WO2017187983A1 - Oxidative hair dye composition - Google Patents

Abstract

Causing a multi-part oxidative hair dye composition containing (A) an oxidizing agent, (B) an iodide, and (C) an oxidative dye to contain 0.05 mass% or more of (c1) m-aminophenol minimizes differences in the hair dye finish in the length of hair dye treatment time and therefore makes it possible to obtain an equivalent finish without adhering strictly to the hair dye treatment time after a predetermined hair dye treatment time has elapsed. Causing a multi-part oxidative hair dye composition containing (A) an oxidizing agent, (B) an iodide, and (C) an oxidative dye to contain 0.05 mass% or more of (B) iodide also generates a greater calorific value by the oxidation-reduction reaction of the iodide and oxidizing agent and therefore makes it possible to raise the temperature of the oxidative hair dye efficiently by a small amount of reducing agent.

Description

Oxidative hair dye composition

The present invention relates to an oxidative hair dye composition for dyeing hair and the like. Specifically, the present invention relates to a multi-component oxidative hair dye composition containing iodide.
More specifically, the present invention relates to an oxidative hair dye that maintains a certain hair dyeability after a predetermined hair dyeing time, and that can reduce the difference in the finish of the hair due to the length of the hair dyeing time. It relates to a composition.
In another aspect, the present invention relates to an oxidative hair dye composition that is heated by self-heating when a plurality of agents of a multi-component oxidative hair dye composition are mixed.

The oxidative hair dye composition is a hair dyed by coloring an oxidized dye composed of a dye intermediate and a coupler on the hair. A general oxidative hair dye composition is composed of a first agent containing an oxidative dye and a second agent containing an oxidant, and these agents are mixed before use on the hair.

In order to promote oxidation of oxidation dyes, a method of adding an 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 no iodide is added.

For example, Patent Document 1 discloses that a composition containing iodide and 5,6-dihydroxyindole is applied to keratin fibers, and then a composition containing hydrogen peroxide is applied at a pH of 2 to 5. A dyeing method is disclosed. 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, since two types of compositions are applied to hair, respectively, a great amount of time and labor are required for the hair dyeing treatment.

On the other hand, a method for preparing an oxidation hair dye composition by mixing iodide, an oxidizing agent and an oxidation dye before applying to the hair, and applying this oxidation hair dye composition to the hair has been developed. (Patent Documents 3 and 4). According to this method, in addition to the effect that it can be applied to hair in a single step, the effect that it is possible to develop a strong color with a low concentration of oxidative dye is also recognized.

In addition, as a technique for improving the hair dyeing power of an oxidative hair dye composition, a method of heating the oxidative hair dye composition by causing self-heating when mixing the first agent and the second agent is known. ing. For example, Patent Document 5 describes a hair dye composition characterized in that heat is generated when mixed in a multi-component hair dye. As a heat generation principle, oxidation-reduction reaction, dissolution reaction, The use of a sum reaction or the like is disclosed. In the invention described in Patent Document 5, sodium sulfite is used as a reducing agent used for the oxidation-reduction reaction.

JP 62-238877 A Japanese Patent No. 2595076 JP-A-5-194162 JP 2004-59592 A JP 2000-86471 A

(First issue)
In a normal oxidative hair dye composition that does not contain iodide, the shade of the hair finish changes depending on the length of time after application to the hair (hereinafter referred to as “hair dyeing treatment time”). The longer the treatment time, the darker the hair color. Therefore, the hair dyeing treatment time is adjusted in order to finish the desired hair density. However, when the shade of the finish changes greatly depending on the hair dyeing processing time, there is a problem that the finish is lighter than the desired color tone or darker.

On the other hand, the oxidation hair dye composition containing iodide finished in a predetermined color in a short hair dyeing time, but a phenomenon that the color lightened when left further was observed. 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 problem of the present invention is that in a multi-component oxidation hair dye composition containing iodide, the difference in the finish of the hair dyeing due to the length of the hair dyeing treatment time is suppressed, and the hair dyeing treatment time is strict. It is to provide an oxidative hair dye composition that can be finished in a predetermined color without complying with the above.

(Second problem)
In oxidative hair dye compositions that are heated by self-heating and improve hair dyeing power, sodium sulfite has been conventionally used as a reducing agent. However, since the calorific value is small, it is necessary to add a large amount of reducing agent. It was. If a large amount of a reducing agent is added, the prescription of other raw materials may be restricted in consideration of stability or the like, or the amount of the oxidizing agent for the second agent may need to be increased.

Therefore, the second problem of the present invention is to search for a reducing agent having a large calorific value in a multi-component oxidative hair dye composition that self-heats when a plurality of agents are mixed, and is efficient with a small amount of reducing agent. Another object is to increase the temperature of the oxidative hair dye composition.

(Means for solving the first problem)
As a result of intensive studies on the first problem, the inventors have determined that the hair dyeing treatment composition includes a certain amount of metaaminophenol in the oxidative hair dye composition containing iodide. The present invention was completed by finding that the change in shading of the hair was reduced.
That is, this invention is the following oxidative hair dye composition and its usage method.

The oxidative hair dye composition of the present invention for solving the first problem described above is (A) an oxidant, (B) an iodide, and (C) an oxidative hair dye composition containing an oxidative dye. (C) The oxidation dye contains (c1) metaaminophenol, and the content of the (c1) metaaminophenol is 0.05% by mass or more.

According to this oxidation hair dye composition, since it contains iodide, hair can be dyed quickly. Moreover, since the oxidizing agent and the oxidizing dye are mixed and applied to the hair, the step of applying the oxidizing hair dye composition to the hair can be simplified.
Furthermore, by containing metaaminophenol, the phenomenon that the color of the hair becomes light after elapse of a predetermined hair dyeing treatment time in the oxidative hair dye composition containing iodide is suppressed, and the predetermined hair dyeing treatment time elapses. Even afterwards, it is possible to maintain a certain hair dyeing property.

Moreover, according to one embodiment of the oxidative hair dye composition of the present invention for solving the first problem, the ratio of the content of (c1) metaaminophenol to the total content of (C) oxidative dye (C1 / C) is characterized by being 0.01 to 1.
According to this characteristic, the effect | action of suppressing the change of the hair dyeing property by the length of the hair dyeing processing time can be exhibited more.

Further, according to one embodiment of the oxidative hair dye composition of the present invention for solving the first problem, the composition further comprises an alkali agent, and the content of the alkali agent is 0.05 to 2 mmol / g. It has the characteristic of being.
According to this characteristic, the effect | action of suppressing the change of the hair dyeing property by the length of the hair dyeing processing time can be exhibited more.

The method of using the oxidative hair dye composition of the present invention for solving the first problem is characterized by leaving the oxidative hair dye composition of the present invention on hair for 30 minutes or more.
According to the method of using the oxidative hair dye of the present invention for solving the first problem, a constant hair dyeability can be maintained after 30 minutes or more, so that the hair dyeing due to the length of the hair dyeing treatment time can be maintained. Differences in finish can be suppressed.

(Means for solving the second problem)
As a result of intensive studies on the second problem, the inventors have not only been able to rapidly dye hair by using iodide as a reducing agent, but the temperature of the oxidative hair dye composition further increases. As a result, the present invention was completed.
That is, this invention is the following oxidative hair dye composition and its usage method.

The oxidative hair dye composition of the present invention for solving the second problem is a multi-component oxidative hair dye composition containing (A) an oxidant, (B) an iodide, and (C) an oxidative dye. It is a thing, Comprising: Content of the said (B) iodide is 0.05 mass% or more, It is characterized by the above-mentioned.

When iodide is used as a reducing agent, the calorific value is larger than that of conventional sodium sulfite. Therefore, according to the oxidative hair dye composition of the present invention for solving the second problem, the conventional oxidative hair dye composition is used. The temperature can be increased more efficiently than the product.
Furthermore, the effect that the temperature of the oxidative hair dye composition heated up was maintained for a long time by using iodide was also recognized. According to this effect, since it is maintained at a high temperature while being applied to the hair and subjected to the hair dyeing treatment, the hair dyeing power of the oxidative hair dye composition is improved.

Moreover, according to one embodiment of the oxidative hair dye composition of the present invention for solving the second problem, (D) a higher alcohol is contained.
According to this feature, further increase in the temperature of the oxidative hair dye composition and improvement in hair dyeing properties are recognized.

Moreover, according to one embodiment of the oxidative hair dye composition of the present invention for solving the second problem, it further has a feature of further containing a water-soluble polymer.
According to this feature, further improvement of the hair dyeing property of the oxidative hair dye composition is recognized.

In addition, according to one embodiment of the oxidative hair dye composition of the present invention for solving the second problem, the (C) oxidative dye has the feature of containing (c2) p-aminophenol. .
According to this feature, further increase in the temperature of the oxidative hair dye composition is observed.

Further, according to one embodiment of the oxidative hair dye composition of the present invention for solving the second problem, the oxidative hair dye composition has a feature that the pH is 8 to 12.
According to this feature, further increase in the temperature of the oxidative hair dye composition is observed.

The method for using the oxidative hair dye composition of the present invention for solving the second problem includes the following steps.
Step 1: (A) an oxidizing agent, (B) an iodide, and (C) a step of preparing an oxidation hair dye composition by mixing an oxidation dye,
Process 2: The process of heating an oxidative hair dye composition by self-heating,
Process 3: The process of apply | coating the heated oxidative hair dye composition to hair,
Process 4: The process of leaving for 10 minutes or more after applying an oxidative hair dye composition to hair.

According to the method of using the oxidative hair dye composition of the present invention for solving the second problem, a reducing agent comprising iodide is used, so that a higher temperature oxidative hair dye composition is prepared. can do. Furthermore, since this oxidative hair dye composition maintains a high temperature even after being left for 10 minutes or more, it can provide a hair dyeing treatment method having excellent hair dyeing properties.

According to the oxidative hair dye composition of the present invention for solving the first problem, since the difference in the finish of the hair dyeing due to the length of the hair dyeing treatment time is reduced, the hair dyeing treatment time is strictly observed. Even if not, it can be finished in a predetermined color.

According to the oxidative hair dye composition of the present invention for solving the second problem, a large calorific value is generated by the oxidation-reduction reaction between the reducing agent made of iodide and the oxidizing agent. The oxidative hair dye composition can be efficiently heated to a high temperature.
Therefore, by adding a large amount of the reducing agent, adverse effects due to the addition of the reducing agent such as limiting the prescription of other raw materials or increasing the amount of the oxidizing agent of the second agent can be reduced.

Next, the best mode for carrying out the present invention will be described.
[Oxidative hair dye composition]
The oxidative hair dye composition of the present invention is an oxidative hair dye composition containing (A) an oxidant, (B) an iodide, and (C) an oxidative dye.

The oxidative hair dye composition distributes (A) an oxidant and (C) an oxidative dye as separate agents, and (C) causes the oxidative dye to develop color on the hair. Typically, a two-agent type consisting of (C) a first agent containing an oxidative dye and (A) a second agent containing an oxidant is typical, but a multi-agent type consisting of three or more agents. May be.

In addition, what is necessary is just to contain the (B) iodide of this invention in the agent different from the 2nd agent containing an oxidizing agent. For example, it may be contained in (C) the first agent containing an oxidative dye, or (B) only iodide may be separated as another agent. From the viewpoint of simplification of the mixing operation, it is preferable that the first agent is contained in a two-agent system.

(A) Oxidizing agent, (B) iodide, (C) oxidizing dye are mixed at the time of use to prepare an oxidizing hair dye composition. The mixing operation may be performed before or after application to the hair. For example, it may be mixed immediately before application to hair, or the first agent and the second agent may be taken in a comb and mixed on the hair using a comb or the like. Since iodide acts as a reducing agent, when it is mixed with an oxidizing agent, heat is generated by an oxidation-reduction reaction, and the oxidative hair dye composition is heated. Therefore, when it mixes before applying to hair, the oxidative hair dye composition is heated before application and the discomfort by the cold feeling at the time of adhering to a scalp can be suppressed.

The temperature of the oxidative hair dye composition is not particularly limited, but the maximum temperature is preferably 28 to 50 ° C, more preferably 30 to 48 ° C, and particularly preferably 35 to 45 ° C. The temperature of the oxidative hair dye composition can be set within a predetermined range by adjusting the content of the reducing agent composed of the oxidant and iodide. By adjusting the temperature of the oxidative hair dye composition to 35 to 45 ° C. at the time of application to hair, discomfort due to a cool feeling when adhering to the scalp is suppressed.

Further, from the viewpoint of maintaining the temperature of the heated oxidative hair dye composition for a long period of time, the average value of each temperature after 10 minutes, 20 minutes, and 30 minutes after the mixing operation is 28 to 45. It is preferably 0 ° C., more preferably 30 to 42 ° C. By setting it as this range, since the temperature of the oxidation hair dye composition during a hair dyeing process is maintained high, there exists an effect that it is excellent in hair dyeing property.
Particularly preferred is an oxidative hair dye composition which has a temperature of 35 to 45 ° C. when applied to hair and this temperature continues for 30 minutes or more.

The form of each agent forming the oxidative hair dye composition of the present invention may be any form, and examples thereof include liquid, cream, and gel. Moreover, the oxidative hair dye composition after mixing each agent may be a dosage form having a coating property such as liquid, cream, gel, etc., and some agents include powders and solids. It may be. Further, all agents may be used by dissolving in water as powder or solid. In the case of a creamy dosage form, self-foaming occurs due to the oxidation-reduction reaction of a reducing agent made of iodide, so that a self-foaming oxidative hair dye composition can be obtained. By self-foaming and forming a foam, there is an effect that it is excellent in applicability to hair.
Moreover, it is good also as foam form or mist form at the time of use. In the case of foaming, an aerosol foam container, a non-aerosol foam container, a shaking container or the like may be used. In the case of a mist, a nebulizer may be used. When the oxidative hair dye composition of the present invention is made into a foam type, there is an effect that the foam quality, foaminess and the like are improved.

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

Next, each component used in the oxidative hair dye composition of the present invention will be described in detail. In addition, about content of each component, when there is no notice in particular, content in the oxidative hair dye composition which mixed each agent is shown.

<(A) Oxidizing agent>
The oxidizing agent is a component contained in the second agent and may be a substance having an oxidizing power. The oxidizing agent has an action of oxidizing the oxidative dye to develop a color and an action of decomposing melanin inside the hair. Furthermore, (B) a substance having an action of generating heat by reacting with a reducing agent made of iodide. Specific examples include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, and sodium persulfate. Of sulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sulfate hydrogen peroxide adduct, phosphate hydrogen peroxide adduct, pyrophosphate Examples include hydrogen peroxide adduct, peracetic acid and its salt, performic acid and its salt, permanganate, bromate and the like. Among these, hydrogen peroxide is preferable. Further, persulfates such as ammonium persulfate, potassium persulfate and sodium persulfate may be contained as an oxidation aid.

The content of the oxidant in the oxidative hair dye composition is not particularly limited, but is, for example, 0.1 to 15% by mass, the lower limit is more preferably 1% by mass, and the upper limit is more preferably 9%. It is below mass%. When hydrogen peroxide is included as an oxidizing agent, ethylene glycol phenyl ether (phenoxyethanol), hydroxyethanediphosphonic acid, phosphoric acid, citric acid, or a salt thereof is added as a stabilizer for improving the stability. Is preferred.

<(B) Iodide>
Iodide is a compound containing iodine. For example, an alkali metal salt of iodide such as potassium iodide, sodium iodide or lithium iodide, or a compound such as hydrogen iodide, cesium iodide or silver iodide. In addition, an extract containing iodide such as iodized garlic extract can be used. Preferred is an alkali metal salt of iodide, more preferred is potassium iodide or sodium iodide, and particularly preferred is potassium iodide.

Iodide has the effect of promoting the color development of oxidation dyes. Therefore, an oxidation hair dye composition has an effect that hair treatment time is shortened by containing iodide.
The iodide content in the oxidative 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 oxidative dye. As a lower limit, More preferably, it is 0.05 mass% or more, Most preferably, it is 0.1 mass% or more. As an upper limit, More preferably, it is 3 mass% or less, Most preferably, it is 1 mass% or less.

In addition, iodide has the effect of reacting with an oxidizing agent to generate heat. Since the oxidation-reduction reaction with iodide has a large calorific value, there is an effect that the temperature of the oxidative hair dye composition can be efficiently increased with a small amount. Moreover, the temperature of the oxidative hair dye composition heated to high temperature can be maintained for a long time.

The iodide content 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 the amount is less than 0.05% by mass, the calorific value is small and the effect of increasing the temperature of the oxidative hair dye composition cannot be exhibited. More preferably, it is 0.1 mass% or more, More preferably, it is 0.15 mass% or more, Most 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, and particularly preferably 1% by mass or less.

From the viewpoint of imparting self-foaming property 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. That's it. By setting it to 0.2% by mass or more, a good souffle-like oxidative hair dye composition can be obtained.

<(C) Oxidative dye>
The oxidation dye is a dye that develops color by oxidative polymerization with an oxidizing agent (A). Oxidized dyes include dye intermediates and couplers. Dye intermediates are substances that develop color by their own oxidation, and couplers are substances that have various color tones when combined with dye intermediates.

Dye intermediates are dye precursors that are primarily o- or p-phenylenediamines or aminophenols, and are themselves typically colorless or weakly colored compounds.
Specifically, (c2) p-aminophenol, o-aminophenol, p-methylaminophenol, p-phenylenediamine, toluene-2,5-diamine (p-toluylenediamine), 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 salts thereof, sulfuric acid 2,2 ′-[(4-aminophenyl) imino] bisethanol and the like.

The type of the dye intermediate can be selected from one or more depending on the desired color tone of the hair. Further, the content thereof is not particularly limited. For example, in the oxidative hair dye composition, the total content of the dye intermediate is 0.01 to 5% by mass. As a lower limit, More preferably, it is 0.05 mass% or more, Most preferably, it is 0.1 mass% or more. As an upper limit, More preferably, it is 3 mass% or less, Most preferably, it is 1 mass% or less.

The dye intermediate preferably contains (c2) p-aminophenol. (C2) By containing p-aminophenol, the oxidation hair dye composition can be further heated in the action of increasing the temperature of the oxidation 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. As a lower limit, More preferably, it is 0.005 mass% or more, Most preferably, it is 0.01 mass% or more. As an upper limit, More preferably, it is 1 mass% or less, Most preferably, it is 0.5 mass% or less. When the content of p-aminophenol is small, the effect of increasing the temperature of p-aminophenol is not exhibited, and when the content of p-aminophenol is large, the temperature of the oxidative hair dye composition becomes high. There is a risk of too much.

Further, the ratio (c2 / C) of the content of (c2) p-aminophenol to the total content of (C) oxidative dye is not particularly limited, but is preferably 0.001 to 0.1. The lower limit is more preferably 0.005 or more, and particularly preferably 0.01 or more. The upper limit is more preferably 0.08 or less, and particularly preferably 0.05 or less. When c2 / C is small, the effect of increasing the temperature of p-aminophenol is not exhibited, and when c2 / C is large, the temperature of the oxidative hair dye composition may be too high.

The coupler mainly includes m-diamines, aminophenols or diphenols. Specifically, (c1) metaaminophenol, resorcin, catechol, pyrogallol, phloroglucin, gallic acid, hydroquinone, 5-amino- o-cresol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, toluene-3,4-diamine, α-naphthol, 2,6-diaminopyridine, Examples thereof include diphenylamine, 3,3′-iminodiphenyl, 1,5-dihydroxynaphthalene, tannic acid and salts thereof, 1-hydroxyethyl-4,5-diaminopyrazole sulfate and the like.

¡One or more types of couplers can be selected and used depending on the desired color of hair. Further, the content thereof is not particularly limited, but is, for example, 0.01 to 5% by mass as the total content of couplers in the oxidative hair dye composition. As a minimum, More preferably, it is 0.05 mass% or more, More preferably, it is 0.08 mass% or more, Most preferably, it is 0.1 mass% or more. As an upper limit, More preferably, it is 3 mass% or less, Most preferably, it is 1 mass% or less.

As the coupler, the oxidative hair dye composition preferably contains (c1) 0.05% by mass or more of metaaminophenol. The present inventor screened various oxidation dyes in order to solve the decrease in hair dyeability due to the extension of the hair dyeing treatment time in the oxidation hair dye composition containing iodide. (C1) Meta It has been found that when aminophenol is contained in an amount of 0.05% by mass or more, the hair dyeability is not lowered even if the hair dyeing treatment time is extended. In addition, (c1) the oxidation hair dye composition of the present invention containing 0.05% by mass or more of metaaminophenol has a hair dyeing treatment time as in a conventional oxidation hair dye composition not containing iodide. In contrast to the effect of extending the hair color when extended, it has been found to have a so-called auto-stop function of maintaining a certain hair dyeability after a predetermined hair dyeing time. If this action is used, even if the hair dyeing time is extended somewhat, the difference in the finished hair is small, so that it is possible to finish a predetermined color without strictly adhering to the hair dyeing time.

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

Further, the content (c1 / C) of (c1) metaaminophenol relative to the total content of (C) oxidation dyes is not particularly limited, but is preferably 0.005 to 1. The lower limit is more preferably 0.01 or more, and particularly preferably 0.05 or more. The upper limit is more preferably 0.5 or less, and particularly preferably 0.3 or less.

(C) The total content of the oxidation dye is not particularly limited, but is preferably 0.002 to 10% by mass. As a minimum, More preferably, it is 0.02 mass% or more, Most preferably, it is 0.2 mass% or more. As an upper limit, More preferably, it is 8 mass% or less, Most preferably, it is 6 mass% or less. When the total content of the oxidation dye (excluding p-aminophenol) is large, it has an action of suppressing the high temperature effect of the reducing agent made of iodide. This action can be used when the oxidative hair dye becomes too hot.

<Other ingredients>
The oxidative hair dye composition of the present invention may contain the following components as necessary in addition to the above components (A) to (C).
Examples of other components include alkali agents, direct dyes, oil components, surfactants, water-soluble polymers, antioxidants such as ascorbic acid and anhydrous sodium sulfite, preservatives such as phenoxyethanol and sodium benzoate, ethanol, and the like Organic solvents, sugars such as sorbitol and maltose, polyhydric alcohols such as polyethylene glycol and dipropylene glycol, chelating agents such as ethylenediamine hydroxyethyl triacetic acid trisodium dihydrate, hydroxyethane diphosphonate tetrasodium solution, sodium chloride, PH adjusters such as inorganic salts such as sodium carbonate, 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, ammonium bicarbonate Hair growth components, plant extracts, crude drug extracts, amino acids, peptides, urea, vitamins, fragrances, and ultraviolet absorbents, and the like.

<Alkaline agent>
The alkaline agent has an action of swelling hair and promoting penetration of a dye or an oxidizing agent. Examples of the alkaline agent include ammonia, alkanolamine, silicate, carbonate, bicarbonate, metasilicate, phosphate, basic amino acid, hydroxide and the like. Specifically, examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, aminomethylpropanol, and isopropylamine, and examples of the silicate include sodium silicate and potassium silicate. Examples of the carbonate include sodium carbonate, ammonium carbonate, magnesium carbonate, and guanidine carbonate. Examples of the bicarbonate include sodium bicarbonate and ammonium bicarbonate. Examples of the metasilicate include sodium metasilicate and potassium metasilicate. Illustrative examples of the phosphate include monoammonium phosphate, secondary ammonium phosphate, disodium monohydrogen phosphate, trisodium phosphate and the like, and basic amino acids include arginine, lysine and salts thereof. There are exemplified, as the hydroxides of calcium hydroxide, magnesium hydroxide and the like. Among these, ammonia and alkanolamine are preferable. The alkaline agent is usually contained in the first agent.

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

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

<Direct dye>
The direct dye is a compound having a color, and is a dye that dyes hair by adhering to or penetrating hair. Examples include acid dyes, basic dyes, natural dyes, nitro dyes, HC dyes, and disperse dyes. These direct dyes may be blended alone or in combination.

Examples of the acid dye include Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 227, Red No. 230 (1), Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Dai No. 205, Dai No. 207, Dai No. 402, Green No. 3, Green No. 204 Green 401, purple 401, blue 1, blue 2, blue 202, brown 201, black 401 and the like.

The basic dyes are Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 47, Basic Blue 99, Basic Brown 4, Basic Brown 16, and 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 Examples include Violet 1, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet11: 1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, Basic Yellow 57, Basic Yellow 87.

Examples of natural dyes include gardenia pigments, turmeric pigments, anato pigments, copper chlorophyllin sodium, paprika pigments, lac pigments, and henna.

Examples of the nitro dye include 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picramic acid, picric acid, and the like Examples of the salt can be exemplified.

The above 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, 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 Violet No.1, HC Violet 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.

The disperse dyes include Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 7, Disperse Orange 3, Disperse Red 11, Disperse Red 15, Disperse Red 17, Disperse Violet 1, Disperse Violet Disperse Violet 15 etc.

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

<Oil component>
Examples of the oil component include (D) higher alcohols, fats and oils, waxes, hydrocarbons, higher fatty acids, esters, silicone oils, fluorine oils, and the like. One or two or more of these oily components can be selected and used. By containing an oil component, hair dyeability can be improved, or the feel of hair (through a finger) can be improved.

<(D) Higher alcohol>
Examples of higher alcohols include cetyl alcohol (cetanol), stearyl alcohol, cetostearyl alcohol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, aralkyl alcohol, behenyl alcohol, lauryl alcohol, myristyl alcohol, 2-hexyldecanol, isostearyl. Examples thereof include alcohol, 2-octyldodecanol, decyltetradecanol, phytosterol, phytostanol, cholesterol, cholestanol, lanosterol and ergosterol.
By containing a higher alcohol, the effect of accelerating the temperature increase of the oxidative hair dye composition and improving the hair dyeing property is recognized.

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

Oils and fats are triglycerides, that is, triesters of fatty acids and glycerin. For example, olive oil, rosehip oil, camellia oil, shea fat, macadamia nut oil, almond oil, tea seed oil, sasanqua oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, beef fat, cacao butter, corn oil, peanut Oil, rapeseed oil, rice bran oil, rice germ oil, wheat germ oil, pearl barley oil, grape seed oil, avocado oil, carrot oil, castor oil, flaxseed oil, coconut oil, mink oil, egg yolk oil and the like.

ロ ウ Waxes are esters of higher fatty acids and higher alcohols. For example, beeswax (cane wax), candelilla wax, carnauba wax, jojoba oil, lanolin, whale wax, rice bran wax, sugar cane wax, palm wax, montan wax, cotton wax, bayberry wax, ibota wax, capock wax, shellac wax, and the like.

Hydrocarbon is a compound consisting of carbon and hydrogen. Examples thereof include liquid paraffin, paraffin, microcrystalline wax, petrolatum, isoparaffins, ozokerite, ceresin, polyethylene, α-olefin oligomer, polybutene, synthetic squalane, squalene, hydrogenated squalane, limonene, turpentine oil and the like.

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, undecylenic acid, linoleic acid, ricinoleic acid, lanolin fatty acid, etc. Is mentioned.

Esters are compounds obtained by a dehydration reaction between a fatty acid and an alcohol. For example, diisopropyl adipate, 2-hexyldecyl adipate, isopropyl myristate, myristyl myristate, cetyl octanoate, cetyl isooctanoate, isononyl isononanoate, diisopropyl sebacate, isopropyl palmitate, 2-ethylhexyl palmitate, Cetyl ethylhexanoate, butyl stearate, isocetyl isostearate, hexyl laurate, decyl oleate, fatty acid (C10-30) (cholesteryl / lanosteryl), lauryl lactate, octyldodecyl lactate, lanolin acetate, dipentaerythritol fatty acid ester, mono Examples thereof include N-alkyl glycol isostearate and lanolin derivatives.

Silicone oil is a synthetic polymer in which silicon with organic groups and oxygen are alternately linked by chemical bonds. For example, dimethylpolysiloxane (INCI name: dimethicone), dimethylpolysiloxane having hydroxy end groups (INCI name: dimethiconol), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether-modified silicone, average Examples thereof include highly polymerized silicones having a polymerization degree of 650 to 10,000, amino-modified silicones, betaine-modified silicones, alkyl-modified silicones, alkoxy-modified silicones, mercapto-modified silicones, carboxy-modified silicones, and fluorine-modified silicones.

Among the above, amino-modified silicones include, for example, aminopropylmethylsiloxane / dimethylsiloxane copolymer (INCI name: aminopropyl dimethicone), aminoethylaminopropylsiloxane / dimethylsiloxane copolymer (INCI name: amodimethicone), And aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer (INCI name: trimethylsilylamodimethicone).

The total content of oil components in the oxidative hair dye composition is not particularly limited, but is preferably 0.1 to 30% by mass. As a minimum, More preferably, it is 0.5 mass% or more, Most preferably, it is 1 mass% or more. As an upper limit, More preferably, it is 20 mass% or less, Most preferably, it is 10 mass% or less.

<Surfactant>
Examples of the surfactant include nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants.
In the following description, POE represents a polyoxyethylene chain, POP represents a polyoxypropylene chain, and the numbers in parentheses following this indicate the number of moles added. The number in parentheses following the alkyl indicates the carbon number of the fatty acid chain.

Nonionic surfactants include, for example, POE alkyl ethers, POE alkyl phenyl ethers, POE / POP alkyl ethers, POE sorbitan fatty acid esters, POE mono fatty acid esters, POE glycerin fatty acid esters, polyglycerin fatty acid esters , Monoglycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, alkylpolyglucosides and the like. Specific examples of POE alkyl ethers include POE lauryl ether, POE cetyl ether, POE stearyl ether, POE behenyl ether, POE lanolin, and POE phytosterol.

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. As a lower limit, More preferably, it is 0.01 mass% or more, Most preferably, it is 0.05 mass% or more. As an upper limit, More preferably, it is 30 mass% or less, Most preferably, it is 20 mass% or less.

Examples of the cationic surfactant include monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzalkonium quaternary ammonium salts, and monoalkyl ether quaternary ammonium salts. Alkyl quaternary ammonium salts such as alkyl amine salts, fatty acid amide amine salts, amine salts such as ester-containing tertiary amine salts, arkobelle type tertiary amine salts, and cyclic quaternary ammoniums such as alkyl pyridinium salts and alkyl isoquinolium salts Examples thereof include salts and benzethonium chloride.

Preferred are alkyl quaternary ammonium salts, more preferred are monoalkyl quaternary ammonium salts and dialkyl quaternary ammonium salts, and particularly preferred are monoalkyl quaternary ammonium salts.

Examples of monoalkyl type quaternary ammonium salts include lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, alkyl (16,18) trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium saccharin, chloride Stearyltrimethylammonium, stearyltrimethylammonium bromide, behenyltrimethylammonium chloride, stearyltrimethylammonium saccharin, alkyl chloride (28) trimethylammonium chloride, diPOE (2) oleylmethylammonium chloride, diPOE stearylmethylammonium chloride, POE (1) POP (25) diethylmethylammonium chloride, POP methyldiethylammonium chloride, Of methacryloyloxyethyl trimethyl ammonium, and the like methylsulfate behenyl trimethyl ammonium. Particularly preferred are stearyltrimethylammonium chloride, alkyl (16,18) trimethylammonium chloride, and cetyltrimethylammonium chloride.

Examples of dialkyl quaternary ammonium salts include dialkyl chloride (12-15) dimethyl ammonium, dialkyl chloride (12-18) dimethyl ammonium, dialkyl chloride (14-18) dimethyl ammonium, dicocoyl dimethyl ammonium chloride, dicetyl chloride. Examples include dimethyl ammonium, distearyl dimethyl ammonium chloride, and isostearyl lauryl dimethyl ammonium chloride.

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. As a lower limit, More preferably, it is 0.01 mass% or more, Most preferably, it is 0.05 mass% or more. As an upper limit, More preferably, it is 5 mass% or less, Most preferably, it is 3 mass% or less.

Examples of the anionic surfactant include alkyl ether sulfate, POE alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt , Alkyl or alkenyl ether carboxylates, α-sulfone fatty acid salts, N-acyl amino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinates. The counter ion of the anionic group of these surfactants may be any of sodium ion, potassium ion, and triethanolamine, for example.

More specifically, sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, POE lauryl ether sulfate, POE lauryl ether sulfate triethanolamine, POE Ammonium lauryl ether sulfate, sodium POE stearyl ether sulfate, sodium stearoylmethyl taurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, sodium lauryl phosphate, POE lauryl ether phosphate and salts thereof, N-lauroyl glutamates (lauroyl) Sodium glutamate, etc.), N-lauroylmethyl-β-alanine salt, N-acy Glycine salts, N- acyl glutamates, higher fatty acid lauric acid, myristic acid and salts of these higher fatty acid are exemplified, it is possible to use more than one or two.

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. As a lower limit, More preferably, it is 0.01 mass% or more, Most preferably, it is 0.05 mass% or more. As an upper limit, More preferably, it is 5 mass% or less, Most preferably, it is 3 mass% or less.

Examples of amphoteric surfactants include amino acid type amphoteric surfactants and betaine type amphoteric surfactants.
Specific examples of the amino acid type amphoteric surfactant include, for example, sodium N-lauroyl-N′-carboxymethyl-N′-hydroxyethylethylenediamine (Naurolauroacetic acid Na), 2-alkyl-N-carboxymethyl-N-hydroxyethyl. Imidazolinium betaine, undecylhydroxyethyl imidazolinium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine sodium, N-coconut oil fatty acid acyl-N '-Carboxyethoxyethyl-N'-carboxyethylethylenediamine disodium, N-coconut oil fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethylethylenediamine disodium, lauryldiaminoe Glycine-type amphoteric surfactants such as sodium luglycine, palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine sodium; sodium laurylaminopropionate, sodium laurylaminodipropionate, triethanolamine laurylaminopropionate, etc. And aminopropionic acid type amphoteric surfactants.
Specific examples of the betaine-type amphoteric surfactant include, for example, coconut oil alkylbetaine, lauryldimethylaminoacetic acid betaine, myristyldimethylaminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, sodium stearyldimethylbetaine, coconut oil fatty acid amidopropyl betaine, palm Aminoacetic acid betaine type amphoteric surfactants such as oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, stearyl dihydroxyethyl betaine; sulfobetaine type amphoteric surfactants such as lauryl hydroxysulfobetaine .

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. As a lower limit, More preferably, it is 0.01 mass% or more, Most preferably, it is 0.05 mass% or more. As an upper limit, More preferably, it is 5 mass% or less, Most preferably, it is 3 mass% or less.

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

<Water-soluble polymer>
Examples of the water-soluble polymer include a cationized polymer compound, an anionized polymer compound, an amphoteric polymer compound, and a nonionic polymer compound. By containing the water-soluble polymer, the effect of improving the hair dyeing property is recognized. In addition, when self-foaming is performed by a redox reaction between an reducing agent made of iodide and an oxidizing agent, a good foam can be formed by containing a water-soluble polymer.

The type of the cationized polymer compound is not limited, but includes an amino group or an ammonium group bonded to the polymer chain, or at least a water-soluble one containing dimethyldiallylammonium halide as a constituent unit, such as a cationized cellulose derivative, Examples include cationic starch, cationized guar gum derivatives, diallyl quaternary ammonium salt polymers, diallyl quaternary ammonium salt / acrylamide copolymers, and quaternized polyvinylpyrrolidone derivatives.

Examples of commercially available cationized cellulose derivatives include Leogard G and GP from Lion Corporation, Polymers JR-125, JR-400, JR-30M, LR-400, and LR-30M from Union Carbide. Examples of other cationized cellulose derivatives include hydroxyethyl cellulose dimethyl diallylammonium chloride, and examples of commercially available products include Cellcoat H-100 and L-200 manufactured by National Starch and Chemical Co., Ltd. Examples of the cationized guar gum derivatives are described in, for example, JP-B-58-35640, JP-B-60-46158, and JP-A-58-53996, Jaguar C-13S, -14S, RHONE-POULENC. It is commercially available as -17, -210, -162, HIARE1000. As the diallyl quaternary ammonium salt polymer, a commercially available product such as Marquat 100 (polydimethylmethylenepiperidinium chloride) manufactured by Calgon Co., Ltd. can be mentioned. Examples of the cationic diallyl quaternary ammonium salt / acrylamide copolymer include commercially available products such as Marquat 2200, 550 manufactured by Calgon. As the quaternized polyvinyl pyrrolidone derivative, those having a molecular weight of 10,000 to 2,000,000 are preferable, and commercially available products include GF Coat 734, 755, and 755N manufactured by ISP Japan.

The type of anionized polymer compound is not limited. For example, acrylic acid / acrylic acid amide / ethyl acrylate copolymer, acrylic acid / acrylic acid amide / ethyl acrylate copolymer potassium salt solution, alkyl acrylate ester / Methacrylic acid alkyl ester / diacetone acrylamide / methacrylic acid copolymer solution, acrylic acid / alkyl methacrylate copolymer solution, acrylic resin alkanolamine solution, carboxyvinyl polymer, hydroxypropyl acrylate, butylaminoethyl methacrylate, octylamide acrylate Copolymer, vinyl acetate / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, vinyl acetate / crotonic acid / vinyl propionate copolymer, methyl vinyl ether / monobutyl maleate Ester copolymer and the like.

The type of amphoteric polymer compound is not limited. For example, N-methacryloylethyl N, N-dimethylammonium α-N-methylcarboxybetaine / butyl methacrylate copolymer (commercial name; Yucaformer AM-75; manufactured by Mitsubishi Chemical Corporation) ), Hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer (commercial name; Amphomer 28-4910; manufactured by National Starch), dimethyldiallylammonium chloride / acrylic acid copolymer (commercial name: marcoat) 280,295; Calgon), dimethyldiallylammonium chloride / acrylamide / acrylic acid terpolymer (commercial name; Marquat Plus 3330, 3331; Calgon), acrylic acid / methyl acrylate / methacrylamide chloride Le trimethylammonium copolymer (trade name; Merquat 2001; manufactured by Calgon Co., Ltd.).

The type of 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 dextrin. Examples of the semi-synthetic nonionic polymer compound include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl dextran, and carboxymethyl chitin. Furthermore, examples of the synthetic nonionic polymer compound include polyethyl acrylate, polyacrylic amide, polyethylene glycol, polypropylene glycol, polyoxyethylene / polyoxypropylene copolymer, and polyvinylpyrrolidone.

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. As a lower limit, More preferably, it is 0.1 mass% or more, Most preferably, it is 1 mass% or more. As an upper limit, More preferably, it is 10 mass% or less, Most preferably, it is 5 mass% or less.

[Usage method of oxidative 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 allowed to stand for 30 minutes or more. Here, “after applying to hair” means “after finishing the step of applying the oxidative hair dye composition to hair”. According to the method of using this oxidative hair dye composition, after 30 minutes have passed, the difference in the finish of the hair dye due to the length of the hair dyeing treatment time becomes small. It can be finished to darkness.

A method of using the oxidative hair dye composition of the present invention for solving the second problem is a method including the following steps 1 to 4.
Step 1 is a step of preparing an oxidation hair dye composition by mixing (A) an oxidizing agent, (B) iodide, and (C) an oxidizing dye.
Step 2 is a step of heating the oxidative hair dye composition by self-heating.
Step 3 is a step of applying the heated oxidative hair dye composition to the hair.
Step 4 is a step in which the oxidative hair dye composition is applied to the hair and then allowed to stand for 10 minutes or more.
In addition, “after applying to hair” in step 4 means “after finishing the step of applying the oxidative hair dye composition to hair”.

The operation of mixing the agent containing each component in step 1 may be performed by any method. For example, a method of adding each agent into a container and shaking and mixing the container, or a stirring bar And a method of mixing with a stirring blade, a method of mixing with an applicator such as a brush, and the like.

In step 3, the operation of applying the oxidative hair dye composition to the hair may be applied by any technique, for example, a method of applying to the hair with an applicator such as a brush or a comb, or wearing gloves. The method etc. which apply | coat to hair by hand are mentioned. From the viewpoint of suppressing the occurrence of uneven application, a method of applying to the hair with a brush is preferable, and from the viewpoint of simplicity of the application operation, a step of applying to the hair with a hand wearing gloves is preferable.

In Step 3, the temperature of the oxidative hair dye composition when applied to hair is preferably 28 to 50 ° C. As a lower limit, More preferably, it is 30 degreeC or more, Most preferably, it is 35 degreeC or more. As an upper limit, More preferably, it is 48 degrees C or less, Especially preferably, it is 45 degrees C or less.

The temperature of the oxidative hair dye composition in step 4 is preferably 28 to 50 ° C. As a lower limit, More preferably, it is 30 degreeC or more, Most preferably, it is 35 degreeC or more. As an upper limit, More preferably, it is 48 degrees C or less, Especially preferably, it is 45 degrees C or less. Furthermore, it is preferable to maintain this temperature for 30 minutes or more.

(First embodiment)
The following first embodiment specifically explains the oxidative hair dye composition of the present invention for solving the first problem. However, the technical scope of the present invention is limited by these embodiments. is not.

[Preparation of Oxidative Hair Dye Composition of First Example]
Two-component oxidative hair dye compositions comprising a first agent having the composition shown in Tables 1 and 2 and a second agent having the composition shown below were prepared.
<Second agent>
Cetanol 1.2% by mass
POE (30) cetyl ether 0.3% by mass
POE (10) cetyl ether 0.3% by mass
Stearyltrimethylammonium chloride 0.25% by mass
(A) Hydrogen peroxide (35%) 15.0% by mass
Hydroxyethane diphosphonic acid (40%) 0.1% by mass
Hydroxyethanediphosphonic acid 4Na (40%) 0.2% by mass
Phenoxyethanol 0.1% by mass
Purified water balance 100% by mass

[Evaluation methods]
<Hair dyeing property (1)>
(Hair dyeing method)
The 1st agent shown in Table 1, 2 and the said 2nd agent were mixed by 1: 1, and the oxidative hair dye composition was prepared. This oxidized hair dye composition was applied to a white hair bundle (bath ratio 1: 1), left for 30 minutes at 30 ° C. (hair dyeing treatment time 40 minutes), and left for 60 minutes at 30 ° C. A bundle (hair dyeing treatment time 60 minutes) was obtained. Each hair bundle treated for a predetermined hair dyeing time was washed with water and then washed with a shampoo to wash away the oxidative hair dye composition. Next, a conditioner was applied to each hair bundle. After rinsing each hair bundle and washing off the conditioner, the moisture of each hair bundle was wiped off with a towel and finally dried with a dryer.

(Evaluation method of hair dyeing property (1))
About the hair | bristle bundle which carried out the hair dyeing process as mentioned above, the color depth of the finished color was determined visually. In the determination method, the density of the finished hair bundle of Example 1-1 was set to “0”, and the density of the finished hair bundle was compared, and a score was assigned according to the following criteria. .
+5: The finish is extremely dark compared to the control.
+4: The finish is slightly darker than +3 compared to the control.
+3: The finish is deeper than the control.
+2: The finish is slightly darker than +1 compared to the control.
+1: The finish is slightly darker than the control.
-1: A little thinner than the control.
-2: The finish is slightly thinner than that of -1.
-3: The finish is light compared to the control.
-4: The finish is slightly thinner than -3 compared to the control.
-5: The finish is very thin compared to the control.
For each example and each comparative example, the difference in the finish density between the hair dyeing time of 40 minutes and the hair dyeing time of 60 minutes (“score of hair dyeing time 60 minutes−score of hair dyeing time 40 minutes” The absolute value of “” is calculated, and when this difference is “0”, “Evaluation ◎”, “1” is “Evaluation ○”, “2” is “Evaluation △”, “3 or more” The case was defined as “Evaluation ×”.
The evaluation results are shown in the lower part of Tables 1 and 2.

 

Table 1 shows that in Examples 1-1 to 1-3, (c1) metaaminophenol was contained in the oxidative hair dye composition in an amount of 0.05% by mass or more, and (B) potassium iodide. There was no difference in the darkness of the finished hair dyeing treatment time of 40 minutes and 60 minutes, and an effect of exhibiting a certain hair dyeing property after a predetermined hair dyeing treatment time was recognized. On the other hand, in Comparative Examples 1-2 and 1-3, since the content of (c1) metaaminophenol was less than 0.05% by mass, the finished color became lighter as the hair coloring treatment time elapsed.
In Comparative Example 1-1, since (B) potassium iodide was not contained, the result was that the dyeing became deeper as the hair dyeing treatment time passed.
As shown in Examples 1-2 and 1-3, as in Example 1-1, even if the content of couplers other than (c1) metaaminophenol and the content of the dye intermediate are reduced, the predetermined dyeing is performed. After the hair treatment time, the effect of showing a certain hair dyeing property was recognized. That is, this effect can be said to be a characteristic effect of (c1) metaaminophenol.

 

Looking at Examples 1-1, 1-4, and 1-5 in Table 2, an excellent effect was observed when the content of (B) iodide in the oxidative hair dye composition was 0.05% by weight or more. It was.
Further, when Examples 1-1, 1-6, and 1-7 in Table 2 are observed, the ratio (c1 / C) of the content of (c1) metaaminophenol to the total content of (C) oxidation dye is 0. Excellent effect was recognized at .05 or higher.

Further, when Examples 1-1, 1-8, and 1-9 in Table 2 were observed, an excellent effect was observed when the content of the alkaline agent was large, and the inclusion of the alkaline agent in the oxidative hair dye composition. A particularly excellent effect was observed when the amount was 0.3 mmol / g or more. In the table, (*) indicates an alkali agent.

(Second embodiment)
The following second embodiment specifically explains the oxidative hair dye composition of the present invention for solving the second problem, but the technical scope of the present invention is limited by these embodiments. is not.

[Preparation of Oxidative Hair Dye Composition of Second Example]
Two-component oxidative hair dye compositions comprising a first agent having the composition shown in Tables 3 to 5 below and a second agent having the composition shown below were prepared.
<Second agent>
Cetanol 1.2% by mass
POE (30) cetyl ether 0.3% by mass
POE (10) cetyl ether 0.3% by mass
Stearyltrimethylammonium chloride 0.25% by mass
(A) Hydrogen peroxide (35%) 15.0% by mass
Hydroxyethane diphosphonic acid (40%) 0.1% by mass
Hydroxyethanediphosphonic acid 4Na (40%) 0.2% by mass
Phenoxyethanol 0.1% by mass
Purified water balance 100% by mass

[Evaluation methods]
<Temperature change>
The first agent shown in Tables 3 to 5 and the second agent were placed in a thermostatic bath at 25 ° C., and the temperature was adjusted to 25 ° C. Next, the temperature-adjusted first agent (10 g) and second agent (10 g) were mixed using a brush to prepare an oxidative hair dye composition (20 g). After mixing, the oxidative hair dye composition was placed in a thermostatic bath at 25 ° C., and the temperature of the oxidative hair dye composition was measured 10 minutes, 20 minutes and 30 minutes after mixing.
And the average value of the temperature in each time was calculated, Furthermore, the difference of this average value and the temperature (25 degreeC) before mixing was calculated | required, and this difference was made into temperature rise.
The temperature change was evaluated based on the following criteria for the temperature and the rising temperature at each time. The evaluation results are listed in the lower part of Tables 3-5.
Evaluation 5: All the temperatures at each time are 28 ° C. or higher, and the rising temperature is 5 ° C. or higher.
Evaluation 4: The temperatures at each time are all 27 ° C. or higher, and the rising temperature is 2.5 ° C. or higher.
Evaluation 3: The temperatures at each time are all 26 ° C. or higher, and the rising temperature is 1 ° C. or higher.
Evaluation 2: Any 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 property (2)>
(Hair dyeing method)
The first agent shown in Tables 3 to 5 and the second agent were mixed at a ratio of 1: 1 to prepare an oxidative hair dye composition. Using this oxidation hair dye composition, a white hair bundle was dyed (bath ratio 1: 1, hair dyeing time 30 minutes). Each hair bundle that was subjected to the hair dyeing treatment was washed with water and then washed with a shampoo to wash off the oxidative hair dye composition. Next, a conditioner was applied to each hair bundle. After rinsing each hair bundle and washing off the conditioner, the moisture of each hair bundle was wiped off with a towel and finally dried with a dryer.

(Evaluation method of hair dyeing property (2))
About the hair | bristle bundle which processed the hair dyeing as mentioned above, the hair dyeing property was evaluated by the following references | standards. The evaluation results are shown in the lower part of Table 5.
Evaluation 3: Very excellent hair dyeing state.
Evaluation 2: It is a good hair dyeing state.
Evaluation 1: The hair dyeing state is poor.

 

Referring to Table 3, in Examples 2-1 to 2-4, since (B) potassium iodide is contained in an amount of 0.05% by mass or more in the oxidative hair dye composition, the high temperature of the oxidative hair dye composition is high. An excellent effect was observed on the conversion. Further, when Example 2-1 was compared with Comparative Example 2-2, Example 2-1 contained 0.2% by mass of (B) potassium iodide in the oxidative hair dye composition. The evaluation of the temperature change was “5”, whereas in Comparative Example 2-2 to which the same content of sodium sulfite was added, the evaluation of the temperature change was “3”. That is, it is recognized that the calorific value of potassium iodide is higher than that of sodium sulfite and has an excellent effect of increasing the temperature. In Example 2-1, the temperature increased after 10 minutes, whereas in Comparative Example 2-2, the temperature decreased after 10 minutes. That is, the effect that potassium iodide maintains a high temperature for a long time is also recognized.
Further, the oxidative hair dye composition of Example 2-1 containing potassium iodide was superior in hair dyeability to the oxidative hair dye composition of Comparative Example 2-2 containing sodium sulfite.
Further, comparing Example 2-2 and Comparative Example 2-2, Comparative Example 2-2 contains 0.2% by mass of sodium sulfite in the oxidative hair dye composition, In Example 2-2, although the oxidation hair dye composition contained only 0.05% by mass of (B) potassium iodide, the evaluation of temperature change was “3” in all cases. . That is, it can be said that the content of the reducing agent can be reduced by using potassium iodide.

 

In Example 2-5 of Table 4, an oxidative hair dye composition having an increased content of (C) oxidative dye excluding p-aminophenol was prepared with respect to the formulation of Example 2-1. As a result, in Example 2-5, the evaluation of the temperature change was “3”. That is, it was found that (B) the effect of increasing the temperature of potassium iodide was enhanced when the content of the oxidation dye was decreased.
On the other hand, in Example 2-6, only (c2) p-aminophenol of (C) oxidation dye was added to the formulation of Example 2-4 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, it was confirmed that (c2) the addition of p-aminophenol promotes the effect of increasing the temperature of (B) potassium iodide.
In Example 2-7, the pH of the oxidative hair dye composition was adjusted to 8.6 by adding lactic acid to the formulation of Example 2-6. As a result, in Example 2-7, the temperature after 10 minutes was higher than that in Example 2-6, but then decreased, and after 20 minutes, the temperature became lower than that in Example 2-6. That is, the effect | action which accelerates | stimulates the effect of maintaining the high temperature of (B) potassium iodide by adjusting pH of an oxidative hair dye composition to 9 or more was recognized.

 

In Example 2-8 of Table 5, (D) an oxidative hair dye composition in which higher alcohol was reduced was prepared with respect to the formulation of Example 2-1. As a result, in Example 2-8, the evaluation of the temperature change was “4”. Further, when the hair dyeing property was evaluated, the evaluation of Example 2-1 was “3”, while that of Example 2-8 was “2”. That is, it can be said that addition of a higher alcohol promotes the effect of increasing the temperature of (B) potassium iodide and enhances the hair dyeability.
In Example 2-9, an oxidative hair dye composition was prepared by removing the water-soluble polymer from the formulation of Example 2-1. 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 the hair dyeing property was “2”. That is, it can be said that the hair dyeability is increased by the addition of the water-soluble polymer.

The oxidative hair dye composition of the present invention can be used as a hair dye for dyeing human hair such as human hair, eyelashes, eyebrows, shank. In addition, it may be used to dye animal hair such as pets.
The oxidative hair dye composition of the present invention can be used as a hair dye for coloring in a beauty salon, a barber shop or the like, and a hair dye 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 a beauty salon or a barber shop.

Claims (10)

1. In a multi-component oxidative hair dye composition containing (A) an oxidant, (B) an iodide, and (C) an oxidative dye,
   The (C) oxidation dye contains (c1) metaaminophenol,
   Content of said (c1) metaaminophenol is 0.05 mass% or more, The oxidative hair dye composition characterized by the above-mentioned.
2. The oxidation according to claim 1, wherein a ratio (c1 / C) of the content of the (c1) metaaminophenol to the total content of the (C) oxidation dye is 0.01 to 1. Hair dye composition.
3. The oxidative hair dye composition according to claim 1 or 2, further comprising an alkali agent, wherein the content of the alkali agent is 0.05 to 2 mmol / g.
4. A method of using the oxidative hair dye composition according to claim 1, wherein the oxidative hair dye composition is left on for 30 minutes or more after the oxidative hair dye composition is applied to the hair. how to use.
5. In a multi-component oxidative hair dye composition containing (A) an oxidant, (B) an iodide, and (C) an oxidative dye,
   The oxidation hair dye composition characterized by content of the said (B) iodide being 0.05 mass% or more.
6. The oxidative hair dye composition according to claim 5, further comprising (D) a higher alcohol.
7. The oxidative hair dye composition according to claim 5 or 6, further comprising a water-soluble polymer.
8. The oxidative hair dye composition according to claim 5, wherein the (C) oxidative dye contains (c2) p-aminophenol.
9. The oxidative hair dye composition according to claim 5, 6 or 8, wherein the pH of the oxidative hair dye composition is 8-12.
10. The method for using an oxidative hair dye composition according to claim 5, comprising the following steps.
    Step 1: A step of preparing an oxidative hair dye composition by mixing the (A) oxidant, the (B) iodide, and the (C) oxidative dye,
    Step 2: a step of heating the oxidative hair dye composition by self-heating,
    Step 3: A step of applying the heated oxidative hair dye composition to the hair,
    Process 4: The process of leaving for 10 minutes or more after apply | coating the said oxidation hair dye composition to hair.