JPH03291210A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To provide a hair cosmetic containing a specific silicone oil, a hydrocarbon and/or ester having a specific inorganic/organic ratio, a polyalkylene glycol ether, etc., and effective in making gray hair inconspicuous. CONSTITUTION:The objective cosmetic contains (A) 0.1-30wt.% of a silicone oil having a viscosity of >=10,000cSt at 25 deg.C and expressed by formula (R<1> is H, 1-3C lower alkyl or phenyl; R<2> is 1-3C lower alkyl or OH; n is >=900), (B) 1/2 to 10 pts. (based on 1 pt. of the silicone oil) of a hydrocarbon and/or an ester having theta of 0-30 deg. (tantheta = inorganic value/organic value on an organic conceptual diagram drawn by taking the organic value as abscissa and the inorganic value as ordinate) and (C) 0.1-30wt.% of at least one compound selected from polyoxyalkylene glycol ether, its derivative and an ampholytic polymeric compound. The cosmetic is produced by properly compounding arbitrary components to the above essential components.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has the effect of making gray hair less noticeable, has less stickiness and stiffness, and is suitable as a hair styling agent such as hair liquid and hair foam. Regarding.

Hair loss and gray hair are overwhelmingly the hair-related concerns of adult men who are about to grow up in the future, and there is a strong demand for hair cosmetics that can solve these concerns.

Conventionally, many hair cosmetics that have the effect of making gray hair less noticeable have been proposed. Specifically, hair that employs methods such as (1) blending a large amount of dye to dye the gray hair itself, and (2) blending a large amount of oily ingredients to make gray hair less noticeable through hair styling and shine from the oil. There are many cosmetics available on the market.

However, method (1) has problems in use, such as the dye staining the skin, staining between the nails during use, and washing off with sweat or rain, causing stains on clothing. In addition, method (2) has the disadvantage that the hair tends to become sticky and stiff due to the presence of too much oily component, and the directivity is low.

On the other hand, in recent years, hair liquid,
Hair foams and the like are often used, and hair pomades, hair tics, etc. that have been used for a long time are only used by a small number of elderly people. This is presumed to be because most modern men do not like hair cosmetics that have a sticky feel, such as hair pomades and hair ticks.

Therefore, hair cosmetics that have the effect of hiding gray hair are particularly desired to have less stickiness and stiffness.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a hair cosmetic that has the effect of making gray hair less noticeable, has less stickiness and stiffness on the hair, and is free from problems in use. .

Means for Solving and Effects As a result of extensive studies to achieve the above object, the present inventors found that a specific silicone oil represented by the following formula (1),
One or two selected from hydrocarbons and/or esters having specific inorganic/organic values, polyalkylene gellicol ethers and derivatives thereof, and amphoteric polymer compounds
The present inventors have discovered that a hair cosmetic having all of the above effects can be obtained by using at least one of the above-mentioned effects in combination, and have thus come up with the present invention.

That is, in order to achieve the above object, the present invention provides the following general formula (1) (wherein R1 is a hydrogen atom, a lower alkyl group having 1 to 3 carbon atoms, or a phenyl group, and R2 is a 3 is a lower alkyl group or a hydroxyl group. Also, n is 900 or more.), and the viscosity at 25°C is 1.0.000-t-
With silicone oil that is more than 100ml.

In an organic conceptual diagram with the organic value as the horizontal axis and the inorganic value as the vertical axis, tan θ = inorganic value/organic value θ of hydrocarbon and/or ester located in the region of 0 to 30'', and polyoxy Provided is a hair cosmetic characterized by using one or more selected from alkylene glycol ethers, derivatives thereof, and amphoteric polymer compounds in combination.

The effect of the hair cosmetic of the present invention on making gray hair less noticeable is that it gives the hair an oily luster (shine), and at the same time reduces the exposed area of the entire hair with strong hair styling power and makes it flat. , which takes advantage of the fact that it is difficult to distinguish between white and black hair in areas where light is reflected, and since it does not contain dye, there are no problems when using it.

The present invention will be explained in more detail below.

The silicone oil, which is the first essential component of the present invention, has the following general formula (1) (wherein R1 is a hydrogen atom, a methyl group, etc. with 1 to 1 carbon atoms)
3 lower alkyl group or phenyl group.

R2 is a lower alkyl group having 1 to 3 carbon atoms such as a methyl group or a hydroxyl group. Further, n is 900 or more. ), and specific examples include dimethylpolysiloxane, methylphenylpolysiloxane, etc., and one type of these can be used alone or two or more types can be used in combination.

Here, the silicone oil of formula (1) has a viscosity of 10,000 centistokes (cst) or more at 25°C, preferably 10,000 to 3,000,0000000cst.
.

More preferably 100,000 to 2,000,0OOc
st(7) and has a viscosity of 10 + 000 cs
If it is lower than t, the object of the present invention cannot be achieved.

The amount of the silicone oil of formula (1) above is 0.1 to 30% (by weight) of the entire hair cosmetic.

The same applies hereafter), and it is particularly preferable to set the amount to 0.5 to 20%. If the amount is less than 0.1%, the desired effect may not be obtained, and if it exceeds 30%, the hair will become sticky. This may result in a heavy finish, and the hair styling ability may be reduced, resulting in a poor gray hair hiding effect, which may be undesirable.

In the present invention, a specific hydrocarbon and/or ester is blended as the second essential component.

By blending this second component, the object of the present invention can be achieved by improving the adhesion of the silicone oil of formula (1), which is difficult to uniformly adhere to the hair surface when blended alone.

Here, the hydrocarbons and esters used in the present invention have tanθ=inorganic value/organic value θ of 0 to 30 in an organic conceptual diagram in which the horizontal axis is the organic value and the vertical axis is the inorganic value. '
It is located in the area of

Regarding the above organic conceptual diagram, please refer to "Chemistry Area J V
ol, 11, No. 10 (October 1957 issue)
It is described in detail in pages 719-725 and "Systematic Organic Qualitative Analysis (Purity 1i)" J Kazama Shobo (1970). That is, organic compounds are composed of chains of covalent bonds between carbon chains. ``organic'' due to hydrocarbons, and ``inorganic'' due to the electrostatic effect of substituents (functional groups).
Focusing on the fact that it is made up of two factors, we quantified these ``organic'' and ``inorganic'' and expressed them as coordinates on an orthogonal axis with the organic value on the horizontal axis and the inorganic value on the vertical axis. By doing so, each organic compound of II is specified.

In the present invention, the inorganic value/organic value is expressed as tan θ, and the atomizing agent for dimethylpolysiloxane is specified by limiting θ.

Note that the organic value is calculated as 20 per carbon 14I in the structural formula of the compound, and the inorganic value is calculated using the values determined for each functional group described in the above publication. Again.

→CH, -CH,O) The inorganic value of the group was calculated as 75 based on the inventors' previous experience.

The hydrocarbons and esters used in the present invention are expressed as θ (tan-'inorganic value/organic value) in the organic conceptual diagram.
is in the range of 0 to 30@ and is preferably a substance that is liquid at room temperature.

Such hydrocarbons and esters include 1, for example α-
Olefin oligomer, liquid puff-in.

Hydrocarbons that are liquid at room temperature such as isoparaffin, liquid isoparaffin, squalane, and squalene, and isopropyl myristate as an ester.

Isopropyl palmitate, neopentyl glycol
Examples include 2-ethylhexanate, and one or more of these can be used.

The amount of the hydrocarbon and ester to be blended is not particularly limited, but is usually used in an amount of 1 to 2 times to 10 times, preferably an equivalent to 5 times the amount of the silicone oil.

If the amount is less than 1 to 2 times the amount of silicone oil, the adhesion of the polymer silicone may not be improved and it may become sticky or dry in some areas, and if it is more than 10 times the amount, stickiness may occur. be.

The third essential component of the present invention is selected from polyalkylene gelyl ethers, derivatives thereof, and amphoteric polymer compounds.

Here, as the polyalkylene gellicol ether or its derivative, one represented by the following general formula (2) is preferably used.

R-0(R"0)a-(EO)b R'...
・(2) (Here, R represents an alcohol residue or sugar alcohol residue having 1 to 22 carbon atoms, or a polyhydric alcohol residue having 2 to 6 carbon atoms, and R' is a hydrogen atom or an inorganic residue such as phosphoric acid. acid, an organic acid such as succinic acid, adipic acid, or an ester group such as a fatty acid whose alkyl group has 12 to 22 carbon atoms, and R'' represents a propylene group or a butyl group.Also, a
represents an integer of 0 to 200, b represents an integer of 0 to 200, and a
and b cannot become 0 at the same time. Furthermore, EO represents ethylene oxide.) An example of the polyoxyalkylene glycol ether used in the present invention is glycerin.

Polyhydric alcohols such as pentaerythritol, trimethylolpropane, trimethylolethane, mannitan, sorbitan, diglycerin, sorbitol, and mannitol, or sugar alcohols such as monosaccharides, disaccharides, and oligosaccharides are used as the core, and 1 mol of these 0 to 2 propylene oxide (po) or butylene oxide (BO) to
00 mol, preferably 10 to 50 mol, of addition-polymerized compounds, or these compounds are further added with ethylene oxide (
EO) Compounds in which 0 to 20 moles, preferably 1 to 10 moles of EO) are addition-polymerized in a random or block manner can be mentioned.

Further, as the polyoxyalkylene glycol ether derivatives used in the present invention, esterification products of the above polyoxyalkylene glycol ethers and saturated aliphatic dicarboxylic acids such as adipic acid, succinic acid, malic acid and tartaric acid, and Esterified products with oxydicarboxylic acids [e.g., Ca5ual (product name: 5 Nisshin Oil Co., Ltd.)],
There are esterified products with phosphoric acid [for example, Perlon EP (trade name, manufactured by Goyo Kagaku Co., Ltd.)] and esterified products with fatty acids such as isostearic acid.

Next, as an amphoteric polymer compound, the following general formula (3) (However, in the formula 9, R1 is a hydrogen atom or a methyl group, R4 is an alkylene group having 1 to 4 carbon atoms, R5 and R@ are a hydrogen atom or a carbon number The 1 to 4 alkyl group and R7 are an alkyl group, an alkenyl group, or a cycloalkyl group having 1 to 30 carbon atoms.

Moreover, A is an oxygen atom or an NH group. ) can be used that has a unit structure shown in the following in its molecule.

In addition, in the present invention, in particular, among the amphoteric polymer compounds having the unit structure of formula (2), R3, RS, and R in formula (2)
6 is a methyl group, R4 is an ethylene group, R7 is an alkyl group having 1 to 30 carbon atoms, A is an oxygen atom, and the average molecular weight is 70,000 to 90,000 1 For example, N-methacroylethyl-N, N A mixed alkyl copolymer of -dimethylammonium/α-N-methylcarboxybetaine/methacrylic acid 02 to C2 (having 2 to 24 carbon atoms) is preferably used. Specific examples of such amphoteric polymer compounds include Yukaformer 204WL (manufactured by Mitsubishi Yuka Co., Ltd.).

The hair cosmetic of the present invention contains one or more selected from the above-mentioned polyoxyalkylene glycol ethers, derivatives thereof, and amphoteric polymer compounds as the third essential ingredient.

In this case, the blending amount of polyoxyalkylene glycol ether or its derivative is 0.1 to 3 of 2 hair cosmetic materials.
It is preferably 0%, especially 1 to 15%, and the amount of the amphoteric polymer compound is 0.1 to 15% of the total hair cosmetic.
It is preferably 20%, particularly 0.5 to 10%.

The hair cosmetic of the present invention may contain other optional ingredients depending on the dosage form within a range that does not affect the effects of the present invention, such as hydrotropes, polymer substances, oils, emulsifiers, solubilizers, etc. Agents, pigments, fragrances, etc. may be added.

The hair cosmetic of the present invention has an excellent effect of making gray hair less noticeable, is less likely to cause sticky hair, has high hair styling ability, and is suitable for use in skin dyeing, etc. No problem. Therefore, the product of the present invention can be effectively used as a hair styling agent such as a hair liquid or hair foam in the form of a lotion, an aerosol, or the like.

EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In addition, in the following examples, all percentages are percentages by weight.

In addition, prior to each side, the sample preparation and evaluation methods adopted by each side are shown.

(a) Silicone oil, hydrocarbon or ester oil was mixed to form an oily component phase.

(b) Oil-soluble components such as polyoxyalkylene glycol ether or its derivatives, amphoteric polymer compounds, solubilizers, fragrances, etc. were dissolved in ethanol, and then mixed with purified water to homogenize to form an aqueous phase. Note that for polyoxyalkylene glycol ether or its derivatives, and amphoteric polymer compounds, those with particularly high water solubility were directly dissolved in purified water.

(c) The above-mentioned oily component phase and aqueous phase were placed in a predetermined container and shaken at the time of use to uniformly disperse both phases.

Here, if the sample is an emulsion type, the above-mentioned oily component phase.

An emulsifier was added to the aqueous phase and emulsified using an Ajihomo mixer (manufactured by Tokushu Kika Co., Ltd.). In the case of an aerosol type, the above-mentioned oil component phase, aqueous phase and propellant were filled into an aerosol container and shaken before use.

Using a hair bundle (15 cm, 3 g) with approximately 20% group 4 gray hair,
The following tests were conducted.

(a) Gray hair hiding effect Hair was washed with a 6% aqueous solution of polyoxyethylene (p=3) sodium lauryl ether sulfate (LES-Na), rinsed with running water, and then gently removed moisture with a dry towel. 0.3 g of the sample was applied and spread evenly over the entire hair using a comb. After that, pass it through a comb and
It was air-dried in a thermostatic chamber at 25°C. Separately, hair was washed and rinsed for the judgment criteria, and petroleum jelly was added at 0.1~
0.5g was applied and air-dried under the same conditions as above.

The gray hair hiding effect of each sample of the hair treated in this way was judged by five professional evaluators according to the following criteria, and the average value was calculated and evaluated on a five-point scale.

Judgment criteria: 1: The inconspicuousness of gray hair is equivalent to that of a product coated with 0.1 g of Vaseline.

2: The inconspicuousness of gray hair is between the product coated with 0.1g of petrolatum and the product coated with 0.3g petrolatum.

3: The inconspicuousness of gray hair is equivalent to that of a product coated with 0.3 g of Vaseline.

4: The inconspicuousness of gray hair is between the product coated with 0.3g of petrolatum and the product coated with 0.5g petrolatum.

5: The inconspicuousness of gray hair is equivalent to that of a product coated with 0.5 g of Vaseline.

Evaluation: ×: Average value of 5 expert evaluators is less than 2 points Δ: Average value of 5 expert evaluators is 2 points or more and less than 3 points ○: Average value of 5 expert evaluators is 3 points or more and 4 points Less than O: The average value of 5 professional evaluators is 4 points or more (b) Lack of stickiness The sample and hair for judgment criteria were treated in the same manner as in the above-mentioned evaluation of gray hair hiding effect, and 5 professional evaluators Determine the non-stickiness of the sample using the following criteria, calculate the average value, and
Graded evaluation.

Judgment criteria: 1: Non-stickiness is equivalent to a product coated with 0.5g of Vaseline.

2: The lack of human interaction is between the product coated with 0.5g of petrolatum and the product coated with 0.3g petrolatum.

3: The lack of stickiness is equivalent to that of a product coated with 0.3 g of Vaseline.

4: The lack of stickiness is between the product coated with 0.3g of petrolatum and the product coated with 0.1g petrolatum.

5: The lack of stickiness is comparable to that of a product coated with 0.1 g of vaseline.

evaluation: ×: The average value of 5 people is less than 2 points.

Δ: The average value of 5 people is 2 points or more and less than 3 points.

○: The average value of 5 people is 3 points or more and less than 4 points.

O: The average value of 5 people is 4 points or more.

(c) The samples and the hair for the judgment criteria were used for the above-mentioned evaluation of gray hair hiding effect, except that PVP (Yukaformer-204WL (manufactured by Mitsubishi Yuka Co., Ltd.)) was applied instead of the sample to the hair for the non-stiffness judgment criteria. The samples were processed in the same manner as in the case above, and the lack of roughness of the samples was judged by five professional evaluators according to the following criteria, and the average value was calculated and evaluated on a five-point scale.

Judgment criteria: 1: Lack of stiffness is PVP (10% aqueous solution) 0.5
It is about the same as the g-coated product.

2: No stiffness due to PVP (10% aqueous solution) 0.5
It is between the product coated with 0.3 g and the product coated with 0.3 g of PVP (10% aqueous solution).

3: No stiffness due to PVP (10% aqueous solution) 0.3
It is about the same as the g-coated product.

4: No stiffness due to PVP (10% aqueous solution) 0.3
It is between the product coated with g and the product coated with 0.1 g of PVP (10% aqueous solution).

5: No stiffness due to PVP (10% aqueous solution) 0.1
It is about the same as the g-coated product.

evaluation: ×: The average value of 5 people is less than 2 points.

Δ: The average value of 5 people is 2 points or more and less than 3 points.

O: The average value of 5 people is 3 points or more and less than 4 points.

O: The average value of 5 people is 4 points or more.

[Examples 1 to 3. Comparative Examples 1 to 3 Hair cosmetics shown in Table 1 were prepared and evaluated for gray hair hiding effect and non-stickiness. The results are also listed in the same table.

10.0OOcst・25°C From the results in Table 1, the hair cosmetics (Examples 1 to 3) containing the essential ingredients of the present invention have a gray hair hiding effect.

Hair cosmetics that have good non-stickiness but do not contain any of the essential ingredients of the present invention (Comparative Examples 1 to 3)
) was not satisfactory in terms of gray hair hiding effect and lack of stickiness.

[Examples 4 to 6, Comparative Examples 4 to 6] Hair cosmetics shown in Table 2 were prepared and evaluated for gray hair hiding effect and lack of stiffness. The results are also listed in the same table.

10.0OOcst・25°C Yukaformer-204WL manufactured by Mitsubishi Yuka Co., Ltd. From the results in Table 2, the hair cosmetics (Examples 4 to 6) containing the essential ingredients of the present invention have a gray hair hiding effect.

Hair cosmetics that are good in terms of lack of stiffness but do not contain any of the essential ingredients of the present invention (Comparative Examples 4 to 6)
) was not satisfactory in terms of gray hair hiding effect 5 and lack of stiffness.

[Example 7] Aerosol type hair cosmetics shown in Table 3 were prepared and evaluated for gray hair hiding effect and non-stickiness, and were found to have excellent performance.

Table [Example 8] Aerosol type hair cosmetics shown in Table 4 were prepared and evaluated for gray hair hiding effect 2 and lack of stiffness, and found to have excellent performance.

Table 4 Former (Kanebo N, S, C, I [Example 9]) The emulsified hair cosmetics (lotions) shown in Table 5 were prepared and evaluated for gray hair hiding effect and non-stickiness. Then,
It had excellent performance.

*5゜*6 pHIIll agent (pH 3 to 6) [Example 10] Emulsified hair cosmetics (lotions) shown in Table 6 were prepared and evaluated for gray hair hiding effect and lack of stiffness.
It has excellent performance.

Table 6 Yu 7 Yukaformer 2055 (manufactured by Mitsubishi Yukajin)

Claims (1)

[Claims] 1. The following general formula (1) ▲There are mathematical formulas, chemical formulas, tables, etc.▼・・・・・・(1) (However, in the formula, R^1 is a hydrogen atom, a carbon number of 1 to 3 It is a lower alkyl group or a phenyl group, and R^2 has 1 to 3 carbon atoms.
lower alkyl group or hydroxyl group. Also, n is 900
That's all. ), and has a viscosity of 10,000 centistokes or more at 25°C, and tanθ in an organic conceptual diagram with organic values on the horizontal axis and inorganic values on the vertical axis.
= One or more hydrocarbons and/or esters located in the range of inorganic value/organic value θ of 0 to 30 degrees, polyoxyalkylene glycol ethers and derivatives thereof, and amphoteric polymer compounds A hair cosmetic characterized by being made in combination with.