JPH09255539A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic excellent in water solubility, having foaming properties while maintaining film-forming properties of chitin or chitosan, by using both a specific chitosan derivative and an anionic surfactant. SOLUTION: This hair cosmetic is obtained by combining a water-soluble chitosan derivative of the formula [R<1> is H or COCH3 ; R<2> is CH2 CO2 H, CH2 CH2 OH, (CH2 CH2 O)m -H, (CH2 CH2 (CH3 )O)m -H or CH2 CH2 CO2 H; (n) is 10-3,000; (m) is 1-20] with an anionic surfactant. A fatty acid salt, a phosphoric ester salt, an alkylbenzenesulfonate, etc., are especially preferable as the anionic surfactant and the amount of the anionic surfactant is 0.0001-10wt.%, especially about 0.001-10wt.%. A chitosan derivative having 10,000-500,000 average molecular weight, especially one having 30-100% dealkylation degree derived from a chitin is preferable as the compound of the formula. The amount of the compound blended is preferable about 0.001-10wt.%. The cosmetic is useful for a pump foamer.

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 having a hair styling property that imparts excellent setting properties to the hair without stickiness.

[0002]

2. Description of the Related Art In recent years, the widespread use of brushing, perms, hair coloring and the like has caused hair to be in a very painful environment. In addition, soft hair or damaged hair has a problem that it is difficult to style because it has no firmness, stiffness or volume. Consumers' voices are often worried that their hair is dry and dull, and that their hair is not organized as expected. In addition, hair comes into direct contact with skin such as the nape of the neck,
Since it is a part that can be touched by hand when care is taken, the sticky and heavy feel is completely disliked.

From the above, as a hair cosmetic for the purpose of styling hair, a material which is not sticky to the hair and improves the setting properties is desired.

Hair cosmetics intended for hair styling include oily hair styling products such as pomade, hair oil, hair cream, hair liquid, set lotion, styling foam, and hair spray.

These hair cosmetics are generally blended with an oily substance or a high molecular compound for the purpose of imparting a hair styling property. However, conventional hair cosmetics blended with an oily substance or a high molecular compound have a poor finish. It was heavy, had a sticky feel forever, and had some drawbacks such as unsatisfactory set durability.

[0006] Therefore, chitin or chitosan has come to be used for the purpose of making the hair easy to put together because the hair is not sticky and has excellent setting properties. On the other hand, as a form of the hair styling product, a mousse or foam-like product having good adhesion to hair and good elongation has come to be preferred.

[0007]

However, since chitin or chitosan has no foaming property by itself, it has been used by being added to some kind of surfactant. In such a form, since only a small amount of chitin or chitosan was added to the surfactant as the main agent, it was not possible to sufficiently exhibit the original excellent film-forming properties of chitin or chitosan. It was

There is a method of using freon gas, LP gas or the like for forming the foam. However, CFCs have a problem of depleting the ozone layer, and LP gas has a problem of being easily ignited because it is a flammable gas. Therefore, in recent years, pump formers that are manually pushed to form bubbles have become the mainstream. Also, chitin or chitosan has poor compatibility with anionic surfactants, and when mousseed, foaming is also poor,
It was not possible to utilize the excellent properties of chitin or chitosan as a styling foam. Therefore,
There has been a demand for a hair cosmetic composition utilizing the excellent characteristics of chitin or chitosan, which easily foams even with a pump former, does not get sticky to hair, and has excellent setting power.

[0009] The problem to be solved by the present invention is that the hair makeup has no sticky feeling, is excellent in settability, has a long-lasting property, and has water-solubility and foaming power that can be used in a pump former. To provide a fee.

[0010]

[Means for Solving the Problems] As a result of diligent studies of materials having good water solubility and foamability while maintaining the film-forming property of chitin or chitosan, the present inventors have found that a specific chitosan The present invention has been completed by finding that the above problem can be solved by using a derivative and an anionic surfactant together.

That is, the present invention is based on the general formula (1)

[0012]

Embedded image

(Wherein R ¹ is a hydrogen atom or --COCH
₃ , R ² is —CH ₂ CO ₂ H or —CH ₂ CH ₂ OH, —
_{(CH 2 CH 2 O) m} -H, - (CH 2 CH (CH 3) O) m
-H, represents a _{CH 2 CH 2 CO 2 H,} n is 10 to 3000
Represents an integer of 1 and m represents an integer of 1 to 20. And a water-soluble chitosan derivative and an anionic surfactant represented by the formula (4) are contained as essential components.

As the anionic surfactant used in the present invention, fatty acid salt, phosphoric acid ester salt, alkylbenzene sulfonate, α-olefin sulfonate, paraffin sulfonate, alkyl sulfate, alkyl ether sulfate, N -Acyl sarcosinate, N-acyl-N-
Methyl-β-alaninate, acyl glutamate, acyl aspartate, alkyl ether carboxylate, amido ether carboxylate, N-acyl-N-methyl taurine salt, acyl isethionate, alkyl sulfosuccinate, alkyl ether sulfosuccinate ,
One or two selected from N-polyoxyethylene fatty acid ethanolamide sulfosuccinate, N-polyoxyethylene fatty acid ethanolamide phosphate ester salt, N-polyoxyethylene fatty acid ethanolamide sulfate ester salt, acyl peptide and acyl silk peptide
Preferably, it is at least one species.

Further, the hair cosmetic is characterized in that the water-soluble chitosan derivative has an average molecular weight of 10,000 to 500,000.

Further, the water-soluble chitosan derivative is
A hair cosmetic composition, which is derived from chitin having a deacetylation degree of 30 to 100%.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The water-soluble chitosan derivative used in the present invention is represented by the above general formula (1).

Specific examples of the water-soluble chitosan derivative represented by the above general formula (1) include carboxymethyl chitosan, carboxyethyl chitosan, hydroxyethyl, polyoxyethylene chitosan and polyoxypropylene chitosan. The chitosan that serves as the skeleton of the water-soluble chitosan derivative of the general formula (1) may be a partial deacetylation of chitin. The degree of deacetylation is not limited, but if it is less than 30%, the water solubility is poor and a sufficient foaming force cannot be obtained. Therefore, the degree of deacetylation is preferably 30 to 100%.

Further, chitosan which does not have a water-soluble functional group at the 6-position has a poor foaming power. Among the water-soluble chitosan derivatives represented by the general formula (1), carboxymethyl chitosan is particularly preferable.

The average molecular weight of the water-soluble chitosan derivative represented by the general formula (1) is not particularly limited, but it is preferable that the average molecular weight is large in view of the setting force, the setting sustainability and the hardness of the film.
However, if the average molecular weight is too high, the viscosity will be high and it will be difficult to mix. Further, if the average molecular weight is less than 10,000, the hardness of the film becomes weak, so the average molecular weight of the water-soluble chitosan derivative of the general formula (1) is preferably 10,000 to 500,000.

The anionic surfactant used in the present invention is not particularly limited, but fatty acid salts, phosphoric acid ester salts, alkylbenzene sulfonates, α-olefin sulfonates, paraffin sulfonates, alkyl sulfates, alkyls. Ether sulfate, N-acyl sarcosinate, N-acyl-N-methyl-β-alaninate, acyl glutamate, acyl aspartate, alkyl ether carboxylate, amido ether carboxylate,
N-acyl-N-methyl taurine salt, acyl isethionate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, N-polyoxyethylene fatty acid ethanolamide sulfosuccinate, N-polyoxyethylene fatty acid ethanolamide phosphate ester salt, N-
Polyoxyethylene fatty acid ethanolamide sulfate ester salt, acyl peptide, and acyl silk peptide are preferable. Among them, fatty acid salts, alkylbenzene sulfonates, α-olefin sulfonates, alkyl sulfates, alkyl ether sulfates, and acyl silk peptides have excellent foaming power and are less sticky to hair.

The blending amount of the water-soluble chitosan derivative of the general formula (1) is not limited, but 0.001 in hair cosmetics.
It is preferable to add 10 to 10% by weight (hereinafter, simply indicated by%). If the blending amount is less than 0.001%, the film-forming property is poor and the hair setting force is insufficient. If the blending amount exceeds 10%, the viscosity is high and the foaming power is lowered, and the hair becomes rough. It is not preferable in terms of feeling such as sticking.

The anionic surfactant is contained in the hair cosmetic composition of the present invention in an amount of 0.0001 to 10%, preferably 0.001 to 1%.
It is preferable to add 0%. If the blending amount is less than 0.0001%, the foaming power is insufficient, and if the blending amount is more than 10%, blending is not preferable from the viewpoint of feeling such as stickiness to hair.

The blending weight ratio of the water-soluble chitosan derivative and the anionic surfactant is not particularly limited, but anionic surfactant / water-soluble chitosan derivative = 0.0001 / 1 to 1
/ 1, preferably 0.001 / 1-1 / 1. If the ratio of the anionic surfactant to the water-soluble chitosan derivative 1 is less than 0.0001, the foaming power is insufficient, and if the ratio of the anionic surfactant to the water-soluble chitosan derivative 1 exceeds 1, the hair becomes sticky. It is not preferable from the viewpoint of feeling.

In the hair cosmetic composition of the present invention, if necessary, a component usually added to detergents, cosmetics, pharmaceuticals, foods, etc., such as amidoamino acids and amphoteric surfactants such as alkylbetaine; Cationic surfactants such as alkyl quaternary ammonium; oils and fats such as silicon derivatives, ester oils and higher alcohols; ethanol; moisturizers such as glycerin and propylene glycol; anti-inflammatory agents, anti-dandruff agents, bactericides, vitamins, etc. Agents, preservatives such as paraben and iodine, ultraviolet absorbers such as oxybenzone, antioxidants such as dibutylhydroxytoluene and tocopherol acetate, colorants such as dyes and pigments, conditioning agents such as cationic polymers, hair such as acrylic resins, etc. Polymer for setting; various kinds of ingredients such as fragrances are appropriately added within a range that does not impair the effects of the present invention. Rukoto can also.

The hair cosmetic composition of the present invention can be produced by a conventional method using the above components to be an aerosol type hair styling composition using a propellant such as styling foam and hair spray, as well as a pump former, a squeeze foamer and the like. It is possible to obtain an aerosol type hair styling product which is housed in the former container and does not use a propellant.

[0027]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Example 1 500 g of carboxymethyl chitosan (concentration 2%, deacetylation degree 70%, average molecular weight about 200,000) was added to polyoxyethylene (3) sodium lauryl ether sulfate (concentration 2
0.4% (5%) was added and dissolved by stirring at 50 ° C. for 1 hour.
The pH was adjusted to 7 and freeze-dried to obtain a sample. About this, the film forming property, the hardness of the film, the foaming power, and the stickiness feeling evaluation test were conducted. The evaluation method and evaluation criteria are as follows. The results are shown in Table 1.

(Film forming property) 1 g of the sample was dissolved in 20 g of distilled water, poured on a fluororesin plate and dried at 50 ° C. for 24 hours to remove water. Then, the formation of the film was observed. The evaluation criteria were set as follows.

◯: There was film-forming property and could be peeled from the plate as a single film. ×: No film-forming property and no film was formed. (Hardness of film) Obtained by film forming test. Regarding the membrane, JIS
The hardness of the film was measured by a pencil hardness test according to the pencil scratch test method for coating of (K5400-1990). The evaluation is indicated by the softest pencil hardness that can scratch the film.

(Foaming Power) 1 g of the sample was dissolved in 90 g of a 10% EtOH aqueous solution, and the foaming power was measured using a pump former. 200ml of foam volume after 15 strokes
The volume was measured by the height of the foam after 5 minutes in the tall beaker.

The evaluation criteria were set as follows.

◎: Foam amount: 60 mm or more, excellent foaming power ○: Foam amount: 40 mm or more, less than 60 mm, excellent foaming power Δ: Foam amount: 20 mm or more, less than 40 mm, normal foaming power ×: Bubble amount: less than 20 mm, inferior foaming power (stickiness) 10 panelists aged 20 to 40 were made to dissolve 1 g of sample in 90 g of 10% EtOH aqueous solution and put in a pump former to use it. The sensory evaluation of was carried out and evaluated as follows.

Rating: No sticky feeling 3 Little sticky feeling 2 Slight sticky feeling 1 Sticky feeling 0 Evaluation criteria ◎: Average score 2 or more and 3 or less ○: Average score 1.5 or more and less than 2 △ : Average score 1 or more and less than 1.5 ×: Average score 1 or less Examples 2 and 3 The carboxymethyl chitosan of Example 1 was converted to polyoxyethylene (5) ether chitosan (concentration 2%, deacetylation degree 70%, average molecular weight). About 200,000) or polyoxypropylene (5) ether chitosan (concentration 2%, deacetylation degree 70%, average molecular weight about 200,000), and a sample was prepared in the same manner as in Example 1 to form a film, Film hardness, foaming power,
A sticky feeling evaluation test was performed. The results are shown in Table 1.

Comparative Examples 1 to 4 The carboxymethyl chitosan of Example 1 was converted to chitosan (concentration 100%, deacetylation degree 70%, average molecular weight about 20).
10 g, N-succinyl chitosan (concentration 2%, substitution degree 70%, average molecular weight about 200,000), N-trimethylammonium chitosan (concentration 2%, quaternization degree 70%, average molecular weight about 200,000), polyvinyl Pyrrolidone (concentration 99%,
Average molecular weight 40,000, US I.S. S. P. A sample was prepared in the same manner as in Example 1 except that the product was changed to 10 g (trade name "PVP K-30" manufactured by the same company), and the film forming property, film hardness, foaming power, and sticky feeling were evaluated. The results are shown in Table 1.

[0036]

[Table 1]

As is clear from the results shown in Table 1, the hair cosmetics of Examples 1 to 3 in which the water-soluble chitosan derivative of the present invention and the anionic surfactant were combined were found to have film-forming properties and film hardness. It was excellent in foaming power and stickiness. On the other hand, the hair cosmetic composition of Comparative Example 1 containing chitosan has no film-forming property and further has a weak foaming power, and the hair cosmetic composition of Comparative Examples 2 and 3 containing N-trimethylammonium chitosan or N-succinyl chitosan is used. The film-forming property was relatively excellent, but the foaming power was weak. In addition, the hair cosmetic of Comparative Example 4 containing polyvinylpyrrolidone commonly used in hair cosmetics had no film-forming property and weak foaming power.

Examples 4 to 22 As shown in Tables 2 and 3, 0.10 g of anion activator sodium laurate (concentration 99%), polyoxyethylene (5) laurate monoethanolamide disodium sulfosuccinate ( (Concentration 30%) 0.33 g, sodium lauryl sulfate (concentration 99%) 0.10 g, sodium lauroyl hydrolyzed silk (concentration 23%) 0.43
g, lauroyl-N-methyl-β-alanine sodium (concentration 30%) 0.33 g, polyoxyethylene (3)
0.33 g of sodium lauric acid monoethanolamide sulfate (concentration 30%), 0.33 g of amidopropyl betaine laurate (concentration 30%), 0.13 g of sodium dioctyl sulfosuccinate (concentration 75%), sodium laurylbenzenesulfonate (concentration) 51%) 0.20 g,
0.10 g of potassium lauryl phosphate (concentration 100%),
C _{14-.alpha.-sodium} olefin sulfonate (concentration 95
%) 0.11 g, sodium cocoyl sarcosine (concentration 30%) 0.33 g, sodium lauroyl-L-glutamate (concentration 100%) 0.10 g, sodium lauroyl aspartate (concentration 100%) 0.10 g, lauryl ether carboxylic acid Sodium (concentration 30%)
0.33 g, sodium lauroyl-N-methyltaurine (concentration 26%) 0.28 g, sodium cocoyl isethionate (concentration 100%) 0.10 g, polyoxyethylene (5) lauric acid monoethanolamide sodium phosphate (concentration 25%) 0.40 g and lauroyl hydrolyzed collagen (concentration 35%) 0.29 g were used to prepare a sample in the same manner as in Example 1, and the film-forming property, the hardness of the film, the foaming power,
A sticky feeling evaluation test was performed. The results are shown in Table 4.

[0039]

[Table 2]

[0040]

[Table 3]

[0041]

[Table 4]

As is clear from the results shown in Table 4, the hair cosmetics of the present invention of Examples 4 to 22 in which the water-soluble chitosan derivative and the anionic surfactant were used in combination had a film-forming property,
The film was excellent in hardness, foaming power and stickiness.

Examples 23 to 26 Carboxymethyl chitosan of Example 1 (concentration 2%, deacetylation degree 70%, average molecular weight about 200,000) was used as carboxymethyl chitosan (concentration 2%, deacetylation degree 30%, average). Molecular weight about 200,000), carboxymethyl chitosan (concentration 2%, deacetylation degree 90%, average molecular weight about 200,000),
Carboxymethyl chitosan (concentration 2%, deacetylation degree 70%, average molecular weight about 10,000), carboxymethyl chitosan (concentration 2%, deacetylation degree 70%, average molecular weight about 5)
Samples were prepared in the same manner as in Example 1 except that the amount was changed to 100,000), and an evaluation test of film-forming property, film hardness, foaming power, and sticky feeling was performed. Table 5 shows the results.

Examples 27 and 28 Samples were prepared in the same manner as in Example 1 except that the compounding amount of polyoxyethylene (3) sodium lauryl ether sulfate (concentration 25%) was changed to 0.004 g and 10 g to form a film. The film hardness, foaming power, and stickiness were evaluated. Table 5 shows the results.

Comparative Examples 5 to 7 Carboxymethyl chitosan of Example 1 (concentration 2%, deacetylation degree 70%, average molecular weight about 200,000) was used as carboxymethyl chitosan (concentration 2%, deacetylation degree 20%, average). Carboxymethyl chitosan (concentration 2%, deacetylation degree 70%, average molecular weight about 1000), carboxymethyl chitosan (concentration 2%, deacetylation degree 30%, average molecular weight about 100) 10,000) Example 1
Samples were prepared in the same manner as above, and evaluation tests of film-forming property, film hardness, foaming power, and stickiness were performed. Table 5 shows the results.

Comparative Examples 8 and 9 Polyoxyethylene (3) sodium lauryl ether sulfate (concentration 25%) was added in an amount of 50 g or 0.00
A sample was prepared in the same manner as in Example 1 except that the amount was changed to 2 g, and an evaluation test of film-forming property, film hardness, foaming power, and stickiness was performed. Table 5 shows the results.

[0047]

[Table 5]

As is clear from the results in Table 5, the deacetylation degree and the average molecular weight are within the range of the general formula (1), and the anionic surfactant, the water-soluble chitosan derivative and the weight mixing ratio are 0.0001 /. The hair cosmetics of Examples 23 to 28 in the range of 1 to 1/1 were excellent in film-forming property, film hardness, foaming power and stickiness. On the other hand, a hair cosmetic containing the water-soluble chitosan derivative of Comparative Example 5 having a degree of deacetylation of less than 30%, Comparative Example 6 having an average molecular weight of less than 10,000 and Comparative Example 7 having an average molecular weight of more than 500,000 is formed into a film. Although it had good toughness and stickiness, it had inferior foaming power and lacked film hardness. Further, even in the combination of the anionic surfactant and the water-soluble chitosan derivative represented by the general formula (1), one anionic surfactant is used for the water-soluble chitosan derivative 1.
The hair cosmetic composition of Comparative Example 8 exceeding 10 was extremely sticky, and the hair cosmetic composition of Comparative Example 9 in which the amount of the anionic surfactant with respect to the water-soluble chitosan derivative 1 was less than 0.0001 was insufficient in foaming power.

[0049]

EFFECTS OF THE INVENTION The hair cosmetic composition of the present invention has no sticky feeling, is excellent in settability, has long-lasting properties, and has water-solubility and foaming power which can be used in a pump former. .

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tamotsu Fujii 2835 Imafuku, Kawagoe City, Saitama Kawaken Fine Chemicals Co., Ltd. (72) Inventor Hiroko Sato 2-1-3 Fumika, Sumida-ku, Tokyo Kao Corporation Inside the Institute (72) Inventor Jiro Kawase Inside the Institute, Kao Stock Company, 2-1-3 Fumika, Sumida-ku, Tokyo

Claims (4)

[Claims] 1. A compound of the general formula (1) (In the formula, R ¹ is a hydrogen atom or —COCH ₃ , and R ² is —C.
H ₂ CO ₂ H or _{-CH 2 CH 2 OH, - (} CH 2 CH
₂ O) _m -H,-(CH ₂ CH (CH ₃ ) O) _m -H, CH ₂
It represents CH ₂ CO ₂ H, n represents an integer of 10 to 3000, and m represents an integer of 1 to 20. ) A water-soluble chitosan derivative and an anionic surfactant represented by the formula (1) are contained as essential components. 2. The anionic surfactant is a fatty acid salt, phosphoric acid ester salt, alkylbenzene sulfonate, α-olefin sulfonate, paraffin sulfonate, alkyl sulfate, alkyl ether sulfate, N-acyl sarcosylate. Nate, N-acyl-N-methyl-β-alaninate, acyl glutamate, acyl aspartate,
Alkyl ether carboxylate, amide ether carboxylate, N-acyl-N-methyl taurine salt, acyl isethionate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, N-polyoxyethylene fatty acid ethanolamide sulfosuccinate, N- The polyoxyethylene fatty acid ethanolamide phosphate ester salt, N-polyoxyethylene fatty acid ethanolamide sulfate ester salt, and one or more selected from acyl peptides and acyl silk peptides. Hair cosmetics. 3. The average molecular weight of the water-soluble chitosan derivative is 1.
It is 10,000-500,000, The hair cosmetics of Claim 1 or Claim 2 characterized by the above-mentioned. 4. The hair cosmetic according to claim 1, wherein the water-soluble chitosan derivative is derived from chitin having a deacetylation degree of 30 to 100%. Fee.