JP2000178146A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic which shows an excellent application property to the hair, leaves a high residual feeling that conditioning components are kept when wet and gives a dry light finish free from greasy touch after dried by including a cationic surfactant, an oil agent and benzoic acid. SOLUTION: The hair cosmetic which is washed away to use is obtained by including (A) 0.5-8 wt.% of a cationic surfactant, (B) 0.5-15 wt.% of an oil agent and (C) 0.2-2 wt.% of benzoic acid or its salt, preferably in addition (D) 0.5 wt.% or below of an anionic surfactant. It is favorable that the weight ratio between the components A and B is 2:1 to 1:7, the component A is a quaternary ammonium salt of formula I (R1-R4 are each an 8-28C alkoxy or the like; Z- is a halogenic ion or the like) and the component B contains an aliphatic alcohol of formula R5-OH, a fatty acid of formula R6-COOH and a monoglyceride of formula II (R5 is a 12-22C alkyl or the like; R6 and R7 are each a 11-21C alkyl or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hair which is excellent in applicability to hair, has a high residual feeling of conditioning components when wet, and has a light and smooth finish with no stickiness after drying. Related to cosmetics.

[0002]

2. Description of the Related Art Conventionally, hair cosmetics to be used after being rinsed, such as rinses and treatments, are based on various oils. However, they have disadvantages such as reduced smoothness upon rinsing and stickiness after drying. .

[0003] In addition, in order to obtain a smooth and light finish after drying, the feeling of residual conditioning ingredients during rinsing is often sacrificed, and as a result, the feel may be poor, for example, the hair may become loose.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hair makeup which is excellent in coatability to hair, has a high residual feeling of conditioning components when wet, and has a light and light finish with no stickiness after drying. To provide a fee.

[0005]

Means for Solving the Problems The present inventors have found that when a cationic surfactant, an oil agent and benzoic acid or a salt thereof are combined in a specific ratio, the coatability on hair is excellent, and the conditioning component in wet condition is improved. The present inventors have found that a hair cosmetic that can be washed out and used can be obtained, which has a high residual feeling and has a light and smooth finish without stickiness after drying and a feeling of unity of hair.

The present invention comprises the following components (A), (B) and (C): (A) 0.5 to 8% by weight of a cationic surfactant, (B) 0.5 to 15% by weight of an oil agent, (C) The present invention provides a hair cosmetic composition containing 0.2 to 2% by weight of benzoic acid or a salt thereof and used after washing.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As the cationic surfactant of the component (A) used in the present invention, for example, the following general formula (1)

[0008]

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(Wherein at least one of R ¹ , R ² , R ³ and R ⁴ is substituted with an alkoxy group, alkenyloxy group, alkanoylamino group or alkenoylamino group having a total of 8 to 28 carbon atoms) Represents an alkyl group or an alkenyl group which may be substituted, the remainder being a benzyl group,
To 5 alkyl groups or hydroxyalkyl groups or a polyoxyethylene group having a total addition mole number of 10 or less,
Z ^- represents a halogen ion or an organic anion). Of these, the following equation (1 ′)

[0010]

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(Wherein, R ¹ represents an alkyl group having 12 to 22 carbon atoms, and Z ⁻ has the same meaning as described above), and more preferably cetyltrimethylammonium chloride and myristyltrimethylammonium chloride. .

The cationic surfactant of the component (A) comprises 1
More than one kind can be used, and it is preferable to add 0.5 to 8% by weight, particularly 0.5 to 5% by weight in the total composition, since a sufficient conditioning effect and coating feeling can be obtained.

Examples of the oil agent of the component (B) used in the present invention include aliphatic alcohols, fatty acids, monoglycerides, esters, hydrocarbons, silicones and the like.

Of these, aliphatic alcohols represented by the following formula (2), fatty acids represented by the following formula (3), and monoglycerides represented by the following formula (4) are particularly preferred.

[0015]

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(Wherein, R ⁵ represents an alkyl group or alkenyl group having 12 to 22 carbon atoms, and R ⁶ and R ^{7 each} have 1 carbon atom)
Represents an alkyl group or an alkenyl group of 1 to 21) Further, cetyl alcohol, myristic acid, behenic acid,
Oleic acid monoglyceride is preferred.

One or more types of oils of the component (B) can be used, and 0.5 to 15% by weight, especially 1 to 1% by weight in the total composition.
0% by weight, more preferably 1 to 5% by weight, is preferred in terms of applicability to hair and sensation during rinsing and after drying.

The weight ratio of component (A) to component (B) is (A) :( B) = 2: 1 to 1: 7, especially 2: 1 to 1
A ratio of 1: 5 is preferred because it has excellent coatability to hair and a good feel during rinsing.

The benzoic acid salt of the component (C) used in the present invention includes sodium benzoate, potassium benzoate, magnesium benzoate, ammonium benzoate and the like, with sodium benzoate being particularly preferred.

The component (C) benzoic acid or a salt thereof is incorporated in an amount of from 0.2 to 2% by weight, especially from 0.3 to 1% by weight in the whole composition, in terms of feel during rinsing and after drying. preferable. In particular, when the content is less than 0.2% by weight, the residual feeling upon rinsing is poor, and a dry and cohesive feeling after drying is not obtained.

The hair cosmetic of the present invention can further contain (D) an anionic surfactant, which is preferable because it can further reduce stickiness and obtain a smooth finish. Such anionic surfactants include, for example, alkyl benzene sulfonate, alkyl ether sulfate,
Alkenyl ether sulfate, alkyl sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, higher fatty acid salt, (amide) ether carboxylic acid type surfactant, α-sulfo fatty acid salt or ester, N-acyl amino acid Surfactant, phosphate ester surfactant, sulfosuccinate ester surfactant, polyoxyalkylene fatty acid amide ether sulfate, monoglyceride sulfate, acylated isethionate, alkyl glyceryl ether sulfate or alkyl glyceryl ether Sulfonates, alkyl or alkenyl amide sulfonates, alkanolamide sulfosuccinates, alkyl sulfoacetates, acylated taurates, N-acyl-N-carboxyethylglycine salts and the like.

Of these, alkyl ether sulfates,
Alkyl sulfates, alkane sulfonates, phosphate ester type surfactants and sulfosuccinate type surfactants are preferred, and particularly dodecyl sulfate, polyoxyethylene lauryl ether sulfate, polyoxyethylene sulfosuccinate, polyoxyethylene Oleyl ether phosphate is preferred.

The anionic surfactant of the component (D) comprises 1
More than one kind can be used, and it is preferable to add 0.5% by weight or less, particularly 0.01 to 0.1% by weight in the total composition.

The hair cosmetic composition of the present invention includes, for example, surfactants other than those described above, anionic polymers, nonionic polymers, cationic polymers, alcohols, powders, functional beads and capsules, metal chelating agents, Antioxidants, viscosity modifiers, preservatives, plant and animal extracts, anti-inflammatory agents, bactericides, anti-dandruff agents, antioxidants, pearling agents, ultraviolet absorbers, pH adjusters, pigments, fragrances, etc. can be appropriately compounded. .

The hair cosmetic of the present invention can be produced according to a usual method, and is applied as a hair cosmetic of a type to be rinsed and used, such as a rinse, a treatment, a conditioning and a hair pack.

[0026]

EFFECT OF THE INVENTION The hair cosmetic composition of the present invention has excellent coatability such as easy spread and adaptability to hair, has a high residual feeling of conditioning components when wet, is smooth, and has a sticky property after drying. It gives a smooth, light finish and good hair cohesion.

[0027]

EXAMPLES Example 1 Hair cosmetics having the compositions shown in Tables 1 to 3 to be used after washing were produced by a conventional method, and were easily applied at the time of application, the residual feeling and smoothness at the time of rinsing, and the stickiness after drying. The innocence and smoothness of unity were evaluated. The results are shown in Tables 1 to 3.

(Evaluation Method) A hair bundle of about 20 g was shampoo-washed, 2 g of each hair cosmetic was applied to the hair bundle, and the hair was completely blended, followed by rinsing with warm running water for a certain time. Next, sensory evaluation was performed by ten panelists on the following criteria for each item when towel drying and dryer drying were performed by a usual method. Calculate the average score and score 3.5 or more as ◎,
〜 For 2.5 to 3.4 points, Δ for 1.5 to 2.4 points, 1.4
Points and below are indicated by x. 4: Very good. 3: Good. 2: Neither can be said. 1; bad.

[0029]

[Table 1]

[0030]

[Table 2]

[0031]

[Table 3]

Example 2 A hair cosmetic having the following composition was produced by a conventional method.

[0033]

(Components) (% by weight) Cetyltrimethylammonium chloride 2 Cetyl alcohol 3 Sodium benzoate 0.4 Propylene glycol 2 Hydroxyethylcellulose (HEC Daicel SE850, manufactured by Daicel Chemical Industries, Ltd.) 0.2 Isopropyl palmitate 0.2 pH adjuster (citric acid / Na citrate) Suitable amount Perfume 0.2 Purified water Balance

Example 3 A hair cosmetic having the following composition was produced by a conventional method.

[0035]

[Table 5] (Ingredients) (% by weight) Myristyltrimethylammonium chloride 0.5 Cetyltrimethylammonium chloride 1.5 Myristic acid 1 Behenic acid 1 Oleic acid monoglyceride 0.2 Sodium benzoate 0.7 Propylene glycol 2 Ethyl diglycol ether 1 pH adjuster (citric acid / Na citrate) Appropriate amount Fragrance 0.2 Purified water Balance

Example 4 A hair cosmetic having the following composition was produced by a conventional method.

[0037]

(Component) (% by weight) Cetyltrimethylammonium chloride 2 Cetyl alcohol 3 Sodium benzoate 0.4 Polyoxyethylene (3) sodium lauryl ether sulfate 0.02 Alkane (C ₁₂ -C ₁₄ ) sodium sulfonate 0 .02 Glycerin 1 Medfoam oil 0.2 Jojoba oil 0.2 pH adjuster (citric acid / Na citrate) Appropriate amount Perfume 0.2 Purified water Balance

All of the hair cosmetics obtained in Examples 2 to 4 which are used after washing are excellent in coatability to hair, have a high residual feeling of conditioning components when wet, are smooth, and are sticky after drying. There was no smooth light finish and good hair cohesion.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hiroto Tanahmachi 2-1-3 Bunka, Sumida-ku, Tokyo F-term in Kao Corporation Research Laboratories (reference) 4C083 AA122 AC071 AC072 AC122 AC241 AC242 AC302 AC352 AC421 AC422 AC471 AC472 AC691 AC692 AC782 AC792 AC902 AD282 BB06 BB13 CC31 CC38 DD27 EE06 EE28

Claims (5)

[Claims] 1. The following components (A), (B) and (C): (A) 0.5 to 8% by weight of a cationic surfactant, (B) 0.5 to 15% by weight of an oil agent, (C) ) Hair cosmetics containing 0.2 to 2% by weight of benzoic acid or a salt thereof and used after washing. 2. The hair cosmetic according to claim 1, further comprising (D) an anionic surfactant in an amount of 0.5% by weight or less. 3. The weight ratio of component (A) to component (B) is:
(A): (B) = 2: 1 to 1: 7.
The hair cosmetic according to the above. 4. The cationic surfactant of the component (A) comprises:
General formula (1) (In the formula, at least one of R ¹ , R ² , R ³ and R ⁴ may be substituted with an alkoxy group, alkenyloxy group, alkanoylamino group or alkenoylamino group having a total of 8 to 28 carbon atoms. A good alkyl group or alkenyl group is shown, and the remainder is a benzyl group, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group, or
The hair cosmetic according to any one of claims 1 to 3, which is a quaternary ammonium salt represented by the following polyoxyethylene group, and Z ^- represents a halogen ion or an organic anion. 5. The oil agent of the component (B) comprises an aliphatic alcohol represented by the general formula (2), a fatty acid represented by the general formula (3), and a monoglyceride represented by the general formula (4). Wherein R ⁵ represents an alkyl group or an alkenyl group having 12 to 22 carbon atoms, and R ⁶ and R ⁷ represent an alkyl group or an alkenyl group having 11 to 21 carbon atoms. The hair cosmetic according to any one of claims 4 to 4.