JP2005281142A - Kinky hair ameliorant for correcting frizzy hair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a hair quality ameliorant that is related to hair quality amelioration for gradually correcting frizzy hair by repeated treatment, useful as a cosmetic in the field of cosmetics, also usable in the field of quasi medicines, or the like, has no chemical smell getting on user's nerves during or after treatment, slight damages to the hair after treatment and corrects frizzy hair without dryness. <P>SOLUTION: The subject kinky hair ameliorant comprises a 1,1'-methylene-bis(4-isocyanatocyclohexane)/polypropylene glycol copolymer and an amino-modified silicone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to hair treatment, and more particularly to improvement of hair quality that gradually corrects curly hair by repeatedly performing treatment.

Generally, a straight perm treatment is known as a curly hair straightening treatment as a hair treatment for correcting comb hair and curly hair. Typical examples of the hair straightening treatment agent include a first agent containing a reducing agent such as thioglycolic acid or a salt thereof and an alkaline agent, and a second agent containing an oxidizing agent such as bromic acid. . That is, the keratin bond of hair keratin is cut with the reducing agent of the first agent, the hair is straightened and washed with water, and then the cystine bond is rebound with the oxidizing agent of the second agent. Can be extended.

  However, in the case of a permanent wave, a certain amount of wave can be obtained by cutting a little cystine bond, but in order to extend the hairs or curly hair, it is necessary to cut the cystine bond more than that. Therefore, ingenuity has been devised to increase the action, such as increasing the pH, increasing the concentration of thioglycolic acid, heating, or acting for a long time. For this reason, hair is damaged and accidents such as hair breakage, especially when the hair is softened by the first agent, straight operation such as comb-through is performed, and excessive hair is applied to the hair, which easily causes hair breakage. And the problem that the touch and gloss of the hair are deteriorated after the treatment, and the odor during use and after use.

Therefore, in order to improve the above-mentioned problems, curly hair that can suppress hair damage even when repeated treatments are carried out by using a one-component hair treatment agent that contains a reducing agent at a low concentration and an alkaline agent. Although a method of improving hair tangles, hair loss, split ends and cut hairs has been devised by a method of blending a straightener (Patent Document 1) and a specific anionic polymer into a hair treatment agent (Patent Document 2). However, none of these methods fully satisfy the reduction of hair damage and the improvement of feel after treatment, and there has been a demand for a hair quality improving agent that can correct hair curl with little hair damage and no hair rust. .
JP 2004-26770 A JP 2001-19623 A

The problem to be solved is to provide a hair quality improving agent that does not bother about the chemical odor during and after the treatment, has little hair damage after the treatment, and can correct curly hair without rustling.

As a result of intensive studies in view of the above circumstances, the present inventor has repeatedly used a one-type hair treatment agent that has a very low chemical odor without using a reducing agent, and thus is in use and used. It was found that it was possible to gradually correct curly hair without damaging the odor later, eliminating hair damage and roughness.

That is, the present invention provides a chemical odor characterized by containing 1,1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer and amino-modified silicone without using a reducing agent. By using a one-component hair treatment agent that is extremely low and repeatedly performing treatment with the hair treatment agent, the odor during use and after use is not a concern, and after the treatment, hair damage and rustiness are eliminated, gradually. The present invention provides a hair quality improving agent characterized by straightening curly hair.

Hereinafter, the present invention will be described in more detail. The 1,1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer that can be used in the present invention is not particularly limited, and is described in Supplementary Formulation Supplement I by Cosmetic Variety I (published by Yakuji Nippo). A 1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer is preferred.

The blending amount of the 1,1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer of the present invention is not particularly limited as long as it has an effect. On the other hand, it is preferable to select in the range of 0.01 to 50% by mass, preferably 0.05 to 30% by mass, and more preferably 0.1 to 15% by mass. When the blending amount is less than 0.01% by mass, the intended effect of the present invention may not be obtained. When the blending amount exceeds 50% by mass, stickiness appears and is not preferable as a hair quality improving agent. There may be a feeling of touch. In addition, the suitable compounding quantity of each component in the hair quality improving agent of this invention is with respect to the whole quantity of stock solution, when the hair quality improving agent is an aerosol type which mix | blended the propellant.

The amino-modified silicone that can be used in the present invention is not particularly limited as long as it is an amino-modified silicone, and these can be used singly or in appropriate combination of two or more. Examples of the amino-modified silicone include (aminoethylaminopropyl methicone / dimethicone) copolymer, aminopropyl dimethicone, and amodimethicone.

The viscosity of the amino-modified silicone is not particularly limited, but considering the usability of hair cosmetics, the viscosity at 25 ° C. is usually from 1 to 1 million mm ² / s, particularly from 30 to 100. It is preferable that it is 10,000 mm ² / s.

Further, the content of the amino-modified silicone of the present invention is not particularly limited, but is usually 0.01 to 20% by mass, preferably 0.05 to 15% by mass, based on the whole hair quality improving agent. More preferably, it is suitable to select in the range of 0.1 to 10% by mass. When the blending amount is less than 0.01% by mass, the intended improvement effect of the present invention may be difficult to obtain. When the blending amount exceeds 20% by mass, stickiness may appear and an unpleasant hand feeling is felt. It may become.

Furthermore, a hair quality improving agent was applied to the hair by blending a cationized polymer in addition to the above 1,1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer and amino-modified silicone. It is possible to prevent an excessive force from being applied to the hair during the comb-through operation, and to synergistically improve the hair damage, roughness, and feel of the hair when finished.

Specific examples of the cationized polymer include cationic cellulose derivatives, cationized starch, cationized guar gum, diallyl quaternary ammonium salt or diallyl quaternary ammonium salt and acrylamide copolymer, polyglycol / polyamine condensate, methacryloxyethyl. A trimethylammonium salt etc. are mentioned. The compounding quantity is 0.1 to 10 weight% normally with respect to the whole hair quality improving agent. If the amount is less than 0.1% by weight, a sufficient effect cannot be obtained, and if it exceeds 10% by weight, no further effect is obtained and it is not economical.

Furthermore, the hair quality improving agent used in the present invention may contain various components that can be blended with other ordinary hair treatment agents and hair cosmetics. Specific examples thereof include, for example, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyhydric alcohol fatty acid partial ester, polyoxyethylene polyhydric alcohol fatty acid partial ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil derivative Nonionic surfactants such as fatty acid diethanolamides; amphoteric surfactants such as amidoamine type, imidazolinium betaine type, sulfobetaine type; tertiary aliphatic amine salts, alkyltrimethylammonium halides, dialkyldimethylammonium halides, Cationic surfactants such as alkyl dimethyl benzyl ammonium halides; alkyl benzene sulfonates, polyoxyalkylene alkyl sulfates, alkyl sulfates, olefins Anionic surfactants such as sulfonate, alkylsulfonate, polyoxyalkylene alkyl ether phosphate, dialkylsulfosuccinate and fatty acid salt; higher fatty acids, solid paraffin, liquid paraffin, squalane, petrolatum, ester Oils such as oil; thickeners such as methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, xanthan gum, starchy, seaweed, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate, guar gum, etc .; collagen, keratin, elastin, fibroin, Hydrolysates obtained by hydrolyzing proteins such as conchiolin, soybean protein, and casein with acids, alkalis, enzymes, etc., and quaternized cation-denatured proteins, DNA and its sodium Preservatives; poly peptides such ium salt antioxidants; sequestering agents; UV absorbers; perfumes; dyes; pigments and the like.

The dosage form of the hair quality improving agent used in the present invention is not particularly limited and can be a desired dosage form such as aqueous solution, ethanol solution, emulsion, suspension, gel, liquid crystal, aerosol, shampoo, rinse, It can be applied as a hair treatment, conditioner, blow agent, foam agent, lotion, hair cream and the like.

The hair quality improving agent of the present invention may be used in a dry state or in a damp state after shampooing. Apply an appropriate amount of the above-mentioned hair quality improving agent according to a conventional method, and comb well to uniformly apply to the hair. However, there is a method of warming at room temperature or an appropriate method and leaving it for 5 to 30 minutes for washing, or leaving it without washing. By repeating this operation every day or several times a week, it is possible to gradually improve the hair curling without damaging or loosening the hair.

According to the present invention, the hair quality can be improved by a casual treatment used for daily hair care without worrying about the odor during and after use. Moreover, since a single treatment is gentle, the hair is not damaged or crushed even when repeated treatments are performed, the safety is high, and the effect of correcting curly hair by repeated treatments is excellent.

EXAMPLES Next, although an Example is given and this invention is demonstrated in detail, this invention is not limited by a following example. The amount of each component is% by weight.

Each hair treatment agent shown in Table 1 (Example 1 and Comparative Example 1 to Comparative Example 5) was prepared as a sample, and each hair bundle of 0.2 g was used as a non-chemically treated hair derived from a Japanese woman in their 20s. The hair quality improving agent was applied to the hair bundle according to the following treatment method.

(Treatment method 1) Apply 0.2 g of the hair quality improving agent to the hair bundle, comb well to allow the agent to blend in uniformly, leave it at room temperature for 20 minutes, and then wash it off. This operation once a day,
Repeat 7 times in 7 days.

The hair bundle treated by the above method was shampooed, then blow-dried, re-soaked in water, and thoroughly wetted. After the hair was naturally dried, the extension of comb hair and hair damage were evaluated according to the following criteria. The results are shown in Table 1.

The evaluation criteria are shown below.
<Extension of hair growth>
○: The wrinkles are clearly elongated compared to before the treatment. Δ: The wrinkles are slightly elongated compared to before the treatment. ×: There is almost no change compared to before the treatment.
○: Almost no damage △; Slightly damaged ×; Slightly damaged
○: Almost no cracking △; Slightly crackling ×; There is considerable palpitation <Smell of hair during and immediately after use>
○: I don't really care about the chemical odor. △;

As can be seen from the results in Table 1, in Comparative Examples 4 and 5 described above, although some combing hair improvement effect was recognized, hair damage and softness could not be improved. However, in Example 1, it was possible to improve comb hair without causing hair damage and softness.

Table 2 shows the formulation of Example 2 (foam hair treatment agent).

A foam-like hair conditioner having the above composition was prepared by a conventional method and used as a hair quality improving agent that was not washed away. After 10 shampooed and rinsed female panelists used the hair, it was 1 week later. I felt the growth. When using the hair quality improver, there were no panelists who felt uncomfortable feelings such as irritation and odor.

  The hair quality improving agent of the present invention gradually corrects comb hair, and there is no problem such as no damage to the hair after treatment and no loss of gloss or gloss. It can also be used in fields such as pharmaceuticals and quasi drugs.

Claims (1)

A comb hair improving agent comprising 1,1′-methylene-bis (4-isocyanatocyclohexane) / polypropylene glycol copolymer and amino-modified silicone.