JPH0764706B2 - Hair cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a hair cosmetic composition which imparts excellent gloss and a smooth feel to hair and has good set-holding power.

[Conventional technology]

Conventionally, hair cosmetics have been used by dissolving, emulsifying or dissolving oil components such as silicone oil, ester oil and hydrocarbon oil for the purpose of imparting gloss and smoothness to hair. In particular, silicone oil has been widely diversified in recent years because of its low surface tension, excellent hair familiarity, and good gloss. However, there is a limit to the oil content, and when used in large amounts or used by consumers for a long time, there is a drawback that the hair becomes greasy. Further, although a cation activator is often used for the purpose of imparting smoothness, it has a drawback that it does not give a desired luster and that it is not preferable in safety when compounded in a large amount.

Further, for the purpose of hair setting, a high molecular compound; a polypinylpyrrolidone type polymer, an acidic polyvinyl ether type polymer, an acidic acrylic type polymer or a cationic polymer is used. Although these are excellent in fixing or setting the hair, they do not satisfy gloss and smoothness.

[Problems to be solved by the invention]

The inventors of the present invention have been keen to develop such drawbacks, to impart excellent luster to hair, to impart a smooth feel, to the hair without greasiness, and to obtain a hair cosmetic having an appropriate setting force. As a result of research, it was found that the above object can be achieved by using a specific polymer silicone and an amphoteric polymer in combination, and the present invention has been completed based on this finding.

[Means for solving problems]

That is, the present invention is a general formula, (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 3,000 to 20,000.
Represents the integer. ) A hair cosmetic composition comprising one or more high molecular weight silicones represented by the following formula and one or more amphoteric polymers.

The high molecular weight silicone used in the present invention is a high molecular weight silicone represented by the above general formula, and the value of n in the formula is 3,000 to 20,
It is 000. In terms of molecular weight, it is about 370,000 to 1,500,000, and the property is a soft rubber at room temperature.

Specific chemical structures include dimethyl polysiloxane, methylphenyl polysiloxane, terminal hydroxyl group-containing dimethyl polysiloxane, terminal hydroxyl group-containing methylphenyl polysiloxane, and the like. Examples of the high molecular weight silicone of the present invention include those commercially available under the trade names SE30 and SE76 manufactured by General Electric Company.

Conventionally, dimethylpolysiloxane having a degree of polymerization in the range of 3 to 650 has been used as a cosmetic ingredient, but there is no example in which a high molecular weight silicone as in the present invention is blended in a cosmetic.

The blending amount of high-molecular-weight silicone is 0.1 in the total amount of hair cosmetics.
-50% by weight, preferably 1-30% by weight. 0.1%
If it is less than 50%, a sufficient effect cannot be obtained, and if it exceeds 50%, it becomes difficult to dissolve.

When the high molecular weight silicone of the present invention is added to a hair cosmetic composition, it is preferably dissolved in a volatile oil and then added. Of course, the hair cosmetics may be separately blended and dissolved in the system.

Examples of the volatile oil (low-boiling oil) include low-boiling chain silicone, cyclic silicone, low-boiling isoparaffin hydrocarbon and the like.

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 thereof include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and tetradecamethylcyclopentasiloxane. And so on.

(In the formula, n represents an integer of 3 to 7.) Examples of the low-boiling point isoparaffinic hydrocarbon include isoparaffinic hydrocarbons having a boiling point in the range of 60 to 260 ° C. under normal pressure. Isopar (registered trademark) A, C, D, E, G, H, K, L, M, Shelsol (registered trademark) 71 manufactured by Shell Co., and salt manufactured by Philip Co. Rolls (registered trademark) 100, 130, 22-, and the like can be mentioned.

The low boiling point oil can use any one kind or two or more kinds, and the total blending amount is 1 to the high molecular weight silicone.
The amount is preferably 50 times (weight), and is preferably 10 to 80% by weight based on the total amount of the hair cosmetic composition.

The amphoteric resin used in the present invention is soluble in the product or
It is a dispersible polymer.

A preferred resin is a resin represented by the following general formula: n: m = 9
0: 10-70: are particularly preferable alkyl group saturated or unsaturated R ₈ have 12 to 24 carbon atoms in 30, the amount is 0.1 to 10 wt%, preferably 0.5 to 2 wt% Is.

(N: m = 90: 10 to 50:50, molecular weight is 50,00
It ranges from 0 to 500,000. R ₃ and R ₇ are hydrogen atoms or methyl groups. R ₄ and R ₅ are each an alkyl group having 1 to 4 carbon atoms. R ₆ is an alkylene group having 1 to 4 carbon atoms. R ₈ is a saturated or unsaturated alkyl group having 1 to 24 carbon atoms. A is an oxygen atom or an NH group, R
₉ is an alkylene group having 1 to 4 carbon atoms) The dosage form of the present invention is optional, and it is soluble system, emulsion system, powder dispersion system, oil-water two-phase system, oil-water-powder. Any of the above three-layer system may be used.

In the case of an emulsified system, it is common to use an oil layer containing a high molecular weight silicone by emulsifying it with a nonionic surfactant, a cationic surfactant, an anionic surfactant or a mixture thereof. A preferred method is to prepare a mixture of an active agent and a water-soluble polyhydric alcohol, and then mix it with an oil phase to obtain an emulsion composition.

The water-soluble polyhydric alcohol is a polyhydric alcohol having two or more hydroxyl groups in the molecule, and specific examples thereof include ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, difluoropyrene. Glycol, glycerin, polyglyxane (diglycerin, triglycerin, tetraglycerin, decaglycerin, etc.), glucose, maltose, altitol, sucrose, fructose, xylitol, solibitol, maltotriose, threitol, erythritol, starch-degrading sugar reducing alcohol, etc. There is one kind or two or more kinds selected from these and used.

Examples of the oil constituting the oil phase of the emulsified cosmetic include the following oils in addition to the high molecular weight silicone according to the present invention.

That is, oils and fats such as orepu oil, coconut oil, safflower oil, castor oil, cottonseed oil, waxes such as lanolin, jojoba oil and carnauba wax, liquid paraffin, squalane, petrolatum, hydrocarbon oils such as volatile isoparaffin, fatty acids , Alcohols, ester oils such as cetyl octanoate and isopropyl myristate, silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, and silicone resins, which are commonly used in cosmetics.

The general blending amount of the above components is 0.5 to 10% by weight of the surfactant in the total amount of the hair cosmetic composition and 10 to 80% by weight of the oil phase containing the high molecular weight silicone. In the case of a method of preparing a mixture with a polyhydric alcohol and mixing with an oil phase to obtain an emulsion composition, the surfactant is 1 to 20% by weight, the oil phase containing a high molecular weight silicone is 10 to 70% by weight,
The amount of the water-soluble polyhydric alcohol is preferably 5 to 30% by weight based on the total amount of the cosmetic, and about 50 to 99% by weight based on the surfactant.

The emulsified makeup amount may be either a water-in-oil type or an oil-in-water type, but it is preferably prepared so as not to lose the water repellency which is the effect of the present invention.

In addition to the above essential components, the hair cosmetic composition of the present invention,
Depending on the purpose, ultraviolet absorbers, antioxidants, preservatives, vitamins, hormones and other agents, and fragrances may be blended within a quantitative and qualitative range that does not impair the effects of the present invention.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. The present invention is not limited to this. All compounding amounts are weight%.

Example 1 Hair blow (1) Decamethylcyclopentasiloxane 15% (2) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups n = 3,000) 3% (3) 1,3 Butylene glycol 2% (4) Polyethylene ( 60) Hardened castor oil ester 2% (5) Amphoteric resin (R ₃ , R ₄ , R ₅ and R ₇ are methyl groups R
₆ is an ethylene group, R ₈ is a butyl group, R ₉ is a methylene group A is an oxygen atom) 1% (6) Ethanol 15% (7) Ion-exchanged water 62% (8) Perfume Suitable amount (1) ( 2) is dissolved, added to the mixture of (3) and (4), emulsified, and mixed with (5), (6), (7) and (8).

Example 2 Hair Mousse (registered trademark) (1) Octamethylcyclotetrasiloxane 10% (2) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups n = 10,000) 2% (3) Glycerin 1% (4) Polyethylene ( 120) Hardened castor oil ester 2
% (5) Amphoteric resin (R ₃ , R ₄ , R ₅ and R ₇ are methyl groups R
₆ is an ethylene group, R ₈ is a stearyl group, R ₉ is a methylene group A is an oxygen atom) 3% (6) Ethanol 10% (7) Ion-exchanged water 65% (8) n-Butane 7% (9 ) Fragrance A suitable amount of (2) is dissolved in (1), added to the mixture of (3) and (4), emulsified, and mixed with (5), (6), (7) and (9). The solution is placed in an aerosol container, a valve is attached, and then (8) is filled.

Example 3 Hair Cream (1) Decamethylcyclohexasiloxane 25% (2) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups n = 10,000) 6% (3) Glycerin 3% (4) Polyethylene (120) Cured Castor oil ester 3% (5) Amphoteric resin (R ₃ , R ₄ , R ₅ and R ₇ are methyl groups R
₆ is ethylene group, R ₈ is ethyl group, R ₉ is ethylene group A is oxygen atom) 3% (6) Ethanol 10% (7) Deionized water 57% (8) Polyvinyl alcohol 1% (9) Fragrance An appropriate amount of (2) is dissolved in (1), added to the mixture of (3) and (4) and emulsified, and then (5), (6), (7), (8),
Mix with (9).

Example 4 Hair Oil (1) Decamethylcyclopentasiloxane 57.0% (2) Dimethylpolysiloxane (5cps) 20.0% (3) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups n = 7,000) 10.0% (4) Amphoteric Resin (R ₃ , R ₄ , R ₅ and R ₇ are methyl groups R
₆ is an ethylene group, R ₈ is a stearyl group, R ₉ is a methylene group A is an oxygen atom) 3% (5) Ethanol 10% (6) Fragrance Suitable amount (1)-(6) at 70-80 ° C Stir to dissolve and mix. viscosity
A viscous and transparent liquid hair oil of 500 cps was obtained.

Example 5 Hair Mousse (registered trademark) (1) Octamethylcyclotetrasiloxane 10.0% (2) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups n = 7,000) 5.0 (3) Glycerin 10.0 (4) Polyethylene (60) Hydrogenated castor oil ester 2.0
(5) Amphoteric resin (R ₃ , R ₄ , R ₅ , and R ₇ are methyl groups, R ₆ is ethylene group, R ₈ is stearyl group, R ₉ is methylene group, A is oxygen atom) 3.0 (6) Ethanol 10.0 (7) Ion-exchanged water 53.0 (8) n-butane 7.0 (9) Perfume Dissolve (2) in an appropriate amount (1), add to the mixture of (3) and (4) and emulsify. Then, the above emulsion is added to and mixed with the mixed solution of (5), (6), (7) and (9). Then, this solution is filled in an aerosol container, and after attaching a valve, the injection gas of (8) is filled.

Comparative Example 1 60 parts of 95% ethanol, sufuryl alcohol PO40 mol EO
10 parts of a 5 mol adduct and 5 parts of a 50 mol adduct of trimethylolpropane PO were dissolved and 25 parts of ion-exchanged water was added to obtain a transparent liquid hair styling product.

Comparative Example 2 (1) (Vinylpyrrolidone / vinyl acetate) copolymer 2.
0% (2) Propylene glycol 2.0% (3) Ethanol 40.0% (4) Ion-exchanged water 56.0% After dissolving (1) in (3), together with (2), (4)
In addition, a transparent liquid hair styling product was obtained.

Comparative Example 3 Hair Mousse (registered trademark) (1) Octamethylcyclotetrasiloxane 10% (2) Dimethylpolysiloxane (R ₁ and R ₂ are methyl groups, n
= 10,000) 1% (3) Glycerin 1% (4) Polyethylene (120) Hardened castor oil ester 2% (5) Amphoteric polymer (octyl acrylamide / acrylate / butylaminoethyl methacrylate copolymer, National Starch and Chemical Co.) Product name: AMPHOMER2
8-4910) 3% (6) Ethanol 10% (7) Ion-exchanged water 65% (8) n-Butane 7% (9) Fragrance Dissolve (2) in an appropriate amount (1), and (3), (4) (8) is added after emulsifying in addition to the mixture of (4), mixing with (5), (6), (7), and (9) into an aerosol container and attaching a valve.

As described above, the products of the present invention obtained in Examples 1 to 4 and Comparative Examples 1 to 3
Table 1 shows the properties and work hardening of the conventional products obtained in 1.

The test methods and evaluation methods in Table 1 are as follows.

(I) Stickiness of hand A sample of 1 g was placed on the palm of the hand and rubbed by hand for 30 seconds, and then the stickiness of the hand was sensory evaluated.

○: No stickiness at all △: Slightly sticky ×: Significantly sticky (II) Hair fixative strength Apply 2g of sample to hair strands (4g), shape with a comb, and fix for 1 hour after fixing hair. Was evaluated.

◯: Excellent hair fixability ×: Poor hair fixability (III) Ease of combing 2g of the sample was applied to hair strands (4g), the shape was adjusted with a comb, and combability was evaluated after drying for 1 hour. .

◯: Smooth Δ: Slightly scratched ×: Scratched (IV) Luster of hair 3 g of the sample was applied separately to the left and right of the hair, and the shape was adjusted with a comb, followed by sensory evaluation.

◯: Glossy Δ: Glossy inferior ×: No gloss [Effect of the invention] The hair cosmetic composition of the present invention does not have stickiness on the hands, is excellent in hair styling and fixing power, improves combability, and improves hair. It is an excellent product that gives gloss.

Claims (13)

[Claims] 1. General formula (1): (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 3,000 to 20,000.
Represents the integer. ) One or more high molecular weight silicones represented by the following general formula (2): (N: m = 90: 10 to 50:50, molecular weight is 50,00
It ranges from 0 to 500,000. R ₃ and R ₇ are hydrogen atoms or methyl groups, R ₄ and R ₅ are alkyl groups each having 1 to 4 carbon atoms, R ₆ is an alkylene group having 1 to 4 carbon atoms, and R ₈ is 1 A saturated or unsaturated alkyl group having from 24 carbon atoms, A is an oxygen atom or an NH group, and R ₉ is an alkylene group having from 1 to 4 carbon atoms). Hair cosmetics characterized by containing at least one kind. 2. The hair cosmetic composition according to claim 1, wherein the hair cosmetic composition contains a low boiling point oil in an amount necessary to dissolve the high molecular weight silicone. 3. The hair cosmetic composition according to claim 2, wherein the low boiling point oil is a low boiling point silicone. 4. The hair cosmetic composition according to claim 3, wherein the low boiling point silicone is a cyclic silicone. 5. The hair cosmetic composition according to claim 4, wherein the cyclic silicone is octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane or dodecamethylcyclohexasiloxane. 6. The hair cosmetic composition according to claim 3, wherein the low-boiling point silicone is a low-boiling point chain silicone. 7. The hair cosmetic composition according to claim 6, wherein the low-boiling chain silicone is dimethylpolysiloxane. 8. The hair cosmetic composition according to claim 2, wherein the low boiling point oil is a low boiling point isoparaffin hydrocarbon having 1 to 30 carbon atoms. 9. The hair cosmetic composition according to any one of claims 1 to 8, wherein the hair cosmetic composition is an emulsion cosmetic composition. 10. The hair cosmetic composition according to claim 9, wherein the emulsified cosmetic composition contains a nonionic activator. 11. The hair cosmetic composition according to claim 9, wherein the emulsified cosmetic composition contains a cationic activator. 12. The hair cosmetic composition according to claim 9, wherein the emulsified cosmetic composition contains an anion activator. 13. The hair according to claim 9, wherein the emulsified cosmetic is an emulsified cosmetic prepared by mixing a mixture of a water-soluble polyhydric alcohol and an activator and an oil phase to emulsify the mixture. Cosmetics.