JPH03258714A - Oxidation-type hair-dye - Google Patents

Abstract

PURPOSE:To obtain an oxidation-type hair-dye exhibiting excellent bleaching action to black hair and dyeing property to gray hair, having remarkably im proved gray-hair masking effect and causing little damage to hair by combining a 3rd agent containing a percarbonate or a perborate as an activator. CONSTITUTION:The objective oxidation-type hair-dye is composed of (A) the 1st agent containing 0.001-20wt.% of an oxidation dye composed of a precursor (e.g. p-phenylenediamine or p-aminophenol) and a coupler (e.g. resorcinol or m-aminophenol), (B) the 2nd agent containing 0.1-12wt.% (especially 1-6wt.%) of hydrogen peroxide and (C) the 3rd agent containing 1-100wt.% (especially 50-100wt.%) of an alkali metal, alkaline-earth metal or ammonium salt of percarbonic acid or perboric acid. The ratio of A:B is preferably 1:9 to 9:1 (especially 3:7 to 7:3) and that of (A+B):C is preferably 1000:1 to 6:4 (especially 100:1 to 3:1).

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an oxidized hair dye, and more particularly to an oxidized hair dye that has excellent gray hair concealing properties.

[Prior art and problems to be solved by the invention] Generally, oxidized hair dyes consist of a first part containing an oxidizing dye and a second part containing an oxidizing agent such as hydrogen peroxide.
When these first and second agents are mixed, the oxidative dye and the oxidizing agent react to develop color, and at the same time, melanin in the hair undergoes an oxidation reaction, resulting in decolorization. That is, black hair is dyed by undergoing both a dyeing reaction and a bleaching reaction, and gray hair is dyed by undergoing only a dyeing reaction, and the smaller the difference in color between the two, the higher the gray hair concealing ability.

In order to improve this ability to hide gray hair, it is important to improve the bleaching reaction of black hair. Conventionally, methods have been used for this purpose, such as: (1) increasing the mixing ratio of the second agent, (2) increasing the hydrogen peroxide concentration in the second agent, and (2) using a third agent that uses persulfate as an activator. There is. However, in method (2), the components (especially the oxidative dye) in the first agent are diluted, so in order to obtain the same effect, the concentration of the oxidative dye, etc. in the first agent must be increased. There are disadvantages such as poor performance. In addition, if the first agent is in powder form, problems such as solubility will be eliminated, but contamination due to scattering may occur, and commonly used ammonia cannot be used because it has no residual property. The bigger problem arises. In method ■, the second
Due to the high concentration of hydrogen peroxide in the agent, there is a problem with the stability of the container or the second agent itself.Additionally, method Since the oxidative dye polymerizes in the dye bath system before it penetrates, there is a drawback that sufficient hair dyeing cannot be achieved at the same time as bleaching.

Therefore, it has been desired to develop an oxidized hair dye and a hair dyeing method that are free from problems such as solubility and stability and have excellent gray hair concealing properties.

[Means to solve the problem]

Under these circumstances, the present inventors conducted extensive research and found that if percarbonate and/or perborate is used as the third agent, it will work synergistically with hydrogen peroxide in the second agent to bleach black hair. In addition, the volume after mixing the first and second parts does not change significantly, so there is no need to increase the amount of oxidation dye or additive components in the first part, and a wide range of color tones and shades can be achieved. In addition, since there is no need to increase the amount of hydrogen peroxide in the second agent, the stability of the container and the second agent itself is good, and unlike persulfates, it has no dyeing properties against gray hair. The present invention has been completed based on the discovery that sufficient dyeing properties can be obtained without any significant decrease in hair color, and that gray hair concealment properties are significantly improved.

That is, the present invention provides an oxidative hair dye in which a plurality of preparations are mixed and used, in which the plurality of preparations include a first part containing an oxidation dye, a second part containing hydrogen peroxide, and a percarbonate or a percarbonate. The present invention provides an oxidized hair dye characterized by being a third agent containing one or more borates.

The oxidative dye contained in the first agent of the present invention is not particularly limited as long as it is generally used in oxidative hair dyes, and for example, it is based on the "Hair Dye Raw Materials Standard" or rcOLIPA LIS.
Oxidation dyes described in TJ can be used, specifically p-
phenylene diamine, 2,5-diaminotoluene, p-
Aminophenol, precursors such as 2,5-diaminopyridine and resorcinol, m-aminophenol,
Couplers such as m-phenylenediamine and catechol can be mentioned. These oxidation dyes are contained in the first agent at 0.00
It is preferable that the content is 1 to 20% by weight (hereinafter simply expressed as %).

The amount of hydrogen peroxide contained in the second agent of the present invention is
It is preferably 0.1 to 12%, particularly 1 to 6% in the agent.

The first agent and the second agent in the oxidized hair dye of the present invention can be manufactured according to a conventional method, and the dosage form thereof may be a transparent liquid, a milky lotion, a cream, a gel, a paste, a mousse, or a combination thereof. It can be done.

In addition, the percarbonate or perborate contained in the third agent of the present invention includes alkali metal salts, alkaline earth metal salts, or ammonium salts of percarbonate or perboric acid, and specifically, Examples include sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, and water adducts thereof.

These can be used alone or in combination of two or more, and the total amount in the third agent is 1 to 100%, especially 5
It is preferable that it is contained in an amount of 0 to 100%.

The third agent in the oxidized hair dye of the present invention is manufactured according to a conventional method, and its dosage form is not particularly limited as long as percarbonate or perborate is the main component, but it is in the form of a powder with little change in volume after mixing. , tablets, pastes, etc. are preferable.

The blending ratio of the first agent, second agent, and third agent may be such that one of them is in excess of the other, but the ratio of the first agent to the second agent is
The ratio of the agent is preferably 1:9 to 9:1, particularly 3 to 7:3.

In addition, (1st agent, 2nd agent) and 3rd agent are 1000:1 to 6.
:4, especially preferably 100:1 to 3:1.

In addition to the above-mentioned essential components, other optional components commonly used in the cosmetics field can be added to the oxidized hair dye of the present invention within a range that does not impede the effects of the present invention. Such optional ingredients include, for example, viscosity/gel strength modifiers such as gum arabic, locust bean gum, sodium alginate, xanthan gum, cellulose derivatives, natural or synthetic polymers such as crosslinked polyacrylic acid; avocado oil, jojoba oil, Oils and fats such as macadamian nut oil and olive oil glyceride; Waxes such as beeswax and lanolin; Hydrocarbons such as liquid paraffin, solid paraffin, isoparaffin, and squalane; Chain or branched higher alcohols; propylene glycol,
Polyhydric alcohols such as glycerin, 1,3-butylene glycol, polyglycerin, and sorbitol; Esters such as isopropyl myristate and octyldodecyl myristate; Amides such as oleic acid jetanolamide and lauric acid jetanolamide; dimethyl Silicone derivatives such as polysiloxane, methylphenylpolysiloxane, polyether-modified silicone, and amino-modified silicone; Cationic activators such as stearyltrimethylammonium chloride and distearyldimethylammonium; polyoxyethylene lauryl ether sulfate, polyoxyethylene lauryl sulfosuccinic acid anionic activators such as salts; amphoteric activators such as lauryl hydroxysulfobetaine, lauryl dimethylcarbobetaine; nonionic polymers such as polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate; acrylic acid and/or methacrylic acid. Anionic polymer such as a copolymer of acid and (meth)acrylic acid alkyl ester; N
-Methacryloylethyl-N,N-dimethylammonium-α-Ampholytic polymers such as copolymers of N-methylcarboxybetaine and butyl methacrylate; Protein derivatives and amino acids such as collagen and keratin hydrolysates; Plant extracts Herbal medicine extracts; Vitamins; Preservatives such as parabens; Chelating agents such as EDTA-Na; Stabilizers such as zenacetin; Antioxidants such as thioglycolic acid, sulfites, and ascorbic acid; Colors; Fragrances; Pigments etc.

The hair dyeing method using the oxidized hair dye of the present invention includes the first agent,
It is carried out by preparing a second agent and a third agent and applying them to the hair.
The agent and the third agent can be used separately and in succession, or they can be used in combination. Particularly, it is preferable to mix the first agent, the second agent, and the third agent immediately before use, and use the mixture.

Application of these products to the hair is carried out, for example, by uniformly applying them to the hair, leaving them for a certain period of time (usually 5 to 45 minutes), and then washing.

〔Effect of the invention〕

The oxidative hair dye of the present invention has excellent bleaching properties for black hair and dyeing properties for gray hair, has significantly improved gray hair concealing properties, and is extremely excellent in causing little hair damage.

[Example] Next, the present invention will be specifically described with reference to Examples, but the present invention is not limited thereto.

Example 1 Oxidized hair dyes having the following compositions were prepared, and for each,
The dyeing of gray hair, the brightness of black hair, and the disappearance of the conspicuousness of gray hair were evaluated. The results are shown in Table 1.

(Composition) p-aminophenol resorcinol -aminophenol oleic acid 0.3 0 2 20.0 Anhydrous sodium sulfite 0.3 Propylene glycol 1O30 Impropatur 10.0 Stearic acid monoethanolamide 15.028% ammonia water
10.0 EDTAINa ・4H200,2 Water Remaining amount 100.0 Second agent: Concentrated hydrogen peroxide solution diluted with water to the concentration shown in Table 1.

Third agent: Persalt of the following ■, ■ or ■.

■Sodium percarbonate (powder) with 13% effective oxygen content ■Sodium perborate (powder) with 15% effective oxygen content ■Purity 9
5% ammonium persulfate (powder) (Evaluation method) After mixing 50 g of the first agent, 50 g of the second agent, and the amounts listed in Table 1 of the third agent, apply 1 g of the mixture to 1 g of black hair mixed with gray hair. After being left at 30°C for 30 minutes, it was washed with water, shampooed, dried, and visually evaluated.

(Evaluation criteria) ◎：Good O: Somewhat good △: Slightly bad ×: Bad Margin below

Claims (1)

[Claims] In oxidative hair dyes that use a mixture of multiple formulations,
The plurality of preparations are characterized in that the first part contains an oxidation dye, the second part contains hydrogen peroxide, and the third part contains one or more of percarbonates or perborates. Oxidized hair dye.