JP5506174B2 - Oxidative hair dye - Google Patents

Description

  The present invention relates to an oxidative hair dye. Specifically, the present invention relates to a three-component oxidative hair dye using a third agent containing carbonate.

  As the hair dye, an oxidative hair dye is widely used because the effect is sustained. As the oxidative hair dye, a two-component oxidative hair dye composed of a first agent containing an oxidative dye and an alkali agent and a second agent containing hydrogen peroxide is mainly used.

  In the two-component oxidative hair dye, the alkaline agent in the first agent acts with hydrogen peroxide in the second agent to generate oxygen, thereby decomposing melanin in the hair and decolorizing the hair. The oxidative dye in the first agent is oxidatively polymerized in the hair to dye the hair. In addition to the action of hydrogen peroxide, the alkaline agent in the first agent has an effect of improving the hair dyeing effect by swelling the cuticle on the hair surface and allowing the dye to penetrate into the hair. However, since the keratin protein on the hair surface is easily decomposed by the alkaline agent, the use of a high pH alkaline agent has the problem that the hair is damaged and split hairs and hair breaks occur, and the scalp is irritated. ing.

  In order to solve such a problem, a two-component oxidative hair dye using ammonia and carbonate in combination has been proposed as an alkaline agent of the first agent (see, for example, Patent Documents 1 to 3). . Although these proposals improve the above problems, ammonia is used as an alkaline agent, so the ammonia odor in hair dye cannot be eliminated. There is a problem that it is not excellent.

  On the other hand, as a technique related to the present invention, a three-part oxidative hair dye comprising a first agent containing an oxidative dye, a second agent containing hydrogen peroxide, and a third agent containing percarbonate is used. Has been reported (see Patent Document 4). This percarbonate is an oxidizing agent having a strong oxidizing power generated by electrolytic oxidation of carbonate or reaction of peroxide and carbon dioxide, and is a substance different from carbonate. And in patent document 4, in addition to hydrogen peroxide as an oxidizing agent, percarbonate is also effectively decomposed, melanin in hair is effectively decomposed, and black hair is discolored to the same extent as white hair, and has white hair concealing properties. The purpose of the improvement is a technique different from the present invention.

  In addition, a three-part hair bleaching agent comprising a first agent containing an alkaline agent, a second agent containing hydrogen peroxide, and a third agent containing persulfate and carbonate has been reported ( For example, see Patent Documents 5 to 7). However, the three-part hair bleaching agents disclosed in Patent Documents 5 to 7 use a persulfate having strong oxidizing power in addition to a carbonate that promotes the decomposition of hydrogen peroxide, so that melanin in hair can be obtained. The hair is sufficiently decomposed to effectively decolorize the hair. If a third agent containing such a persulfate having a strong oxidizing power is used as an oxidative hair dye, the oxidative dye may be oxidized before penetrating into the hair, or the weight of the oxidized dye may be increased. There is a problem that the coalescence is decomposed and the hair cannot be dyed sufficiently. Therefore, such a three-part hair bleaching agent cannot be applied to an oxidative hair dye.

Japanese Patent Publication No. 5-53770 JP 2001-206825 A JP 2002-179539 A JP-A-3-258714 JP 2007-15986 A (paragraph number [0056]) Japanese Patent Laying-Open No. 2006-200277 (paragraph number [0071]) Japanese Patent Laying-Open No. 2005-154286 (paragraph number [0042])

  The present invention has been made in view of the above-described prior art, and there is no oxidative hair dye on the scalp during treatment to the hair, and there is no irritating sensation due to alkali, and after the treatment is excellent in dyeability and does not damage the hair. The issue is to provide. It is another object of the present invention to provide an oxidative hair dye that is excellent in dyeability and can dye hair in a bright color even when only carbonate is used as an alkaline agent.

That is, the present invention
[1] A first agent containing an alkali agent and an oxidation dye, a second agent containing hydrogen peroxide, and a third agent containing carbonate , wherein the alkali agent of the first agent is carbonate A three-component hair dye, wherein the content of carbonate in the hair dye is 10 to 20% by weight in terms of sodium carbonate,
[2] The oxidative hair dye according to [1], further comprising a thickener in the third agent,
[3] The oxidative hair dye according to [2], wherein the thickener is a cellulosic polymer,
[4] The oxidative hair dye according to any one of [1] to [3], wherein the third agent is in a powder form,
About.

  According to the present invention, there is no irritating feeling due to alkali on the scalp during the treatment on the hair, and the hair after the treatment is excellent in dyeability, and it is possible to sufficiently suppress damage to the hair. Moreover, even when only carbonate is used as the alkaline agent, the dyeing properties are excellent and the hair can be dyed in a bright color.

  The oxidative hair dye of the present invention is a three-part formula comprising a first agent containing an alkali agent and an oxidative dye, a second agent containing hydrogen peroxide, and a third agent containing carbonate. There is a big feature.

  By having such characteristics, it is possible to increase the concentration of carbonate when using an oxidative hair dye, and even when only carbonate is used as an alkaline agent, it exhibits excellent dyeability. And damage to the hair after the treatment can be sufficiently suppressed. And since it is excellent also in the decoloring power of hair, black hair can be dye | stained to various bright colors.

  First, the 1st agent concerning the oxidation hair dye of this invention is demonstrated. The first agent used in the present invention contains an alkali agent and an oxidation dye.

  The alkali agent is not particularly limited as long as it is usually used for oxidative hair dyes. For example, ammonia; carbonates such as ammonium carbonate, sodium carbonate, potassium carbonate, guanidine carbonate, sodium bicarbonate, potassium bicarbonate, etc. Organic organic amines such as ethanolamine, diethanolamine, triethanolamine, isopropanolamine, 2-amino-2-methyl-1-propanol, and the like can be used, and one or more of these may be used in appropriate combination. it can.

  The blending amount of the alkaline agent in the first agent is not particularly limited as long as the effects of the present invention are exhibited, but from the viewpoint of dyeability, it is preferably 0.1% by weight or more, and more preferably 0.3% by weight or more. Moreover, 5 weight% or less is preferable and 4 weight% or less is more preferable from the viewpoint of preventing skin irritation and hair damage and from the viewpoint of stability of the preparation. From these, it is preferable to make the compounding quantity of an alkali agent into 0.1 to 5 weight%, More preferably, it is good to set it as 0.3 to 4 weight%.

  In addition, when only carbonate is selected as the alkaline agent in the first agent, unpleasant odors such as ammonia and amine during treatment can be removed. And, together with the carbonate of the third agent described later, there is an advantage that the hair can be dyed in a bright color without using another alkaline agent.

  In the present specification, the oxidation dye used in the first agent means a dye used for an oxidation hair dye such as an oxidation dye precursor or a coupler.

  The oxidation dye that can be used in the present invention is not particularly limited. For example, examples of the oxidation dye precursor include phenylenediamines, aminophenols, diaminopyridines, and salts thereof such as hydrochlorides and sulfates. Can be mentioned. Specifically, p-phenylenediamine, toluene-2,5-diamine, toluene-3,4-diamine, 2,5-diaminoanisole, N-phenyl-p-phenylenediamine, N-methyl-p-phenylenediamine N, N-dimethyl-p-phenylenediamine, 6-methoxy-3-methyl-p-phenylenediamine, N, N-diethyl-2-methyl-p-phenylenediamine, N-ethyl-N- (hydroxyethyl) -P-phenylenediamine, N- (2-hydroxypropyl) -p-phenylenediamine, 2-chloro-6-methyl-p-phenylenediamine, 2-chloro-p-phenylenediamine, N, N-bis- (2 -Hydroxyethyl) -p-phenylenediamine, 2,6-dichloro-p-phenylenediamine, 2-chloro-6-butyl Phenylenediamines such as mu-p-phenylenediamine; p-aminophenol, o-aminophenol, 2,4-diaminophenol, 5-aminosalicylic acid, 2-methyl-4-aminophenol, 3-methyl-4-amino Phenol, 2,6-dimethyl-4-aminophenol, 3,5-dimethyl-4-aminophenol, 2,3-dimethyl-4-aminophenol, 2,5-dimethyl-4-aminophenol, 2-chloro- Examples include aminophenols such as 4-aminophenol and 3-chloro-4-aminophenol; diaminopyridines such as 2,5-diaminopyridine, and salts thereof.

  Couplers include resorcin, m-aminophenol, m-phenylenediamine, 2,4-diaminophenoxyethanol, 5-amino-o-cresol, 2-methyl-5-hydroxyethylaminophenol, 2,6-diaminopyridine, catechol And pyrogallol, gallic acid, tannic acid and the like and salts thereof.

  In addition, those listed in "Quasi-drug raw material standards" (issued in June 1991, Yakuji Nippo) can be used as appropriate.

  The above-mentioned oxidation dye precursor and coupler can be used alone or in combination of two or more, and at least an oxidation dye precursor is preferably used.

  The content of the oxidation dye in the first agent is usually about 0.1 to 10% by weight from the viewpoint of safety such as hair dyeing properties and skin irritation.

  The 1st agent concerning this invention can be made to contain ascorbic acid and an ascorbic acid derivative from a viewpoint which prevents the oxidation in the formulation preservation | save of an oxidation dye. Ascorbic acid derivatives that can be used include, for example, sodium ascorbate, potassium ascorbate, calcium ascorbate, ammonium ascorbate, erythorbic acid, sodium erythorbate, magnesium ascorbate phosphate, ascorbyl citrate, ascorbyl acetate, tartaric acid Examples include ascorbyl, ascorbyl palmitate, ascorbyl stearate, and ascorbyl glucoside.

  Next, the second agent of the present invention will be described. The second agent according to the present invention contains hydrogen peroxide as an essential component in order to decolorize the hair by decomposing melanin in the hair and to oxidatively polymerize the oxidative dye in the first agent in the hair. The

  The blending amount of hydrogen peroxide is not particularly limited as long as the effects of the present invention are exhibited. However, from the viewpoint of dyeability, 0.01% by weight or more is preferable, and 0.1% by weight or more is more preferable. Further, from the viewpoint of preventing skin irritation and hair damage, it is preferably 10% by weight or less, more preferably 6% by weight or less. From these, it is preferable that the compounding quantity of an oxidizing agent shall be 0.01-10 weight%, More preferably, it is good to set it as 0.1-6 weight%.

  In addition, the first agent and / or the second agent according to the present invention include, in addition to the above components, lower alcohols such as ethanol and isopropanol; lauryl alcohol, myristyl, as long as the effects of the object of the present invention are not impaired. Higher alcohols such as alcohol, cetyl alcohol, stearyl alcohol; higher fatty acids such as lauric acid, myristic acid, stearic acid, oleic acid; esters such as myristyl myristate, isostearyl myristate, stearyl stearate; avocado oil, olive oil, sa Animal and vegetable oils such as flower oil and hydrogenated oil; polyhydric alcohols such as polyethylene glycol, glycerin, polyglycerin, 1,3-butylene glycol, 1,2-pentanediol, 1,2-octanediol; sorbitan fatty acid ester, glycerin fatty acid S And non-ionic surfactants such as these alkylene oxide adducts, polyglycerin fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene lanolin; higher fatty acid soaps, Anionic surfactants such as alkyl sulfates, alkyl phosphates, polyoxyethylene alkyl ether sulfates, alkyl ether phosphates, alkyl ether carboxylates, acylmethyl taurates, alkyl sulfosuccinic acids and salts thereof; alkyls Glycine salt, carboxymethylglycine salt, N-acylaminoethyl-N-2-hydroxyethylglycine salt and other glycine-type amphoteric surfactants, alkylaminopropionate, alkyliminodipropio Aminopropionic acid-type amphoteric surfactants such as acid salts, aminoacetic acid betaine-type amphoteric surfactants such as alkyldimethylaminoacetic acid betaine, fatty acid amidopropyldimethylaminoacetic acid betaine, and sulfobetaine-type amphoteric surfactants such as alkylhydroxysulfobetaine Amphoteric surfactants such as; alkylamine salts such as lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride; cationic surfactants such as fatty acid amidoamines such as dimethylaminoethylamide myristate and diethylaminopropylamide stearate Agents: Red No. 2, Red No. 102, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Black No. 401, etc. Dyes; pH stabilizer, chelating agent, thickener, anti-inflammatory Agent, ultraviolet Linear absorption, a fragrance | flavor, water, etc. can be suitably contained according to the objective.

  In addition, as a dosage form of the 1st agent and 2nd agent which concern on this invention, it can be used with various dosage forms, such as liquid form, gel form, and cream form. Among these, from the viewpoint of facilitating the mixing with the third agent described later, it is preferable that the first agent is liquid, gel or cream, and the second agent is liquid.

  The third agent of the present invention contains carbonate as an essential component. Examples of the carbonate used include ammonium carbonate, sodium carbonate, potassium carbonate, guanidine carbonate, ammonium hydrogen carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like. Of these, ammonium carbonate, sodium carbonate, and potassium carbonate are preferably used from the viewpoint of further increasing the alkali concentration.

The amount of carbonate used is not particularly limited as long as the effect of the present invention is exerted. From the viewpoint of suppressing hair damage, the amount of carbonate converted to sodium carbonate (Na ₂ CO ₃ ) in the total amount of oxidative hair dye is 10 % By weight is preferable, and 12% by weight or more is more preferable. Moreover, from a viewpoint of suppressing skin irritation, 20 weight% or less is preferable and 18 weight% is more preferable. From these, the total amount of carbonate used is preferably 10 to 20% by weight, more preferably 12 to 18% by weight.

  A 3rd agent can mix | blend a thickener from a viewpoint of making the dispersibility and mixing property with a 1st agent and a 2nd agent favorable. The thickener that can be used is not particularly limited as long as it can be blended into a hair dye, for example, natural polymer thickeners such as xanthan gum, guar gum, carrageenan, locust bean gum; methylcellulose, ethylcellulose, hydroxymethylcellulose, Examples thereof include cellulosic polymers such as hydroxyethyl cellulose, hydroxypropylmethyl cellulose, and carboxymethyl cellulose; carboxyvinyl polymers and the like. Among these, it is preferable to use a cellulosic polymer from the viewpoint of improving the dispersibility / mixability of the carbonate.

  The third agent may be composed only of carbonate, but when used in combination with a thickener, from the viewpoint of improving the dispersibility / mixability of the first agent and the second agent, 1 part by weight of carbonate. On the other hand, it is preferable to mix the thickener at 0.1 to 2 parts by weight.

  In addition, the third agent according to the present invention includes powders such as sodium chloride, chromium oxide, ultramarine, bengara, oily components, interfaces, etc., in addition to the above components, as long as the effects of the object of the present invention are not impaired. An activator, purified water, a fragrance and the like can be appropriately blended depending on the purpose.

  The dosage form of the third agent can be used in various dosage forms such as liquid, gel, cream, etc., but is preferably powdered from the viewpoint of easy handling.

  The oxidative hair dye of the present invention is used by uniformly mixing each agent at the time of use. Usually, the first agent may be charged into the second agent and then mixed with the third agent. For example, 1 to 10 parts by weight of the applicator filled with 1 to 10 parts by weight of the second agent is used. After adding the first agent and then adding 1 to 5 parts by weight of the third agent, the mixture is sealed and shaken uniformly. In this case, it is preferable that the first agent is liquid, gel or cream, the second agent is liquid, and the third agent is in powder form. In addition, the mixing method of the 1st agent-the 3rd agent is not limited to the said mixing order.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to this Example. The blending amount is wt% unless otherwise specified. “POE” is an abbreviation for polyoxyethylene, and the number in parentheses represents the number of added moles.

(Sample preparation)
A cream-form first agent of the following A-1, A-2, and A-3, a liquid second agent of the following B-1, and a powdery third agent of the following C-1 were respectively prepared by conventional methods. The first agent to the third agent were mixed at the mixing ratio shown in Table 1 to produce oxidative hair dyes of Examples , Reference Examples and Comparative Examples, and were subjected to the following evaluation test.

[Oxidative hair dye 1st agent (A-1)]
Sodium carbonate 4.0
Paraphenylenediamine 0.5
Resorcin 0.3
Metaaminophenol 0.1
POE (40) cetyl ether 3.0
POE (20) cetyl ether 2.0
Liquid paraffin 2.0
Cetanol 5.0
Stearyltrimethylammonium chloride 1.0
Anhydrous sodium sulfite 0.5
Sodium ascorbate 0.5
Edetate disodium 0.3
Purified water residue Total 100.0

[Oxidative hair dye 1st agent (A-2)]
Sodium carbonate 13.0
Paraphenylenediamine 0.5
Resorcin 0.3
Metaaminophenol 0.1
POE (40) cetyl ether 3.0
POE (20) cetyl ether 2.0
Liquid paraffin 2.0
Cetanol 5.0
Stearyltrimethylammonium chloride 1.0
Anhydrous sodium sulfite 0.5
Sodium ascorbate 0.5
Edetate disodium 0.3
Purified water residue Total 100.0

[Oxidative hair dye 1st agent (A-3)]
28% ammonia water 8.0
Paraphenylenediamine 0.5
Resorcin 0.3
Metaaminophenol 0.1
POE (40) cetyl ether 3.0
POE (20) cetyl ether 2.0
Liquid paraffin 2.0
Cetanol 5.0
Stearyltrimethylammonium chloride 1.0
Anhydrous sodium sulfite 0.5
Sodium ascorbate 0.5
Edetate disodium 0.3
Purified water residue Total 100.0

[Oxidative hair dye second agent (B-1)]
35% hydrogen peroxide solution 16.0
POE (40) cetyl ether 0.5
POE (20) cetyl ether 0.2
Cetanol 1.0
Hydroxyethanediphosphonic acid 0.2
Purified water residue Total 100.0

[Oxidative hair dye 3rd agent (C-1)]
Sodium carbonate 90.0
Carboxymethylcellulose 10.0
Total 100.0

(Test Example 1; Evaluation of low temperature stability of first agent)
Each hair dye first agent of Examples , Reference Examples and Comparative Examples shown in Table 1 is filled in a screw tube, stored at 5 ° C. for 30 days, a part of the sample is extended on a glass plate, The presence or absence was visually evaluated according to the following evaluation criteria. The results are shown in Table 2.

<Evaluation criteria>
○: No precipitate is observed.
Δ: Slight deposits are observed.
X: Precipitates are observed.

(Test Example 2; Evaluation of high temperature stability of first agent)
Each hair dye 1st agent of the Example , the reference example, and the comparative example which were described in Table 1 was filled in the screw tube, and after 30-day preservation | save at 40 degreeC, it evaluated visually according to the following evaluation criteria. The results are shown in Table 2.

○: Separation is not recognized.
Δ: Slight separation is observed.
X: Separation is recognized.

(Test Example 3; Evaluation of mixing properties)
The 1st agent-3rd agent of each Example and reference example which were described in Table 1 were mixed, or the 1st agent and 2nd agent of each comparative example were mixed, and the ease of mixing was evaluated. That is, the first agent and the second agent of each Example and Reference Example were filled in the applicator and shaken lightly, and then the third agent was further added and shaken. Further, the first agent and the second agent of each comparative example were filled in the applicator and shaken. The ease of mixing at this time was evaluated based on the following evaluation criteria. The results are shown in Table 2.

<Evaluation criteria>
○: Uniformly mixed.
Δ: Slightly uniform mixing is not possible.
X: Not uniformly mixed.

(Test Example 4; Evaluation of skin irritation)
The samples of each Example , Reference Example and Comparative Example mixed in Test Example 1 were spotted on the forearms of 10 panelists. After standing for 30 minutes, it was washed away with water and the state of redness after 1 hour was evaluated. The results are shown in Table 2.

<Evaluation criteria for skin irritation>
○: Redness is observed in 2 or less of 10 people.
(Triangle | delta): Redness is recognized by 3-5 persons in 10 persons.
X: Redness is recognized in 6 or more of 10 people.

(Test Example 5: Evaluation of irritating odor)
The odors of the samples of Examples , Reference Examples, and Comparative Examples mixed in Test Example 1 were evaluated by 10 panelists based on the following evaluation criteria. The results are shown in Table 2.

<Evaluation criteria for pungent odor>
○: 8 or more of 10 responded that there was no irritating odor.
Δ: 5 to 7 out of 10 responded that there was no irritating odor.
X: 4 or less of 10 responded that there was no irritating odor.

(Test Example 6: Evaluation of dyeability and brightness)
The samples of Examples , Reference Examples and Comparative Examples mixed in Test Example 1 were uniformly applied to a human hair bundle (black) having a weight of 3 g and a length of 10 cm. After application, the mixture was allowed to stand at 30 ° C. for 30 minutes, then washed with water, the hair bundle was dried using a dryer, and the hair was dyed brown. The degree of dyeing (dyeability) of the hair bundle after drying was evaluated by 10 professional panelists based on the following evaluation criteria. Further, whether or not the hair bundle after drying was dyed in a bright color (lightness) was evaluated based on the following evaluation criteria using a hair coloring level scale of the Japan Hair Color Association (hereinafter abbreviated as JHCA). The results are shown in Table 2. The initial lightness of the hair bundle used was level 4 on the JHCA hair coloring level scale.

<Evaluation criteria for dyeability>
○: 8 or more out of 10 responded that the dyeability was good.
(Triangle | delta): 5-7 persons answered that it was favorable dyeing | staining property.
X: 4 or less of 10 responded that the dyeability was good.

<Lightness evaluation criteria>
○: Level 9 or higher on the JHCA hair coloring level scale.
(Triangle | delta): It is level 6-8 in the hair coloring level scale of JHCA.
X: Level 5 or less on JHCA hair coloring level scale.

(Test Example 7: Evaluation of hair damage degree)
The state of the hair bundle after the evaluation in Test Example 6 was observed with an electron microscope (magnification 3000 times), and hair damage was evaluated based on the following evaluation criteria. The results are shown in Table 2.

<Evaluation criteria for hair damage>
○: Almost no damage was observed in the hair cuticle.
Δ: Damages such as bulges, cracks, and peeling were slightly observed in the hair cuticle.
X: Damages such as bumps, cracks, and peeling were clearly observed in the hair cuticle.

From the results in Table 2, the three-part oxidative hair dye of the present invention ( Examples 1-2 and Reference Examples 1-2 ) is compared with the two-part oxidative hair dye (Comparative Examples 1-4). Thus, it can be seen that there is no irritating odor or skin irritation caused by the hair dye. Moreover, it turns out that the hair after description is excellent in dyeability, and can fully suppress the damage to hair.

  Moreover, even if it is a case where only an alkali agent is carbonate like Examples 1-2, while being excellent in dyeability, it turns out that hair can be dye | stained to a bright color.

Claims (4)

It consists of a first agent containing an alkali agent and an oxidation dye, a second agent containing hydrogen peroxide, and a third agent containing carbonate , wherein the alkaline agent of the first agent is a carbonate, A three-component oxidative hair dye, wherein the content of the salt in the oxidative hair dye is 10 to 20% by weight in terms of sodium carbonate.   Furthermore, the oxidative hair dye of Claim 1 formed by containing a thickener in the 3rd agent.   The oxidative hair dye according to claim 2, wherein the thickener is a cellulosic polymer.   The oxidative hair dye in any one of Claims 1-3 whose 3rd agent is a powder form.