JP2006016391A - Hair shape-regulating agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair treating agent composition capable of enduringly forming the natural curly hair/twisted hair into the straight hair, and hardly imparting damage or dry feeling to the hair. <P>SOLUTION: The first agent for regulating the hair shape contains the following components (A) to (C): (A) a keratin-reducing material; (B) a guanidine derivative represented by general formula (1) (wherein, R<SP>1</SP>is a 6-12C straight chain or branched alkyl group) or an acid addition salt thereof; and (C) a nonionic surfactant represented by general formula (2) (wherein, R<SP>2</SP>is an 8-18C straight chain or branched alkyl group; and n is a number of 1-25). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention includes a guanidine derivative that can permanently convert natural curly hairs and comb hairs, and that does not damage the hair and at the same time does not give a dry feeling. It relates to the agent.

  Intrinsic curly hairs and hairs often cause troubles such as spreading of the hair, splashing of the hair ends, and a loss of hair flow, and various correction methods have been proposed. Among such straightening methods, a typical method is a method called straight perm, which reduces hair and cuts the disulfide bonds of hair keratin sufficiently, while sticking it to the panel or passing it through a comb. It is a method of regenerating and fixing disulfide bonds by pulling straight and oxidizing in a straight state.

  However, if the wave of the hair is obtained by permanent wave treatment, it is possible to make the hair straight by permanent straight, but it is difficult to sufficiently stretch the natural curly hair and the comb hair. Moreover, even if the hair seemed to be stretched at a glance, a sufficient effect was not obtained, such as the original habit returning after a few days. For this reason, in addition to the normal straight perm treatment, for the purpose of increasing the efficiency of deformation by denaturation by heat and further reduction, a method of heating the reduced hair with an iron (see Patent Document 1), reduction was performed. A method of steaming hair and reducing again with a gel-like first agent has been proposed (see Patent Document 2). In addition, since the hair is severely damaged when the treatment conditions are tightened in order to increase the effect, sulfites having low reducing power and similar substances are used, the pH of the first agent is lowered, a specific surfactant, Some ideas have been made such as combining oils.

  However, none of these methods are sufficiently satisfactory in the straightening effect on natural curly hair and comb hair. Therefore, as a means for solving these problems, a method using a combination of a guanidine derivative or an acid addition salt thereof (see Patent Documents 3 and 4) and the like have been proposed, and a guanidine having an amide group for improving the straight setting property. A hair setting agent containing a derivative and used without being combined with a reducing composition has also been proposed (see Patent Document 5).

  However, in the method of using these guanidine derivatives or their acid addition salts in combination, since various organic solvents are used for the purpose of dissolving various guanidine derivatives or their acid addition salts, hair derived from a hair keratin reducing agent is used. Although the damage of the hair can be reduced, there is a tendency that the lipid component necessary for moisture retention in the hair is extracted by the organic solvent, and the treated hair finishes with a rough texture.

Japanese Unexamined Patent Publication No. 60-21704 JP 59-90508 A Japanese Patent Laid-Open No. 10-17441 Japanese Patent Laid-Open No. 10-17442 Japanese Patent Laid-Open No. 2004-75588

  Accordingly, an object of the present invention is to provide a hair treatment composition that can permanently convert natural curly hairs and comb hairs, and that does not damage or dry the hair.

  The present inventor makes permanent use of natural curly hair and comb hair by using a combination of a keratin reducing substance, a guanidine derivative represented by the following general formula (1) or an acid addition salt thereof, and a specific surfactant. It has been found that the first hair shape control agent that is excellent in the effect of modifying the hair, such as straightening the hair and setting the hair continuously, and that does not damage or dry the hair can be obtained.

That is, this invention provides the hair shape control agent 1st agent containing the following component (A)-(C).
(A) Keratin reducing substance
(B) A guanidine derivative represented by the general formula (1) or an acid addition salt thereof

[Wherein, R ¹ represents a linear or branched alkyl group having 6 to 12 carbon atoms. ]
(C) Nonionic surfactant represented by the general formula (2)

[Wherein, R ² represents a linear or branched alkyl group having 8 to 18 carbon atoms, and n represents a number of 1 to 25. ]

  The first hair shape controlling agent of the present invention can permanently convert natural curly hairs and comb hairs, and does not give hair damage or dryness.

  The keratin-reducing substance of component (A) may be any compound that has a reducing ability for keratin, which is a structural protein of hair. For example, thioglycolic acid, thioglycolic acid derivative, thioglycolic acid or thioglycolic acid Derivative salt, cysteine, cysteine or cysteine derivative salt, sulfite, bisulfite, the following general formula (3)

[Wherein R ³ is a hydrogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms, or R _a —O—R _b (R _a is a linear or branched alkyl group having 1 to 4 carbon atoms. , R _b represents a methylene group or a linear or branched alkylene group having 2 to 4 carbon atoms. ]
A thioglyceryl alkyl ether represented by the following formula:

[In formula, p shows the integer of 0-5, q shows the integer of 0-3, r shows the integer of 2-5. However, p and q are not 0 simultaneously. ]
The mercaptoalkylamide represented by these, its salt, etc. are mentioned.

  Among these reducing substances, as thioglycolic acid, thioglycolic acid and its glyceryl ester; as cysteine, L-cysteine, D-cysteine, N-acylcysteine, etc .; as salts of these cysteines, ammonium Salt, quaternary ammonium salt and alkanolamine salt (monoethanolamine salt, diethanolamine salt, triethanolamine salt, etc.); sodium sulfite etc. as sulfite; sodium hydrogensulfite etc. as bisulfite; thioglyceryl alkyl ether As ethoxy hydroxy propane thiol, ethoxy ethoxy hydroxy propane thiol, methoxy ethoxy hydroxy propane thiol, isopropoxy ethoxy hydroxy propane thiol, etc .; Mercaptoethyl pro Pana bromide, etc. mercaptoethyl gluconamide may be mentioned as particularly preferred.

  The keratin-reducing substance of component (A) can be used alone or in combination of two or more, and is preferably blended in the hair shape control agent first agent in an amount of 0.1 to 20% by weight, particularly 3 to 20% by weight. % Is preferable because it can be sufficiently reduced and does not damage the skin and hair.

The component (B) guanidine derivative is represented by the general formula (1). In the general formula (1), examples of the linear or branched alkyl group having 6 to 12 carbon atoms represented by R ¹ include an n-octyl group, a 2-ethylhexyl group, a decyl group, and a dodecyl group. N-octyl group and 2-ethylhexyl group are particularly preferable. The guanidine derivative (1) of component (B) may form an acid addition salt with any physiologically acceptable acid. The acid in the acid addition salt may be either an organic acid or an inorganic acid. For example, the organic acid may be an organic acid such as acetic acid, propionic acid, butyric acid, isobutyric acid, glycolic acid, lactic acid, succinic acid, or malic acid. Examples include carboxylic acids, lower alkyl sulfonic acids such as methane sulfonic acid, isethionic acid, and aminoethyl sulfonic acid, and aryl sulfonic acids such as benzene sulfonic acid, p-toluene sulfonic acid, nitrobenzene sulfonic acid, xylene sulfonic acid, and cumene sulfonic acid. . Examples of inorganic acids include hydrohalic acids such as hydrochloric acid, hydrobromic acid, and hydroiodic acid, and perchloric acid, sulfuric acid, nitric acid, phosphoric acid, carbonic acid, and the like.

  The guanidine derivative of component (B) or an acid addition salt thereof may be used in combination of two or more thereof, and the content thereof is included in the first agent of the hair shape controlling agent of the present invention from the viewpoint of curly hair straightening effect. It is preferably 1% by mass or more, more preferably 3% by mass or more, and particularly preferably 5% by mass or more. Further, the upper limit of the content is preferably 20% by mass or less, more preferably 18% by mass or less, and particularly preferably 15% by mass or less.

The nonionic surfactant of component (C) is a polyoxyethylene alkyl ether represented by the general formula (2). In the general formula (2), R ² is a linear or branched alkyl group having 8 to 18 carbon atoms, and the average added mole number n of ethylene oxide groups is 1 to 25. N is preferably 2 to 25, particularly 6 to 23. Component (C), the number of carbon atoms in R ² is the same n different, or n may be a mixture of different compounds the carbon number of the same a R ^2, may be used in combination mixtures thereof of two or more . Specific examples of the component (C) include Emulgen 102K, Emulgen 103, Emulgen 104P, Emulgen 106, Emulgen 109P, Emulgen 123P, Emulgen 150, Emulgen 1620G, Emulgen 220, etc. (above, Kao Corporation), NIKKOLBL- 2, NIKKOLBL-9EX, NIKKOLBD-4, etc. (above, Nikko Chemicals Co., Ltd.).

  The content of the nonionic surfactant of component (C) is preferably 0.1 to 20% by mass, particularly 3 to 18% by mass, in the first hair shape control agent of the present invention, from the viewpoint of straightening effect.

In the present invention, in the case of using an inorganic acid addition salt as a guanidine derivative in terms of the stability of the composition, it is necessary to use a polyoxyethylene alkyl ether having a relatively short alkyl chain length and a small number of EO addition moles. preferable. When an organic carboxylic acid addition salt such as a lactate is used as the acid addition salt of the guanidine derivative, it is preferable to use a polyoxyethylene alkyl ether having a relatively long alkyl chain length and a large EO addition mole number. For example, for sulfates and carbonates of guanidine derivatives, R ² in the general formula (2) is a linear alkyl group having 8 to 12 carbon atoms, particularly 8 to 10 carbon atoms, and n is 2 It is preferable to use polyoxyethylene alkyl ethers of -10, especially 6-9. For lactate, glycolate, succinate and the like of guanidine derivatives, R ² in the general formula (2) is an alkyl group having 14 to 18 carbon atoms, particularly 16 to 18 carbon atoms, and It is preferable to use a polyoxyethylene alkyl ether having n of 11 to 25, particularly 16 to 20.

  From the viewpoint of solubility of the guanidine derivative, the weight ratio of the guanidine derivative of component (B) to the nonionic surfactant of component (C) is 5: 1 to 1: 5, particularly 2: 1 to 1: 1. It is preferable that

  The first hair shape controlling agent of the present invention can be made alkaline with an alkaline agent such as ammonia or a salt thereof or alkanolamines, but it is preferable to use ammonia or a salt thereof and monoethanolamine. The pH of the first hair shape control agent is preferably adjusted to 5 to 11, more preferably 6 to 10, and particularly preferably 7 to 9.6.

  The hair shape controlling agent of the present invention is preferably made into a gel system using a natural polymer or a synthetic polymer. Examples of natural polymers and synthetic polymers that can be used here include dimethyldiallylammonium chloride / acrylamide copolymer (for example, Marcote 100, Marcote 550 (or Calgon)), vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer. Copolymer [for example, copolymer 845, copolymer 937, copolymer 958 (above, GAF)], o- [2-hydroxy-3- (lauryldimethylammonio) propyl] hydroxyethylcellulose [for example, polymers JR-125, JR- 30M, JR-400 (above, Union Carbide), Leogard G (Lion Corporation)], o- [2-hydroxy-3- (trimethylammonio) propyl] guar gum [e.g., Labor gum CG-M, Labor gum CG-6L, Labor gum CG-M7, Labor gum CG-M8M (above, Dainippon Pharmaceutical Co., Ltd.), Jaguar C-13S, Jagua C-14S, Jaguar C-17, Jaguar C-210, Jaguar C-162, HI-CARE1000 (above, Rhone-Poulenc)], cationized dextran, methylcellulose [for example, Metroles SM (Shin-Etsu Chemical Co., Ltd.) ], Ethyl cellulose [e.g., Brilliance 515 (Ikeda Bussan)], hydroxyethyl cellulose [e.g., cellosize QP4400H, QP52000H (above, Union Carbide), SE-600 (Daicel Chemical Industries, Ltd.)], hydroxypropylcellulose [E.g., Nisso HPC-H, HPC-M (Nippon Soda Co., Ltd.)], hydroxypropyl methylcellulose [e.g., Metroise 60SH series, Metroze 65SH series, Metroise 90SH series (above, Shin-Etsu Chemical Co., Ltd.)], Pullulan [for example, pullulan PF-20, pullulan PI-20 (above, Hayashibara Corporation)], pullulan fatty acid ester, xanthan gum, Hydroxyethyl xanthan gum [for example, Labor gum EX (Dainippon Pharmaceutical Co., Ltd.)] and the like can be mentioned.

  These natural polymers and synthetic polymers can be used in combination of two or more, and the content thereof is 0.05 to 20% by mass, and further 0.1 to 10% by mass in the first hair shape control agent of the present invention. %, Particularly 0.5 to 5% by mass is preferred.

  Moreover, the hair shape control agent 1st agent of this invention can also contain an organic solvent. Organic solvents include monohydric alcohols such as ethanol; monovalent or polyvalent aromatic alcohols such as 2-phenoxyethanol, benzyl alcohol, 2-phenylethanol and 2-benzyloxyethanol; triethylene glycol, 1,3-butylene Glycols such as glycol, propylene glycol, hexylene glycol, diethylene glycol; ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol mono n-butyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol ethyl ether, diethylene glycol mono n-butyl ether Glycol ethers such as N-methylpyrrolidone, N-alkylpyrrolidone such as N-ethylpyrrolidone, ethylene carbonate Alkylene carbonate such as propylene carbonate; .gamma.-butyrolactone, .gamma.-valerolactone, lactones such as .gamma.-caprolactone.

  Two or more kinds of these organic solvents can be used in combination, and the content thereof is 0.05 to 20% by mass, more preferably 0.1 to 10% by mass, particularly 0.5 to 0.5% in the first hair shape control agent of the present invention. 5 mass% is preferable.

  In addition to the above-mentioned components, the first hair shape control agent of the present invention may contain components used in normal permanent liquid first agents and components used in the cosmetics field depending on the purpose. Examples of such optional components include inorganic alkalis, fatty acids, fats and oils, hydrocarbons, silicone derivatives, surfactants other than component (C), amino acid derivatives, protein derivatives, chelating agents, preservatives, antioxidants, plant extracts. , Vitamins, ultraviolet absorbers, pH adjusters, fragrances and the like.

  Curling and curling correction using the first hair shape control agent of the present invention can be performed in the same manner as conventional perms (straight, wave, iron). For example, in the case of wave permanents, hair is wound around curlers and rods, followed by a first agent treatment step in which the first agent is impregnated into the hair and left for a predetermined time, followed by impregnating the hair with a second agent containing an oxidizing agent. Then, after passing through the second agent treatment step that is allowed to stand for a predetermined time, the hair is removed from the curler and the rod, washed with water and dried. In addition, an intermediate treatment step in which the hair is rinsed with water or an acidic treatment solution can be passed between the first agent treatment step and the second agent treatment.

  In the case of a straight perm that corrects comb hair and makes it straight, in the first agent treatment step, use a comb or brush to apply the first agent to the comb hair and adjust it to a straight hair shape and leave it for a predetermined time. In the subsequent second agent treatment step, the second agent is applied to the hair using a comb or a brush. Further, an intermediate treatment step can be performed between the first agent treatment step and the second agent treatment step by rinsing the hair with water or an acidic treatment solution. After the second agent treatment step for a predetermined time, the hair is washed with water and dried.

  The coating amount of the first hair shape control agent of the present invention is preferably 0.1 to 4 times by mass, particularly 0.5 to 2.5 times by mass with respect to the hair to be treated. Moreover, the treatment time of the hair by the hair shape control agent 1st agent of this invention is suitably adjusted in the range of 1-120 minutes according to the strength, thickness, and damage condition of the hair to process. At this time, if necessary, it may be heated, and it is preferably 30 to 55 ° C, particularly 35 to 50 ° C.

  In straightening treatment of comb hair, it is possible to obtain a higher straightening effect using a flat iron. In the case of using a flat iron, after the first agent treatment step and before the second agent treatment step, the first agent is washed out from the hair, dried with a dryer or the like, and then ironed. The temperature of the iron is preferably set to 120 to 180 ° C, particularly 140 to 180 ° C.

  The second agent used subsequently to the first hair shape controlling agent of the present invention contains an oxidizing agent. Examples of the oxidizing agent include bromate, perborate, and hydrogen peroxide, and examples of the bromate and perborate include sodium salt, potassium salt, and ammonium salt. In the case of hydrogen peroxide, the content of the oxidizing agent is preferably 0.5 to 3% by mass, particularly preferably 0.75 to 2.5% by mass in the second agent, from the viewpoint of straightening effect and preventing hair damage. Moreover, the component used for the normal 2nd agent and the component used in the cosmetics field | area can be added according to the objective. The standing time during the treatment is appropriately adjusted between 1 and 30 minutes. Furthermore, in addition to the second agent containing the first agent and the oxidizing agent of the present invention, a treatment agent containing a hair protecting component or the like can be used in combination.

Experimental example <solubility score>
The first hair shape control agent (test solution) shown in Table 1 was prepared. This test solution was heated to 60 ° C., stirred vigorously for 1 hour, and then allowed to stand at room temperature for 12 hours. The state of dissolution was visually evaluated according to the following criteria.

5: Transparent uniform dissolution 4: Uniform dispersion 3: Liquid phase separation 2: A small amount of solid phase precipitation 1: Solid phase precipitation

Examples 1-8 and Comparative Examples 1-9
The 1st agent shown in Table 2 and the 2nd agent shown in Table 3 were prepared, and the curly hair straightening effect when treating hair using them was compared, and the feeling of crustiness of the treated hair was compared.

<Correction effect score>
A tres was made of comb hair having a curl radius φ of about 5 to 8 mm. A 1st agent is apply | coated to this, and after leaving to stand for 1 hour, it wash | cleans with water. The second agent is applied to this and left for 20 minutes, followed by washing with water and drying. The curly hair straightening effect is determined according to the following criteria.

3: High correction effect (φ25mm or more)
2: Weak correction effect (φ15mm to less than 25mm)
1: Almost no habits (less than φ15mm)

<Spathy score>
The score of each example and comparative example treatment hair when the treated hair of Comparative Example 9 was set to “1” and the untreated hair was set to “4” was evaluated by five panelists, and the average value was shown.

  Examples 1 to 8 containing components (A) to (C) were all good results. Comparative Examples 1 to 6 using propanol for dissolving the guanidine derivative showed a feeling of crispness. Comparative Examples 7 and 8 not containing a guanidine derivative were inferior in curly hair straightening effect.

Claims (4)

A hair shape control agent first agent containing the following components (A) to (C).
(A) Keratin reducing substance
(B) A guanidine derivative represented by the general formula (1) or an acid addition salt thereof

[Wherein, R ¹ represents a linear or branched alkyl group having 6 to 12 carbon atoms. ]
(C) Nonionic surfactant represented by the general formula (2)

[Wherein, R ² represents a linear or branched alkyl group having 8 to 18 carbon atoms, and n represents a number of 1 to 25. ]   The hair shape control agent 1st agent of Claim 1 which contains 0.1-20 mass% of component (A), 1-20 mass% of component (B), and 1-20 mass% of component (C).   The hair shape controlling agent 1st agent of Claim 1 or 2 used for comb hair as a straight perm.   A method for straightening hair using a combination of the first hair shape control agent according to claim 1 and a flat iron.