CN115990116A - Oxidative hair dye composition - Google Patents

Abstract

In the multi-dose oxidation hair dye composition containing (a) an oxidizing agent, (B) an iodide, and (C) an oxidation dye, the difference in coloring of hair dye due to the length of the hair dye treatment time can be suppressed to be small by containing 0.05 mass% or more of (C1) m-aminophenol, and therefore, even if the hair dye treatment time is not strictly adhered to after a predetermined hair dye treatment time, the same coloring can be achieved. In the multi-dose oxidation hair dye composition containing (a) an oxidizing agent, (B) an iodide, and (C) an oxidation dye, since a large amount of heat generation is generated by the oxidation-reduction reaction between the iodide and the oxidizing agent by containing 0.05 mass% or more of (B) an iodide, the oxidation hair dye can be effectively warmed up with a small amount of reducing agent.

Description

Oxidative hair dye composition

This application is a divisional application of the Chinese invention patent application No. 201780033260.0 with the application date of April 12, 2017, and the title of the invention is "oxidative hair dye composition". The Chinese invention patent application is based on the international application PCT/JP2017/014954, And priority is claimed to Japanese patent applications 2016-091956, 2016-091958 filed on April 28, 2016, which are hereby incorporated by reference in their entirety.

technical field

The present invention relates to an oxidative hair dye composition for dyeing hair and the like. Specifically, it relates to an iodide-containing multi-agent oxidation hair dye composition.

More specifically, the present invention relates to an oxidative hair dye composition that maintains a certain amount of hair dyeing property after a predetermined hair dyeing treatment time, and can suppress the difference in hair coloring caused by the length of hair dyeing treatment time to a small amount .

In addition, the present invention relates to an oxidation hair dye composition heated by self-heating when mixing a plurality of agents of a multi-agent oxidation hair dye composition from another viewpoint.

Background technique

The oxidation hair dye composition dyes hair by oxidizing an oxidation dye composed of a dye intermediate and a coupling agent on hair to develop color. A general oxidation hair dye composition is composed of a first agent containing an oxidation dye and a second agent containing an oxidizing agent, and these agents are mixed before application to hair.

In order to promote oxidation of oxidation dyes, a method of adding iodide such as potassium iodide is known. According to this method, hair can be dyed more rapidly than an oxidation hair dye composition to which iodide is not added.

For example, Patent Document 1 discloses a method for dyeing keratin fibers, wherein a composition containing iodide and 5,6-dihydroxyindole is applied to the keratin fibers, and then, at a pH of 2-5, the composition containing Compositions of hydrogen peroxide. In addition, Patent Document 2 discloses a hair dyeing method in which a composition containing an indole derivative, an oxidation dye, and potassium iodide is applied to hair, and then a composition containing hydrogen peroxide is applied.

In these hair dyeing methods, in order to separately apply the two kinds of compositions to the hair, much time and labor are required for the hair dyeing treatment.

In view of this, methods for preparing an oxidative hair dye composition by mixing an iodide, an oxidizing agent, and an oxidation dye before application to hair, and applying the oxidative hair dye composition to hair are disclosed (Patent Documents 3 and 4). According to this method, in addition to the effect of enabling application to hair in a single step, the effect of enabling strong color development with a low concentration of oxidation dye was also confirmed.

In addition, as a technique for improving the hair dyeing power of the oxidized hair dye composition, a method of heating the oxidized hair dye composition by heating the oxidized hair dye composition while mixing the first agent and the second agent is known. For example, Patent Document 5 describes a hair dye composition, which is characterized in that, in a multi-agent hair dye, heat is generated when mixed and used. response etc. In addition, in the invention described in Patent Document 5, sodium sulfite is used as a reducing agent used in the oxidation-reduction reaction.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 62-238877

Patent Document 2: Japanese Patent No. 2595076

Patent Document 3: Japanese Patent Application Laid-Open No. 5-194162

Patent Document 4: Japanese Patent Laid-Open No. 2004-59592

Patent Document 5: Japanese Patent Laid-Open No. 2000-86471

Contents of the invention

The problem to be solved by the invention

(1st subject)

In an ordinary oxidative hair dye composition not containing iodide, the coloring depth of the hair changes according to the length of time after application to the hair (hereinafter referred to as "hair dyeing treatment time"), and the longer the hair dyeing treatment time Long, darker colored hair. Therefore, the hair dyeing treatment time is adjusted so that hair can be processed to a desired shade. However, when the shade of the hair color varies greatly depending on the hair dyeing treatment time, there is a problem that the color is thinner or darker than the desired color tone.

On the other hand, in the oxidative hair dye composition containing iodide, a predetermined color is applied in a short hair dyeing treatment time, but a phenomenon of lightening of the color is observed when the hair is left to stand further. Therefore, in the oxidation hair dye composition containing iodide, it is necessary to strictly observe the hair dyeing treatment time set by the designer.

The first object of the present invention is to provide an oxidation hair dye composition, which is a multi-agent type oxidation hair dye composition containing iodide, which suppresses the difference in hair coloring due to the length of hair dyeing treatment time to be small, Even if the hair dyeing treatment time is not strictly adhered to, it can be colored into the prescribed color.

(Session 2)

Conventionally, sodium sulfite has been used as a reducing agent in an oxidative hair dye composition in which hair dyeing power is improved by self-heating and heating. However, since the calorific value is small, it is necessary to add a large amount of reducing agent. If a reducing agent is added in a large amount, the formulation of other raw materials is limited in consideration of stability, or the amount of an oxidizing agent that requires a second dose also increases.

Therefore, the object of the second subject of the present invention is to search for a reducing agent with a large calorific value in a multi-agent type oxidation hair dye composition that self-heats when a plurality of agents are mixed, and to effectively use a small amount of reducing agent. Increase the temperature of the oxidizing hair dye composition.

Technical means used to solve problems

(Technical means for solving the first problem)

The inventors conducted intensive research on the above-mentioned first problem, and as a result, found that in an oxidative hair dye composition containing iodide, when more than a certain amount of m-aminophenol is contained, the change in the shade of hair caused by the length of hair dyeing treatment time Reduced, thereby completed the present invention.

That is, this invention is the following oxidation hair dye composition and its usage method.

The oxidation hair dye composition of the present invention for solving the above-mentioned first problem is an oxidation hair dye composition containing (A) an oxidizing agent, (B) an iodide, and (C) an oxidation dye, wherein the above (C) The oxidation dye contains (c1) m-aminophenol, and the content of the above-mentioned (c1) m-aminophenol is 0.05% by mass or more.

According to this oxidation hair dye composition, since iodide is contained, hair can be dyed rapidly. In addition, since the oxidizing agent and the oxidizing dye are mixed and applied to the hair, the procedure of applying the oxidative hair dye composition to the hair can be simplified.

In addition, the inclusion of m-aminophenol suppresses the phenomenon of lightening of the hair color after a predetermined hair dyeing treatment time in the oxidation hair dye composition containing iodide, and can maintain a certain hair dyeing property even after a predetermined hair dyeing treatment time passes. .

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned first problem, the ratio of the content of (c1) m-aminophenol to the total content of (C) oxidation dye (c1 /C) is 0.01-1.

According to this feature, it is possible to further exhibit the effect of suppressing changes in hair dyeing properties due to the length of hair dyeing treatment time.

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned first problem, it further contains an alkali agent, and the content of the alkali agent is 0.05 to 2 mmol/g.

According to this feature, it is possible to further exhibit the effect of suppressing changes in hair dyeing properties due to the length of hair dyeing treatment time.

The method of using the oxidative hair dye composition of the present invention for solving the above-mentioned first problem is characterized in that the oxidative hair dye composition of the present invention is applied to the hair and left for 30 minutes or more.

According to the method of using the oxidative hair dye of the present invention for solving the above-mentioned first problem, a certain hair dyeing property can be maintained after 30 minutes or more, so it is possible to suppress the difference in the coloring of the dyed hair due to the length of the hair dyeing treatment time.

(Technical means for solving the second problem)

As a result of intensive research on the above-mentioned second problem, the inventors have found that not only rapid hair dyeing can be achieved by using iodide as a reducing agent, but also the temperature at which the hair dye composition is oxidized can be further increased, thereby completing the present invention.

That is, this invention is the following oxidation hair dye composition and its usage method.

The oxidation hair dye composition of the present invention for solving the above-mentioned second problem is a multi-component oxidation hair dye composition containing (A) an oxidizing agent, (B) an iodide, and (C) an oxidation dye, and is characterized in that, Content of said (B) iodide is 0.05 mass % or more.

When iodide is used as a reducing agent, the calorific value is larger than that of conventional sodium sulfite. Therefore, according to the oxidation hair dye composition of the present invention for solving the above-mentioned second problem, it is possible to increase the temperature more effectively than conventional oxidation hair dye compositions. .

Moreover, the effect that the temperature of the oxidation hair dye composition after high temperature can be maintained for a long time was also observed by using an iodide. According to this effect, the hair dyeing power of the oxidative hair dye composition is improved because the high temperature is maintained during the application on the hair and the hair dyeing treatment.

Moreover, according to one Embodiment of the oxidation hair dye composition of this invention for solving the said 2nd subject, it is characterized by containing (D) a higher alcohol.

According to this characteristic, further temperature rise of the oxidation hair dye composition and improvement of hair dyeing property are observed.

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned second problem, it is characterized in that it further contains a water-soluble polymer.

According to this characteristic, the further improvement of the hair dyeing property of an oxidative hair dye composition was observed.

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned second problem, (C) the oxidation dye contains (c2) p-aminophenol.

According to this feature, a further increase in temperature of the oxidative hair dye composition was observed.

Moreover, according to one Embodiment of the oxidation hair dye composition of this invention for solving the said 2nd subject, it has the characteristic that the pH of an oxidation hair dye composition is 8-12.

According to this feature, a further increase in temperature of the oxidative hair dye composition was observed.

The method of using the oxidation hair dye composition of the present invention for solving the above-mentioned second problem is characterized by including the following steps.

Step 1: mixing (A) oxidant, (B) iodide, and (C) oxidation dye to prepare an oxidation hair dye composition;

Step 2: heating the oxidative hair dye composition by self-heating;

Step 3: applying the heated oxidative hair dye composition to the hair;

Step 4: After applying the oxidative hair dye composition to the hair, leave it for more than 10 minutes.

According to the method of using the oxidative hair dye composition of the present invention for solving the above-mentioned second problem, since a reducing agent composed of iodide is used, it is possible to prepare an oxidative hair dye composition heated to a higher temperature. Moreover, since this oxidative hair dye composition maintains high temperature even if it is left to stand for 10 minutes or more, the hair dyeing method excellent in hair dyeing property can be provided.

Invention effect

According to the oxidative hair dye composition of the present invention for solving the above-mentioned first problem, the difference in the coloring of the dyed hair due to the length of the hair dyeing treatment time is reduced, so even if the hair dyeing treatment time is not strictly observed, it can be colored to the specified color. color.

According to the oxidative hair dye composition of the present invention for solving the above-mentioned second problem, a large calorific value is generated by the oxidation-reduction reaction between the reducing agent composed of iodide and the oxidizing agent, so the oxidative hair dyeing can be effectively carried out with a small amount of reducing agent. The temperature of the agent composition is increased.

Thus, by adding a large amount of the reducing agent, it is possible to reduce adverse effects caused by the addition of the reducing agent, such as restricting the formulation of other raw materials or increasing the amount of the oxidizing agent in the second agent.

Detailed ways

Next, description will be given including the best mode for carrying out the present invention.

[Oxidation hair dye composition]

The oxidation hair dye composition of the present invention is an oxidation hair dye composition containing (A) an oxidizing agent, (B) an iodide, and (C) an oxidation dye.

In the oxidation hair dye composition, the (A) oxidizing agent and (C) oxidation dye are divided into separate agents and distributed, and the (C) oxidation dye is allowed to develop color on the hair. Generally, the composition is represented by a two-agent composition comprising a first agent containing (C) an oxidation dye and a second agent containing (A) an oxidizing agent, but may also be a multi-agent composition consisting of three or more agents.

In addition, (B) iodide in this invention should just be contained in the agent different from the 2nd agent containing an oxidizing agent. For example, it may be included in the first agent containing (C) an oxidation dye, or only (B) iodide may be classified as a different agent. From the viewpoint of simplifying the mixing operation, it is preferably contained in the first part to form a two-part formula.

(A) An oxidizing agent, (B) an iodide, and (C) an oxidation dye are mixed at the time of use to prepare an oxidation hair dye composition. Blending can be done before or after application to the hair. For example, it may be mixed just before application to the hair, or the first agent and the second agent may be taken on a comb or the like, and mixed on the hair using a comb or the like. Since iodide functions as a reducing agent, when mixed with an oxidizing agent, heat is generated by oxidation-reduction reaction, and the oxidative hair dye composition is heated. Therefore, if the oxidative hair dye composition is heated before application and mixed before application to the hair, it is possible to suppress discomfort caused by a cold feeling when it adheres to the scalp.

The temperature of the oxidative hair dye composition is not particularly limited, but the highest attained temperature is preferably 28-50°C, more preferably 30-48°C, particularly preferably 35-45°C. It should be noted that the temperature of the oxidative hair dye composition can be set within a predetermined range by adjusting the content of the oxidizing agent and the reducing agent consisting of iodide. When applying to the hair, by adjusting the temperature of the oxidative hair dye composition to 35-45° C., discomfort caused by a cold feeling when applied to the scalp is suppressed.

In addition, from the viewpoint of maintaining the temperature of the oxidized hair dye composition after heating for a long time, the average value of each temperature after 10 minutes, 20 minutes, and 30 minutes from the start of the mixing operation is preferably 28-45°C, more preferably Preferably it is 30-42°C. By setting it as this range, since the temperature of the oxidation hair dye composition in a hair dyeing process is kept high, the effect which is excellent in hair dyeing property is exhibited.

Particularly preferred is an oxidative hair dye composition that reaches 35 to 45° C. upon application to hair and maintains the temperature for 30 minutes or more.

The form of each agent forming the oxidation hair dye composition of the present invention may be in any form, for example, a liquid form, a cream form, a gel form, etc. are mentioned. In addition, the oxidation hair dye composition after mixing the components may be in a formulation form such as liquid, cream, gel, etc., and powdery or solid substances may be contained in a part of the formulation. In addition, all the agents may be used after being dissolved in water in the form of powder or solid. If it is a paste-like dosage form, self-foaming occurs due to the oxidation-reduction reaction of the reducing agent composed of iodide, so that a self-foaming oxidative hair dye composition can be obtained. By self-foaming to form a foam, the effect of being excellent in applicability to hair is exhibited.

In addition, it can also form bubbles or mist when used. In the case of forming a bubble, an aerosol molded container, a non-aerosol molded container, a shaker container, or the like can be used. In the case of a mist, a nebuliser may be used. When the oxidative hair dye composition of the present invention is made into a foam formulation, the effect of improving foam quality, foaming, and the like is exhibited.

The pH of the oxidative hair dye composition is not particularly limited, but is preferably 8-12, more preferably 9 or more as the lower limit, and more preferably 11 or less as the upper limit. By setting it as this range, the effect of maintaining the temperature of the oxidation hair dye composition after temperature-raising for a long time can be promoted.

Next, each component used for the oxidation hair dye composition of this invention is demonstrated in detail. In addition, the content of each component shows the content in the oxidation hair dye composition which mixed each component, unless otherwise indicated.

<(A) Oxidizing agent>

The oxidizing agent is a component contained in the second agent, and any substance may be used as long as it has oxidizing power. The oxidizing agent has the function of oxidizing the oxidation dye to develop color, or decomposing the melanin inside the hair. In addition, it is a substance that reacts with a reducing agent composed of (B) iodide to generate heat. Specifically, for example, hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, sodium persulfate, etc. persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adduct of sulfate, hydrogen peroxide adduct of phosphate, coke Hydrogen peroxide adducts of phosphates, peracetic acid and its salts, performic acid and its salts, permanganate, bromate, etc. Among these, hydrogen peroxide is preferable. In addition, persulfates such as ammonium persulfate, potassium persulfate, and sodium persulfate may be contained as an oxidation aid.

The content of the oxidizing agent in the oxidative hair dye composition is not particularly limited, and is, for example, 0.1-15% by mass. The lower limit is more preferably 1% by mass or more, and the upper limit is more preferably 9% by mass or less. In the case of containing hydrogen peroxide as an oxidizing agent, it is preferable to mix ethylene glycol phenyl ether (phenoxyethanol), hydroxyethane diphosphonic acid, phosphoric acid, citric acid, or its salt etc.

<(B) Iodide>

Iodides are compounds containing iodine, for example, alkali metal salts of iodides such as potassium iodide, sodium iodide, and lithium iodide, compounds such as hydrogen iodide, cesium iodide, and silver iodide, and iodized garlic extracts, etc. Extracts containing iodide, etc. It is preferably an alkali metal salt of iodide, more preferably potassium iodide or sodium iodide, and particularly preferably potassium iodide.

Iodide has the effect of promoting the color development of oxidation dyes. Therefore, the oxidation hair dye composition exhibits the effect of shortening the hair dyeing treatment time by containing iodide.

The content of iodide in the oxidation hair dye composition is not particularly limited, but is preferably 0.01 to 5% by mass from the viewpoint of promoting color development of the oxidation dye. The lower limit is more preferably 0.05% by mass or more, particularly preferably 0.1% by mass or more. The upper limit is more preferably 3% by mass or less, particularly preferably 1% by mass or less.

In addition, iodide has the action of reacting with an oxidizing agent to generate heat. Since the oxidation-reduction reaction by iodide has a large calorific value, it is effective in raising the temperature of the oxidized hair dye composition effectively with a small amount. In addition, the temperature of the oxidized hair dye composition raised to high temperature can be maintained for a long period of time.

The content of iodide in the oxidative hair dye composition is not particularly limited, but is preferably 0.05% by mass or more from the viewpoint of increasing the temperature of the oxidative hair dye composition. When it is less than 0.05% by mass, the calorific value is small, and the effect of raising the temperature of the oxidative hair dye composition cannot be exhibited. More preferably, it is 0.1 mass % or more, Still more preferably, it is 0.15 mass % or more, Especially preferably, it is 0.3 mass % or more. On the other hand, the upper limit is preferably 5% by mass or less, more preferably 3% by mass or less, particularly preferably 1% by mass or less.

From the viewpoint of imparting self-foaming properties to the oxidative hair dye composition, the iodide content in the oxidative hair dye composition is preferably 0.2% by mass or more, more preferably 0.5% by mass or more. By setting it as 0.2 mass % or more, the favorable soufflé-like oxidation hair dye composition can be obtained.

<(C) Oxidation dye>

An oxidation dye is a dye which develops color by oxidation-polymerization of (A) oxidizing agent. Oxidation dyes include a dye intermediate and a coupling agent. The dye intermediate is a substance that develops color by its own oxidation, and the coupling agent is a substance that can obtain various hues by combining with a dye intermediate.

Dye intermediates are dye precursors mainly of ortho or para phenylenediamines or aminophenols, and are usually colorless or weakly colored compounds themselves.

Specifically, (c2) p-aminophenol, o-aminophenol, p-methylaminophenol, p-phenylenediamine, toluene-2,5-diamine (p-toluenediamine), N -Phenyl-p-phenylenediamine, 4,4'-diaminodiphenylamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p-phenylenediamine, 4-amino-m-cresol, 2-amino-4 -Hydroxyethylaminoanisole, 2,4-diaminophenol and their salts, 2,2'-[(4-aminophenyl)imino]bisethanol sulfate, etc.

One type or two or more types of dye intermediates can be selected and used according to the desired color tone of hair. In addition, the content thereof is not particularly limited, but, for example, the total content of dye intermediates in an oxidation hair dye composition is 0.01 to 5% by mass. The lower limit is more preferably 0.05% by mass or more, particularly preferably 0.1% by mass or more. The upper limit is more preferably 3% by mass or less, particularly preferably 1% by mass or less.

As a dye intermediate, it is preferable to contain (c2) p-aminophenol. By containing (c2) p-aminophenol, it is possible to further increase the temperature of the oxidized hair dye composition due to the effect of increasing the temperature of the oxidized hair dye composition. The content of p-aminophenol is not particularly limited, and is, for example, 0.001 to 2% by mass in the oxidative hair dye composition. The lower limit is more preferably 0.005% by mass or more, particularly preferably 0.01% by mass or more. The upper limit is more preferably 1% by mass or less, particularly preferably 0.5% by mass or less. When the content of p-aminophenol is small, the temperature-raising effect of p-aminophenol is not exhibited, and when the content of p-aminophenol is large, the temperature of the oxidized hair dye composition may be excessively increased.

In addition, the ratio (c2/C) of the content of (c2) p-aminophenol to the total content of (C) oxidation dye is not particularly limited, but is preferably 0.001-0.1. The lower limit is more preferably 0.005 or more, particularly preferably 0.01 or more. The upper limit is more preferably 0.08 or less, particularly preferably 0.05 or less. When c2/C is small, the temperature-raising effect of p-aminophenol is not exerted, and when c2/C is large, the temperature of the oxidized hair dye composition may be excessively increased.

The coupling agent mainly includes meta-diamines, aminophenols, or diphenols, and specifically, (c1) m-aminophenol, resorcinol, catechol, pyrogallol, etc. Phenol, phloroglucinol, gallic acid, hydroquinone, 5-amino-o-cresol, 5-(2-hydroxyethylamino)-2-methylphenol, m-phenylenediamine, 2,4-di Aminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2,6-diaminopyridine, diphenylamine, 3,3'-iminodiphenyl, 1,5-dihydroxynaphthalene, Tannic acid and their salts, 1-hydroxyethyl-4,5-diaminopyrazole sulfate, etc.

The type of couplant can be selected and used in accordance with the desired color tone of hair, or two or more. In addition, its content is not particularly limited. For example, in an oxidation hair dye composition, the total content of coupling agents is 0.01 to 5% by mass. The lower limit is more preferably 0.05% by mass or more, still more preferably 0.08% by mass or more, particularly preferably 0.1% by mass or more. The upper limit is more preferably 3% by mass or less, particularly preferably 1% by mass or less.

As a coupling agent, it is preferable to contain 0.05 mass % or more of (c1) m-aminophenol in an oxidation hair dye composition. The inventors of the present invention found that, in order to solve the reduction in hair dyeing properties caused by the prolongation of hair dyeing treatment time in the oxidation hair dye composition containing iodide, various oxidation dyes were screened, and as a result, it was found that the composition containing (c1) meta-amino group When phenol is 0.05 mass % or more, even if hair-dyeing treatment time is extended, hair-dyeing property will not fall. In addition, it was confirmed that the oxidative hair dye composition of the present invention containing (c1) m-aminophenol 0.05% by mass or more, as in the conventional oxidative hair dye composition not containing iodide, increases the coloring of the dyed hair when the hair dyeing treatment time is prolonged. It has a so-called automatic stop effect that maintains a certain hair dyeing property after a predetermined hair dyeing treatment time. If this effect is utilized, even if the hair dyeing treatment time is slightly prolonged, the difference in the color of the dyed hair is small, so even if the hair dyeing treatment time is not strictly observed, it can be dyed to a predetermined color.

The content of (c1) m-aminophenol in the oxidative hair dye composition is preferably at least 0.05% by mass, more preferably at least 0.08% by mass, and particularly preferably at least 0.1% by mass. On the other hand, the upper limit is preferably 5% by mass or less, more preferably 3% by mass or less, particularly preferably 1% by mass or less.

In addition, although the content of (c1) m-aminophenol is not particularly limited relative to the total content (c1/C) of the oxidation dye (C), it is preferably 0.005-1. The lower limit is more preferably 0.01 or more, particularly preferably 0.05 or more. The upper limit is more preferably 0.5 or less, particularly preferably 0.3 or less.

(C) The total content of the oxidation dye is not particularly limited, but is preferably 0.002-10% by mass. The lower limit is more preferably 0.02% by mass or more, particularly preferably 0.2% by mass or more. The upper limit is more preferably 8% by mass or less, particularly preferably 6% by mass or less. When the total content of the oxidation dye (excluding p-aminophenol) is large, it has the effect of suppressing the temperature-raising effect of the reducing agent composed of iodide. In addition, this action can be utilized, for example when the temperature of the oxidative hair dye becomes too high.

<other ingredients>

The oxidation hair dye composition of the present invention may contain the following components as needed in addition to the above-mentioned components (A) to (C).

Examples of other components include alkali agents, direct dyes, oily components, surfactants, water-soluble polymers, ascorbic acid, antioxidants such as anhydrous sodium sulfite, preservatives such as phenoxyethanol and sodium benzoate, ethanol, etc. Organic solvents, sugars such as sorbitol and maltose, polyols such as polyethylene glycol and dipropylene glycol, chelating agents such as trisodium ethylenediamine hydroxyethyl triacetate dihydrate, tetrasodium hydroxyethane diphosphonate, chlorine Sodium chloride, sodium carbonate and other inorganic salts, ammonium sulfate, ammonium nitrate, ammonium acetate, citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid, carbonic acid pH adjusters such as ammonium hydrogen, hair growth ingredients, plant extracts, crude drug extracts, amino acids and peptides, urea, vitamins, fragrances, and ultraviolet absorbers, etc.

<Alkaline agent>

The alkaline agent has the effect of swelling the hair and promoting the penetration of dyes or oxidants. As the alkali agent, for example, ammonia, alkanolamine, silicate, carbonate, bicarbonate, orthosilicate, phosphate, basic amino acid, hydroxide, etc. can be illustrated. Specifically, examples of alkanolamines include monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, aminomethylpropanol, and isopropylamine, and examples of silicates include sodium silicate, silicon Potassium bicarbonate, etc., examples of carbonates include sodium carbonate, ammonium carbonate, magnesium carbonate, guanidine carbonate, etc., examples of bicarbonates include sodium bicarbonate, ammonium bicarbonate, etc., examples of orthosilicates include : Sodium orthosilicate, potassium orthosilicate, etc. Examples of phosphates include primary ammonium phosphate, secondary ammonium phosphate, disodium hydrogen phosphate, trisodium phosphate, etc. Basic amino acids include arginine, lysine Acids and their salts, etc., calcium hydroxide, magnesium hydroxide, etc. are illustrated as a hydroxide. Among these, ammonia and alkanolamines are preferable. Alkaline agents are usually contained in the first dose.

The content of the alkali agent in the oxidative hair dye composition is not particularly limited, but is preferably 0.01-20% by mass, the lower limit is more preferably 0.1% by mass or more, and the upper limit is more preferably 15% by mass or less.

When the content of the alkali agent contained in 1 g of the oxidation hair dye composition is expressed in moles, it is preferably 0.05 to 2 mmol/g. The lower limit is more preferably 0.1 mmol/g or more, particularly preferably 0.25 mmol/g or more. The upper limit is more preferably 1.5 mmol/g or less, particularly preferably 1 mmol/g or less.

<Direct Dye>

Direct dyes are colored compounds that are attached to or soaked into the hair to dye the hair. For example, there are acid dyes, basic dyes, natural dyes, nitro dyes, HC dyes, disperse dyes and the like. These direct dyes may be blended alone or in combination.

Examples of the above-mentioned acid dyes include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 227, and Red No. 230 ( 1), Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Orange No. 205, Orange No. 207, Orange No. 402, Green No. 3, Green No. 204 , Green No. 401, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 202, Brown No. 201, Black No. 401, etc.

Examples of the basic dyes include Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 47, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Basic Green 1, Basic Green 4, Basic Orange 1, Basic Orange 2, Basic Orange 31, Basic Red 1, Basic Red 2, Basic red 22, basic red 46, basic red 51, basic red 76, basic red 118, basic violet 1, basic violet 3, basic violet 4, basic violet 10, basic violet 11: 1. Basic violet 14, basic violet 16, basic yellow 11, basic yellow 28, basic yellow 57, basic yellow 87, etc.

As said natural dye, gardenia pigment, curcumin, annatto, sodium copper chlorophyllin, capsaicin, lac pigment, henna, etc. can be illustrated.

Examples of the nitro dyes include: 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, Piric acid, picric acid, and their salts, etc.

Examples of the aforementioned HC dyes include: HC Blue No.2, HC Blue No.5, HC Blue No.6, HC Blue No.9, HC Blue No.10, HC Blue No.11, and HC Blue No.12 , HC Blue No.13, HC Orange No.1, HC Orange No.2, HC Orange No.3, HC Red No.1, HC Red No.3, HC Red No.7, HC Red No.10, HC Red No.11, HC Red No.13, HC Red No.14, HC Purple No.1, HC Purple No.2, HC Yellow No.2, HC Yellow No.4, HC Yellow No.5, HC Yellow No. .6. HC Yellow No.9, HC Yellow No.10, HC Yellow No.11, HC Yellow No.12, HC Yellow No.13, HC Yellow No.14, HC Yellow No.15, etc.

Examples of the above-mentioned disperse dyes include: Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet 4, Disperse Violet 15, etc.

The direct dye content in the oxidative hair dye composition is not particularly limited, but is preferably 0.001-10% by mass, the lower limit is more preferably 0.01% by mass or more, and the upper limit is more preferably 3% by mass or less.

<Oil-based ingredients>

Examples of oily components include (D) higher alcohols, fats and oils, waxes, hydrocarbons, higher fatty acids, esters, silicone oils, fluorine oils, and the like. One or more of these oily ingredients can be selected and used. By containing an oily component, hair dyeing property can be improved, and the touch (finger-through) of hair can be improved.

<(D) higher alcohol>

Examples of higher alcohols include cetyl alcohol (cetyl alcohol), stearyl alcohol, cetostearyl alcohol, oleyl alcohol, linoleic alcohol, linolenic alcohol, eicosanol, eicosanol, Didecanol, Lauryl Alcohol, Myristyl Alcohol, 2-Hexyl Decanol, Isostearyl Alcohol, 2-Octyl Dodecyl Alcohol, Decyl Tetradecyl Alcohol, Phytosterols, Phytostanols, Cholesterol, Cholesterol, lanosterol, ergosterol, etc.

By containing a higher alcohol, the temperature-raising of an oxidative hair dye composition is accelerated|stimulated, and the effect of improving hair dyeing property is observed.

The content of the higher alcohol in the oxidative hair dye composition is not particularly limited, and is not particularly limited, and is, for example, 0.01 to 20% by mass. The lower limit is more preferably 0.1% by mass or more, particularly preferably 1% by mass or more. The upper limit is more preferably 15% by mass or less, particularly preferably 10% by mass or less.

Fats are triglycerides, triesters of fatty acids and glycerol. For example, olive oil, rosehip oil, camellia oil, shea butter, macamilla nut oil, almond oil, tea seed oil, camellia oil, safflower oil, sunflower oil, soybean oil, Cottonseed Oil, Sesame Oil, Tallow, Cocoa Butter, Corn Oil, Groundnut Oil, Canola Oil, Rice Bran Oil, Rice Germ Oil, Wheat Germ Oil, Horse Round Oil, Grape Seed Oil, Avocado Oil, Carrot Oil, Castor Oil , linseed oil, coconut oil, mink oil, egg butter, etc.

Waxes are esters of higher fatty acids and higher alcohols. For example, beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, spermaceti wax, rice bran wax, cane wax, carnauba wax, montan wax, cotton wax, bayberry wax, white wax, kapok Wax, shellac wax, etc.

Hydrocarbons are compounds made of carbon and hydrogen. Examples include liquid paraffin, paraffin, microcrystalline wax, vaseline, isoparaffins, ozokerite, mineral wax, polyethylene, α-olefin oligomers, polybutene, synthetic squalene, squalane, Hydrogenated squalene, limonene, turpentine, etc.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecanic acid, Carbenoic acid, linoleic acid, ricinoleic acid, lanolin fatty acid, etc.

Esters are compounds obtained by the dehydration reaction of fatty acids and alcohols. For example, diisopropyl adipate, 2-hexyldecyl adipate, isopropyl myristate, myristyl myristate, hexadecyl octanoate, isooctane Cetyl Isononate, Isononyl Isononanoate, Diisopropyl Sebacate, Isopropyl Palmitate, 2-Ethylhexyl Palmitate, Cetyl Ethylhexanoate, Butyl Stearate, Isocetyl Isostearate, Hexyl Laurate, Decyl Oleate, Fatty Acids (C10-30) (Cholesteryl/Lanosteryl Esters, Lauryl Lactate, Octyldodecyl Lactate, Wool Acetate fat, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, lanolin derivatives, etc.

Silicone oil is a synthetic polymer in which silicon and oxygen linked by organic groups are linked to each other by chemical bonding. For example, dimethylpolysiloxane (INCI name: dimethicone), dimethylpolysiloxane having a hydroxyl end group (INCI name: dimethiconol), Methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether modified siloxane, high polymer siloxane with an average degree of polymerization of 650-10000, Amino modified siloxane, betaine modified siloxane, alkyl modified siloxane, alkoxy modified siloxane, mercapto modified siloxane, carboxyl modified siloxane, fluorine modified silicon Oxygen, etc.

Among the above, examples of amino-modified silicones include: aminopropylmethylsiloxane-dimethylsiloxane copolymer (INCI name: aminopropyldimethicone), aminoethyl Aminopropylsiloxane-dimethylsiloxane copolymer (INCI name: amodimethicone), aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer ( INCI name: trimethylsilyl amodimethylsiloxane), etc.

The total content of oily components in the oxidative hair dye composition is not particularly limited, but is preferably 0.1 to 30% by mass. The lower limit is more preferably 0.5% by mass or more, particularly preferably 1% by mass or more. The upper limit is more preferably 20% by mass or less, particularly preferably 10% by mass or less.

<Surfactant>

Examples of the surfactant include nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants.

In addition, in the following description, POE represents a polyoxyethylene chain, POP represents a polyoxypropylene chain, and the number in parentheses after that represents the added mole number. In addition, the number in parentheses after an alkyl group represents the carbon number of a fatty acid chain.

Examples of nonionic surfactants include POE alkyl ethers, POE alkylphenyl ethers, POE·POP alkyl ethers, POE sorbitan fatty acid esters, and POE monofatty acid esters. , POE glycerin fatty acid esters, polyglycerin fatty acid esters, monoglycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, alkyl polyglycosides, etc. Specific examples of POE alkyl ethers include: POE lauryl ether, POE cetyl ether, POE stearyl ether, POE behenyl ether, POE lanolin, POE phytosterol wait.

The content of the nonionic surfactant in the oxidative hair dye composition is not particularly limited, but is preferably 0.001 to 40% by mass. The lower limit is more preferably 0.01% by mass or more, particularly preferably 0.05% by mass or more. The upper limit is more preferably 30% by mass or less, particularly preferably 20% by mass or less.

As the cationic surfactant, for example, monoalkyl type quaternary ammonium salt, dialkyl type quaternary ammonium salt, trialkyl type quaternary ammonium salt, benzalkonium type quaternary ammonium salt, monoalkyl ether type Alkyl quaternary ammonium salts such as quaternary ammonium salts, alkyl amine salts, fatty amide salts, tertiary amine salts containing esters, amine salts such as Arcovel type tertiary amine salts, alkyl pyridinium salts, alkyl Cyclic quaternary ammonium salts such as isoquinolinium salts, phenethylammonium chloride, and the like.

It is preferably an alkyl quaternary ammonium salt, more preferably a monoalkyl type quaternary ammonium salt, a dialkyl type quaternary ammonium salt, and particularly preferably a monoalkyl type quaternary ammonium salt.

As the monoalkyl type quaternary ammonium salt, for example, dodecyltrimethylammonium chloride, dodecyltrimethylammonium bromide, alkyl(16,18)trimethylammonium chloride , cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium saccharin, octadecyl trimethyl ammonium chloride, octadecyl bromide Trimethylammonium, Behenyltrimethylammonium Chloride, Octadecyltrimethylammonium Saccharin, Alkyl(28) Trimethylammonium Chloride, DiPOE(2) Oleyl Methyl Chloride Diethylammonium chloride, diPOE octadecylmethylammonium chloride, POE(1)POP(25) diethylmethylammonium chloride, POP methyldiethylammonium chloride, methacryloyloxyethyl ammonium chloride trimethylammonium, behenyltrimethylammonium methylsulfate, etc. Particularly preferred are octadecyltrimethylammonium chloride, alkyl(16,18)trimethylammonium chloride, and cetyltrimethylammonium chloride.

As dialkyl type quaternary ammonium salt, for example, can enumerate: Chloride dialkyl (12-15) dimethyl ammonium, chloride dialkyl (12-18) dimethyl ammonium, chloride dialkyl (14-18)Dimethylammonium, dicocoyldimethylammonium chloride, hexacyldimethylammonium chloride, octadecyldimethylammonium chloride, isostearyl chloride Alkyl dodecyl dimethyl ammonium, etc.

The content of the cationic surfactant in the oxidative hair dye composition is not particularly limited, but is preferably 0.001 to 10% by mass. The lower limit is more preferably 0.01% by mass or more, particularly preferably 0.05% by mass or more. The upper limit is more preferably 5% by mass or less, particularly preferably 3% by mass or less.

Examples of anionic surfactants include alkyl ether sulfates, POE alkyl ether sulfates, alkyl sulfates, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, and alkane sulfonic acids. Salts, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, alpha-fatty sulfonates, N-acyl amino acid type surfactants, phosphoric acid mono- or diester type surfactants, and sulfoesters . The counter ion of the anionic group of these surfactants is not particularly limited, and may be any one of sodium ion, potassium ion, and triethanolamine.

More specifically, sodium lauryl sulfate, sodium tetradecyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate , sodium octadecyl sulfate, POE sodium lauryl ether sulfate, POE lauryl ether sulfate triethanolamine, POE ammonium lauryl ether sulfate, POE sodium stearyl ether sulfate, stearyl methyl Sodium taurine, triethanolamine dodecylbenzenesulfonate, sodium tetradecyl sulfonate, sodium dodecyl phosphate, POE lauryl ether phosphate and its salts, N-lauroyl glutamate (Sodium lauryl glutamate, etc.), N-lauroylmethyl-β-alanine salt, N-acyl glycinate, N-acyl glutamate, lauric acid, myristic acid as higher fatty acids As well as salts of these higher fatty acids, 1 or 2 or more types can be used.

The content of the anionic surfactant in the oxidative hair dye composition is not particularly limited, but is preferably 0.001 to 10% by mass. The lower limit is more preferably 0.01% by mass or more, particularly preferably 0.05% by mass or more. The upper limit is more preferably 5% by mass or less, particularly preferably 3% by mass or less.

Amphoteric surfactants include amino acid type amphoteric surfactants and betaine type amphoteric surfactants.

As specific examples of amino acid type amphoteric surfactants, for example, N-dodecanoyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (lauroamphoacetic acid Na), 2 -Alkyl-N-carboxymethyl-N-hydroxyethylimidazolium betaine, undecyl hydroxyethylimidazolium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coconut fatty acid acyl-N Sodium '-carboxyethyl-N'-hydroxyethylethylenediamine, N-coconut fatty acid acyl-N'-carboxyethoxyethyl-N'-carboxyethylethylenediamine disodium, N-coconut oil Fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethylethylenediamine disodium, sodium dodecyldiaminoethylglycinate, palm oil fatty acid acyl-N-carboxyethyl-N-hydroxy Glycine-type amphoteric surfactants such as sodium ethylethylenediamine; aminopropionic acid-type amphoteric surfactants such as sodium dodecylaminopropionate, sodium dodecylaminodipropionate, and triethanolamine dodecylaminopropionate agent etc.

Specific examples of betaine-type amphoteric surfactants include, for example, coconut oil alkyl betaine, dodecyldimethylglycine betaine, tetradecyldimethylglycine betaine, Octyl Dimethyl Glycine Betaine, Sodium Octadecyl Dimethyl Betaine, Coconut Fatty Amidopropyl Betaine, Palm Fatty Amidopropyl Betaine, Lauryl Amidopropyl Betaine, Ricinamide Propyl betaine, octadecyl dihydroxyethyl betaine and other aminoacetic acid betaine type amphoteric surfactants; dodecyl hydroxy sultaine and other sulphobetaine type amphoteric surfactants, etc.

The content of the amphoteric surfactant in the oxidative hair dye composition is not particularly limited, but is preferably 0.001 to 10% by mass. The lower limit is more preferably 0.01% by mass or more, particularly preferably 0.05% by mass or more. The upper limit is more preferably 5% by mass or less, particularly preferably 3% by mass or less.

The total content of all surfactants in the oxidative hair dye composition is not particularly limited, but is preferably 0.01 to 50% by mass. The lower limit is more preferably 0.05% by mass or more, particularly preferably 0.1% by mass or more. The upper limit is more preferably 40% by mass or less, particularly preferably 30% by mass or less.

<Water-soluble polymer>

Examples of the water-soluble polymer include cationized polymer compounds, anionized polymer compounds, amphoteric polymer compounds, and nonionic polymer compounds. By containing a water-soluble polymer, the effect of improving hair dyeing property was observed. In addition, when self-foaming is performed by a redox reaction between a reducing agent composed of iodide and an oxidizing agent, good cells can be formed if a water-soluble polymer is contained.

The type of the cationized polymer compound is not limited, and it is a water-soluble compound containing an amino group or an ammonium group bonded to a polymer chain, or at least a dimethyl diallyl ammonium halide as a constituent unit, for example, Examples include: cationic cellulose derivatives, cationic starch, cationic guar gum derivatives, diallyl quaternary ammonium polymers, diallyl quaternary ammonium-acrylamide copolymers, and quaternized polyethylene Base pyrrolidone derivatives, etc.

Commercially available cationized cellulose derivatives include "Leoguard G" and "Leoguard GP" from Lion Corporation, and polymers JR-125, JR-400, JR-30M, and LR from Union Carbide. -400, LR-30M, etc. Examples of other cationized cellulose derivatives include hydroxyethyl cellulose dimethyl diallyl ammonium chloride, and examples of commercially available products include "Cellcoat H-100" and "Cellcoat L" from NATIONAL STARCH & CHEMICAL. -200", etc. As the cationized guar gum derivatives, for example, it is described in the publications of Japanese Patent Publication No. 58-35640, Japanese Patent Publication No. 60-46158, and Japanese Patent Application Publication No. 58-53996. RHONE-POULENC The company's JAGUAR C-13S, JAGUAR C-14S, JAGUAR C-17, JAGUAR C-210, JAGUAR C-162, and HICARE1000 are commercially available. As a commercial item of a diallyl quaternary ammonium salt polymer, "Marcot 100" (polydimethylmethylene pyridinium chloride) etc. of CALGON company are mentioned. Commercially available cationic diallyl quaternary ammonium salt-acrylamide copolymers include "Marcot 2200" and "Marcot 550" from CALGON Corporation. The quaternized polyvinylpyrrolidone derivative is preferably a compound with a molecular weight of 10,000 to 2 million, and commercially available products include "Gafucoat 734", "Gafucoat 755", and "Gafucoat 755N" from ISP Japan Co., Ltd.

The type of anionized polymer compound is not limited, for example, acrylic acid-acrylamide-ethyl acrylate copolymer, acrylic acid-acrylamide-ethyl acrylate copolymer potassium salt solution, alkyl acrylate-alkyl methacrylate -Diacetone acrylamide-methacrylic acid copolymer fluid, acrylic acid-methacrylate alkyl ester copolymer, acrylic resin alkanolamine fluid, carboxyvinyl polymer, hydroxypropyl acrylate, butylaminoethyl methacrylate, Copolymer of octyl acrylate, vinyl acetate-crotonic acid copolymer, vinyl acetate-crotonic acid-vinyl neodecanoate copolymer, vinyl acetate-crotonic acid-vinyl propionate copolymer, methylethylene Base ether-monobutyl maleate copolymer, etc.

The type of amphoteric polymer compound is not limited, for example, N-methacryloyl ethyl N, N-dimethylammonium α-N-methylcarboxybetaine-butyl methacrylate copolymer (commercially Commercial name: "Ukafomar AM-75"; manufactured by Mitsubishi Chemical Corporation), hydroxypropyl acrylate-butylaminoethyl methacrylate-octyl amide acrylic acid copolymer (commercially available under the trade name: "Anfoma 28-4910"; NATIONAL STARCH Co.), dimethyldiallyl ammonium chloride-acrylic acid copolymer (commercially available under trade names: "Marcot 280", "Marcot 295"; manufactured by CALGON Co.), dimethyldiallyl ammonium chloride Terpolymer of ammonium-acrylamide-acrylic acid (commercially available under trade names: "Marcot Plus 3330", "Marcot Plus 3331"; manufactured by CALGON Corporation), acrylic acid-methyl acrylate-chlorinated methacrylamidopropyl trimethyl Ammonium radical copolymer (commercially available under the trade name: "Marcot 2001"; manufactured by CALGON Corporation) and the like.

The type of the nonionic polymer compound is not limited, and examples thereof include natural, semi-synthetic, and synthetic compounds. Examples of natural nonionic polymer compounds include cellulose, guar gum, agar, starch, hydrolyzed starch, and dextran. In addition, examples of semi-synthetic nonionic polymer compounds include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose, and carboxymethyl cellulose. Dextran and carboxymethyl chitin, etc. Moreover, examples of synthetic nonionic polymer compounds include polyethylacrylate, polyacrylamide, polyethylene glycol, polypropylene glycol, polyoxyethylene-polyoxypropylene copolymer, polyvinylpyrrolidone, and the like.

The content of the water-soluble polymer in the oxidative hair dye composition is not particularly limited, but is preferably 0.01 to 20% by mass. The lower limit is more preferably 0.1% by mass or more, particularly preferably 1% by mass or more. The upper limit is more preferably 10% by mass or less, particularly preferably 5% by mass or less.

[How to use the oxidation hair dye composition]

The method of using the oxidative hair dye composition of the present invention for solving the first problem is characterized in that the oxidative hair dye composition is applied to the hair and then left for 30 minutes or more. Here, "after application to hair" means "after the step of applying the oxidative hair dye composition to hair is completed". According to the method of using the oxidative hair dye composition, after 30 minutes, the difference in the coloring of the dyed hair due to the length of the hair dyeing treatment time is reduced, so even if the hair dyeing treatment time is prolonged, the same shade can be applied.

The method of using the oxidation hair dye composition of the present invention for solving the second problem is a method including the following steps 1 to 4.

Step 1: Prepare an oxidative hair dye composition by mixing (A) oxidizing agent, (B) iodide, and (C) oxidative dye.

Step 2: Heat the oxidative hair dye composition by autogenous heating.

Step 3: Apply the heated oxidative hair dye composition to the hair.

Step 4: After applying the oxidative hair dye composition to the hair, leave it for more than 10 minutes.

It should be noted that "after applying the hair dye composition to the hair" in step 4 means "after the step of applying the oxidative hair dye composition to the hair".

In step 1, the operation of mixing the agents comprising each component can be mixed by any method, for example, can include: putting each agent into a container and shaking the container for mixing; A method of mixing; a method of mixing with a coating tool such as a brush, etc.

In step 3, the operation of applying the oxidative hair dye composition to the hair can be applied by any method, for example, it can be enumerated: the method of applying the oxidative hair dye composition to the hair by applying tools such as brushes and combs; How to apply it to the hair by hand. From the viewpoint of suppressing uneven application, a method of applying to hair with a brush is preferred, and from the viewpoint of ease of application operation, a step of applying to hair with gloved hands is preferred.

In addition, in step 3, the temperature of the oxidative hair dye composition when applied to the hair is preferably 28-50°C. The lower limit is more preferably 30°C or higher, particularly preferably 35°C or higher. The upper limit is more preferably 48°C or lower, particularly preferably 45°C or lower.

The temperature of the oxidative hair dye composition in step 4 is preferably 28-50°C. The lower limit is more preferably 30°C or higher, particularly preferably 35°C or higher. The upper limit is more preferably 48°C or lower, particularly preferably 45°C or lower. In addition, it is preferable to keep this temperature for 30 minutes or more.

Example

(first embodiment)

The oxidation hair dye composition of the present invention for solving the first problem will be specifically described by way of the following first examples, but the technical scope of the present invention is not limited to these examples.

[Preparation of the oxidation hair dye composition of the first embodiment]

A two-part oxidation hair dye composition consisting of the first part of the composition shown in Tables 1 and 2 and the second part of the composition shown below was prepared.

<Second dose>

[Evaluation method]

<Hair Dyeing (1)>

(Hair dye treatment method)

The first agent shown in Tables 1 and 2 was mixed with the above-mentioned second agent at a ratio of 1:1 to prepare an oxidation hair dye composition. The oxidative hair dye composition was applied to white hair tresses (bath ratio 1:1), hair tresses were left to stand at 30°C for 40 minutes (hair dyeing treatment time was 40 minutes), and hair tresses were left to stand at 30°C for 60 minutes. Bundle (60 minutes of hair dyeing treatment time). Each tress of hair treated for the prescribed hair dyeing treatment time was washed with water, rinsed with shampoo, and the oxidative hair dye composition was rinsed away. Next, apply conditioner to each tress. Rinse each tress, rinse off the conditioner, towel-dry each tress and blow dry.

(Evaluation method of hair dyeing property (1))

As described above, regarding the hair tresses after the dyeing treatment, the depth of the colored color was judged visually. The determination method is to set the coloring depth of the hair tresses with the hair dyeing treatment time of 40 minutes in Example 1-1 as "0", compare the hair tresses with the coloring depths, and score according to the following criteria.

+5: Intensely dark compared to blank.

+4: Colored slightly darker than +3 compared to blank.

+3: Colors are dark compared to blanks.

+2: Coloring is slightly darker than +1 compared to the blank.

+1: The coloring is slightly darker compared to the blank.

-1: Slightly shallower than blank.

-2: Coloring is slightly lighter than -1 compared to blank.

-3: Coloring is lighter than blank.

-4: Coloring is slightly lighter than -3 compared to blank.

-5: Coloring is extremely light compared to blank.

In addition, for each of the examples and comparative examples, the difference in coloring depth between the hair dyeing treatment time of 40 minutes and the hair dyeing treatment time of 60 minutes (the score of "hair dyeing treatment time of 60 minutes - the score of hair dyeing treatment time of 40 minutes") was calculated. Absolute value), the case where the difference is "0" is set as "Evaluation ◎", the case of "1" is set as "Evaluation ○", the case of "2" is set as "Evaluation △", and the case of "3 or more " is set to "Evaluation ×".

The evaluation results are shown in Tables 1 and 2 in the lower row.

[Table 1]

Table 1

As can be seen from Table 1, in Examples 1-1 to 1-3, since the oxidative hair dye composition contains (c1) 0.05% by mass or more of m-aminophenol and (B) potassium iodide, the hair dyeing treatment time is 40 minutes and 60 minutes. There is no difference in the color depth in minutes, and it is observed that a certain hair dyeing effect is shown after the prescribed hair dyeing treatment time. On the other hand, in Comparative Examples 1-2 and 1-3, since the content of (c1) m-aminophenol was less than 0.05% by mass, the dyed color became lighter as the hair dyeing treatment time elapsed.

In addition, in Comparative Example 1-1, since (B) potassium iodide was not contained, the dyeing result became darker as the hair dyeing treatment time elapsed.

It should be noted that, as shown in Examples 1-2 and 1-3, even if the content of coupling agents other than (c1) m-aminophenol and dye intermediates is reduced, as in Example 1-1, it is also observed that After the specified hair dyeing treatment time, it shows a certain hair dyeing effect. That is, it can be said that this effect is a characteristic effect of (c1) m-aminophenol.

[Table 2]

Table 2

As can be seen from Examples 1-1, 1-4, and 1-5 in Table 2, the content of (B) iodide in the oxidation hair dye composition is 0.05% by weight or more, and an excellent effect is observed.

In addition, as can be seen from Examples 1-1, 1-6, and 1-7 in Table 2, the ratio (c1/C) of the content of (c1) m-aminophenol to the total content of (C) oxidation dye is 0.05 or more, Excellent results were observed.

In addition, as can be seen from Examples 1-1, 1-8, and 1-9 in Table 2, when the content of the alkali agent is large, excellent effects are observed, and the content of the alkali agent in the oxidation hair dye composition is 0.3 A particularly excellent effect was observed at mmol/g or more. In addition, (*) in a table|surface represents an alkali agent.

(second embodiment)

The oxidation hair dye composition of the present invention for solving the second problem will be concretely described by the following second example, but the technical scope of the present invention is not limited to these examples.

[Preparation of the oxidation hair dye composition of the second embodiment]

The oxidation hair dye composition of the 2-part formula which consists of the 1st part of the composition shown in the following Table 3-5, and the 2nd part of the composition shown below was prepared.

<Second dose>

[Evaluation method]

<temperature change>

Put the first agent shown in Table 3-5 and the above-mentioned second agent in a thermostat at 25°C, and adjust the temperature to 25°C.

Next, using a brush, the temperature-adjusted first agent (10 g) and the second agent (10 g) were mixed to prepare an oxidation hair dye composition (20 g). After mixing, the oxidized hair dye composition was placed in a thermostat at 25° C., and the temperature of the oxidized hair dye composition was measured 10 minutes, 20 minutes, and 30 minutes after mixing.

In addition, the average value of the temperature at each time was calculated, and the difference between the average value and the temperature (25° C.) before mixing was obtained, and the difference was defined as the rising temperature.

Regarding the temperature and rising temperature at each time, the temperature change was evaluated based on the following criteria. In addition, the evaluation result is described in the lower row of Table 3-5.

Evaluation 5: The temperatures at each time were all 28° C. or higher, and the rising temperature was 5° C. or higher.

Evaluation 4: The temperatures at each time were all 27° C. or higher, and the rising temperature was 2.5° C. or higher.

Evaluation 3: All the temperatures at each time were 26° C. or higher, and the rising temperature was 1° C. or higher.

Evaluation 2: The arbitrary temperature at each time is less than 26°C, and the rising temperature is 1°C or more.

Evaluation 1: The rising temperature is less than 1°C.

<Hair Dyeing (2)>

(Hair dye treatment method)

Mix the first agent shown in Table 3-5 with the above second agent at a ratio of 1:1 to prepare an oxidative hair dye composition. Using this oxidative hair dye composition, a hair dyeing treatment was performed on the white hair tresses (bath ratio 1:1, hair dyeing treatment time 30 minutes). After washing the dyed hair, each tress of hair was rinsed with shampoo to rinse off the oxidative hair dye composition. Next, apply conditioner to each tress. Rinse each tress, rinse off the conditioner, towel-dry each tress and blow dry.

(Evaluation method of hair dyeing property (2))

As mentioned above, about the hair tresses after a hair dyeing process, the hair dyeing property was evaluated by the following reference|standard. In addition, the evaluation result is described in the lower row of Table 5.

Evaluation 3: Very excellent hair coloring state.

Evaluation 2: Good hair coloring state.

Evaluation 1: Hair coloring state is poor.

[table 3]

table 3

As seen from Table 3, in Examples 2-1 to 2-4, since 0.05% by mass or more of (B) potassium iodide was contained in the oxidative hair dye composition, an excellent effect was observed on increasing the temperature of the oxidative hair dye composition. In addition, when comparing Example 2-1 with Comparative Example 2-2, in Example 2-1, the evaluation of the temperature change was "5" by including 0.2% by mass of (B) potassium iodide in the oxidation hair dye composition. , on the other hand, in the comparative example 2-2 which added the sodium sulfite of the same content, the evaluation of the temperature change was "3". That is, potassium iodide has a higher calorific value than sodium sulfate, and it has been confirmed that it has an excellent temperature-raising effect. In addition, in Example 2-1, the temperature rose after 10 minutes, whereas in Comparative Example 2-2, the temperature decreased after 10 minutes. That is, the effect of potassium iodide maintaining high temperature for a long time was also observed.

In addition, the oxidation hair dye composition of Example 2-1 containing potassium iodide was superior in hair dyeing property compared to the oxidation hair dye composition of Comparative Example 2-2 containing sodium sulfite.

In addition, when comparing Example 2-2 with Comparative Example 2-2, in Comparative Example 2-2, 0.2% by mass of sodium sulfite is contained in the oxidative hair dye composition, whereas in Example 2-2, although oxidized (B) contained only 0.05% by mass of potassium iodide in the hair dye composition, but the temperature change evaluations were all "3". That is, it can be said that the content of the reducing agent can be reduced by using potassium iodide.

[Table 4]

Table 4

In Example 2-5 of Table 4, compared to the formulation of Example 2-1, an oxidation hair dye composition in which the content of (C) oxidation dye excluding p-aminophenol was increased was prepared. As a result, in Example 2-5, the evaluation of the temperature change reached "3". That is, when the content of the (C) oxidation dye is reduced, it can be confirmed that the effect of increasing the temperature of the (B) potassium iodide is increased.

On the other hand, in Example 2-6, compared to the formulation of Example 2-4, only (c2) p-aminophenol was added to (C) oxidation dye to prepare an oxidation hair dye composition. As a result, in Example 2-6, the temperature at each time was higher than that in Example 2-4. That is, when (c2) p-aminophenol was added, the effect of accelerating the temperature rise of (B) potassium iodide was confirmed.

In addition, in Examples 2-7, lactic acid was added to the formulation of Examples 2-6, and the pH of the oxidation hair dye composition was adjusted to 8.6. As a result, in Example 2-7, although the temperature after 10 minutes was higher than that of Example 2-6, it decreased thereafter, and reached a temperature lower than that of Example 2-6 after 20 minutes. That is, by adjusting the pH of the oxidative hair dye composition to 9 or more, the action of promoting the effect of maintaining the high temperature of (B) potassium iodide was confirmed.

[table 5]

table 5

In Examples 2-8 of Table 5, compared to the formulation of Example 2-1, an oxidative hair dye composition in which (D) higher alcohol was reduced was prepared. As a result, in Example 2-8, the evaluation of the temperature change was "4". Moreover, the result of evaluation of hair dyeing property was "3" in Example 2-1, but it was "2" in Example 2-8. That is, by adding a higher alcohol, the temperature raising effect of (B) potassium iodide is accelerated, and it can also be said that hair dyeing properties are improved.

In addition, in Example 2-9, compared to the formulation of Example 2-1, an oxidation hair dye composition not including a water-soluble polymer was prepared. As a result, in Example 2-9, the evaluation of the temperature change was equivalent to that of Example 2-1, but the evaluation of hair dyeing property was "2". That is, hair dyeing properties are improved by adding a water-soluble polymer.

industrial availability

The oxidative hair dye composition of the present invention can be used as a hair dye to dye body hair such as human hair, beard, eyebrows, and leg hair. In addition, it can also be used to dye the body hair of animals such as pets.

The oxidative hair dye composition of the present invention can be used in hair dyes for coloring in places such as beauty salons and barber shops, and hair dyes for self-coloring.

In addition, the method of using the oxidative hair dye composition of the present invention can be used for hair dyeing treatment and self-coloring in places such as beauty salons and barber shops.

Claims (5)

1. An oxidative hair dye composition, which is a multi-agent oxidative hair dye composition containing (A) oxidizing agent, (B) iodide, (C) oxidation dye, characterized in that, The (c) oxidation dye comprises (c1) m-aminophenol, The content of the (c1) m-aminophenol is 0.05% by mass or more. 2. The oxidation hair dye composition according to claim 1, wherein the ratio (c1/C) of the content of the (c1) m-aminophenol to the total content of the (C) oxidation dye is 0.01 -1. 3. The oxidative hair dye composition according to claim 1 or 2, characterized in that it also contains an alkali agent, and the content of the alkali agent is 0.05-2 mmol/g. 4. The oxidative hair dye composition according to claim 1, characterized in that it is an oxidative hair dye composition containing (A) oxidant, (B) iodide, (C) oxidation dye, and the oxidative hair dye composition The composition comprises a first agent comprising (C) an oxidation dye and a second agent comprising (A) an oxidizing agent, the first agent and the second agent are mixed and applied to hair, or the The first agent and the second agent are mixed on the hair and applied to the hair, and the ratio (c1/C) of the content of the (c1) m-aminophenol to the total content of the (C) oxidation dye is: 0.01-0.3. 5. A method for using an oxidative hair dye composition, which is the method for using the oxidative hair dye composition according to claim 1, characterized in that, after applying the oxidative hair dye composition to the hair, leave it for 30 minutes above.