JP5615510B2 - Hair cosmetic composition - Google Patents

Description

  The present invention relates to a hair cosmetic composition capable of imparting softness to hair at the time of application to hair or at the finish.

  In recent years, along with the diversification of hair design, this has been actively achieved by applying chemical treatments such as hair coloring and permanent wave treatment. The degree is increasing.

  Hair damaged by chemical treatment as described above will feel dry and dry as intercellular lipids flow out of the cuticle and cortex, making the hair itself feel firm when touched. It is known. Moreover, it is also known that it is difficult to make a desired design for the hair that has become hard as described above.

  In response to these circumstances, in order to improve the condition of hair that has become soft and lost its softness, ingredients with conditioning action including oily ingredients such as silicones and esters are blended. Hair cosmetics have been developed.

  For example, among the silicones, dimethiconol is known to have a strong action capable of imparting a smooth feel, luster and unity to the hair, and there is a proposal of a hair cosmetic blended with this (Patent Documents 1 and 2). .

JP 2005-263852 A JP 2008-56604 A

  However, recently, the chemical treatment as described above is often applied to the hair continuously over a long period of time. It was difficult to give sufficient softness.

  This invention is made | formed in view of the said situation, The objective is to provide the hair cosmetic composition which can provide favorable softness even if it is the hair damaged by the chemical treatment.

  The hair cosmetic composition of the present invention that has achieved the above object comprises dimethiconol obtained by emulsion polymerization, and a block type nonionic surfactant obtained by addition polymerization of propylene oxide and ethylene oxide to a higher alcohol. It is characterized by that.

  According to the present invention, it is possible to provide a hair cosmetic composition that can impart good softness even to hair damaged by chemical treatment.

  In the hair cosmetic composition of the present invention, those obtained by emulsion polymerization are used as dimethiconol (a silicone compound in which both ends of dimethyl silicone are blocked with hydroxyl groups). The reason is not clear, but by using dimethiconol obtained by emulsion polymerization, the hair make-up that can make the hair softer at the time of application or after finishing than the softness of healthy hair The composition can be constituted.

  As dimethiconol obtained by emulsion polymerization, an emulsion containing this is commercially available, and these can be used in the hair cosmetic composition of the present invention. Specific examples of commercially available products that can be used in the hair cosmetic composition of the present invention include “XS65-B7991 (trade name)” and “XS65-C1717 (trade name) manufactured by Momentive Performance Materials Japan GK. Or the like.

  The blending amount of the dimethiconol in the hair cosmetic composition is preferably 0.5% by mass or more and more preferably 1% by mass or more from the viewpoint of imparting softness to the applied hair more favorably. . However, if the amount of dimethiconol in the hair cosmetic composition is too large, the applied hair tends to be sticky. Therefore, the blending amount of the dimethiconol in the hair cosmetic composition is preferably 3.5% by mass or less, and more preferably 2.5% by mass or less.

  The block type nonionic surfactant used in the hair cosmetic composition of the present invention is obtained by addition polymerization of propylene oxide and ethylene oxide to a higher alcohol. By using such a block-type nonionic surfactant in combination with the above-mentioned dimethiconol, the hair can be made softer than the softness of healthy hair at the time of application or after finishing after application. A cosmetic composition can be constituted.

  Examples of the higher alcohol used for the formation of the block type nonionic surfactant include alcohols having 12 to 24 carbon atoms such as cetyl alcohol, stearyl alcohol, behenyl alcohol, and 2-decyltetradecyl alcohol. Among these, block-type nonionic surfactants synthesized using 2-decyltetradecyl alcohol are preferred in that they have a stronger effect of imparting softness to the hair during application.

  As said block type nonionic surfactant, the commercial item by Nikko Chemicals can be used, for example. Specifically, polyoxyethylene (1) polyoxypropylene (4) cetyl ether (trade name: NIKKOL PBC-31), polyoxyethylene (20) polyoxypropylene (8) cetyl ether (trade name: NIKKOL PBC-) 44), polyoxyethylene (12) polyoxypropylene (6) decyl tetradecyl ether (trade name: NIKKOL PEN-4612), polyoxyethylene (20) polyoxypropylene (6) decyl tetradecyl ether (trade name: NIKKOL) PEN-4620), polyoxyethylene (30) polyoxypropylene (6) decyl tetradecyl ether (trade name: NIKKOL PEN-4630) and the like (in each of the above compounds, in parentheses after oxyethylene) The number is acid The average number of moles of ethylene fluoride added, and the numerical values in parentheses after oxypropylene mean the average number of moles added of propylene oxide, and the same applies to each compound described later.)

  The blending amount of the block-type nonionic surfactant in the hair cosmetic composition is preferably 0.01% by mass or more from the viewpoint of imparting softness to the applied hair more favorably, 0.1% More preferably, it is at least mass%. However, if the amount of the block-type nonionic surfactant in the hair cosmetic composition is too large, there is a risk that the finished hair will feel firmness. Therefore, the blending amount of the block-type nonionic surfactant in the hair cosmetic composition is preferably 1.5% by mass or less, and more preferably 0.5% by mass or less.

  In the hair cosmetic composition of the present invention, water is mainly used as a medium. The amount of water in the hair cosmetic composition is preferably 50 to 98% by mass.

  The hair cosmetic composition of the present invention preferably contains a polyhydric alcohol. By blending the above-mentioned dimethiconol and polyhydric alcohol in a specific ratio, the effect of imparting softness to the hair of the hair cosmetic composition can be further enhanced. The ratio between the blending amount of polyhydric alcohol and the blending amount of dimethiconol in the hair cosmetic composition is preferably 4: 1 to 1: 2.

  Examples of the polyhydric alcohol include ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, polyglycerin and the like.

  Furthermore, in the hair cosmetic composition of the present invention, in addition to the above-described components, various components used in ordinary cosmetics can be blended within a range that does not impair the effects of the present invention. Examples of such components include surfactants (anionic surfactants, cationic surfactants, nonionic surfactants other than the above-described block type nonionic surfactants, amphoteric surfactants), water-soluble substances, and the like. Functional polymers, alcohols, fats and oils, esters, hydrocarbons, sequestering agents, antioxidants, pH adjusters, and fragrances.

  Examples of the anionic surfactant include fatty acid salts such as coconut oil fatty acid sodium, coconut oil fatty acid triethanolamine, lauric acid triethanolamine and potassium stearate; metal soap such as calcium myristate and aluminum isostearate; polyoxy Alkyl ether carboxylates such as sodium ethylene tridecyl ether acetate and sodium polyoxyethylene lauryl ether acetate; Acyl lactates such as sodium stearoyl lactate, sodium isostearoyl lactate and potassium stearoyl lactate; Sodium coconut oil fatty acid sodium acyl glutamate, sodium lauroyl glutamate N-acyl glutamate such as potassium stearoyl glutamate; sodium lauryl sulfate, triethanol lauryl sulfate Alkyl sulfate salts such as amine, sodium alkyl (12,13) sulfate, ammonium lauryl sulfate; alkyl ether sulfate salts such as sodium polyoxyethylene lauryl sulfate, 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.

  Examples of the cationic surfactant include monoalkyl quaternary ammonium such as lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, cetyl trimethyl ammonium bromide and stearyl trimethyl ammonium bromide. Salts: Dialkyl quaternary ammonium salts such as distearyldimethylammonium chloride, dicocoyldimethylammonium chloride, dicetyldimethylammonium chloride, dioleyldimethylammonium chloride; benzalkonium types such as benzalkonium chloride and stearyldimethylbenzylammonium chloride Quaternary ammonium; cetylpyridinium chloride; and the like.

  Examples of the nonionic surfactant other than the block type nonionic surfactant include polyoxyethylene cetyl ether, polyethylene glycol monolaurate, ethylene glycol monostearate, polyoxyethylene (20) stearic acid. Examples include sorbitan, polyoxyethylene hydrogenated castor oil, polyoxyethylene (3) sorbitol isostearate, glyceryl monostearate, sorbitan monostearate, poly (2-10) glyceryl monostearate, sucrose fatty acid ester, and the like. It is done. Examples of the amphoteric surfactant include 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, sodium laurylaminopropionate, coconut oil alkylbetaine, laurylhydroxysulfobetaine and the like.

  Examples of water-soluble polymers include cationized cellulose, sodium polyacrylate, cellulose ether, sodium alginate, carboxyvinyl polymer, hydroxyethyl cellulose, polyvinylpyrrolidone, carrageenan, guar gum, cationized guar gum, hyaluronic acid, chitosan, polyethylene glycol, and the like. Is mentioned. Examples of alcohols include lower alcohols such as ethyl alcohol, isopropyl alcohol, butyl alcohol, and benzyl alcohol; higher alcohols such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, and behenyl alcohol.

  Examples of the fats and oils include shea fat, wheat germ oil, rice bran oil, macadamia nut oil, meadow home oil, and egg yolk oil. Examples of the ester include isopropyl myristate, myristyl myristate, stearyl stearate, isostearyl laurate, octyldodecyl oleate, hexyl 2-ethylhexanoate, di-2-ethylhexyl succinate, dioctyl succinate, and phytosteryl isostearate. Is mentioned.

  Examples of the hydrocarbon include candelilla wax, microcrystalline wax, jojoba oil, beeswax, carnauba wax, light isoparaffin, light liquid isoparaffin, squalane, ceresin, paraffin, liquid paraffin, liquid isoparaffin, petrolatum and the like. Examples of the fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, isostearic acid, 12-hydroxystearic acid, undecylenic acid, and the like.

  Examples of the sequestering agent include edetic acid, edetate disodium, diethylenetriaminepentaacetic acid and the like. Examples of the antioxidant include d1-α-tocopherol, dibutylhydroxytoluene, erythorbic acid, anhydrous sodium sulfite and the like. Examples of the pH adjuster include acids such as citric acid, phosphoric acid, malic acid, tartaric acid and lactic acid; alkaline agents such as ammonia, sodium hydroxide, triethanolamine and arginine.

  Although there is no restriction | limiting in particular about the dosage form of the hair cosmetic composition of this invention, It is preferable that it is a dosage form which is easy to make it adhere to the hair surface uniformly. Specifically, since the hair cosmetic composition of the present invention is preferably used in the form of a spray or foam after being enclosed in an aerosol or trigger type container, it may be in the form of a liquid or low viscosity gel. Recommended.

  The hair cosmetic composition of the present invention is usually used in such a manner that it is not washed off after being applied to the hair. For example, hair after applying a hair cosmetic composition by taking an appropriate amount of foam, liquid or gel hair cosmetic composition and applying it to the hair, or spraying and applying an appropriate amount to the hair as a spray Finish without washing off.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In addition, in the following Tables 1 to 4, the blending amounts of the respective components are indicated by% so that the total amount of the hair cosmetic composition is 100%. -In Table 4, the display of% is abbreviate | omitted and it displays only with the numerical value showing a compounding quantity.

Examples 1-10 and Comparative Examples 1-7
The hair cosmetic compositions of Examples 1 to 10 and Comparative Examples 1 to 7 were prepared by the following method with the compositions shown in Tables 1 to 4. First, the components (1) to (6) shown in Tables 1 to 4 are sequentially added to 80% by mass of the total purified water to be used with stirring. Here, the components (7) and (8) are added. A mixture of the components was added [however, in the hair cosmetic composition of Comparative Example 1 in which the component (8) was not used, the component (7) was used alone]. Then, the remaining purified water was added to obtain a hair cosmetic composition.

In addition, the raw material used for preparation of the hair cosmetic composition of Examples 1-10 and Comparative Examples 1-7 is as follows.
-Dimethiconol emulsion: “XS65-B7991 (trade name)” manufactured by Momentive Performance Materials Japan GK. The viscosity is 1 million mPa · s, and the concentration of dimethiconol is 50% by mass.
Lactic acid aqueous solution (0.1% by mass): “Musashino Lactic Acid 90 (trade name)” manufactured by Musashino Chemical Laboratory.
・ Phenoxyethanol: “High Solve EPH (trade name)” manufactured by Toho Chemical Industry Co., Ltd.
Polyoxyethylene (40) hydrogenated castor oil: “NIKKOL HCO-40 (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (50) hydrogenated castor oil: “NIKKOL HCO-50 (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (60) hydrogenated castor oil: “NIKKOL PBC-60 (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (10) oleyl ether: “NIKKOL BO-10V (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (20) oleyl ether: “NIKKOL BO-20V (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (10) sodium lauryl ether phosphate: “NIKKOL DLP-10 (trade name)” manufactured by Nikko Chemicals.
Polyoxyethylene (20) sorbitan monolaurate: “Reodol TW-L120 (trade name)” manufactured by Kao Corporation.
-Polyoxyethylene (20) polyoxypropylene (8) cetyl ether; "NIKKOL PBC-44 (trade name)" manufactured by Nikko Chemicals.
-Polyoxyethylene (30) polyoxypropylene (6) decyl tetradecyl ether; "NIKKOL PEN-4630 (trade name)" manufactured by Nikko Chemicals.

  About the hair cosmetic composition of Examples 1-10 and Comparative Examples 1-7, the softness-imparting effect to hair was evaluated with the following method.

(Production of evaluation tress)
A set of two tresses of healthy hair (length 20 cm, mass 30 g) was prepared. Then, a mixture of 50 g of “Oldive C13-CL (trade name)” manufactured by Milbon and 100 g of “Oldive oxydane 6% (trade name)” manufactured by Milbon is applied to one of the tresses, and a heater is used. The hair surface was heated to 30 to 50 ° C. for 30 minutes, and then a series of treatments of washing with a normal shampoo and drying were repeated three times. Thereafter, the roots of two tresses (the tress that was damaged by the above treatment and the untreated tress) were connected with cotton yarn and divided into two forks to produce an evaluation tress.

For the evaluation of the hair cosmetic compositions of Examples 1 to 10 and Comparative Examples 1 to 7, the same evaluation tres (the above-mentioned evaluation tres) was used. The hair cosmetic composition was filled in a spray-type container, and an appropriate amount was sprayed onto the tress that gave damage to the tress for evaluation. Then, for each evaluation tress, five expert evaluators compared the softness of the tress that was damaged and applied the hair cosmetic composition with the softness of the untreated tress, and scored according to the following criteria: It was. In addition, whenever the evaluation tres was evaluated, each hair cosmetic composition was washed with a polyoxyethylene (2) sodium lauryl sulfate aqueous solution (5% by mass concentration) and dried.
It feels much softer than untreated tres ... 5 points.
I feel a little softer than the untreated tres.
The softness is the same as the untreated tres.
It feels a little hard compared to untreated tres.
I feel quite hard compared to the untreated tres.

The scores given by the five evaluators were totaled for each of the Examples and Comparative Examples, and the effects of each hair cosmetic composition were evaluated based on the following criteria.
21 points or more ◎◎ (sufficient softness has come out).
18 to 20 points (circle) (softness has come out).
13-17 points ・ ・ ・ △ (softness is equivalent to untreated tres).
12 points or less: × (no softness).

  The evaluation results are shown in Tables 5 and 6. In Tables 5 and 6, in the remarks section, the contents of each hair (evaluation tress) when the expert evaluator evaluates that it is characteristic are also shown. .

  As shown in Table 5, hair cosmetic compositions of Examples 1 to 10 in which dimethiconol obtained by emulsion polymerization and a block type nonionic surfactant obtained by addition polymerization of propylene oxide and ethylene oxide in higher alcohol were blended. Has improved the softness of the damaged tress. On the other hand, as shown in Table 6, the hair cosmetic compositions of Comparative Examples 1 to 7 in which another nonionic surfactant was blended instead of the block type nonionic surfactant gave damage. The effect of imparting softness to the tress is inferior.

Claims (4)

Dimethiconol obtained by emulsion polymerization, a block type nonionic surfactant obtained by addition polymerization of propylene oxide and ethylene oxide to a higher alcohol having 12 to 24 carbon atoms, and water are blended ,
A hair cosmetic composition comprising the higher alcohol synthesized by using 2-decyltetradecyl alcohol as the block-type nonionic surfactant .   The hair cosmetic composition according to claim 1, wherein the water content is 50 to 98 mass%.   The hair cosmetic composition according to claim 1 or 2, wherein an emulsion containing said dimethiconol is used. The hair cosmetic composition according to any one of claims 1 to 3 , wherein a blending amount of the dimethiconol is 0.5 to 3.5 mass%.