicate, sodium sulfate, and carbonic acid. 1.0 to 50.0% by weight of at least one alkali agent selected from sodium hydrogen, magnesium carbonate, magnesium hydroxide, magnesium oxide, calcium oxide and magnesium silicate, and in ammonium persulfate, potassium persulfate, sodium persulfate, calcium persulfate and magnesium persulfate Permanent hair dye, characterized in that containing 1.0 to 70.0% by weight of the selected persulfate.