CN115990116A

CN115990116A - Oxidative hair dye composition

Info

Publication number: CN115990116A
Application number: CN202211436287.3A
Authority: CN
Inventors: 远藤知彦; 都惠未; 饭尾荣里
Original assignee: Hoyu Co Ltd
Current assignee: Hoyu Co Ltd
Priority date: 2016-04-28
Filing date: 2017-04-12
Publication date: 2023-04-21
Also published as: CN109195573A; WO2017187983A1; CN109195573B

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

The present application is a divisional application of chinese patent application No. 201780033260.0, entitled "oxidative hair dye composition", filed on date 12 of application, 2017, 04, which is based on international application PCT/JP2017/014954, and claims priority from japanese patent applications 2016-091956, 2016-091958 filed on date 28 of 2016, 04, which are incorporated herein by reference in their entirety.

Technical Field

The present invention relates to an oxidative hair dye composition for dyeing hair and the like. In particular, the present invention relates to a multi-dose oxidative hair dye composition containing iodide.

More specifically, the present invention relates to an oxidative hair dye composition which maintains a certain dyeing property after a predetermined dyeing treatment time and can suppress the difference in dyeing color due to the length of the dyeing treatment time to a small extent.

In another aspect, the present invention relates to an oxidation hair dye composition heated by self-heating when a plurality of agents of a multi-agent oxidation hair dye composition are mixed.

Background

The oxidative hair dye composition is used for dyeing hair by oxidizing an oxidative dye comprising a dye intermediate and a coupler to the hair to develop the hair. A general oxidation hair dye composition is composed of a 1 st agent containing an oxidation dye and a 2 nd agent containing an oxidizing agent, and these agents are mixed and used before application to hair.

In order to promote oxidation of an oxidation dye, a method of adding an iodide such as potassium iodide is known. According to this method, hair can be dyed rapidly compared with an oxidative hair dye composition to which no iodide is added.

For example, patent document 1 discloses a dyeing method of keratin fibers, in which a composition containing iodide and 5, 6-dihydroxyindole is applied to keratin fibers, and then a composition containing hydrogen peroxide is applied at pH2 to 5. Further, patent document 2 discloses a method for dyeing hair, 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 dyeing methods, a lot of time and labor are required for dyeing treatment in order to apply 2 kinds of compositions to the hair, respectively.

In view of this, a method of preparing an oxidation hair dye composition by mixing an iodide, an oxidizing agent, and an oxidation dye before application to hair and applying the oxidation hair dye composition to hair is disclosed (patent documents 3 and 4). According to this method, in addition to the effect of treating the application to hair in a single step, the effect of making it possible to develop a strong color with a low concentration of an oxidation dye was confirmed.

In addition, as a technique for improving the dyeing power of the oxidation hair dye composition, a method is known in which the oxidation hair dye composition is heated by self-heating the 1 st agent and the 2 nd agent when they are mixed. For example, patent document 5 discloses a hair dye composition characterized in that heat is generated at the time of mixing and use in a multi-dose hair dye, and as a principle of heat generation, use of oxidation-reduction reaction, dissolution reaction, neutralization reaction, and the like is disclosed. 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 literature

Patent document 1: japanese patent laid-open No. 62-238877

Patent document 2: japanese patent No. 2595076

Patent document 3: japanese patent laid-open No. 5-194162

Patent document 4: japanese patent application laid-open No. 2004-595992

Patent document 5: japanese patent laid-open No. 2000-86271

Disclosure of Invention

Problems to be solved by the invention

(subject 1)

In a typical oxidative hair dye composition containing no iodide, the degree of coloring of hair changes according to the length of a time period after application to hair (hereinafter referred to as "hair dyeing treatment time"), and the longer the hair dyeing treatment time, the darker the hair color. Accordingly, the hair dyeing treatment time is adjusted in order to make a desired hair shade. However, when the coloring depth greatly changes according to the time of the hair dyeing treatment, there is a problem that the coloring 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 colored in a short hair dyeing treatment time, but if left to stand further, a phenomenon of lightening in color is observed. Therefore, in the oxidative hair dye composition containing iodide, it is necessary to strictly adhere to the hair dyeing treatment time set by the designer.

The 1 st object of the present invention is to provide an oxidation hair dye composition comprising a plurality of doses of iodide, which can suppress the difference in coloring of hair dye caused by the length of the hair dye treatment time to a small extent and can be colored to a predetermined color without strictly adhering to the hair dye treatment time.

(subject 2)

In the oxidation hair dye composition in which the hair dyeing power is improved by self-heating and warming, sodium sulfite has been conventionally used as a reducing agent, but since the amount of generated heat is small, a large amount of reducing agent needs to be added. If the reducing agent is added in a large amount, the formulation of other raw materials is restricted in consideration of stability and the like, or the amount of the oxidizing agent requiring the 2 nd agent is also increased.

Accordingly, the object of the present invention, object 2, is to search for a reducing agent having a large amount of heat generation in a multi-dose oxidation hair dye composition that generates self-heat when a plurality of agents are mixed, and to effectively increase the temperature of the oxidation hair dye composition with a small amount of reducing agent.

Means for solving the problems

(technical means for solving the 1 st problem)

As a result of intensive studies with respect to the above-mentioned problem 1, the inventors have found that the change in the hair shade due to the length of the dyeing treatment time is reduced by containing a predetermined amount or more of m-aminophenol in an oxidative hair dye composition containing iodide, and have completed the present invention.

Namely, the present invention is the following oxidation hair dye composition and a method of using the same.

The oxidative hair dye composition of the present invention for solving the above-mentioned problem 1 is an oxidative hair dye composition comprising (A) an oxidizing agent, (B) an iodide, and (C) an oxidative dye, wherein the (C) oxidative dye comprises (C1) m-aminophenol, and the content of (C1) m-aminophenol is 0.05% by mass or more.

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

In addition, by containing m-aminophenol, the phenomenon of lightening of hair after a predetermined dyeing treatment time in the oxidative hair dye composition containing iodide is suppressed, and a certain dyeing property can be maintained even after the predetermined dyeing treatment time.

In addition, according to one embodiment of the oxidative hair dye composition of the present invention for solving the above-mentioned problem 1, the ratio (C1/C) of the content of (C1) m-aminophenol to the total content of (C) oxidative dye is 0.01 to 1.

According to this feature, it is possible to further suppress the change in the hair dyeing property caused by the length of the hair dyeing treatment time.

In addition, according to one embodiment of the present invention for solving the above-mentioned problem 1, there is provided an oxidation hair dye composition further comprising an alkaline agent, wherein the content of the alkaline agent is 0.05 to 2mmol/g.

The method for using the oxidative hair dye composition of the present invention for solving the above-mentioned problem 1 is characterized by comprising applying the oxidative hair dye composition of the present invention to hair and leaving the hair for 30 minutes or longer.

According to the method for using an oxidative hair dye of the present invention for solving the above-mentioned problem 1, since a certain dyeing property can be maintained after 30 minutes or more, a difference in dyeing color due to the length of dyeing treatment time can be suppressed.

(technical means for solving the 2 nd problem)

The inventors have made intensive studies with respect to the above-mentioned problem 2, and as a result, have found that not only rapid dyeing of hair can be achieved but also further increase in temperature of an oxidative hair dye composition can be achieved by using iodide as a reducing agent, thereby completing the present invention.

The oxidative hair dye composition of the present invention for solving the problem of item 2 is a multi-dose oxidative hair dye composition comprising (A) an oxidizing agent, (B) an iodide, and (C) an oxidative dye, wherein the content of (B) an iodide is 0.05% by mass or more.

Since the amount of heat generated by the use of iodide as the reducing agent is larger than that of the conventional sodium sulfite, the oxidation hair dye composition of the present invention for solving the problem of the above-described item 2 can be more effectively heated than the conventional oxidation hair dye composition.

In addition, the use of iodide also has an effect that the temperature of the oxidation hair dye composition after the temperature has been raised can be maintained for a long period of time. According to this effect, the high temperature is maintained during the application and dyeing treatment on the hair, and thus the dyeing power of the oxidative hair dye composition is improved.

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned problem 2, there is provided a feature of containing (D) a higher alcohol.

According to this feature, further increase in temperature and improvement in dyeing property of the oxidative hair dye composition are observed.

In addition, according to one embodiment of the oxidative hair dye composition of the present invention for solving the above-mentioned problem 2, there is provided a feature that it further contains a water-soluble polymer.

According to this feature, further improvement in the dyeing property of the oxidative hair dye composition is observed.

In addition, according to one embodiment of the oxidative hair dye composition of the present invention for solving the above-mentioned problem 2, there is provided a feature that (C) the oxidative dye contains (C2) p-aminophenol.

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

In addition, according to one embodiment of the oxidation hair dye composition of the present invention for solving the above-mentioned problem 2, the oxidation hair dye composition has a pH of 8 to 12.

The method for using the oxidative hair dye composition of the present invention for solving the above object 2 is characterized by comprising the following steps.

Step 1: mixing (A) an oxidizing agent, (B) an iodide, and (C) an 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 hair;

Step 4: after the oxidation hairdye composition is applied to hair, the hair is left for more than 10 minutes.

According to the method for using the oxidative hair dye composition of the present invention for solving the above object 2, since the reducing agent composed of iodide is used, the oxidative hair dye composition having a higher temperature can be produced. In addition, the oxidation hair dye composition maintains a high temperature even after being left for more than 10 minutes, so that a hair dyeing treatment method with excellent hair dyeing property can be provided.

Effects of the invention

According to the oxidative hair dye composition of the present invention for solving the above-mentioned problem 1, since the difference in coloring of hair dye caused by the length of the hair dye treatment time is reduced, the hair dye composition can be colored in a predetermined color even if the hair dye treatment time is not strictly adhered to.

According to the oxidation hair dye composition of the present invention for solving the above object 2, since a large amount of heat is generated by the redox reaction between the reducing agent composed of iodide and the oxidizing agent, the oxidation hair dye composition can be effectively warmed up with a small amount of the reducing agent.

Thus, by adding a large amount of the reducing agent, adverse effects caused by 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 2 nd agent, can be reduced.

Detailed Description

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 oxidizing agent, (B) an iodide, and (C) an oxidative dye.

The oxidative hair dye composition is obtained by separating and circulating (A) an oxidizing agent and (C) an oxidative dye into different agents, and allowing the (C) oxidative dye to develop color on hair. In general, the composition represented by the formula 2 comprising the 1 st agent containing the (C) oxidation dye and the 2 nd agent containing the (a) oxidizing agent may be a multi-agent formula comprising 3 or more agents.

The (B) iodide in the present invention may be contained in a different agent from the 2 nd agent containing the oxidizing agent. For example, the agent 1 containing the (C) oxidation dye may be contained, or only the (B) iodide may be distinguished from the other agents. From the viewpoint of simplifying the mixing operation, it is preferable to form 2 doses by adding the compound 1.

The oxidizing agent (A), the iodide (B) and the oxidation dye (C) are mixed at the time of use to prepare the oxidation hair dye composition. The mixing operation may be either before or after application to the hair. For example, the 1 st and 2 nd agents may be mixed just before application to the hair, or the 1 st and 2 nd agents may be taken out onto a comb or the like, and mixed with the hair using the comb or the like. Since iodide acts as a reducing agent, heat is generated by the oxidation-reduction reaction when mixed with an oxidizing agent, and the oxidative hair dye composition is heated. Therefore, if the oxidizing hair dye composition is mixed before application to hair, the oxidizing hair dye composition is heated before application, and discomfort due to cold feel when attached to the scalp can be suppressed.

The temperature of the oxidation hair dye composition is not particularly limited, but is preferably 28 to 50 ℃, more preferably 30 to 48 ℃, particularly preferably 35 to 45 ℃ as the maximum reaching temperature. The temperature of the oxidation hair dye composition can be set within a predetermined range by adjusting the contents of the oxidizing agent and the reducing agent composed of iodide. When applied to hair, the oxidative hair dye composition is adjusted to a temperature of 35-45 ℃ to suppress discomfort caused by cold feeling when attached to the scalp.

In addition, if the temperature of the oxidative hair dye composition after being heated is maintained for a long period of time, the average value of the respective temperatures after 20 minutes from the start of the mixing operation is preferably 28 to 45 ℃, more preferably 30 to 42 ℃. When the temperature is set within this range, the temperature of the oxidation hair dye composition during the hair dyeing treatment is kept high, and therefore the effect of excellent hair dyeing property is exhibited.

Particularly preferred is an oxidation hair dye composition which is applied to hair at 35 to 45 ℃ and which lasts 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, paste, gel, and the like. The oxidation hair dye composition obtained by mixing the respective agents may be any type having coating properties such as liquid, paste, gel, etc., and may be contained in a part of the agents in the form of powder or solid. Alternatively, all the agents may be dissolved in water in the form of powder or solid for use. If a paste-like formulation is formed, self-foaming occurs by the redox reaction of the reducing agent composed of iodide, and thus a self-foaming oxidative hair dye composition can be obtained. The effect of excellent application to hair is exhibited by foaming by spontaneous foaming.

In addition, bubbles or mist can be formed during use. In the case of forming bubbles, an aerosol model container, a non-aerosol model container, a shaking container, or the like may be used. In the case of forming a mist, a nebulizer may be used. When the oxidative hair dye composition of the present invention is formulated into a foam formulation, excellent effects such as foaming property and foaming are exhibited.

The pH of the oxidation hair dye composition is not particularly limited, but is preferably 8 to 12, more preferably 9 or more as a lower limit, and more preferably 11 or less as an upper limit. By setting the temperature in this range, the effect of maintaining the temperature of the oxidation hair dye composition after the temperature has been raised for a long period of time can be promoted.

Next, the components used in the oxidative hair dye composition of the present invention will be described in detail. The content of each component is represented by the content of each agent in the oxidative hair dye composition after mixing, unless otherwise specified.

Oxidant (A)

The oxidizing agent may be any component contained in the 2 nd agent as long as it has oxidizing power. The oxidizing agent has an effect of oxidizing the oxidation dye to develop color, or an effect of decomposing melanin in the hair. The material also has a function of generating heat by reacting with a reducing agent composed of (B) iodide. Specifically, for example, there can be listed: hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, potassium persulfate, persulphate and other persulphates such as sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, the hydrogen peroxide adduct of sulfate, the hydrogen peroxide adduct of phosphate, the hydrogen peroxide adduct of pyrophosphate, peracetic acid and its salts, performic acid and its salts, permanganates, bromates and the like. Among these, hydrogen peroxide is preferable. In addition, persulfates such as ammonium persulfate, potassium persulfate, and sodium persulfate may be contained as an oxidation assistant.

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

Iodide (B)

The iodide is a compound containing iodine, and examples thereof include: 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 extracts containing iodides such as Bulbus Allii extract. Alkali metal salts of iodides are preferred, potassium iodide or sodium iodide are more preferred, and potassium iodide is particularly preferred.

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

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

In addition, iodide reacts with an oxidizing agent to generate heat. The oxidation-reduction reaction using iodide generates a large amount of heat, and therefore, the effect of effectively increasing the temperature of the oxidation hair dye composition in a small amount is exhibited. In addition, the temperature of the oxidation hair dye composition after the temperature is raised can be maintained for a long period of time.

The content of iodide in the oxidation hair dye composition is not particularly limited, but is preferably 0.05 mass% or more from the viewpoint of increasing the temperature of the oxidation hair dye composition. When the amount is less than 0.05 mass%, the amount of heat generated is small, and the effect of increasing the temperature of the oxidation hair dye composition cannot be exerted. More preferably 0.1 mass% or more, still more preferably 0.15 mass% or more, and particularly preferably 0.3 mass% or more. On the other hand, the upper limit is preferably 5 mass% or less, more preferably 3 mass% or less, and particularly preferably 1 mass% or less.

The content of iodide in the oxidation hair dye composition is preferably 0.2 mass% or more, more preferably 0.5 mass% or more, from the viewpoint of imparting self-foaming properties to the oxidation hair dye composition. By setting the content to 0.2 mass% or more, a satisfactory oxidative hair dye composition in the form of a comfortable form can be obtained.

(C) oxidation dye ]

The oxidation dye is a dye developed by oxidative polymerization with (a) an oxidizing agent. The oxidation dye has a dye intermediate, which develops color by oxidation itself, and a coupling agent, which obtains various hues by combination with the dye intermediate.

Dye intermediates are dye precursors of mainly ortho-or para-phenylenediamines or aminophenols, which are generally themselves colourless or weakly coloured compounds.

Specifically, it can be exemplified that: (c2) Para-aminophenol, ortho-aminophenol, para-methylaminophenol, para-phenylenediamine, toluene-2, 5-diamine (para-toluylenediamine), N-phenyl-para-phenylenediamine, 4 '-diaminodiphenylamine, 2-hydroxyethyl-para-phenylenediamine, ortho-chloro-para-phenylenediamine, 4-amino-m-cresol, 2-amino-4-hydroxyethyl-amino anisole, 2, 4-diaminophenol, salts thereof, 2' - [ (4-aminophenyl) imino ] diethanol, and the like.

The kind of the dye intermediate may be 1 or 2 or more kinds depending on the desired color tone of the hair. The content thereof is not particularly limited, and for example, the total content of the dye intermediate in the oxidation hair dye composition is 0.01 to 5% by mass. The lower limit is more preferably 0.05 mass% or more, and particularly preferably 0.1 mass% or more. The upper limit is more preferably 3% by mass or less, and particularly preferably 1% by mass or less.

As the dye intermediate, (c 2) p-aminophenol is preferably contained. By containing (c 2) p-aminophenol, the oxidation hair dye composition can be further heated by the effect of increasing the temperature of the oxidation hair dye composition. The content of the para-aminophenol is not particularly limited, and is, for example, 0.001 to 2% by mass in the oxidation 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 mass% or less, and particularly preferably 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 may be excessively increased.

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 to 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, and particularly preferably 0.05 or less. If C2/C is small, the effect of increasing the temperature of p-aminophenol is not exhibited, and if C2/C is large, the temperature of the oxidative hair dye composition may be excessively increased.

Examples of the coupling agent include mainly meta-diamines, aminophenols, and diphenols, and specifically: (c1) M-aminophenol, resorcinol, catechol, pyrogallol, phloroglucinol, gallic acid, hydroquinone, 5-amino-o-cresol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, 2, 4-diaminophenoxyethanol, toluene-3, 4-diamine, alpha-naphthol, 2, 6-diaminopyridine, diphenylamine, 3' -iminodiphenyl, 1, 5-dihydroxynaphthalene, tannic acid, salts thereof, 1-hydroxyethyl-4, 5-diaminopyrazole sulfate, and the like.

The type of the coupling agent may be 1 or 2 or more kinds depending on the desired color tone of the hair. The content thereof is not particularly limited, and for example, the total content of the coupling agent in the oxidative hair dye composition is 0.01 to 5% by mass. The lower limit is more preferably 0.05 mass% or more, still more preferably 0.08 mass% or more, and particularly preferably 0.1 mass% or more. The upper limit is more preferably 3% by mass or less, and particularly preferably 1% by mass or less.

The coupling agent is preferably 0.05 mass% or more of (c 1) m-aminophenol in the oxidation hair dye composition. The present inventors have found that, in an oxidative hair dye composition containing an iodide, when screening various oxidative dyes in order to solve the decrease in dyeing properties caused by the increase in dyeing treatment time, it was found that the dyeing properties were not decreased even if the dyeing treatment time was prolonged when (c 1) m-aminophenol was contained at 0.05 mass% or more. Further, it was confirmed that the oxidation hair dye composition of the present invention containing 0.05 mass% or more of m-aminophenol (c 1) has a so-called automatic stopping effect of maintaining a certain dyeing property after a predetermined dyeing time, unlike the conventional oxidation hair dye composition containing no iodide in which dyeing is deepened by extending dyeing time. If this effect is used, the difference in coloring of the hair is small even if the hair dyeing treatment time is slightly prolonged, and therefore, the hair can be colored in a predetermined color even if the hair dyeing treatment time is not strictly adhered to.

The content of the m-aminophenol (c 1) in the oxidation 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. On the other hand, the upper limit is preferably 5 mass% or less, more preferably 3 mass% or less, and particularly preferably 1 mass% or less.

The content of (C1) m-aminophenol is not particularly limited with respect to the total content (C1/C) of (C) oxidation dye, but is preferably 0.005 to 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, 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 mass%. The lower limit is more preferably 0.02 mass% or more, and particularly preferably 0.2 mass% or more. The upper limit is more preferably 8 mass% or less, and particularly preferably 6 mass% or less. When the total content of the oxidation dye (excluding p-aminophenol) is large, the effect of suppressing the high-temperature effect of the reducing agent composed of iodide is exhibited. This effect can be utilized when the oxidation hairdye becomes too high in temperature, for example.

< other ingredients >

The oxidation hair dye composition of the present invention may contain the following components, if necessary, in addition to the above components (a) to (C).

Examples of the other components include: an alkaline agent, a direct dye, an oily component, a surfactant, a water-soluble polymer, an antioxidant such as ascorbic acid or sodium sulfite, a preservative such as phenoxyethanol or sodium benzoate, an organic solvent such as ethanol, a saccharide such as sorbitol or maltose, a polyhydric alcohol such as polyethylene glycol or dipropylene glycol, a chelating agent such as trisodium ethylenediamine hydroxyethyl triacetate dihydrate or tetrasodium hydroxyethylphosphonate, an inorganic salt such as sodium chloride or sodium carbonate, ammonium sulfate, ammonium nitrate, ammonium acetate, a pH adjuster such as citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, glucuronic acid or ammonium bicarbonate, a hair-generating component, a plant extract, a crude drug extract, an amino acid-peptide, urea, vitamins, a perfume, an ultraviolet absorber, or the like.

< alkaline Agents >

The alkaline agent has effects of expanding hair and promoting penetration of dye or oxidant. As the alkaline agent, for example, there can be exemplified: ammonia, alkanolamines, silicates, carbonates, bicarbonates, orthosilicates, phosphates, basic amino acids, hydroxides, and the like. Specifically, as the alkanolamine, there is illustrated: monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, aminomethylpropanol, isopropylamine, and the like are exemplified as silicate: sodium silicate, potassium silicate, and the like are exemplified as carbonates: sodium carbonate, ammonium carbonate, magnesium carbonate, guanidine carbonate, and the like are exemplified as bicarbonate: sodium bicarbonate, ammonium bicarbonate, and the like, as orthosilicates, are exemplified: sodium orthosilicate, potassium orthosilicate, and the like, and as phosphates, examples are: primary ammonium phosphate, secondary ammonium phosphate, disodium hydrogen phosphate, trisodium phosphate, and the like are exemplified as basic amino acids: arginine, lysine, salts thereof, and the like, and as hydroxides, exemplified are: calcium hydroxide, magnesium hydroxide, and the like. Among these, ammonia and alkanolamine are preferable. The alkaline agent is usually contained in the 1 st agent.

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

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

< direct dye >

Direct dyes are colored compounds that bind to or saturate 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 singly or in combination.

As the acid dye, there can be exemplified: 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, orange No. 205, orange No. 207, orange No. 402, green No. 3, green No. 204, green No. 401, violet No. 401, blue No. 1, blue No. 2, blue No. 202, brown No. 201, black No. 401, and the like.

As the above basic dye, there can be exemplified: 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, and the like.

As the above natural dye, there can be exemplified: gardenia pigment, curcumin, annatto pigment, sodium copper chlorophyllin, capsaicine, lac pigment, henna, and the like.

As the nitro dye, there can be exemplified: 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picric acid, salts thereof, and the like.

As the above HC dye, there can be exemplified: 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.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, and the like.

As the above disperse dye, there can be exemplified: 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, and the like.

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

< oily component >

Examples of the oily component include: (D) Higher alcohols, oils, waxes, hydrocarbons, higher fatty acids, esters, silicone oils, fluorooils, and the like. From these oily components, 1 or 2 or more kinds may be selected and used. By containing the oily component, hair dyeing property can be improved, or hair feel (finger passing) can be improved.

(D) higher alcohols ]

Examples of the higher alcohol include: cetyl alcohol (cetyl alcohol), stearyl alcohol, mixtures of stearyl alcohol and cetyl alcohol, oleyl alcohol, linoleate, linolenyl alcohol, eicosanyl alcohol, behenyl alcohol, dodecanyl alcohol, tetradecyl alcohol, 2-hexyldecyl alcohol, isostearyl alcohol, 2-octyldodecanyl alcohol, decyltetradecyl alcohol, phytosterols, phytostanols, cholesterol, cholestanol, lanosterol, ergosterol, and the like.

By containing a higher alcohol, the oxidation hair dye composition is accelerated to be heated, and the effect of improving the hair dyeing property is observed.

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

The oil is triglyceride, i.e. triester of fatty acid and glycerol. For example, there may be mentioned: olive oil, rose hip oil, camellia oil, shea butter, macadamia nut oil, almond oil, tea seed oil, tea plum oil, safflower oil, sunflower seed oil, soybean oil, cotton seed oil, sesame oil, beef tallow, cocoa butter, corn oil, peanut oil, rapeseed oil, rice bran oil, rice germ oil, wheat germ oil, horse oil, grape seed oil, avocado oil, carrot oil, castor oil, linseed oil, coconut oil, mink oil, yolk oil and the like.

Waxes are esters of higher fatty acids with higher alcohols. For example, there may be mentioned: beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, spermaceti wax, rice bran wax, cane wax, palm wax, montan wax, cotton wax, bayberry wax, white wax, kapok wax, shellac wax, and the like.

Hydrocarbons are compounds composed of carbon and hydrogen. For example, there may be mentioned: liquid paraffin, microcrystalline wax, vaseline, isoparaffin, ceresin, mineral wax, polyethylene, alpha-olefin oligomer, polybutene, synthetic squalene, squalane, hydrogenated squalene, limonene, terpineol, etc.

Examples of the higher fatty acid 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, and the like.

Esters are compounds obtained by dehydration reaction of fatty acids with alcohols. For example, there may be mentioned: diisopropyl adipate, 2-hexyl decyl adipate, isopropyl myristate, tetradecyl myristate, cetyl octane, cetyl isooctanoate, isononyl isononanoate, diisopropyl sebacate, isopropyl palmitate, 2-ethylhexyl palmitate, cetyl ethylhexanoate, butyl stearate, isocetyl isostearate, hexyl laurate, decyl oleate, fatty acids (C10-30) (cholesterol/lanosterol esters, dodecyl lactate, octyl dodecyl lactate, lanolin acetate, dipentaerythritol fatty acid esters, N-alkyl ethylene glycol mono-isostearate, lanolin derivatives, and the like.

Silicone oils are synthetic polymers in which silicon and oxygen linked by organic groups are linked to each other by chemical bonding. For example, there may be mentioned: dimethyl polysiloxane (INCI name: dimethyl silicone oil), dimethyl polysiloxane having hydroxyl end group (INCI name: polydimethyl siloxane alcohol), methyl phenyl polysiloxane, decamethyl cyclopentasiloxane, dodecamethyl cyclohexasiloxane, polyether modified siloxane, high polymer siloxane having 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 siloxane, etc.

Among the above, examples of the amino-modified siloxane include: aminopropyl methyl siloxane-dimethyl siloxane copolymer (INCI name: aminopropyl dimethyl silicone oil), aminoethylaminopropyl siloxane-dimethyl siloxane copolymer (INCI name: amino terminal dimethyl siloxane), aminoethylaminopropyl methyl siloxane-dimethyl siloxane copolymer (INCI name: trimethylsilyl amino terminal dimethyl siloxane), and the like.

The total content of the 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 mass% or more, and particularly preferably 1 mass% or more. The upper limit is more preferably 20 mass% or less, and particularly preferably 10 mass% or less.

< surfactant >

The surfactant may be: 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 number in parentheses after the POP represents the number of moles added thereto. In addition, numerals in brackets after alkyl represent the carbon number of the fatty acid chain.

Examples of the nonionic surfactant include: 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, polyglycerol fatty acid esters, mono glycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, alkyl polyglycosides, and the like. Specific examples of POE alkyl ethers include: POE dodecyl ether, POE cetyl ether, POE stearyl ether, POE behenyl ether, POE lanolin, POE phytosterol, and the like.

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

Examples of the cationic surfactant include: alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzyl quaternary ammonium salts, monoalkyl ether quaternary ammonium salts, alkyl amine salts, fatty amide salts, tertiary amine salts containing esters, amine salts such as America コ (America) tertiary amine salts, cyclic quaternary ammonium salts such as alkylpyridinium salts and alkylisoquinolinium salts, and phenethyl ammonium chloride.

The alkyl quaternary ammonium salt is preferable, the monoalkyl quaternary ammonium salt and the dialkyl quaternary ammonium salt are more preferable, and the monoalkyl quaternary ammonium salt is particularly preferable.

Examples of the monoalkyl type quaternary ammonium salt include: dodecyl trimethyl ammonium chloride, dodecyl trimethyl ammonium bromide, alkyl (16, 18) trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, cetyl trimethyl ammonium saccharin, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide, behenyl trimethyl ammonium chloride, stearyl trimethyl ammonium saccharin, alkyl (28) trimethyl ammonium chloride, di POE (2) oleyl methyl ammonium chloride, di POE octadecyl methyl ammonium chloride, POE (1) POP (25) diethyl methyl ammonium chloride, POP methyl diethyl ammonium chloride, methacryloyloxyethyl trimethyl ammonium chloride, behenyl trimethyl ammonium methylsulfate, and the like. Particularly preferred are octadecyl trimethylammonium chloride, alkyl (16, 18) trimethylammonium chloride, and hexadecyl trimethylammonium chloride.

Examples of the dialkyl quaternary ammonium salt include: dialkyl (12-15) dimethyl ammonium chloride, dialkyl (12-18) dimethyl ammonium chloride, dialkyl (14-18) dimethyl ammonium chloride, dicarbamyl dimethyl ammonium chloride, dicetyl dimethyl ammonium chloride, octacosanyl dimethyl ammonium chloride, isostearyl dodecyl dimethyl ammonium chloride, and the like.

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

Examples of the anionic surfactant include: alkyl ether sulfates, POE alkyl ether sulfates, alkyl sulfates, alkenyl ether sulfates, alkenyl sulfates, alkene sulfonates, alkane sulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, alpha-fatty sulfonates, N-acyl amino acid type surfactants, mono-or di-phosphate type surfactants, and sulfoesters. The counter ion of the anionic group of the surfactant is not particularly limited, and may be any of sodium ion, potassium ion, and triethanolamine.

More specifically, an example shows: sodium dodecyl sulfate, sodium tetradecyl sulfate, potassium dodecyl sulfate, ammonium dodecyl sulfate, triethanolamine dodecyl sulfate, sodium hexadecyl sulfate, sodium octadecyl sulfate, sodium POE dodecyl ether sulfate, triethanolamine POE dodecyl ether sulfate, ammonium POE dodecyl ether sulfate, sodium POE octadecyl ether sulfate, sodium stearoyl methyl taurate, triethanolamine dodecyl benzene sulfonate, sodium tetradecene sulfonate, sodium dodecyl phosphate, sodium POE dodecyl ether phosphate and salts thereof, N-dodecyl glutamate (sodium dodecyl glutamate, etc.), N-dodecyl methyl- β -alanine salt, N-acyl glycinate, N-acyl glutamate, lauric acid, myristic acid, and salts of these higher fatty acids may be used as 1 or 2 or more.

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

The amphoteric surfactant may be: amino acid type amphoteric surfactant and betaine type amphoteric surfactant.

Specific examples of the amino acid type amphoteric surfactant include, for example: glycine amphoteric surfactants such as N-lauroyl-N '-carboxymethyl-N' -hydroxyethyl ethylenediamine sodium (lauroyl amphoacetate Na), 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolium betaine sodium, undecyl hydroxyethyl imidazolium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coconut fatty acid acyl-N '-carboxyethyl-N' -hydroxyethyl ethylenediamine sodium, N-coconut fatty acid acyl-N '-carboxyethoxyethyl-N' -carboxyethylethylenediamine disodium, N-coconut fatty acid acyl-N '-carboxymethoxyethyl-N' -carboxymethylethylenediamine disodium, dodecyl diaminoethylglycine sodium, palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethyl ethylenediamine sodium; aminopropionic acid type amphoteric surfactants such as sodium dodecylaminopropionate, triethanolamine dodecylaminopropionate, and the like.

Specific examples of the betaine type amphoteric surfactant include, for example: aminoacetic acid betaine amphoteric surfactants such as coco oil alkyl betaine, dodecyl dimethyl aminoacetic acid betaine, tetradecyl dimethyl aminoacetic acid betaine, octadecyl dimethyl betaine sodium, coco oil fatty amidopropyl betaine, palmitoyl amidopropyl betaine, lauramidopropyl betaine, ricinamidopropyl betaine, octadecyl dihydroxyethyl betaine, etc.; sulfobetaine type amphoteric surfactants such as dodecyl 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. The lower limit is more preferably 0.01 mass% or more, particularly preferably 0.05 mass% or more. The upper limit is more preferably 5% by mass or less, and particularly preferably 3% by mass or less.

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

< Water-soluble Polymer >

The water-soluble polymer may be: cationic polymer compound, anionic polymer compound, amphoteric polymer compound, and nonionic polymer compound. By containing a water-soluble polymer, an effect of improving hair dyeing property was observed. In addition, when self-foaming is performed by the redox reaction of the reducing agent composed of iodide and the oxidizing agent, if the water-soluble polymer is contained, good bubbles can be formed.

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

Examples of the commercial product of the cationized cellulose derivative include: the "package G" of Lion corporation, the "package GP", and the polymers JR-125, JR-400, JR-30M, LR-400, LR-30M of co-carbide corporation. Examples of other cationized cellulose derivatives include hydroxyethylcellulose dimethyldiallylammonium chloride, and examples of commercial products include "setal コ of NATIONAL STARCH & CHEMICAL company, H-100", "setal コ, L-200", and the like. As the cationized guar gum derivatives, for example, japanese patent publication Nos. 58-35640, 60-46158 and 58-53996 are commercially available as JAGUAR C-13S, JAGUAR C-14S, JAGUAR C-17, JAGUAR C-210, JAGUAR C-162 and HICARE1000 of the company RHONE-POULENC. Examples of commercial products of the diallyl quaternary ammonium salt polymer include "mometals コ of CALGON company, 100" (polydimethyl methylenepyridinium chloride). Examples of commercial products of cationic diallyl quaternary ammonium salt-acrylamide copolymers include "matrix コ matrix 2200" and "matrix コ matrix 550" of CALGON company. The quaternized polyvinylpyrrolidone derivative is preferably a compound having a molecular weight of 1 ten thousand to 200 ten thousand, and examples of commercial products include "patent application コ", patent application コ ", patent application 755", patent application コ, patent application 755N ", and the like of ISP japan.

The type of the anionizable polymer compound is not limited, and examples thereof include: acrylic acid-acrylamide-ethyl acrylate copolymer, acrylic acid-acrylamide-ethyl acrylate copolymer potassium salt liquid, acrylic acid alkyl ester-methacrylic acid alkyl ester-diacetone acrylamide-methacrylic acid copolymer liquid, acrylic acid-methacrylic acid alkyl ester copolymer, acrylic resin alkanolamine liquid, carboxyvinyl polymer, hydroxy propyl acrylate, butylaminoethyl methacrylate, copolymer of octylamide acrylate, vinyl acetate-crotonic acid copolymer, vinyl acetate-crotonic acid-neodecanoic acid vinyl ester copolymer, vinyl acetate-crotonic acid-vinyl propionate copolymer, methyl vinyl ether-maleic acid monobutyl ester copolymer, and the like.

The type of the amphoteric polymer compound is not limited, and examples thereof include: n-methacryloylethyl N, N-dimethylammonium alpha-N-methylcarboxybetaine-butyl methacrylate copolymer (trade name: "Mega Mei Meo AM-75"; mitsubishi chemical company, inc.), hydroxypropyl acrylate-butylaminoethyl methacrylate-octylacrylamide copolymer (trade name: "A Men 28-4910"; NATIONAL STARCH company, inc.; dimethyl diallylammonium chloride-acrylic copolymer (trade name: "Ma コ m Me 280"; mega コ m 295"; CALGON company, inc.), dimethyl diallylammonium chloride-acrylamide-acrylic terpolymer (trade name:" Mega Meo Yus コ "Yus 3330", "Mega コ"; CAON methyl acrylamide-methyl acrylamide copolymer (trade name;) and the like, trade names: CAON methyl acrylamide-LG 35, etc.).

The type of the nonionic polymer compound is not limited, and examples thereof include natural, semisynthetic and synthetic compounds. Examples of the natural nonionic polymer compound include cellulose, guar gum, agar, starch, hydrolyzed starch, and dextran. The semisynthetic nonionic polymer compounds include: methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethyl cellulose, carboxymethyldextran, carboxymethylchitin, and the like. The synthetic nonionic polymer compounds include: polyethyl acrylate, polyacrylamide, polyethylene glycol, polypropylene glycol, polyoxyethylene-polyoxypropylene copolymer, polyvinylpyrrolidone, and the like.

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

[ method of Using oxidative Hair dye composition ]

The method for using the oxidative hair dye composition of the present invention for solving the problem 1 is characterized by applying the oxidative hair dye composition to hair and then leaving the hair for 30 minutes or longer. As used herein, "after application to hair" means "after the completion of the step of applying the oxidative hair dye composition to hair". According to the method of using the oxidative hair dye composition, the difference in coloring of hair dye due to the length of the hair dye treatment time is reduced when 30 minutes pass, so that the same level of coloring can be achieved even if the hair dye treatment time is prolonged.

The method for using the oxidative hair dye composition of the present invention for solving the problem of item 2 is a method comprising the following steps 1 to 4.

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

Step 2: the oxidative hair dye composition is heated by self-heating.

Step 3: the heated oxidative hair dye composition is applied to the hair.

The term "after application to hair" in step 4 means "after the end of the step of applying the oxidative hair dye composition to hair".

In step 1, the mixing of the agents containing the respective components may be performed by any method, and examples thereof include: a method of mixing the respective agents by pouring the agents into a container and shaking the container; a method of mixing by stirring rod, stirring paddle, etc.; and a method of mixing by a coating tool such as brush hair.

In step 3, the application of the oxidative hair dye composition to hair may be carried out by any method, and examples thereof include: a method of applying the hair to the hair by a brushing, comb or the like applicator; a method of applying the glove-wearing hand to hair, etc. The method of applying the brush hair is preferable from the viewpoint of suppressing the occurrence of uneven application, and the step of applying the brush hair with a glove-wearing hand is preferable from the viewpoint of simplicity of the application operation.

In addition, in step 3, the temperature of the oxidative hair dye composition at the time of application to hair is preferably 28 to 50 ℃. The lower limit is more preferably 30℃or higher, particularly preferably 35℃or higher. The upper limit is more preferably 48℃or lower, and particularly preferably 45℃or lower.

The temperature of the oxidation hair dye composition in step 4 is preferably 28 to 50 ℃. The lower limit is more preferably 30℃or higher, particularly preferably 35℃or higher. The upper limit is more preferably 48℃or lower, and particularly preferably 45℃or lower. Further, the temperature is preferably kept for 30 minutes or more.

Examples

(example 1)

The oxidation hair dye composition of the present invention for solving the problem 1 will be specifically described with reference to the following example 1, but the technical scope of the present invention is not limited to these examples.

[ preparation of the oxidative hair dye composition of example 1 ]

A 2-pack type oxidation hair dye composition was prepared which consisted of the 1 st pack having the compositions shown in tables 1 and 2 and the 2 nd pack having the compositions shown below.

< 2 nd dose >

[ evaluation method ]

< dyeing Property (1) >

(Hair dyeing treatment method)

The 1 st agent shown in tables 1 and 2 was mixed with the 2 nd agent at a ratio of 1:1 to prepare an oxidation hair dye composition. The oxidation hair dye composition was applied to a white hair bundle (bath ratio 1:1), a hair bundle left at 30℃for 40 minutes (hair dyeing treatment time 40 minutes), and a hair bundle left at 30℃for 60 minutes (hair dyeing treatment time 60 minutes). After each hair bundle treated for a predetermined hair dyeing treatment time is washed with water, the hair is washed with a shampoo, and the oxidation hair dye composition is rinsed. Next, a conditioner is applied to each hair strand. Washing each hair bundle, washing hair conditioner, wiping water of each hair bundle with towel, and drying with blower.

(evaluation method of dyeing Property (1))

As described above, the color depth of the colored hair strand after the hair dyeing treatment was visually determined. The determination method was that the coloring depth of the hair bundle of example 1-1 was set to "0" and the hair bundle was compared with the coloring depth, and the hair bundle was scored by the following criteria.

+5: the coloring is extremely deep compared with the blank.

+4: the coloring was slightly darker than +3 compared to the blank.

+3: compared with the blank, the coloring is deep.

+2: the coloring was slightly darker than +1 compared to the blank.

+1: the coloring was slightly darker than the blank.

-1: slightly shallower than the blank.

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

-3: the coloring is light compared with the blank.

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

-5: the coloring is extremely light compared with the blank.

In the examples and comparative examples, the difference between the coloring depths of 40 minutes and 60 minutes of the dyeing treatment time ("absolute value of score of 60 minutes of the dyeing treatment time-score of 40 minutes of the dyeing treatment time") was calculated, and the difference was "0" for "good" for evaluation, "1" for "good" for evaluation, "2" for "delta" for evaluation, "3 or more for" x "for evaluation.

The evaluation results are shown in the lower stages of tables 1 and 2.

TABLE 1

As is clear from Table 1, in examples 1-1 to 1-3, since (c 1) 0.05 mass% or more of meta-aminophenol and (B) potassium iodide were contained in the oxidative hair dye composition, there was no difference in coloring depth between the hair dye treatment time of 40 minutes and 60 minutes, and it was observed that the effect of exhibiting a certain hair dyeing property after a prescribed hair dye treatment time had elapsed. On the other hand, in comparative examples 1-2 and 1-3, since the content of m-aminophenol (c 1) was less than 0.05 mass%, the coloring color became lighter with the lapse of the dyeing treatment time.

In comparative example 1-1, since (B) potassium iodide was not contained, a darker dyeing result was obtained with the lapse of the dyeing treatment time.

As shown in examples 1-2 and 1-3, even if the amounts of the coupling agent other than m-aminophenol and the dye intermediate were reduced in (c 1), the effect of exhibiting a certain dyeing property after a predetermined dyeing treatment time was observed in the same manner as in example 1-1. That is, this effect is a characteristic action effect of (c 1) m-aminophenol.

TABLE 2

As is clear from examples 1-1, 1-4 and 1-5 in Table 2, the content of (B) iodide in the oxidative hair dye composition was 0.05% by weight or more, and excellent effects were observed.

As is clear 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 was 0.05 or more, and excellent effects were observed.

It is also evident from examples 1-1, 1-8 and 1-9 of Table 2 that, when the content of the alkaline agent is large, excellent effects are observed, and that the content of the alkaline agent in the oxidative hair dye composition is 0.3mmol/g or more, particularly excellent effects are observed. In the table (% in the specification means an alkaline agent).

(example 2)

The oxidation hair dye composition of the present invention for solving the problem of the present invention of the 2 nd is specifically described by the following example 2, but the technical scope of the present invention is not limited to these examples.

[ preparation of the oxidative hair dye composition of example 2 ]

A2-pack type oxidation hair dye composition comprising the 1 st pack having the composition shown in tables 3 to 5 and the 2 nd pack having the composition shown below was prepared.

< 2 nd dose >

[ evaluation method ]

< temperature Change >

The 1 st agent shown in tables 3 to 5 and the 2 nd agent were placed in a constant temperature bath at 25℃and the temperature was adjusted to 25 ℃.

Next, the 1 st agent (10 g) and the 2 nd agent (10 g) after temperature adjustment were mixed with each other using bristles to prepare an oxidation hair dye composition (20 g). After mixing, the oxidation hair dye composition was placed in a constant temperature bath at 25℃and after mixing for 10 minutes, 20 minutes and 30 minutes, the temperature of the oxidation hair dye composition was measured.

Further, an average value of the temperatures at each time was calculated, and a difference between the average value and the temperature before mixing (25 ℃) was calculated, and the difference was used as the temperature rise.

Regarding the temperature and the rising temperature at each time, the temperature change was evaluated based on the following criteria. The evaluation results are shown in the lower stages of tables 3 to 5.

Evaluation 5: the temperatures at each time are all 28 ℃ or higher, and the rising temperature is 5 ℃ or higher.

Evaluation 4: the temperature at each time is 27 ℃ or higher and the rising temperature is 2.5 ℃ or higher.

Evaluation 3: the temperature at each time is 26 ℃ or higher and the rising temperature is 1 ℃ or higher.

Evaluation 2: any temperature at each time is less than 26 ℃, and the rising temperature is 1 ℃ or more.

Evaluation 1: the temperature of the rising heat is less than 1 ℃.

< dyeing Property (2) >

(Hair dyeing treatment method)

The 1 st agent shown in tables 3 to 5 was mixed with the 2 nd agent at a ratio of 1:1 to prepare an oxidation hair dye composition. Using the oxidative hair dye composition, hair dyeing treatment was performed on a white hair strand (bath ratio 1:1, hair dyeing treatment time 30 minutes). After each hair strand after the hair dyeing treatment is washed with water, the hair is washed with shampoo, and the oxidation hair dye composition is washed away. Next, a conditioner is applied to each hair strand. Washing each hair bundle, washing hair conditioner, wiping water of each hair bundle with towel, and drying with blower.

(evaluation method of dyeing Property (2))

As described above, regarding the hair bundle after the hair dyeing treatment, the hair dyeing property was evaluated by the following criteria. The evaluation results are shown in the lower stage of table 5.

Evaluation 3: very good hair dyeing conditions.

Evaluation 2: good dyeing state.

Evaluation 1: the hair dyeing state is poor.

TABLE 3

TABLE 3 Table 3

As is clear from Table 3, in examples 2-1 to 2-4, since potassium iodide (B) was contained in the oxidation hair dye composition in an amount of 0.05 mass% or more, excellent effects were observed for the high temperature of the oxidation 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 mass% of (B) potassium iodide in the oxidation hair dye composition, whereas in comparative example 2-2, in which sodium sulfite was added in the same amount, the evaluation of the temperature change was "3". That is, potassium iodide was higher in heat generation than sodium sulfite, and it was confirmed that the effect of increasing the temperature was excellent. 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 of maintaining the potassium iodide at a high temperature for a long period of time was also observed.

In addition, the oxidation hair dye composition of example 2-1 containing potassium iodide was superior in dyeing property 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, sodium sulfite was contained in an amount of 0.2 mass% in the oxidation hair dye composition, whereas in example 2-2, although (B) contained only potassium iodide in an amount of 0.05 mass%, the evaluation of temperature change was "3". That is, by using potassium iodide, the content of the reducing agent can be reduced.

TABLE 4

TABLE 4 Table 4

In examples 2 to 5 of Table 4, an oxidation hair dye composition having an increased content of (C) oxidation dye excluding para-aminophenol was prepared relative to the formulation of example 2 to 1. As a result, in examples 2 to 5, the evaluation of the temperature change reached "3". That is, if the content of the oxidation dye (C) is reduced, it is confirmed that the effect of increasing the temperature of potassium iodide (B) is improved.

On the other hand, in examples 2 to 6, the oxidation hairdye composition was prepared by adding only (C2) p-aminophenol to the oxidation dye (C) in comparison with the formulation of examples 2 to 4. As a result, in examples 2 to 6, the temperatures for the respective times were higher than those in examples 2 to 4. That is, if (c 2) p-aminophenol was added, it was confirmed that the effect of promoting the elevation of the temperature of potassium iodide (B) was achieved.

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

TABLE 5

In examples 2 to 8 of Table 5, oxidation hair dye compositions reduced in (D) higher alcohol were prepared relative to the formulation of example 2 to 1. As a result, in examples 2 to 8, the evaluation of the temperature change reached "4". In addition, the evaluation of hair dyeing property showed that the evaluation of example 2-1 was "3", whereas the evaluation of example 2-8 was "2". That is, the addition of the higher alcohol promotes the effect of (B) increasing the temperature of potassium iodide, and it can be said that the dyeing property is improved.

In examples 2 to 9, an oxidative hair dye composition excluding a water-soluble polymer was prepared according to the formulation of example 2 to 1. As a result, in examples 2 to 9, the evaluation of the temperature change was the same as that in example 2 to 1, but the evaluation of the dyeing property was "2". That is, by adding the water-soluble polymer, the hair dyeing property is improved.

Industrial applicability

The oxidative hair dye composition of the present invention can be used as a hair dye for dyeing human hair, beard, eyebrow, leg Mao Dengti hair. In addition, the dye can be used for dyeing the body hair of animals such as pets.

The oxidative hair dye composition of the present invention can be used as a hair dye for coloring in places such as beauty parlors and barbershops, and as a hair dye for autonomous coloring.

The method of using the oxidative hair dye composition of the present invention can be used for hair dyeing treatment and autonomous coloring in places such as beauty parlors and barbershops.

Claims

1. An oxidation hair dye composition comprising a plurality of agents including (A) an oxidizing agent, (B) an iodide and (C) an oxidation dye, characterized in that,

the (C) oxidation dye comprises (C1) m-aminophenol,

the content of the m-aminophenol (c 1) is 0.05% by mass or more.

2. The oxidative hair dye composition according to claim 1, wherein the ratio (C1/C) of the content of (C1) meta-aminophenol to the total content of (C) oxidative dye is 0.01 to 1.

3. The oxidative hair dye composition according to claim 1 or 2, further comprising an alkaline agent in an amount of 0.05 to 2mmol/g.

4. The oxidative hair dye composition according to claim 1, which is an oxidative hair dye composition comprising (a) an oxidizing agent, (B) an iodide, and (C) an oxidative dye, wherein the oxidative hair dye composition comprises a 1 st agent comprising (C) an oxidative dye and a 2 nd agent comprising (a) an oxidizing agent, wherein the 1 st agent and the 2 nd agent are mixed and applied to hair, or wherein the 1 st agent and the 2 nd agent are mixed on hair by one coating operation and applied to hair, and wherein the ratio (C1/C) of the content of the m-aminophenol to the total content of the (C) oxidative dye is 0.01 to 0.3.

5. A method of using the oxidative hair dye composition according to claim 1, wherein the oxidative hair dye composition is applied to hair and allowed to stand for 30 minutes or longer.