JP2579516B2 - Hair cosmetics - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hair cosmetic which imparts excellent gloss to hair, imparts a smooth feel, and has good set holding power.

[Prior art] Conventionally, oil components such as silicone oil, ester oil, and hydrocarbon oil have been used in hair cosmetics by solubilizing, emulsifying, and dissolving them for the purpose of imparting gloss and smoothness to hair. In particular, silicone oils have been widely used in recent years because they have low surface tension, are excellent in conformity to hair, and have good gloss. However, oils represented by silicone oils have the disadvantage that they have a limited oil content, and when used in large quantities or when used by consumers for a long time, the feeling of squeaking of the hair increases and the hair becomes greasy. In addition, cationic surfactants are often used for the purpose of imparting smoothness, but they do not impart desirable gloss, and have a drawback that if they are blended in a large amount, safety is not preferred.

In addition, high molecular compounds such as polyvinylpyrrolidone-based polymers, acidic polyvinyl ether-based polymers, acidic acrylic-based polymers or cationic polymers, etc., are compounded, and these have excellent fixing and setting power of hair, but have gloss and smoothness. Was not satisfactory. In addition, there is a disadvantage that the hair is hardened to give stiffness.

[Problems to be Solved by the Invention] In view of such circumstances, the inventors of the present invention give excellent gloss to hair, give a smooth feel, have no oiliness on the hair, and are easy to apply to hair. As a result of intensive research to obtain a hair cosmetic that dries quickly after application and has an appropriate setting power, it has been found that adding a silicone polymer and a cationic surfactant to a high molecular weight silicone is extremely effective. They have found and completed the present invention.

[Means for Solving the Problems] That is, the present invention relates to a method for preparing a silicone polymer represented by the following general formula [II] and one or more high molecular weight silicones represented by the following general formula [I]. An object of the present invention is to provide a hair cosmetic comprising one or more ionic surfactants.

(R ₁ represents a methyl group or a part thereof represents a phenyl group, R ₂ represents a methyl group or a hydroxyl group, and n represents an integer of 3,000 to 20,000.) (Wherein, R represents hydrogen or a trimethylsilyl group, R ₃ represents a hydroxyl group or a methyl group, R ₄ represents an alkylene group having 1 to 6 carbon atoms, and R ₅ represents an alkylene group having 1 to 4 carbon atoms. Represents a group, x represents a number of 4 to 500, and y represents a number of 1 to 15.) Hereinafter, the configuration of the present invention will be described.

The high molecular weight silicone used in the present invention is represented by the above general formula [I], and the value of n in the formula is from 3,000 to 2
0,000 and exhibits soft rubber-like properties at room temperature. Specific examples include dimethylpolysiloxane, methylphenylpolysiloxane, dimethylpolysiloxane having a terminal hydroxyl group, and methylphenylpolysiloxane having a terminal hydroxyl group.

The compounding amount of the high molecular weight silicone used in the present invention is
It is 0.1 to 25% by weight in the hair cosmetic, and if it is less than 0.1% by weight, there is no effect, and if it exceeds 25% by weight, the viscosity becomes 30,000 cps or more, making it difficult to apply to hair.

The silicone polymer used in the present invention is a compound represented by the above general formula [II], and among these, amodimethicone (Amodimethicone) having a CTFA name (RD No. 977069-10-5) represented by the following general formula: Is particularly preferred.

As the cationic surfactant used in the present invention, a quaternary ammonium salt type cationic surfactant represented by the following general formula is particularly preferred.

[Wherein, R ₈ and R ₉ represent a methyl group or an ethyl group or a polyoxyethylene group; (i) R ₆ and R ₇ represent an alkyl group or an alkenyl group having 8 to 18 carbon atoms, or ii) R ₆ represents an alkyl group or an alkenyl group having 12 to 22 carbon atoms, R ₇ represents a methyl group, an ethyl group, a polyoxyethylene group or a benzyl group, and in both (i) and (ii), X represents a halogen Represents an atom or a methylsulfate or ethylsulfate residue. When the quaternary ammonium salt type cationic surfactant is specifically exemplified, examples of (i) include distearyl dimethyl ammonium chloride, dicocoyl dimethyl ammonium chloride and the like. Examples of (ii) include stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, octyldihydroxyethylmethylammonium chloride and the like.

One or two or more cationic surfactants used in the present invention are appropriately selected and blended.

The present invention may use a composition comprising a silicone polymer and a cationic surfactant. That is, Dow-Corning Cationic Emulsion, a commercial product containing amodimethicone and tallow trimethylammonium chloride
929 and Toray Silicone SM8702, a commercial product containing amodimethicone and stearyltrimethylammonium chloride and dicocoyldimethylammonium chloride.
C may be used.

The blending amount of the silicone polymer used in the present invention is 0.05 to 40% by weight based on the total amount of the hair cosmetic, but in consideration of the modification and film properties of the high molecular weight silicone, 10 to 80% by weight based on the high molecular weight silicone. % Is preferred.

The content of the cationic surfactant used in the present invention,
It is preferably 0.01 to 5% by weight, more preferably 0.05 to 5% by weight.
2% by weight. When the content is less than 0.01% by weight, the smoothness and flexibility of the hair are reduced, and when it exceeds 5% by weight, the smoothness and flexibility of the hair reach the upper limit, which is not economical.

When blending the high molecular weight silicone of the present invention, it is used by dissolving in a volatile oil such as a low boiling chain silicone oil, a low boiling cyclic silicone oil, a low boiling isoparaffin hydrocarbon, or a fluorochloro-substituted hydrocarbon. Is preferred.

The low boiling chain silicone is represented by the following general formula, and specific examples thereof include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and hexadecamethylheptasiloxane.

(In the formula, n represents an integer of 0 to 5.) The cyclic silicone is represented by the following general formula, and specific examples include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and tetradecamethylcycloheptasiloxane. And so on.

(In the formula, n represents an integer of 3 to 7.) Examples of the low-boiling isoparaffin-based hydrocarbon include an isoparaffin-based hydrocarbon having a boiling point in the range of 60 to 260 ° C at normal pressure. A, C, D, E, G, H, K, L, M, Shell, Solsol (registered trademark) 71 manufactured by Shell, Salt manufactured by Phillip Roll (registered trademark) 100 or 130 and 220. Examples of fluorochloro-substituted hydrocarbons include trichlorotrifluoroethane and tetrachlorodifluoroethane.

Any one or more of the above-mentioned low-boiling oils can be used.
~ 50 times (weight) is preferred.

Further, a lower alcohol such as ethanol or isopropyl alcohol may be added in addition to the above components.

The dosage form of the present invention is arbitrary, and may be any of a solubilizing system, an emulsifying system, a powder dispersion system, an oil-water two-layer system, an oil-water-powder three-layer system, and the like.

In the case of an emulsion system, it is common to emulsify an oil phase containing a high-molecular-weight silicone with a nonionic surfactant, a cationic surfactant, an anionic surfactant or a mixture thereof. A method is preferred in which a mixture of a surfactant and a water-soluble polyhydric alcohol is prepared and then mixed with an oil phase to obtain an emulsified composition. As polyhydric alcohols, propylene glycol, 1,3-butanediol, dipropylene glycol, glycerin, diglycerin, polyglycerin such as triglycerin, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, sorbitan, glucose,
Sorbitol, maltitol, sucrose, raffinose, trehalose, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside and the like. When preparing the emulsion composition, one or more of these are used in combination. As the oil constituting the oil phase, the following oils can be used in combination with the high molecular weight silicone. That is, olive oil, palm oil, safflower oil, castor oil, oils such as cottonseed oil, lanolin, jojoba oil, waxes such as carnauba wax, liquid paraffin, squalane, petrolatum, hydrocarbon oils such as volatile isoparaffin, fatty acids, Oils such as alcohols, ester oils such as cetyl octanoate and isopropyl myristate, silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, and silicone resins.

Generally, the amount of the above components is preferably 0.5 to 10% by weight of the total amount of the hair cosmetic, and 20 to 80% by weight of the oil phase containing high molecular weight silicone. In the case of a method in which a mixture with a polyhydric alcohol is prepared and mixed with an oil phase to obtain an emulsified composition, the surfactant is 1
20% by weight, oil phase containing high molecular weight silicone 10-70% by weight, water-soluble polyhydric alcohol 5-30% by weight of the total amount of cosmetics, 50-99% by weight of surfactant Is preferred.

To the hair cosmetic of the present invention, in addition to the above-described components, according to the purpose, in a quantitative and qualitative range that does not impair the effects of the present invention, preservatives, vitamins, drugs such as hormones, and fragrances are added. Is also good.

[Effects of the Invention] The hair cosmetic composition of the present invention is excellent in hair fixability, improves combability, gives gloss to hair, and is excellent in usability.

[Examples] Next, the present invention will be described in more detail with reference to examples.
The present invention is not limited by these. The compounding amount is% by weight.

Prior to the examples, an effect test and an evaluation method will be described.

(1) Hair fixing power A 2 g sample was applied to a hair strand (4 g), the shape was adjusted with a comb, and the hair fixing power was evaluated after drying for 1 hour.

○: Hair fixing power is excellent △: Hair fixing power is slightly inferior ×: Hair fixing power is inferior (2) Ease of combing Apply 2g of sample to hair strand (4g), fix with comb, and dry for 1 hour Ease of combing was evaluated.

：: Smooth △: Slightly scratched ×: Slightly scratched (3) Gloss of hair A 3 g sample was applied separately to the left and right sides of the hair, and after shaping the shape with a comb, sensory evaluation was performed.

：: glossy △: inferior glossy ×: no glossiness (4) Stickiness of Hand A sample of 1 g was taken on the palm of the hand, and the stickiness of the hand was rubbed with the hand for 30 seconds.

：: no stickiness at all △: slightly sticky ×: considerable stickiness Example 1 Hair Mousse  (1) Octamethylcyclotetrasiloxane 30.0 (2) Dimethylpolysiloxane (R₁And R_TwoIs a methyl group, n = 30,000) 3.0 (3) Propylene glycol 6.0 (4) Polyoxyethylene (addition of 80 mol) Hydrogenated castor oil ester 3.0 (5) Amodimethicone^* 2.0 (6) Stearyl trimethyl ammonium chloride^* 0.1 (7) Dicocoyl dimethyl ammonium chloride^* 0.13 (8) Polyoxyethylene (10 mole addition) Nonylphenol^* 0.03 (9) Ethanol 5.0 (10) Deionized water 40.74 (11) Dimethyl ether 4.0 (12) Dichlorodifluoromethane 6.0 *: These components are from Toray Silicone SM8702C
Le Silicone Co., Ltd.).

Production method (1) Add the lysate of (2) to the solution of (3) and (4),
Emulsify. Next, the above emulsion is added to the solutions (5) to (10) and mixed. Next, after filling this undiluted solution in a can, (11)
The propellant gas of (12) was charged to obtain a foam aerosol.

Comparative Example 1 Hair mousse  (1) Octamethylcyclotetrasiloxane 30.0 (2) Propylene glycol 6.0 (3) Polyoxyethylene (addition of 80 mol) Hydrogenated castor oil ester 3.0 (4) Amodimethicone^* 2.0 (5) Stearyl trimethyl ammonium chloride^* 0.1 (6) Dicocoyl dimethyl ammonium chloride^* 0.13 (7) Polyoxyethylene (10 mole addition) Nonylphenol^* 0.03 (8) Ethanol 5.0 (9) Deionized water 43.74 (10) Dimethyl ether 4.0 (11) Dichlorodifluoromethane 6.0 *
Le Silicone Co., Ltd.).

Production method (1) is added to the solutions (2) and (3) and emulsified. Next, the above-mentioned emulsion is added to and mixed with the solutions (4) to (9).
Next, after filling this undiluted solution into a can, the propellant gas of (10) and (11) was filled to obtain a foam aerosol.

The properties and effects of the product of the present invention obtained in Example 1 and the conventional product obtained in Comparative Example 1 are shown in Table 1.

As is clear from Table 1, the hair cosmetic composition of the present invention is excellent in hair fixing power, combability, hair shine, and no stickiness of hands.

Example 2 Heaburo (1) decamethylcyclopentasiloxane 10.0 (2) Dimethyl polysiloxane (R ₁ is methyl, R ₂ is a hydroxyl group, n = 20,000) 1.0 (3) Amodimethicone ^* 1.0 (4) Stearyl trimethyl ammonium chloride ^* 0.05 (5) Dicocoyl dimethyl ammonium chloride ^* 0.075 (6) Polyoxyethylene (10 mol addition) Nonylphenol ^* 0.015 (7) Dipropylene glycol 2.0 (8) Polyoxyethylene (40 mol addition) Hardened castor oil ester 2.0 ( 9) Amphoteric resin represented by the following formula 1.0 (R ₁₀ , R ₁₁ , R ₁₂ , and R ₁₄ are methyl groups, R ₁₃ and R ₁₆ are ethylene groups, R ₁₅ is a stearyl group, A is an oxygen atom, n: m = 80: 20, and the molecular weight is about 100,000.) 10) Ethanol 10.0 (11) Appropriate amount of perfume (12) Ion exchange water balance *: These components are contained in Toray Silicone SM8702C (Toray Silicone Co., Ltd.).

Production method (1) Add the lysate of (2) to the solution of (3) and (4),
Emulsify. Next, the above-mentioned emulsion is added to the solutions (5) to (12) and mixed. Put it in a dispenser and apply it to the hair in a mist.

Example 3 Hair Cream (1) Decamethylcyclopentasiloxane 10.0 (2) Dimethyl polysiloxane (R ₁ and R ₂ are a methyl group, n = 5,000) 3.0 (3) dimethylsiloxane 20 cps 3.0 (4) tri-2-ethyl Glycerin hexanoate 7.0 (5) Vaseline 4.0 (6) Stearyl alcohol 3.0 (7) Sorbitan monooleate 2.0 (8) Polyoxyethylene (40 mole addition) Hydrogenated castor oil ester 2.0 (9) Glycerin 6.0 (10) Amodimethicone ^* 2.0 (11) Stearyltrimethylammonium chloride ^* 0.1 (12) Dicocoyldimethylammonium chloride ^* 0.15 (13) Polyoxyethylene (10 mole addition) Nonylphenol ^* 0.13 (14) Preservative appropriate amount (15) Ion exchange water balance *: These Ingredients are contained in Toray Silicone SM8702C (Toray Silicone Co., Ltd.)

Production method (1) to (8) are stirred and dissolved at 70 ° C., and (9) to (15)
Was dissolved therein and emulsified by adding it to the inside to obtain a hair cream.

Claims (1)

(57) [Claims] 1. One or more of high molecular weight silicones represented by the following general formula [I], a silicone polymer represented by the following general formula [II], and one or more of cationic surfactants And a hair cosmetic comprising: (R ₁ represents a methyl group or a part thereof represents a phenyl group, R ₂ represents a methyl group or a hydroxyl group, and n represents an integer of 3,000 to 20,000.) (In the formula, R represents hydrogen or a trimethylsilyl group, R ₃ represents a hydroxyl group or a methyl group, R ₄ represents an alkylene group having 1 to 6 carbon atoms, and R ₅ represents an alkylene group having 1 to 4 carbon atoms. Represents a group, x represents a number of 4 to 500, and y represents a number of 1 to 15.)