JP4502903B2 - Two-component oxidative hair dye / bleaching agent composition - Google Patents

Description

  The present invention relates to a two-component oxidative hair dye / bleaching agent composition, and particularly to a two-component oxidative hair dye / bleaching agent composition that reduces scalp irritation and causes less hair damage.

  The purpose of using hair dyes is “white hair dyeing” to make white hair inconspicuous by dyeing white hair black or brown, and “fashion dyeing” to give black hair a bright color and change its appearance to add fashion. Alternatively, there is “fashionable hair dyeing” or the like that combines both functions.

  As such a hair dye, an oxidative hair dye is conventionally known. However, the oxidative hair dye includes a first agent containing an oxidative dye or an alkaline agent as a main component and a second agent containing an oxidizer as a main component. A two-component oxidative hair dye composed of an agent is widely used. Such two-component oxidative hair dye is used by mixing the first agent and the second agent at the time of use.

  The above-mentioned two-component oxidative hair dye decomposes the melanin pigment in hair by reacting the alkaline agent contained in the first agent and the oxidizing agent (mainly hydrogen peroxide) contained in the second agent (decolorization). ) And the dye is colored to make the hair brighter.

  In recent years, there has been a strong demand for dyeing hair in a bright shade no matter what purpose it is used. In order to dye hair in a light shade, it is necessary to decompose the melanin pigment in the hair. There is a tendency to increase the blending amount of the alkaline agent in the first agent.

  By the way, as the alkaline agent contained in the first agent, organic amines such as aqueous ammonia and monoethanolamine are generally used. There is a problem that the problem of irritation occurs, or the hair is greatly damaged and the hair is soft.

  In order to solve such problems, various techniques have been proposed so far. For example, Patent Document 1 discloses a technique for alleviating an irritating odor or skin irritation by blending a salt such as ammonium chloride or ammonium sulfate together with an alkaline agent. Patent Document 2 proposes a method of blending ammonium carbonate or ammonium bicarbonate together with an alkali agent. Further, for the same purpose, a method of blending a hydroxycarboxylic acid (for example, malic acid, citric acid, etc.) or a salt thereof in the first agent (for example, Patent Document 3), a polyvalent together with ammonium carbonate or ammonium bicarbonate. A method using a carboxylic acid in combination (for example, Patent Document 4) has also been proposed.

As described above, various proposals have been made so far to prevent the harmful effects caused by alkaline agents, and these techniques have shown some improvement effect. In reality, it cannot be said that the improvement has been able to cope with recent trends. In addition, this situation is the same for a two-component decoloring agent composition that is composed of a two-component oxidative hair dye that does not contain an oxidative dye in the first agent. Hereinafter, the oxidative hair dye composition and the oxidative decolorant composition are collectively referred to as “oxidative hair dye / decolorant composition”.
Japanese Patent Application Laid-Open No. 1-165514 Japanese Patent Application Laid-Open No. 60-155108 Patent Claim etc. JP, 2000-351718, A Claim etc. JP, 2002-363048, A Claims etc.

  The present invention has been made under such circumstances, and an object of the present invention is to provide a two-component oxidative hair dye / bleaching agent composition that can alleviate scalp irritation and minimize hair damage. is there.

The two-component oxidative hair dye / bleaching agent composition of the present invention that has achieved the above object is composed of a first agent containing at least an alkaline agent and a second agent containing at least an oxidizing agent. In the two-component oxidative hair dye / bleaching agent composition, phytic acid or a salt thereof is blended with at least one of the first agent and the second agent, and phytic acid or a salt thereof is 0 in terms of phytic acid. It has a gist in that it is contained in excess of 0.05 to 4.4% by mass.
In the two-component oxidative hair dye / bleaching agent composition of the present invention, the oxidizing agent includes hydrogen peroxide. Further, the two-component oxidative hair dye / bleaching agent composition of the present invention is preferably one in which the first agent further contains carbonate and / or bicarbonate, thereby further preventing hair damage. Can be reduced. In order to exert such effects, when carbonate and / or bicarbonate is contained, the content is 0.05 to 2.5% by mass when the first agent and the second agent are mixed. It is good to let it.

  In the present invention, in a two-component oxidative hair dye / bleaching agent composition composed of a first agent containing at least an alkaline agent and a second agent containing at least an oxidizing agent, phytic acid or a salt thereof is added to the first agent. By blending with at least one of the agent and the second agent, a two-component oxidative hair dye / bleaching agent composition that can alleviate scalp irritation and minimize hair damage could be realized.

  In the two-component oxidative hair dye / bleaching agent composition, there is a strong irritating odor due to the alkaline agent such as ammonia water contained in the first agent, there is a scalp irritation, and it causes hair damage. However, this alkaline agent is an essential component for brightly dyeing hair. In order to suppress the above-mentioned inconveniences without reducing the amount of the alkali agent in the first agent as much as possible, examination was performed from various angles. As a result, the inventors have found that the above-mentioned object can be achieved brilliantly by mixing a predetermined amount of phytic acid into the first agent and / or the second agent as a stimulant mitigating agent, and the present invention has been completed.

  Phytic acid includes chelating agents (for example, republished patents WO2003 / 017954), antioxidants (for example, JP-A-8-26977, JP-A-2005-120011, etc.), and further acid agents (for example, JP-A-8-143434). However, as a result of studies by the present inventors, it has been found that the inclusion of a predetermined amount of such phytic acid is extremely effective as an irritation reducing agent.

  Phytic acid may be contained in the form of a salt, but its content is 0.05% by mass in terms of phytic acid when mixing the first agent and the second agent (two-component oxidative hair dye / bleaching agent composition). With the above, the stimulation mitigating effect is effectively achieved. However, even if the amount of phytic acid is too large, the effect is saturated. More preferably, it is 4 mass% or less.

  It should be noted that phytic acid may be basically contained in the first agent of the oxidative hair dye composition, but may be contained only in the second agent, and further contained in both the first and second agents. It is also possible to make it. Even when it is contained only in the second agent, the effect of blending phytic acid is achieved because the first agent and the second agent are mixed and used at the time of use. However, when phytic acid is blended in both the first agent and the second agent, the content of the phytic acid may be adjusted so as to be within the above-mentioned range in total.

  The reason why the above effect can be obtained by including phytic acid has not been clarified, but could be considered as follows. That is, phytic acid is a substance having a large molecular weight of 660.1, and phytic acid forms a salt with an alkaline agent that causes irritation. It is done.

  In the two-component oxidative hair dye / bleaching agent composition of the present invention, it is also preferable to further contain carbonate and / or bicarbonate in the first agent, thereby further reducing hair damage. Can do. In order to exert such an effect, when carbonate or hydrogen carbonate (for example, ammonium carbonate or ammonium hydrogen carbonate) is contained, the content thereof is 0.05 to 2 at the time of mixing the first agent and the second agent. It is good to set it as 5 mass%.

  The two-component oxidative hair dye / bleaching agent composition of the present invention contains at least an alkaline agent such as aqueous ammonia or monoethanolamine (in the case of a hair dye, an oxidative dye) in the first agent (for example, mono Ethanolamine is 0.1% by mass or more) and the second agent contains at least an oxidizing agent such as hydrogen peroxide (for example, hydrogen peroxide is 6% by mass or less). The additive normally contained in the 2nd agent may be included.

  Examples of such additives include humectants, fats and oils, higher alcohols, lanolins, petrolatum and waxes, fluorine compounds, silicones, cationized polymers, surfactants (cationic surfactants and anionics). Surfactants, nonionic surfactants, amphoteric surfactants), thickeners / gelling agents, preservatives, chelating agents, pH adjusters / acids / alkalis, antioxidants, solvents, anti-inflammatory agents, perfumes, pigments Etc. can be blended.

  Examples of these additives include, as moisturizing agents, polyhydric alcohols such as 1,3-butylene glycol, propylene glycol, glycerin, 3-methyl-1,3-butanediol, sodium hyaluronate, citric acid Salt, chondroitin sulfate, sodium lactate, sodium 2-pyrrolidone-5-carboxylate, trimethylglycine, collagen, gelatin, elastin, collagen degrading peptide, elastin degrading peptide, keratin degrading peptide, silk proteolytic peptide, soybean proteolytic peptide, wheat Proteins and peptides such as proteolytic peptides and casein-degrading peptides and their derivatives, amino acids such as arginine, serine, glycine, and glutamic acid, elastin, collagen, aloe extract, hamamelis water, loofah water, chamomile extract, can Animal and vegetable extract component such as Uekisu like.

  Oils and fats include liquid oils such as liquid paraffin, squalane, hydrogenated polyisobutene, palm oil, palm oil, palm kernel oil, safflower oil, olive oil, avocado oil, sesame oil, evening primrose oil, wheat germ oil, macadamia nut oil, Plants such as hazelnut oil, rosehip oil, meadow foam oil, tea tree oil, peppermint oil, corn oil, rapeseed oil, sunflower oil, wheat germ oil, cottonseed oil, soybean oil, peanut oil, rice bran oil, shea fat, jojoba oil Examples include oils and fats.

  As higher alcohols, linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyltetradecinol, lanolin alcohol, Examples thereof include branched chain alcohols such as cholesterol, phytosterol, hexyl decanol, isostearyl alcohol, and octyl decanol.

  Examples of lanolins include lanolins such as liquid lanolin, reduced lanolin, and adsorption-purified lanolin.

  Examples of the petroleum jelly and waxes include petroleum jelly, solid paraffin, candelilla wax, carnauba wax, rice wax, wax wax, beeswax, paraffin wax, microcrystalline wax, petrolatum, and the like.

  Examples of the fluorine compound include fluorine compound derivatives such as perfluoropolyether, polyperfluoroethoxymethoxydifluorohydroxyethyl, polyperfluoroethoxymethoxydifluoromethyl distearyl amide, polyperfluoroethoxymethoxydifluoroethyl polyethylene glycol phosphoric acid, and the like. It is done.

  Silicones include low-viscosity dimethylpolysiloxane, high-viscosity dimethylpolysiloxane, cyclic dimethylsiloxane (decamethylcyclopentasiloxane), methylphenylpolysiloxane, diphenylpolysiloxane, silicone resin, silicone rubber, amino-modified polysiloxane, and cation-modified. Examples include polysiloxane, polyether-modified polysiloxane, and fluorine-modified polysiloxane.

  Examples of the cationized polymers include cationized cellulose derivatives, cationized starches, cationized guar gums, diallyl quaternary ammonium polymers or copolymers, and quaternized polyvinylpyrrolidone derivatives.

  Examples of the cationic surfactant include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, alkyltrimethylammonium chloride, distearyldimethylammonium chloride, ethyl lanolin sulfate fatty acid aminopropylethyldimethylammonium, and the like.

  Anionic surfactants include fatty acid salts, alkyl sulfate salts, alkylbenzene sulfonate salts, polyoxyethylene alkyl sulfate salts, polyoxyethylene fatty amine sulfate salts, acyl N-methyl taurate salts, alkyl ether phosphate ester salts. , N-acyl amino acid salts and the like.

  Nonionic surfactants include polyoxyethylene (POE) alkyl ether, polyoxyethylene alkyl ether sorbitan fatty acid partial ester, polyhydric alcohol fatty acid partial ester, polyglycerin fatty acid ester, polyoxyethylene fatty acid ester, alkyldimethylamine oxide, Examples thereof include alkyl polyglycosides and alkyl glucosides.

  Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaines, alkylamidodimethylaminoacetic acid betaines, and 2-alkyl-N-carboxy-N-hydroxyimidazolinium betaines.

  Thickening and gelling agents include guar gum, xanthan gum, carrageenan, alginic acid, tragacanth gum, starch derivatives, sodium carboxymethyl cellulose, carboxyvinyl polymer, acrylic acid / methacrylic acid ester copolymer, acrylic acid / alkyl methacrylate acrylic copolymer Examples include coalescence and polyvinyl alcohol.

  Examples of the preservative include p-hydroxybenzoates, phenoxyethanol, 1,2-pentanediol, 1,2-hexanediol, quaternary ammonium salts and the like.

  Examples of chelating agents include edetates, phosphonic acids, polyamino acids and the like.

  As pH adjusters / acids / alkalis, phosphoric acid, malic acid, tartaric acid, carbonic acid, fumaric acid, citric acid, lactic acid, glycolic acid, succinic acid, hydrochloric acid, sulfuric acid, nitric acid or salts thereof, sodium hydroxide, hydroxide Examples thereof include potassium, disodium hydrogen phosphate, monoethanolamine, diethanolamine, triethanolamine, arginine, aqueous ammonia, aminomethylpropanol, and salts thereof.

  Examples of the antioxidant include ascorbic acid and its salts, or ascorbic acid derivatives, sodium sulfite, thioglycolic acid and its salts, cysteine, tocopherol and its derivatives, butylhydroxytoluene, butylhydroxyanisole and the like.

  Examples of solvents include lower alcohols such as ethanol and 2-propanol. Examples of the anti-inflammatory agent include glycyrrhizic acid and its derivatives, guaiazulene and the like. Moreover, when using as a hair dye composition, the well-known oxidation dye (For example, paraphenylenediamine, paraaminophenol, resorcin, etc.) will be mix | blended with the 1st agent.

  The two-component oxidative hair dye composition of the present invention can be used to treat hair on a daily basis, and its dosage form is various such as liquid, mist, cream, gel, foam, and aerosol. There are no particular limitations.

  Next, the present invention will be described more specifically by way of examples. However, the following examples are not intended to limit the present invention, and all modifications can be made without departing from the spirit of the above and following descriptions. To be included in the scope.

Example 1
Various raw materials were blended at various blending ratios shown in Tables 1 and 2 below to prepare various two-component bleaching compositions (mixing ratio 1: 1 of the first agent and the second agent). This depigmenting agent composition was applied to the inner side of the forearms of 25 to 30 panelists and allowed to stand for 15 minutes. And in each experimental group (Examples / Comparative Examples No. 1 to 9), “Example is stronger in stimulation”, “Same degree” and “Comparative example is stronger in stimulation” are evaluated, The quality was judged by the ratio of the evaluation. The results are also shown in Tables 1 and 2 below.

  This method shows that the smaller the ratio evaluated as “strong stimulation” is, the lower the irritation, and it is confirmed that there is a correlation with the scalp stimulation. The evaluation results are shown in Tables 1 and 2 below.

  As is clear from these results, it can be seen that skin irritation (scalp irritation) is reduced by containing a predetermined amount of phytic acid.

Example 2
Various raw materials were blended at various blending ratios (Nos. 10 to 13) shown in Table 3 below to prepare various two-component bleaching compositions (mixing ratio of the first agent and the second agent 1: 1). This decoloring agent composition was applied to a hair bundle of human-derived hair and allowed to stand at 35 ° C. for 30 minutes. Then, after washing with water, normal shampoo and treatment, it was air-dried. Then, the touch of the hair was evaluated according to the following criteria by professional panelists (10 persons).
(Evaluation criteria for feel)
A: The finger is very good, smooth and flexible.
○: Good fingering, smooth and flexible.
Δ: Slightly poor fingering and slightly less flexibility.
×: Bad fingering and less flexibility.

  The results are also shown in Table 3 below, and it can be seen that a good condition was obtained with the one containing a predetermined amount of phytic acid (No. 10 to 12).

  In each of the above examples, the mixing ratio of the first agent and the second agent is 1: 1, but the mixing ratio is not limited to this, and the mixing ratio can be adjusted as appropriate.

Claims (4)

In a two-component oxidative hair dye / bleaching agent composition comprising a first agent containing at least an alkaline agent and a second agent containing at least an oxidizing agent (excluding bromate), phytic acid or a salt thereof is added. The phytic acid or a salt thereof is contained in an amount of more than 0.05 to 4.4 % by mass in terms of phytic acid. Two-component oxidative hair dye / bleaching agent composition.   The two-component oxidative hair dye / bleaching agent composition according to claim 1, wherein the oxidizing agent is hydrogen peroxide.   The two-component oxidative hair dye / bleaching agent composition according to claim 1 or 2, wherein the first agent further contains carbonate and / or bicarbonate.   The two-component oxidative hair dye / bleaching agent composition according to claim 3, wherein the carbonate and / or bicarbonate is contained in an amount of 0.05 to 2.5% by mass.