JP6108596B2 - Hair cosmetics - Google Patents

Description

  The present invention relates to a hair cosmetic that can impart good firmness, stiffness and a feeling of thickness to treated hair.

  Conventionally, there is a need for a hair cosmetic that can enhance the firmness and stiffness of hair due to the fact that the firmness and stiffness of hair decreases with age. Under such circumstances, for example, hair cosmetics in which hydrolyzed keratin or pantothenyl alcohol is blended as a component for enhancing the firmness and stiffness of hair have been proposed (Patent Documents 1 and 2, etc.).

JP 2008-280326 A JP2012-167042A

  By the way, there is a need to increase the sense of thickness of the hair (feeling that each hair has become thicker) in addition to the need to increase the elasticity and stiffness of the hair. It is difficult to increase the sense of thickness of the hair at the same time only by blending ingredients that can enhance the stiffness.

  This invention is made | formed in view of the said situation, The objective is to provide the hair cosmetics which can provide favorable firmness, stiffness, and a feeling of thickness to the hair after a process.

  The hair cosmetic composition of the present invention that can achieve the above object is characterized in that (A) hydrolyzed keratin, (B) difatty acid acylglutamic acid lysine salt, and (C) pantothenyl alcohol are blended. It is.

  ADVANTAGE OF THE INVENTION According to this invention, the hair cosmetics which can provide favorable firmness, firmness, and a feeling of thickness to the hair after a process can be provided.

  As described above, hydrolyzed keratin and pantothenyl alcohol are known as components having a function of imparting firmness and stiffness to hair. However, the present inventors, when using both of these, can use only hydrolyzed keratin or only pantothenyl alcohol, and can impart good firmness and stiffness to the hair as compared to the case where the amount is simply increased. I found.

  Further, the present inventors have made further studies, and in addition to hydrolyzed keratin and pantothenyl alcohol, if the hair cosmetic is composed of a difatty acid acylglutamic acid lysine salt, it is good for treated hair. The inventors have found that an excellent hair quality can be obtained by imparting an appropriate thickness feeling while imparting firmness and stiffness, and the present invention has been completed.

  As described above, the hydrolyzed keratin that is the component (A) relating to the hair cosmetic composition of the present invention is used in combination with the pantothenyl alcohol that is the component (C) to impart good elasticity and stiffness to the hair. It is a component.

  As the hydrolyzed keratin, any of those derived from wool, those derived from human hair, and those derived from feathers can be used, but those derived from feathers are more preferable. The number average molecular weight of hydrolyzed keratin (provided by the manufacturer of hydrolyzed keratin) is preferably 30000 or less, more preferably 1000 or less, and preferably 300 or more.

  The blending amount of the hydrolyzed keratin (A) component in the hair cosmetic is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of better exhibiting the above function. It is more preferable. However, when there is too much quantity of (A) component in hair cosmetics, there exists a possibility that the hair after a process may become hard too much. Therefore, the blending amount of the hydrolyzed keratin as the component (A) in the hair cosmetic is preferably 5% by mass or less, and more preferably 3% by mass or less.

  The di-fatty acid acylglutamic acid lysine salt which is the component (B) according to the hair cosmetic composition of the present invention is a hair after treatment without impairing the function of imparting firmness and stiffness to the hair by the components (A) and (C). It is a component which has a function which raises the feeling of thickness.

  Examples of the difatty acid acylglutamic acid lysine salt include dilauroylglutamic acid lysine salt (sodium salt and the like).

  The blending amount of the difatty acid acylglutamic acid lysine salt as the component (B) in the hair cosmetic composition is preferably 0.01% by mass or more, and 0.05% by mass from the viewpoint of better exhibiting the above functions. More preferably. However, when there is too much quantity of (B) component in hair cosmetics, the increase in the manufacturing cost of hair cosmetics will be caused and the productivity will be reduced. Therefore, the blending amount of the difatty acid acylglutamic acid lysine salt as the component (B) in the hair cosmetic is preferably 5% by mass or less, and more preferably 1% by mass or less.

  As described above, the pantothenyl alcohol which is the component (C) relating to the hair cosmetic composition of the present invention is used in combination with the hydrolyzed keratin which is the component (A), thereby imparting good elasticity and stiffness to the hair. It is a component.

  The blending amount of pantothenyl alcohol which is the component (C) in the hair cosmetic is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, from the viewpoint of better exhibiting the above function. It is more preferable. However, when there is too much quantity of (C) component in hair cosmetics, the hair after a process tends to become stiff. Therefore, the compounding amount of pantothenyl alcohol which is the component (C) in the hair cosmetic is preferably 3% by mass or less, and more preferably 1% by mass or less.

  The hair cosmetic composition of the present invention preferably further contains (D) an aromatic alcohol. Usually, in hair, the tip of the hair is most damaged, but by blending (D) aromatic alcohol, the hair cosmetics provide firmness, firmness imparting function, and imparting a sense of thickness to the hair. It is possible to obtain a hair cosmetic material having a good balance between the function and the damage repair function of the hair tip. Among these, for the function of imparting a feeling of thickness to the hair and the function of repairing damage to the hair tips, (D) aromatic alcohol is more favorable when used in combination with (B) difatty acid acylglutamic acid lysine salt. It is thought that there is.

  Specific examples of the aromatic alcohol as component (D) include, for example, phenoxyethanol, phenoxyisopropanol, benzyl alcohol, and the like, and only one of these may be used, or two or more may be used in combination. Although good, phenoxyethanol is particularly preferred.

  The blending amount of the aromatic alcohol which is the component (D) in the hair cosmetic is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, from the viewpoint of better exhibiting the above function. It is more preferable. However, when there is too much quantity of (D) component in hair cosmetics, there exists a possibility that it may become easy to feel the dryness to the hair after a process. Therefore, the blending amount of the aromatic alcohol which is the component (D) in the hair cosmetic is preferably 2% by mass or less, and more preferably 1% by mass or less.

  The hair cosmetic composition of the present invention uses water as a solvent. It is preferable that the compounding quantity of the water in hair cosmetics is 80-98 mass%, for example.

  In addition to the above-mentioned components, various components blended in conventionally known hair cosmetics can be added to the hair cosmetic of the present invention as necessary. Examples of such additive components include nonionic surfactants, polyhydric alcohols, amino acids and derivatives thereof, preservatives, and fragrances.

  Specific examples of the nonionic surfactant include, for example, glycerin fatty acid ester, polyoxyethylene alkyl ether such as polyoxyethylene cetyl ether, polyoxyethylene polyoxypropylene alkyl ether, fatty acid polyethylene glycol, polyoxyethylene monolaurate (20) Polyoxyethylene sorbitan fatty acid esters such as sorbitan, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbite fatty acid esters such as polyoxyethylene isostearate (3) sorbitan, sorbitan fatty acid esters such as sorbitan monostearate, polystearic acid poly ( 2-10) Polyglycerin fatty acid esters such as glyceryl, sucrose fatty acid esters and the like. It is preferable that the compounding quantity of the nonionic surfactant in hair cosmetics is 0.1-5 mass%, for example.

  Specific examples of the polyhydric alcohol include ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, 1,3-butylene glycol and the like. It is preferable that the compounding quantity of the polyhydric alcohol in hair cosmetics is 0.1-10 mass%, for example.

  Specific examples of amino acids and derivatives thereof include, for example, glycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophan, cystine, cysteine, methionine, proline, hydroxyproline, aspartic acid, glutamic acid, arginine, Histidine, lysine, pyrrolidone carboxylic acid or salt thereof, acylated amino acid or salt thereof, N-lauroyl-L-glutamate di (phytosteryl-2-octyldodecyl), N-lauroyl-L-glutamate di-2-octyldodecyl, N- Examples include lauroyl-L-glutamate di-2-hexyldecyl and N-lauroyl-L-glutamate di (cholesteryl 2-octyldodecyl). It is preferable that the compounding quantity of the amino acid and its derivative in hair cosmetics is 0.001-3 mass%, for example.

  Specific examples of the preservative include, for example, benzoic acid and salts thereof (sodium salt and the like); paraoxybenzoic acid esters and salts thereof (sodium salt and the like) such as methyl paraoxybenzoate, propyl paraoxybenzoate and butyl paraoxybenzoate; Salicylic acid and salts thereof; sorbic acid and salts thereof; methylisothiazolinone; methylchloroisothiazolinone / methylisothiazolinone; and the like.

  The hair cosmetic composition of the present invention may contain saccharides, plant / seaweed extract, fragrance and the like in addition to the above-mentioned additive components.

  There is no restriction | limiting in particular about the dosage form of the hair cosmetics of this invention, Although it can be set as various dosage forms, such as lotion shape, cream shape, and gel shape, it is more preferable that it is lotion shape.

  The hair cosmetic composition of the present invention comprises a shampoo, a treatment agent, a styling agent, a hair deforming agent (including a permanent wave agent and a hair straightener), a pretreatment agent for hair deformation treatment, an intermediate treatment agent for hair deformation treatment, hair It can be in the form of various hair cosmetics such as a post-treatment agent for deformation treatment, a hair dye, a pre-treatment agent for hair dyeing treatment, an intermediate treatment agent for hair dyeing treatment, and a post-treatment agent for hair dyeing treatment.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In Tables 1 and 2 below, the amount of each component is shown in% so that the total amount of hair cosmetics is 100%, and in Table 3, the total amount of shampoo is 100%. % Is mass%, and in these tables, the display of% is omitted and only the numerical value indicating the blending amount is displayed. Furthermore,% described in this example is based on mass (mass%) unless otherwise specified.

Examples 1-5 and Comparative Examples 1-7
The hair cosmetics of Examples 1 to 5 and Comparative Examples 1 to 7 were prepared with the compositions shown in Tables 1 and 2, and evaluated according to the following procedures. However, the hair cosmetic composition of Comparative Example 7 using calcium pantothenate instead of (C) pantothenyl alcohol was evaluated because the components were deposited after preparation and a good dosage form was not obtained. There wasn't.

  A plurality of human hair bundles collected from the same person (hair bundles of 25 cm in length, 5 g per hair bundle) were prepared, washed with a shampoo having the composition shown in Table 3, and rinsed with water.

  After applying 0.3 ml of the hair cosmetic composition of any of Examples 1 to 5 or Comparative Examples 1 to 6 to the wet hair bundle after shampooing, rinsing with water and drying, Five expert evaluators evaluated the feeling of thickness and the condition of repairing damage to the hair ends.

  For each of the above evaluations, the condition of the hair after treatment with the hair cosmetic composition of Example 2 was used as a reference (2 points: good), and 3 points were given when the hair condition was better than the above-mentioned reference. Each of the 5 evaluators scored a point where the hair condition is slightly inferior to that of the above case, and 0 points when the hair condition is inferior to that of the above criteria. Summarized by summing up the points.

  Each evaluation result is shown in Tables 1 and 2.

  In Tables 1 and 2, “with a total of 100” in the column of water means that the total amount of each component other than water constituting the hair cosmetic is 100% by adding the amount of water. Means. The “methyl isothiazolinone aqueous solution” described in Tables 1 and 2 has a concentration of 0.95%. Further, “polyoxyethylene sorbitan monolaurate” described in Tables 1 and 2 was an ethylene oxide having an average added mole number of 20.

  In Table 3, “(EO)” described in each component means ethylene oxide, and the numerical value before that means the average number of moles added of ethylene oxide. Moreover, the “appropriate amount” in the column of “citric acid” in Table 3 is the amount required to adjust the pH of the shampoo to 5.1.

  As shown in Tables 1 and 2, hair treated with the hair cosmetics of Examples 1 to 5 containing (A) hydrolyzed keratin, (B) difatty acid acylglutamic acid lysine salt, and (C) pantothenyl alcohol (C) Compared with the hair after processing with the hair cosmetics of Comparative Examples 1 to 6 not containing pantothenyl alcohol, the firmness, stiffness and thickness are good.

  In addition, although the hair cosmetics of the comparative example 5 are examples which increased the compounding quantity of (A) hydrolysis keratin instead of the mixing | blending of (C) pantothenyl alcohol, the hair cosmetics of Examples 1-5 are Although the total amount of (A) hydrolyzed keratin and (C) pantothenyl alcohol is less than the amount of (A) hydrolyzed keratin according to the hair cosmetic composition of Comparative Example 5, the treated hair Has improved the elasticity and stiffness of the. From this, in the hair cosmetics of Examples 1 to 5, (A) hydrolyzed keratin and (C) pantothenyl alcohol act synergistically, so that any of these is simply blended in a larger amount. It can also be said that the excellent function of imparting firmness and stiffness to the hair can be secured.

  Moreover, in addition to (A) component, (B) component, and (C) component, the hair cosmetics of Examples 1 to 4 blended with (D) aromatic alcohol do not blend with (D) aromatic alcohol. Compared with the hair cosmetic of Example 5, the hair tip after the treatment can be repaired well, and the hair has a function of imparting firmness and stiffness, a function of imparting a sense of thickness to the hair, and The ability to repair damage is secured in a well-balanced manner.

Claims (4)

A hair cosmetic comprising (A) hydrolyzed keratin, (B) difatty acid acylglutamic acid lysine salt, ( C) pantothenyl alcohol , and (D) phenoxyethanol . (A) The amount of hydrolyzed keratin is 0.1 to 5% by mass, (B) the amount of difatty acid acylglutamic acid lysine salt is 0.01 to 5% by mass, and (C) pantothenyl alcohol amount is Ri 0.01-3% by mass, (D) the hair cosmetic composition according to claim 1 amount of phenoxyethanol is from 0.1 to 2 wt%. The hair cosmetic composition according to claim 1 or 2, wherein the hair cosmetic composition is used by a method in which the hair is washed off after being applied to the hair. The hair cosmetic composition according to any one of claims 1 to 3, which is in the form of a lotion, cream or gel.