JP5579396B2 - Hair cosmetics - Google Patents

Description

  The present invention relates to a hair cosmetic that can impart a good slipperiness to hair and can impart smoothness with high uniformity throughout even if the hair has a different degree of damage for each part.

  In recent years, chemical treatment of hair such as hair coloring and permanent wave treatment and heat treatment such as curling hair using an iron have been actively performed. The hair that has undergone such a treatment is particularly damaged at the tip of the hair, resulting in a difference in feel between the root and the tip of the hair, and the portion from the middle in the length direction of the hair toward the tip of the hair undulates. , The tip of the hair tends to splash and spread.

  Mono long-chain acyl arginine is known as a component capable of imparting cohesion to the hair as described above, and a hair cosmetic using the same has been proposed (Patent Document 1).

JP 2004-35426 A

  The present inventors also examined hair cosmetics using acyl arginine. As a result, acyl arginine has a guanidino group that has a high ability to adsorb to hair and a fatty chain that is a hydrophobic group. It was found that the hair surface can be easily adsorbed, and the hair surface can be adjusted to give a good slip feeling.

  However, on the other hand, when the cosmetic treatment or heat treatment as described above is repeated and the hair cosmetics using acyl arginine are applied to the hair whose part has a different degree of damage, the degree of damage is reduced. The smoothness of the hair differs between the vicinity of the small root and the end of the hair having a large degree of damage, and there is room for improvement in this respect.

  The present invention has been made in view of the above circumstances, and its purpose is to impart a good slipperiness to the hair, and also to impart smoothness with high uniformity throughout even the hair with different degrees of damage. It is in providing the hair cosmetics which can do.

  The hair cosmetic composition of the present invention that has achieved the above object is characterized in that at least acyl arginine, a diester of dibasic acid, and a cationic surfactant are blended.

  For example, when hair cosmetics containing acyl arginine are applied to hair with different degrees of damage at the root and tip of the hair, a certain amount of slip can be imparted to the hair, but on the other hand, the hair is smooth and smooth. May not be uniformly applied.

  As a result of intensive studies, the present inventors have found that hair cosmetics composed of a dibasic acid diester and a cationic surfactant blended with acyl arginine are different in degree of damage for each part. In addition, the present inventors have found that the smoothness-imparting action of acyl arginine on the hair can be more effectively extracted, and that the smoothness can be imparted with high uniformity over the entire hair, and the present invention has been completed.

  In addition, even if the hair cosmetics of the present invention have different degrees of damage for each part, the reason why it can impart smoothness with high uniformity throughout is not clear, but by having the above composition The acyl arginine is preferentially adsorbed by the portion with a high degree of damage (for example, the hair tip portion), and the smoothness of the portion with a low degree of damage (for example, the root portion) and the smoothness of the portion with a high degree of damage It is thought that it may be equivalent.

  ADVANTAGE OF THE INVENTION According to this invention, the hair cosmetics which can provide a favorable slip feeling to hair and can provide smoothness with high uniformity over the whole even if it is hair from which the damage degree differs can be provided.

  As the acyl arginine used in the hair cosmetic composition of the present invention, those represented by the following general formula (1) are preferable.

  In the general formula (1), R is a linear or branched, saturated or unsaturated fatty acyl group having 2 to 22 carbon atoms.

Specific such acylarginine, N ^alpha - mono acetyl arginine, N ^alpha - mono propionyl arginine, N ^alpha - mono-2-ethyl-hexanoyl arginine, N ^alpha - monodecanoyl arginine, N ^alpha - Monorauroiru arginine, N ^alpha - mono myristoyl arginine, N ^alpha - monopalmitoyl arginine, N ^alpha - mono-stearoyl-arginine, N ^alpha - monoisostearate stearoyl arginine, N ^alpha - monooleyl arginine, N ^alpha - mono octanoyl arginine, N ^alpha - mono Monoacyl arginine such as octyldodecanoyl arginine, N ^α -monobehenoyl arginine, N ^α -mono coconut oil fatty acid acyl arginine, N ^α -mono palm kernel oil fatty acid acyl arginine, N ^α -mono beef tallow fatty acid acyl arginine; Only two of these may be used, or two or more may be used in combination. Among these, N ^alpha - mono lauroyl arginine are particularly preferred.

  The blending amount of acyl arginine in the hair cosmetic is preferably 0.01% by mass or more from the viewpoint of better ensuring the effect of its use (effect of imparting smoothness and slipperiness to the hair). More preferably, it is at least 05% by mass. However, if the amount of acyl arginine in the hair cosmetic is too large, the hair after treatment tends to be stiff and stiff, so the amount of acyl arginine in the hair cosmetic is 5% by mass or less. It is preferably 3% by mass or less.

  Examples of the diester of dibasic acid used in the hair cosmetic composition of the present invention include di-2-ethylhexyl succinate, diisopropyl adipate, di-2-ethylhexyl adipate, diethyl sebacate, diisopropyl sebacate, di-2-sebacate. Examples include ethylhexyl and dibutyloctyl sebacate, and only one of them may be used, or two or more may be used in combination. Among these, diethyl sebacate and diisopropyl adipate are particularly preferable because they can penetrate well into the hair.

  The blending amount of the dibasic acid diester in the hair cosmetics is 0.01 from the viewpoint of better ensuring the effect of the use (the effect of increasing the uniformity of the whole hair of the smoothness imparting effect by the hair cosmetics). The content is preferably at least mass%, more preferably at least 0.1 mass%. However, if the amount of the dibasic acid diester in the hair cosmetic composition is too large, the hair after treatment may become sticky, or the specific odor resulting from the dibasic acid diester may become tight. The blending amount of the dibasic acid diester in the material is preferably 10% by mass or less, and more preferably 5% by mass or less.

  In the hair cosmetic composition of the present invention, the mixing ratio of acyl arginine and diester of dibasic acid is preferably from 1: 2 to 1:30 in terms of mass ratio. With such a mixing ratio, acyl arginine and By using together with the diester of the dibasic acid, the effect of imparting smoothness to the hair with high uniformity throughout is further improved.

  Examples of the cationic surfactant used in the hair cosmetic composition of the present invention include fatty acid amidoamines (such as dimethylaminoethylamide stearate and dimethylaminopropylamide stearate), monoalkyl quaternary ammonium salts (lauryltrimethylammonium chloride). Cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, lauryltrimethylammonium bromide, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide), dialkyl quaternary ammonium salts (distearyldimethylammonium chloride, chloride) Dioleyldimethylammonium, ethyl lanolin sulfate fatty acid aminopropylethyldimethylammonium), alkylpyridinium salts It is like benzethonium chloride, may be used only one of these may be used in combination of two or more. Among these, it is preferable to use a monoalkyl type quaternary ammonium salt and a dialkyl type quaternary ammonium salt in combination because the hair feel improvement effect becomes better.

  Although the suitable compounding quantity of the cationic surfactant in hair cosmetics may be fluctuate | varied by the balance with the other component (especially other surfactant and oil-based component mentioned later) mix | blended with hair cosmetics, for example, 0 0.1% by mass or more is preferable, 0.2% by mass or more is more preferable, 10% by mass or less is preferable, and 5% by mass or less is more preferable.

  The hair cosmetic composition of the present invention preferably further contains an ester of a tetravalent sugar alcohol or a dimer thereof and a fatty acid. By blending an ester of a tetravalent sugar alcohol or its dimer and a fatty acid, it becomes a hair cosmetic that can further improve the feel of the hair tip part where the degree of damage is large and impart smoothness with higher uniformity. .

  Examples of esters of tetravalent sugar alcohols and fatty acids include esters of erythritol such as erythritol triethylhexanoate and fatty acids; pentaerythrityl tetraisostearate, pentaerythrityl tetraoctanoate, pentaerythrityl tetraethylhexanoate, tripoly And esters of pentaerythritol and fatty acids, such as pentaerythrityl hydroxystearate. Examples of esters of tetravalent sugar alcohol dimers and fatty acids include (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl, hexahydroxystearic acid dipentaerythrityl, hexa And esters of dipentaerythritol and fatty acids such as dipentaerythrityl oxystearate. As the ester of tetravalent sugar alcohol or a dimer thereof and a fatty acid, those exemplified above may be used singly or in combination of two or more. Among these, an ester of erythritol and a fatty acid, such as erythritol triethylhexanoate, is preferable because of better adsorption to hair.

  The blending amount of the tetravalent sugar alcohol and the fatty acid ester in the hair cosmetic is preferably 0.01% by mass or more, and 0.1% by mass from the viewpoint of ensuring the above-mentioned effect by its use better. % Or more is more preferable. However, if the amount of tetravalent sugar alcohol and fatty acid ester in the hair cosmetic composition is too large, the hair after treatment tends to become stiff and stiff, so the tetravalent sugar alcohol in the hair cosmetic composition. The blending amount of the ester of fatty acid and fatty acid is preferably 7% by mass or less, and more preferably 5% by mass or less.

  In the hair cosmetic composition of the present invention, it is preferable to use water as a main solvent (including a dispersion medium, the same shall apply hereinafter). In addition, you may use only water for a solvent and, as needed, organic solvents, such as lower alcohols (alcohol having 6 or less carbon atoms), such as ethanol and isopropanol, are about 5 mass% or less in the total amount of the solvent. May be used in combination with water. It is preferable that the compounding quantity of the solvent in hair cosmetics shall be 60-90 mass%, for example.

  In addition to the above-described components, the hair cosmetic of the present invention may be blended with various components used in cosmetics such as ordinary hair cosmetics, as long as the effects of the present invention are not impaired. it can. Examples of such components include surfactants (other than the above components), oily components, wetting agents, preservatives, chelating agents, fragrances, and coloring agents.

  As the surfactant, an anionic surfactant, a nonionic surfactant and an amphoteric surfactant (excluding acyl arginine) can be used. Examples of the anionic surfactant include fatty acid salts such as sodium coconut fatty acid, coconut oil fatty acid triethanolamine, triethanolamine laurate, and potassium stearate; metal soap such as calcium myristate and aluminum isostearate; polyoxyethylene Alkyl ether carboxylates such as sodium tridecyl ether acetate and sodium polyoxyethylene lauryl ether; acyl lactates such as sodium stearoyl lactate, sodium isostearoyl lactate and potassium stearoyl lactate; coconut oil fatty acid sodium acyl glutamate, sodium lauroyl glutamate, N-acyl glutamates such as potassium stearoyl glutamate; sodium lauryl sulfate, triethanol sulfate lauryl sulfate Alkyl sulfate salts such as sodium alkyl, alkyl (12,13) sulfate and ammonium lauryl sulfate; alkyl ether sulfate salts such as polyoxyethylene sodium lauryl sulfate and polyoxyethylene lauryl ether sulfate triethanolamine; polyoxyethylene oleyl ether phosphorus Acid, polyoxyethylene cetyl ether phosphoric acid, polyoxyethylene alkyl ether phosphoric acid ester salts such as sodium polyoxyethylene alkyl phenyl ether phosphate; and the like.

  Nonionic surfactants include, for example, polyoxyethylene alkyl ethers (polyoxyethylene stearyl ether, polyoxyethylene cetyl ether, polyoxyethylene lauryl ether, etc.), polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxy Propylene alkyl ether (polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene behenyl ether, polyoxyethylene polyoxypropylene 2-decyltetradecyl ether, polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene water Lanolin, polyoxyethylene polyoxypropylene glycerin ether, etc.), polyoxyethylene polio Cypropylene glycol, glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester (such as sorbitan monostearate), polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan fatty acid ester, polyoxyalkylene benzyl ether, polyoxyethylene castor oil, Examples include polyoxyethylene hydrogenated castor oil, alkyl polyglycoside, N-alkyldimethylamine oxide, polyoxyethylene propylene glycol fatty acid ester, and the like. Examples of the amphoteric surfactant include cocamidopropyl betaine, lauryldimethylaminoacetic acid betaine, lauramidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine.

  Examples of the oil component include fats and oils, hydrocarbons, esters other than the above-mentioned various esters, higher alcohols, and silicones. Examples of the wetting agent include glycerin, polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, xylitol, sorbitol, maltitol, pyrrolidone carboxylic acid, and the like. Examples of the preservative include methyl paraoxybenzoate, propyl paraoxybenzoate, sodium benzoate, phenoxyethanol, and methylisothiazolion.

  The hair cosmetic composition of the present invention includes, for example, a type of hair rinse, a type of hair rinse, a hair treatment, a hair conditioner, and the like. The hair cosmetic composition of the present invention can also be used as a chemical treatment agent such as a hair straightener, a permanent wave agent, or a hair color agent. Furthermore, the hair cosmetic composition of the present invention can be used as a pretreatment agent or a posttreatment agent in the case of using the above chemical treatment agent, and also as a hair styling agent.

  When the hair cosmetic composition of the present invention is a rinse-in type hair rinse, hair treatment, hair conditioner, etc., it is usually applied by applying a suitable amount to the hair after washing with shampoo and then washing with water if necessary. Is done. The shampoo used for washing the hair before applying the hair cosmetic composition of the present invention is not particularly limited, and various conventionally known shampoos can be used.

  Moreover, when the hair cosmetic composition of the present invention is a type of hair rinse, hair treatment, hair conditioner, etc. that does not wash away, it can be used by a method in which an appropriate amount is evenly applied to the hair and blended.

  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 composition is 100%. The% is mass%. In Tables 1 to 3, the% is omitted, and only the numerical value indicating the blending amount is displayed.

Examples 1-7 and Comparative Examples 1-5
The hair cosmetics of Examples 1 to 7 and Comparative Examples 1 to 5 were prepared with the compositions shown in Tables 1 and 2.

  Some of the raw materials used for the preparation of hair cosmetics include components (solvents and the like) other than the components listed in the table, but Tables 1 and 2 show the tables included in such raw materials. The amount of only the components described in is shown as the blending amount. And in Table 1 and Table 2, “total 100” in the column of purified water means the total amount of each component other than purified water constituting the hair cosmetic (raw materials including components other than those listed in the table) Means that the amount of purified water is 100% by adding the amount of “purified water” to the “total amount including the amount of components other than those listed in the table”.

  In addition, “cetostearyl alcohol” in Tables 1 and 2 is used as a viscosity modifier for hair cosmetics, and “appropriate amount” in the blending amount means that the viscosity of hair cosmetics is 20000 cps. It means that it mix | blended with the quantity.

In addition, the raw material used for preparation of the hair cosmetics of Examples 1-7 and Comparative Examples 1-5 is as follows.
(1) N α ^- mono-lauroyl arginine: Ajinomoto Healthy Supply Co., Ltd., "Amisefu AL-01 (trade name)".
(2) Lauroyllysine: “Amihope LL (trade name)” manufactured by Ajinomoto Healthy Supply Co., Ltd.
(3) Diethyl sebacate: “Diethyl sebacate (trade name)” manufactured by Nippon Seika Co., Ltd.
(4) Diisopropyl adipate: “DIA (trade name)” manufactured by Nippon Seika Co., Ltd.
(5) Behenyltrimethylammonium chloride: “Kachinal DC-80 (trade name)” manufactured by Toho Chemical Industry Co., Ltd.
(6) Distearyldimethylammonium chloride: “NIKKOL CA-3475V (trade name)” manufactured by Nikko Chemicals.
(7) Erythrityl triethylhexanoate: “Saracos E-38 (trade name)” manufactured by Nisshin Oillio Group.
(8) Tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl: “Cosmol 168EV (trade name)” manufactured by Nisshin Oillio Group.

  For the hair cosmetics of Examples 1 to 7 and Comparative Examples 1 to 5, the following sensory evaluation and physical property values were measured.

<Sensory evaluation>
Panelists (10 persons with hair that is longer than the shoulders) are panelists (all of whom have experienced hair treatment and permanent wave treatment on their hair), and each panelist has one expert evaluator. The effects of using the hair cosmetics of the examples and comparative examples were evaluated.

  To each panelist's hair, 6 g of a shampoo composition having the composition shown in Table 3 was applied and washed, followed by washing with water. Thereafter, 3 g of the hair cosmetic composition of Comparative Example 1 was applied as a standard product to the left half of the head of each panelist, and Examples 1 to 7 or Comparative Examples 2 to 5 were applied to the right half of the head. After applying 3 g of the hair cosmetic composition, each hair cosmetic composition was thoroughly blended into the hair, and then washed away. Then, each panelist's hair was dried with a dryer and finished.

  In Table 3, “with a total of 100” in the column of purified water means that the total amount of components other than purified water constituting the shampoo composition is 100% by adding the amount of purified water. Means that

  Smoothness of the hair on the left half of the head (hair on the side treated with the hair cosmetic of Comparative Example 1) for each panelist's hair after applying and washing each hair cosmetic and drying with a dryer The expert evaluator evaluated the uniformity of the smoothness of the hair in the right half of the head and the feeling of slipping of the hair based on the uniformity of the hair and the feeling of slipping of the hair.

Each of the above evaluations was scored in five stages as follows, and the scores of all the evaluators were totaled. These results are shown in Table 4.
Good ... +2.
Somewhat good +1.
Neither ... 0.
Not very good ...- 1.
Not good ... -2.

<Physical property measurement>
A plurality of hair bundles (0.5 g) consisting of hair having a length of 20 cm were prepared and subjected to the following bleaching treatment to chemically damage the hair.

  First, it contains 6.0% by mass of 35% by weight hydrogen peroxide water, and 100% by mass with purified water, and 8.5% by mass of 25% by mass ammonia water. A bleaching agent for bleaching treatment was prepared by mixing an equal amount of 100% by weight with a bleaching agent. Next, each hair bundle was immersed in 100 ml of the bleaching agent and shaken in a constant temperature shaker at 35 ° C. for 30 minutes to bleach each hair bundle and washed with purified water. This bleaching process was repeated 5 times.

  Thereafter, hair for measuring the average friction coefficient and the variation of the friction coefficient (10 pieces each) was collected from each hair bundle subjected to the bleach treatment. Then, the remaining hair bundle was washed with 1 g of a shampoo composition having the composition shown in Table 3 and rinsed, and then 1 g of the hair cosmetic of Examples 1 to 7 or Comparative Examples 1 to 5 was applied to each. I got used to it. Thereafter, each hair bundle was washed away and dried to finish.

  For the hair collected after the bleach treatment (hair before treatment with the hair cosmetic) and the hair in each hair bundle after finishing (hair after treatment with the hair cosmetic), the average coefficient of friction (MIU) and the hair The coefficient of friction (MMD) was measured.

  Ten collected hairs were arranged at 1 mm intervals on a slide glass, and both ends were fixed with a cellophane tape to obtain a measurement sample. In order to collect hair, ones with the same thickness as possible were selected. These measurement samples were subjected to MIU and MMD measurements in a constant temperature and humidity chamber (25 ° C., 50% RH) using a slip tester (“KES-SE (STP)” manufactured by Kato Tech Co., Ltd.). For measurement, silicon rubber was used as a friction element, a load of 25 g was applied, and a friction tester was moved from the root part of the hair toward the tip part at a speed of 1 mm / sec to measure MIU and MMD.

  The MIU change rate (%) was determined from the MIU of the hair before the treatment with the hair cosmetic and the MIU of the hair after the treatment with the hair cosmetic. Moreover, the MMD change rate (%) was determined from the MMD of the hair before the treatment with the hair cosmetic and the MMD of the hair after the treatment with the hair cosmetic. The change rate of MIU and the change rate of MMD were calculated according to the following equations.

Rate of change (%) = 100 × {1- (b / a)}
In the above formula, the rate of change (%) is the rate of change of MIU or the rate of change of MMD, a is MIU or MMD before treatment with hair cosmetics, and b is MIU or MMD after treatment with hair cosmetics. It is.

  That is, the larger the change rate of MIU, the better the slipperiness of the hair by the treatment with the hair cosmetic, and the greater the change rate of the MMD, the smoother the hair by the treatment with the hair cosmetic. Means an improvement with high uniformity throughout. These results are also shown in Table 4.

  As shown in Table 4, the hair treated with the hair cosmetics of Examples 1 to 7 in which acyl arginine, diester of dibasic acid and cationic surfactant were blended contained acyl arginine and diester of dibasic acid. Compared with the hair treated with the hair cosmetic composition of Comparative Example 1 that has no smoothness uniformity and slipperiness by sensory evaluation, and also has a large change rate of MIU and MMD, It can be seen that the smoothness of the untreated hair is improved with high uniformity and the feeling of sliding is also improved.

On the other hand, hair treated with the hair cosmetic of Comparative Example 2 not containing a dibasic acid diester, hair treated with the hair cosmetic of Comparative Example 3 not containing an acyl arginine, diester of a dibasic acid The hair treated with the hair cosmetic composition of Comparative Example 4 blended with another ester instead of and the hair treated with the hair cosmetic composition of Comparative Example 5 blended with lauroyl lysine instead of acyl arginine had smoothness uniformity. And the feeling of slip is inferior.

Claims (3)

At least acyl arginine, diester of dibasic acid and cationic surfactant are blended,
As the acyl arginine, N ^α -monolauroyl arginine is blended,
As the diester of the dibasic acid, diisopropyl adipate, diethyl sebacate or diisopropyl sebacate is blended ,
Amount of acyl arginine is 5 mass% or less than 0.01 mass%, the hair cosmetic amount of a diester of a dibasic acid, characterized in der Rukoto 10 mass% or less than 0.01 wt%. The hair cosmetic according to claim 1 , further comprising an ester of a tetravalent sugar alcohol or a dimer thereof and a fatty acid. The hair cosmetic composition according to claim 1 or 2 , wherein the blending ratio of the acyl arginine and the dibasic acid diester is from 1: 2 to 1:30 in terms of mass ratio.