JPH0733628A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic which can prevent or care hair damage by UV rays such as dry, loose hairs or discoloration by combining a water- insoluble, nonvolatile silicones with a specific triazine derivative. CONSTITUTION:Water-insoluble, nonvolatile silicones are combined with a triazine derivative of formula I (R<1> is 6 to 12C alkyl), or further, a UV rays absorber such as octyl methoxy-cinnamate, benzophenone and benzophenone derivatives. Particularly, as the water-insoluble, nonvolatile silicone, are cited dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicones, amino-modified silicones, alkyl-modified silicones and alkoxy-modified silicones. Among them, a compound of formula II (R<2> is 1 to 4C alkyl; a is O to 35, b is 1 to 45; c is 0 to 1,000) can be cited as a polyether-modified silicone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic composition, and more particularly to a hair cosmetic composition capable of preventing and caring for damages caused by ultraviolet rays such as dryness of hair and changes in hair color.

[0002]

2. Description of the Related Art In outdoor life such as in the sea or mountains, hair is easily damaged by ultraviolet rays, such as dullness and discoloration of reddish brown. Conventionally, for the purpose of preventing such damage to the hair due to ultraviolet rays, hair cosmetics (Japanese Patent Laid-Open No. 4-224508) containing highly polymerized dimethylpolysiloxane and benzophenones as ultraviolet absorbers, high molecular silicone and oxidation Hair cosmetics containing an inhibitor (JP-A-1-
No. 211515) has been proposed.

However, these hair cosmetics have not been sufficiently satisfactory in terms of light stability, safety and damage prevention effect. Therefore, there has been a demand for a hair cosmetic composition which can prevent damage to hair due to ultraviolet rays and is excellent in stability and safety.

[0004]

Under such circumstances, as a result of intensive studies, the present inventors have found that, when water-insoluble nonvolatile silicones and a specific triazine derivative are used in combination, damage to the hair due to ultraviolet rays and color tone are caused. The present invention has been completed by finding that a hair cosmetic composition which can suppress the change in the composition, has a good feel, and is excellent in stability and safety can be obtained.

That is, the present invention provides the following components (a) and (b): (a) Water-insoluble nonvolatile silicones (b) Formula (1)

[0006]

[Chemical 2]

The present invention provides a hair cosmetic composition containing a triazine derivative represented by the formula (wherein R ¹ represents an alkyl group having 6 to 12 carbon atoms).

Examples of the water-insoluble non-volatile silicones (a) used in the present invention include dimethyl polysiloxane, methylphenyl polysiloxane, polyether modified silicone, amino modified silicone, alkyl modified silicone, alkoxy modified silicone and the like. Can be mentioned.

Of these, dimethylpolysiloxane,
Methylphenyl polysiloxanes with a viscosity at 25 ° C of 1000 cs or more, especially 100,000 cs or more,
It is preferable because it does not easily come off after it adheres to the hair. Such high viscosity silicone derivatives have low viscosity (500cs
The following) may be diluted with simethicone, volatile cyclic silicone, volatile isoparaffin or the like to reduce the viscosity and then used.

Examples of the polyether-modified silicone include those represented by the following formulas (2) to (5).

[0011]

[Chemical 3]

(In the formula, R ² represents an alkyl group having 1 to 4 carbon atoms, a is a number from 0 to 35, b is a number from 1 to 45, and c is 0.
~ 1000 numbers)

[0013]

[Chemical 4]

[In the formula, R ³ is a hydrogen atom and has 1 to 12 carbon atoms.
Represents an alkyl group or a group —OC _i H _{2i + 1} (i represents a number of 0 to 6), and d is 2 to 500 (preferably 20 to 8).
0), e is a number from 1 to 50 (preferably 1 to 30),
f is a number from 0 to 50 (preferably 1 to 30), and g is 0 to 5
0 (preferably 0 to 35) and h represents a number of 1 to 6 (preferably 2 to 3)]

[0015]

[Chemical 5]

[0016]

[Chemical 6]

[Wherein o is 1 to 300 (preferably 1 to 300)
50), p is a number from 0 to 6 (preferably 2 to 3), q
Is a number of 1 to 50 (preferably 2 to 20), and r is 0 to 50.
(Preferably 0 to 20) and s represents a number of 2 to 500 (preferably 2 to 50)]

Further, examples of the amino-modified silicone include those represented by the following formula (6) or (7).

[0019]

[Chemical 7]

(Wherein R ⁵ represents a methyl group or a hydroxy group, R ⁶ represents a methyl group or a hydrogen atom, R ⁷ represents an alkylamino group or an alkenylamino group, and R ⁸ represents a hydroxy group or a hydroxyalkyl group. Group, an oxyalkylene group or a polyoxyalkylene group, and t, u and v each represent an integer depending on the molecular weight)

Among these amino-modified silicones, particularly preferable ones are those represented by the following formula (8).

[0022]

[Chemical 8]

(Wherein R ⁷ , u and v have the same meanings as described above) A typical example of such amino-modified silicone is the average molecular weight of the polymer represented by the following formula (9). Of about 3,000 to 100,000, which is called CTFA dictionary (Cosmetic Ingres, USA) under the name of Amodimethicone.
dient Dictionary) 3rd edition.

[0024]

[Chemical 9]

(In the formula, w and x are molecular weights of 3,000 to 1)
Indicates an integer that depends on 0,000)

Examples of the alkyl-modified silicone include those represented by the following formula (10) or (11).

[0027]

[Chemical 10]

In the formula (11), R ¹¹ represents an alkyl group having 10 to 20 carbon atoms, and a ′ and b ′ are 1 to 100, respectively.
Indicates a number of 0 (preferably 1 to 200)]

Further, examples of the alkoxy-modified silicone include those represented by the following formula (12).

[0030]

[Chemical 11]

[Wherein R ¹² represents an alkyl group having 1 to 28 (preferably 12 to 22) carbon atoms, R ¹³ represents a methyl group or a phenyl group, c'is a number from 0 to 6, and d'is Is 1-3
The number of 000, e ′ and f ′ are numbers such that e ′ + f ′ = 1 to 500] Among these alkoxy-modified silicones, preferred are those represented by the following formula (13). .

[0032]

[Chemical 12]

(Wherein R ¹² has the same meaning as described above,
g'is a number from 1 to 100 and h'is a number from 1 to 50)

These silicones can be used alone or in combination of two or more, and the compounding amount thereof is not particularly limited, but 0.5 to 50% by weight (hereinafter,
%), Especially when added in an amount of 1 to 30% by weight, the film formation of silicones on hair is excellent, and the UV care effect,
It is possible to fully demonstrate performance such as dryness prevention effect,
preferable.

The triazine derivative which is the component (b) used in the present invention is represented by the above formula (1), and is UV.
It acts as an ultraviolet absorber that absorbs ultraviolet rays in the -B region. In the formula (1), R ¹ represents an alkyl group having 6 to 12 carbon atoms, but a 2-ethylhexyl group is particularly preferable, and as a commercially available product of such a triazine derivative, U 1 is used.
vinul T150 (manufactured by BASF) or the like can be used.

These triazine derivatives (1) are added in an amount of 0.1 to 2 in the total composition in order to obtain a sufficient ultraviolet ray absorbing effect.
It is preferable to add 0%, particularly 0.2 to 10%.

If a UV absorber other than the triazine derivative as the component (b) is added to the hair cosmetic composition of the present invention,
It is preferable because the hair care effect and stability are further improved. Examples of such an ultraviolet absorber include octyl methoxycinnamate, benzophenone, and benzophenone derivatives. Among these commercially available products, octyl methoxycinnamate is Parsole MCX (manufactured by Givaudan): 2-hydroxy-among benzophenone derivatives.
Uvinul M-4 as 4-methoxybenzophenone
0 (manufactured by BASF); Uvinul MS-40 as benzophenone sulfonic acid (manufactured by BASF); Uvinul MS-as sodium benzophenone sulfonate
For example, the sodium salt of 40 can be used.

These UV absorbers are added in an amount of 0.1 to 20 in the total composition in order to sufficiently obtain these UV absorbing effects.
%, Particularly 0.2 to 10% is preferable.

Further, in addition to the above-mentioned components, the hair cosmetic composition of the present invention may be a component used in a usual hair cosmetic composition depending on the purpose, for example, an anionic surfactant, a nonionic surfactant or a cationic surfactant. Activator, ester oil, styling property-imparting polymer, alcohol, solvent such as propylene glycol, antiseptic, bactericide, perfume, pH adjuster, dye, aerosol propellant, etc. are appropriately blended within a range that does not impair the effects of the present invention. can do.

The hair cosmetic composition of the present invention can be produced by mixing the above-mentioned components in accordance with a conventional method. For example, an out bath agent such as hair mousse, hair oil, styling agent, shampoo, rinse, treatment, hair conditioner, etc. Can be used as an in bath agent.

[0041]

EFFECTS OF THE INVENTION The hair cosmetic composition of the present invention suppresses damage to the hair due to ultraviolet rays, such as changes in color tone, has an excellent hair care effect, and has a good feel.
It has excellent stability and safety.

[0042]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 5 and Comparative Examples 1 to 2 Hair oils having the compositions shown in Table 1 were produced by a conventional method, and the degree of hair damage when these were used was evaluated. The results are shown in Table 1.
Shown in. (Evaluation method) Japanese black hair of 1 g / 5 cm was treated with hair oil, irradiated with ultraviolet rays by a solar simulator for 8 hours, and then the change in color tone was visually evaluated, and the feel was sensory evaluated. Evaluation criteria: ◯: No change is seen in comparison with untreated hair. Δ: A slight change is observed as compared with untreated hair. X: A clear change is seen in comparison with untreated hair.

[0044]

[Table 1]

[0045]

Table 2 Example 6 Shampoo composition: (ingredient) (%) 1. Polyoxyethylene lauryl ether sulfate Na (2EO) 12 1. Lauric acid diethanolamide 3 3. Dimethyl polysiloxane (20 million cs) 3 4. Ubinar T150 0.2 5. Ubinar MS-40 0.1 6. Methylparaben 0.2 7. Ethylene glycol distearate 28. Salt 2 9. Fragrance 0.3 10. Dye (Yellow No. 4) Trace 11. Purified water balance

After the above ingredients were uniformly mixed at 75 ° C. and cooled, a pearly shampoo composition was obtained.

[0047]

Table 3 Example 7 Conditioner composition: (ingredient) (%) 1. Cetostearyl trimethyl ammonium chloride 2 2. Cetanol 2 3. Silicone KF6002 3 (Shin-Etsu Chemical Co., Ltd .: Polyether-modified silicone) 4. Ubinar T150 0.2 5. Parsole MCX 0.2 6. Butyl hydroxytoluene 0.1 7. Caisson CG 3ppm 8. Hydroxyethyl cellulose 0.5 9. Fragrance 0.5 10. Dye (Green No. 3) Trace 11. Purified water balance

After the above ingredients were uniformly mixed at 80 ° C. and cooled, a creamy hair conditioner composition was obtained.

[0049]

Table 4 Example 8 Hair Mousse: (ingredient) (%) 1. Dimethyl polysiloxane (1 million cs) 3 2. Octamethylcyclotetrasiloxane 10 3. Ubinar T150 1.5 4. Ubinal M-40 0.1 5. Glycerin 26. Emanone CH80 (Kao: nonionic surfactant) 2 7. Ethanol 15 8. Tocopherol acetate 0.1 9. Perfume 0.2 10. Purified water 60.1 11. n-butane 7

The components 1 to 10 are mixed to prepare an emulsion,
After putting in an aerosol can and attaching a valve, ingredient 11 was filled to obtain a hair mousse agent.

[0051]

Table 5 Example 9 Hair oil: (ingredient) (%) 1. Methylphenyl polysiloxane (100,000 cs) 3 2. Ubinal T150 5 3.2 Ethylhexanoic acid triglyceride 40 4. Emanone CH80 (manufactured by Kao: nonionic surfactant) 5 5. Isozol 450 47 6. Fragrance 0.2

The above components were uniformly mixed to obtain a liquid hair oil composition.

The hair cosmetics obtained in Examples 6 to 9 were all capable of suppressing damage to the hair due to ultraviolet rays, had a good feel, and were excellent in stability and safety.

Claims (3)

[Claims] 1. The following components (a) and (b): (a) Water-insoluble nonvolatile silicones (b) Formula (1) A hair cosmetic containing a triazine derivative represented by the formula (wherein each R ¹ represents an alkyl group having 6 to 12 carbon atoms). 2. The water-insoluble nonvolatile silicones are dimethylpolysiloxane, methylphenylpolysiloxane,
Polyether modified silicone, amino modified silicone,
The hair cosmetic composition according to claim 1, which is selected from alkyl-modified silicone and alkoxy-modified silicone. 3. The hair cosmetic composition according to claim 1, further comprising an ultraviolet absorber selected from octyl methoxycinnamate, benzophenone and benzophenone derivatives.