JP6081077B2 - Oxidative hair dye - Google Patents

Description

  The present invention relates to an oxidative hair dye containing a specific oxidative dye.

  The oxidative hair dye used for coloring hair is based on the hair dyeing principle in which an oxidative dye permeated into hair is dyed by oxidative polymerization. There are acidic and alkaline oxidative hair dyes, and the latter oxidative hair dyes are particularly excellent in long-lasting color retention of hair. It is known that the color development differs depending on the selection and combination of the oxidation dyes. According to the combination of paraphenylenediamine, which is a dye intermediate, and 2,4-diaminophenoxyethanol, which is a coupler, the color is blue. To do. As an example of an oxidative hair dye containing arginine together with such a combination of oxidative dyes, Patent Document 1 discloses one having an alkalinity of about 14.8 (see Paragraph 0040 of Patent Document 1). 2 discloses that having an alkalinity of about 10.0 (see paragraph 0068 of Patent Document 2).

JP 2006-342124 A JP 2007-126415 A

  By the way, when the hair dyeing treatment is performed using the above-described oxidative hair dye blended with paraphenylenediamine and 2,4-diaminophenoxyethanol, there is a case where the entire hair is poorly dyed (uniform dyeing property). . Since good levelness is naturally required, improvement in levelness when blending paraphenylenediamine and 2,4-diaminophenoxyethanol is desired.

  In view of the above circumstances, an object of the present invention is to provide an oxidative hair dye blended with paraphenylenediamine and 2,4-diaminophenoxyethanol which has improved leveling.

  The inventors of the present invention have found that if arginine is also added to an oxidative hair dye containing paraphenylenediamine and 2,4-diaminophenoxyethanol, the leveling property is improved. And although the leveling property deteriorated easily as the alkalinity of the oxidative hair dye became low, the knowledge which can reduce the deterioration of leveling property by the mixing | blending of arginine was acquired. Based on the above findings, the present invention has been completed.

  That is, the oxidative hair dye according to the present invention is an alkaline one obtained by mixing a first agent containing paraphenylenediamine and 2,4-diaminophenoxyethanol and a second agent containing an oxidizing agent. The first agent has an alkalinity of 9.0 or less in which arginine is blended. Here, “alkalinity” is the amount of 0.1 mol / L hydrochloric acid necessary to neutralize 1 g of the first agent (unit of alkalinity: ml).

  The pH of the oxidative hair dye according to the present invention may be 11.0 or less. When the pH is lowered, there is a general tendency that the leveling property due to paraphenylenediamine and 2,4-diaminophenoxyethanol deteriorates, but the deterioration of leveling property can be reduced by blending arginine.

  In addition, the blending amount of arginine in the oxidative hair dye according to the present invention is preferably 5% by mass or less because the greater the amount, the higher the risk of causing skin irritation.

  The first agent in the oxidative hair dye of the present invention may contain ammonia. When the oxidative hair dye is adjusted to a specific pH with ammonia, the level dyeing is worse than when adjusted to the specific pH with arginine, but the leveling is improved by arginine used in combination with ammonia. .

  The oxidative hair dye according to the present invention may be creamy. Since the bath ratio of the creamy oxidative hair dye (the amount of the oxidative hair dye attached to the hair) is usually smaller than that of the liquid, the levelness of the cream is likely to be worse than that of the liquid. However, the deterioration of levelness is reduced by arginine.

  The oxidative hair dye according to the present invention may be used for hair dyeing hair having a chemical treatment history. Without arginine blending, the hair part that was damaged by chemical treatment was dyed darker than other hair parts, resulting in poor leveling of the whole hair. Sexual deterioration is reduced. The “hair with a chemical treatment history” means a hair treatment involving a chemical reaction in hair with a reducing agent such as thioglycolic acid or an oxidizing agent such as hydrogen peroxide (for example, permanent wave treatment, oxidative hair dye). It is the hair after the hair dyeing treatment) is performed.

  According to the oxidative hair dye of the present invention, even if the alkalinity of the first agent that affects the alkalinity of the oxidative hair dye is 9.0 or less, arginine is blended in the first agent. , Deterioration of leveling due to paraphenylenediamine and 2,4-diaminophenoxyethanol is reduced.

  First agent for oxidative hair dye according to the present embodiment (hereinafter sometimes simply referred to as “first agent”), second agent for oxidative hair dye (hereinafter simply referred to as “second agent”) And the present invention will be described below based on the oxidative hair dye.

(First agent)
The first agent of this embodiment contains an oxidative dye and arginine (typical as the first agent of this embodiment has a water content of 60% by mass or more). Moreover, you may mix | blend the known 1st agent raw material with the 1st agent which concerns on this embodiment as an arbitrary raw material.

  In the first agent of this embodiment, paraphenylenediamine as a dye intermediate and 2,4-diaminophenoxyethanol as a coupler are blended as essential oxidation dyes. With these oxidation dyes, it is possible to realize a color tone including a blue color.

  When blending paraphenylenediamine, one or more selected from paraphenylenediamine salts (paraphenylenediamine hydrochloride, paraphenylenediamine sulfate, etc.) and paraphenylenediamine are used. When 2,4-diaminophenoxyethanol is blended, one or more selected from 2,4-diaminophenoxyethanol salts (such as 2,4-diaminophenoxyethanol hydrochloride) and 2,4-diaminophenoxyethanol are used.

  You may mix | blend the 1st agent of this embodiment with 1 type, or 2 or more types of oxidation dyes other than paraphenylenediamine and 2, 4- diaminophenoxyethanol. By this blending, it becomes possible to dye in various colors including a blue color.

  When a dye intermediate other than paraphenylenediamine is blended in the first agent of this embodiment, examples of the dye intermediate include paramethylaminophenol, toluene-2,5-diamine, and toluene-3,4-diamine. Phenylenediamine derivatives; phenol derivatives such as orthoaminophenol; and the like.

  When a coupler other than 2,4-diaminophenoxyethanol is added to the first agent of this embodiment, the coupler includes a phenylenediamine derivative such as metaphenylenediamine; 5-aminoorthocresol, 5- (2-hydroxy Aminophenol derivatives such as ethylamino) -2-methylphenol and metaaminophenol; resorcin; and the like.

  The compounding density | concentration of the oxidation dye in the 1st agent of this embodiment is 0.05 to 2.5 mass%, for example.

  Although the compounding quantity in the 1st agent of this embodiment of arginine is not specifically limited, For example, they are 0.01 mass% or more and 10 mass% or less, 0.1 mass% or more and 5 mass% or less are good, 0.3 mass % To 2% by mass is preferable, and 1% to 2% by mass is more preferable. Depending on the mixing ratio of the second agent to the first agent, if the arginine content is too large, it may irritate the skin. If the amount is too small, the leveling may not be sufficiently improved. is there.

  In addition to the above-mentioned paraphenylenediamine, 2,4-diaminophenoxyethanol, and arginine, the raw materials optionally blended in the first agent of the present embodiment are the same as the known first agent raw materials. Examples of the raw material to be optionally blended include alkali agents, higher alcohols, nonionic surfactants, cationic surfactants, polyhydric alcohols, hydrocarbons, oils and fats, antioxidants, chelating agents, and direct dyes.

  The alkali agent promotes the action of the oxidant contained in the oxidative hair dye, and improves the dyeability by swelling the hair and improving the permeability of the dye into the hair. Examples of the alkaline agent include metal hydroxides such as sodium hydroxide and potassium hydroxide; metal carbonates such as sodium carbonate and potassium carbonate; metal phosphates such as sodium phosphate; ammonia; ammonium such as ammonium carbonate and ammonium sulfate. Salts; alkanolamines such as monoethanolamine, triethanolamine, isopropanolamine; and the like.

  When the alkaline agent is blended, one or two or more alkaline agents may be blended. The blending amount of the alkaline agent in the first agent of the present embodiment is, for example, pH 8.0 to 12.5. Amount. By blending arginine, the pH of the first agent can be adjusted to a specific value, but when ammonia is used in combination with the pH adjustment of the specific value, the lightness of the hair after the dyeing treatment is increased.

  Examples of the higher alcohol as the raw material for the first agent include cetanol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, and myristyl alcohol. One or two or more higher alcohols may be blended in the first agent, and the blending concentration of the higher alcohol is appropriately set, and is, for example, 2% by mass or more and 20% by mass or less.

  Nonionic surfactants as raw materials for the first agent include, for example, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol tetrafatty acid Examples include esters, glycerin fatty acid esters, sorbitan fatty acid esters, polyglycerin fatty acid esters, and sucrose fatty acid esters. One or two or more kinds of nonionic surfactants may be blended in the first agent. The blending concentration of the nonionic surfactant is, for example, 0.1% by mass or more and 15% by mass or less.

  The cationic surfactant as the raw material for the first agent is, for example, a long-chain alkyltrimethylammonium salt, a dilong-chain alkyldimethylammonium salt, a trilong-chain alkylmonomethylammonium salt, a benzalkonium-type quaternary ammonium salt, or a monoalkyl. Examples include ether type quaternary ammonium salts. One or two or more cationic surfactants may be added to the first agent, and the concentration of the cationic surfactant is, for example, 0.1% by mass or more and 3% by mass or less.

  Moreover, the dosage form of the 1st agent which concerns on this embodiment is liquid form, cream form, and gel form, for example. The viscosity of the first agent is, for example, 4000 mPa · s or more and 60000 mPa · s or less after 60 seconds measured at 25 ° C. and 12 rpm using a B-type viscometer.

  The alkalinity of the 1st agent of this embodiment is 9.0 or less. If the alkalinity is within this range, the leveling property is worse than that having an alkalinity exceeding 9.0, but the deterioration is reduced by arginine. Further, the alkalinity of the first agent of the present embodiment is preferably 0.5 or more and 9.0 or less, and more preferably 1.0 or more and 4.0 or less. The alkalinity of the oxidative hair dye and the first agent is correlated. When the alkalinity is increased, the lightness of the hair after the hair dyeing treatment is increased, and when the alkalinity is lowered, the damage imparted to the hair is reduced.

(Second agent)
The 2nd agent of this embodiment is a thing with which the oxidizing agent was mix | blended (The typical thing as a 2nd agent of this embodiment is a thing with the compounding quantity of 70 mass% or more of water.). Moreover, you may mix | blend with the 2nd agent which concerns on this embodiment by using a well-known 2nd agent raw material as an arbitrary raw material.

  Examples of the oxidizing agent blended in the second agent include hydrogen peroxide, bromate, percarbonate, and perborate. Although the compounding density | concentration of the oxidizing agent in a 2nd agent is not specifically limited, For example, they are 0.3 mass% or more and 7 mass% or less.

  As a known second agent raw material optionally blended in the second agent of the present embodiment, higher alcohol (the blending concentration is, for example, 2% by mass to 15% by mass), nonionic surfactant (the blending concentration is, for example, 0.8 5 wt% or more and 6 wt% or less), a cationic surfactant (formulation concentration is 0.1 wt% or more and 3 wt% or less, for example), polyhydric alcohol, ester oil, antioxidant, chelating agent, and the like.

  The dosage form of the second agent is not particularly limited, and examples thereof include liquid, cream, and gel.

(Oxidative hair dye)
The oxidative hair dye of this embodiment is a mixture of the first agent and the second agent of this embodiment. The mixing ratio of the first agent and the second agent is, for example, first agent: second agent = 1: 0.4-2.

  Although the compounding quantity of arginine in the oxidative hair dye of this embodiment is not specifically limited, It is 0.01 mass% or more and 5 mass% or less, 0.1 mass% or more and 3 mass% or less are good, 0.3 mass % To 2% by mass is preferable. If the blending amount of arginine is too large, irritation may be given to the skin. If the blending amount is too small, the leveling property may not be sufficiently improved.

  The dosage form at the time of use of the oxidative hair dye which concerns on this embodiment is not specifically limited, For example, liquid form, cream form, wax form, gel form, foam form (foam form) is mentioned. The viscosity of the oxidative hair dye of the present embodiment is creamy in consideration of handling properties such as application to hair and dripping. The viscosity in the case of cream is, for example, a value after 60 seconds measured at 25 ° C. and 12 rpm using a B-type viscometer is 4000 mPa · s to 50000 mPa · s, and 20000 mPa · s to 40000 mPa · s. Is good.

  The oxidative hair dye of the present embodiment is made alkaline so as to enhance the dyeability and the persistence of color retention. In addition, the pH of the oxidative hair dye of this embodiment is, for example, 8.0 or more and 11.0 or less, and 8.5 to 10.5 or less in order to reduce good staining and irritation to the scalp. Is preferably 9.0 or more and 10.0 or less.

  When the alkalinity of the oxidative hair dye of the present embodiment is lowered, the leveling property tends to deteriorate, but the deterioration of the leveling property is reduced by blending arginine. The alkalinity of the oxidative hair dye of this embodiment is, for example, 9.0 or less. The alkalinity is preferably 0.5 or more and 9.0 or less, and preferably 1.0 or more and 4.0 or less. Increasing the alkalinity increases the lightness of the hair after the hair dyeing treatment, and decreasing the alkalinity reduces the damage imparted to the hair.

  The oxidative hair dye of this embodiment is as described above. The hair to be treated with this oxidation hair dye is not particularly limited, and may be hair having a chemical treatment history such as permanent wave treatment, bleach treatment with bleaching agent, hair dyeing treatment with oxidation hair dye, etc. Hair without hair may be used.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless departing from the gist of the present invention.

(First agent)
Examples for L-arginine, 25% by mass ammonia water, monoethanolamine, sodium carbonate, and magnesium hydroxide having the concentrations shown in Table 1 below with water and examples for comparative hair dyes. One agent was prepared. These first agents include L-arginine shown in Table 1, 0.05 mass% of 2,4-diaminophenoxyethanol hydrochloride, 0.05 mass% of paraphenylenediamine, polyoxyethylene cetyl ether (HLB15) 3 mass%, cetostearyl alcohol 15 mass%, stearyltrimethylammonium chloride 1 mass%, L-ascorbic acid 0.3 mass%, anhydrous sodium sulfite 0.3 mass%, and chelating agent 0.2 It mix | blended so that it might become mass%.

(Second agent)
The common second agent for oxidative hair dyes of Examples and Comparative Examples was hydrogen peroxide 2 mass%, cetostearyl alcohol 4 mass%, polyoxyethylene cetyl ether (HLB16) 1 mass%, polyoxypropylene Stearyl ether (HLB15) 1% by mass, liquid paraffin 1% by mass, cetyltrimethylammonium chloride 0.3% by mass, chelating agent 0.1% by mass, and preservative 0.1% by mass. Prepared by blending in water.

(Oxidative hair dye)
The 1st agent and 2nd agent which were prepared above before hair dyeing | mixing were mixed by mass ratio 1: 1, and the oxidative hair dye of the Example and comparative example which are creamy was prepared.

(Target hair bundle for hair dyeing treatment)
A “low-damaged hair bundle” and a “high-damaged hair bundle” as hair dyeing treatment targets were prepared as follows. The low-damaged hair bundle is a black hair bundle (about 1 g, about 10 cm of human hair) and a bleaching agent (mixed solution of 1 part by weight of “Powder Bleach” manufactured by Milbon and 3 parts by weight of “Oldive OXIDANT 6%” manufactured by Milbon) After being applied, it was allowed to stand for 20 minutes, then washed with a shampoo ("Diess Neue Doue Willowlux" manufactured by Milbon) and then dried. For high-damaged hair bundles, the bleaching agent is applied and shampoo washed in the same manner as the preparation for low-damaged hair bundles, and after applying the first agent for straightening hair ("Richio Tulle SH / First Agent" manufactured by Milbon) 20 After leaving for a minute, washing with water, drying, and performing a hair straightening treatment with a hair straightening iron at a set temperature of 180 ° C., a second hair straightening agent (“Lisio Tulle SH 2 The agent “) is allowed to stand for 10 minutes after application, washed with water, and then dried.

(Hair dyeing treatment)
One of the oxidative hair dyes was applied to the low-damaged or high-damaged tress (mass of hair bunches: mass of oxidative hair dye = 1: 5) and left at room temperature for 20 minutes. Thereafter, the hair bundle was washed with a shampoo ("Diesse Neue Doue Willow Lux" manufactured by Milbon) and dried with warm air. The above was used as the hair dyeing process.

(Uniformity)
The difference in color tone between the low-damaged hair bundle and the high-damaged hair bundle after the hair treatment with the same oxidative hair dye was visually confirmed, and the difference in the color tone was compared for each oxidative hair dye used ( When the oxidative hair dye was the same, the color tone of the highly damaged hair bundle tended to be darker than the low damaged hair bundle. The comparison results are as shown in Table 1 below. In Table 1, Example 1 was used as a reference. The result criteria in the comparison were as follows.
○: The color difference is smaller than that between the reference hair bundles.
―: The difference in color tone is the same as the standard hair bundle.
X: The color difference is larger than between the reference hair bundles.

  In Table 1 below, the results of leveling properties of Examples 1-2 and Comparative Examples 1-3 are shown together with the alkalinity and pH of the first agent. From Table 1, it can confirm that Examples 1-2 which mix | blended arginine were advantageous to leveling property. The pH of the oxidative hair dye was about 0.6 to 0.8 lower than that of the first agent.

As the first agent for the oxidative hair dye of the reference example, a mixture of 25% by mass ammonia water having a concentration shown in Table 2 below with water was prepared. These first agents include 0.05% by mass of paraphenylenediamine, 0.05% by mass of 2,4-diaminophenoxyethanol, and 3% of polyoxyethylene cetyl ether (HLB15) in addition to the aqueous ammonia shown in Table 2. %, 1% by mass of polyoxyethylene oleyl ether (HLB16),
9% by weight of cetostearyl alcohol, 4% by weight of oleyl oleate, 1% by weight of stearyltrimethylammonium chloride,
5% by weight of polyethylene glycol, 0.3% by weight of anhydrous sodium sulfite, 0.2% by weight of L-ascorbic acid,
The chelating agent was blended so as to be 0.2% by mass and the fragrance was 0.3% by mass.

  The 1st agent and the 2nd agent for oxidation hair dyes of the above-mentioned reference example were mixed to prepare oxidation hair dyes of Reference Examples 1 and 2. In the preparation of the oxidative hair dye of Reference Example 2, an aqueous phosphoric acid solution was added to adjust the pH.

  Using the oxidation hair dye of Reference Examples 1 and 2, the hair dyeing treatment was performed in the same manner as the hair dyeing treatment using the oxidation hair dye of Example 1 above. Then, the leveling comparison was performed in the same manner as described above, with reference to Reference Example 1.

Table 2 below shows the results of leveling in Reference Examples 1 and 2. From Table 2, it can be confirmed that the leveling property deteriorated as the pH decreased.

Claims (6)

An alkaline oxidative hair dye obtained by mixing a first agent containing paraphenylenediamine and 2,4-diaminophenoxyethanol and a second agent containing an oxidizing agent,
Wherein the first agent is, Ri ammonia and 5% by weight or less of the formulation arginine was alkalinity 4.0 der the following,
Oxidizing hair dye, characterized in Rukoto used to dyeing treating hair with chemical processing history with other hair portions damaged than hair portion is increased by chemical treatment (provided that the first One agent is 2,4-diaminophenoxyethanol hydrochloride, paraphenylenediamine, metaaminophenol, 5-aminoorthocresol, resorcin, purified water, cetanol, propylene glycol, sorbite liquid, liquid paraffin, methylpolysiloxane, alkyltrimethylammonium chloride , Highly polymerized methylpolysiloxane (2), highly polymerized dimethylsiloxane methyl (aminopropyl) siloxane copolymer, hydroxyethyl cellulose, N- [2-hydroxy-3- (trimethylammonio) propyl] hydrolyzed wheat protein Liquid, L-arginine, le Tin, polyethylene glycol 4000000, dimethyldiallylammonium chloride / acrylamide copolymer solution, polyoxyethylene cetyl ether, ascorbic acid, strong aqueous ammonia, 2-amino-2-methyl-1-propanol, polyoxyethylene oleyl ether, edetate (Excluding those containing sodium, sodium hydrosulfite, stearyltrimethylammonium chloride, phenoxyethanol and fragrance) .   The oxidative hair dye of Claim 1 whose pH is 11.0 or less.   3. The oxidative hair dye according to claim 1, wherein the first agent is one in which the arginine and the ammonia are blended in such an amount that the pH is 8.0 or more and 12.5 or less.   The oxidative hair dye according to any one of claims 1 to 3, wherein the alkalinity of the first agent is 0.5 or more.   The oxidative hair dye according to any one of claims 1 to 4, which is creamy. pH is 10.0 or less, The oxidative hair dye of any one of Claims 1-5.