JP2003055167A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a hair cosmetic capable of giving excellent slipperiness and soft feeling to the hair during a period starting from applying the cosmetic to the hair to ending by washing (rinsing) to eliminate it away, capable of giving excellent softness and dewy feeling to the hair after dried, capable of preventing added solid fine particles from causing a rough feeling and hair fly due to brushing frictional static electrification when the hair is rinsed and after it is dried, and capable of compatibilizing characteristics of the solid fine particles with comfortable use feelings. SOLUTION: This hair cosmetic contains (A) a tertiary ammonium salt: R<1> -N<+> (CH3 )3 .X<-> , (B) a higher alcohol: R<2> -OH [R<1> and R<2> are each a 12-28C aliphatic hydrocarbon residue, provided that R<1> in the component (A) and R<2> in the component (B) may have each carbon number distribution, the carbon number of the R<1> mostly contained in the component (A) is equal to that of the R<2> mostly contained in the component (B), and the R<1> mostly contained in the component (A) and the R<2> mostly contained in the component (B) are each contained in an amount of 70-100 wt.%; and X<-> is an anion], and (C) the solid fine particles slightly soluble in water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair conditioner containing a poorly water-soluble solid powder, a hair conditioner, a hair treatment such as a rinse-type hair treatment, and the like.
More specifically, it is excellent in slipperiness and softness, softness after drying and moisturizing from application to the hair to washing (rinsing), and also when rinsing from a water-insoluble solid powder and after drying. The present invention relates to a hair cosmetic that can suppress the feeling of roughness and hair fly caused by brushing triboelectric charging, and has both the characteristics of powder and a comfortable feeling of use.

[0002]

2. Description of the Related Art Generally, antibacterial powders for preventing dandruff, itchiness, sweat, and bad odors derived from sebum, and poorly water-soluble solid powders such as silicone powders for giving a dry finish, are used for hair rinses and the like. It is contained in a wash-out type hair cosmetic. However, with such hair cosmetics,
Due to the blended poorly water-soluble solid powder, there is a problem that rough feeling during rinsing and after drying and charging due to brushing friction in a dry environment cause hair fly and the like. Cationic surfactants, silicone oils, and the like are added to these hair cosmetics, and it is generally accepted that the prevention of electrification and the improvement of smoothness are recognized. However, when a poorly water-soluble solid powder is added, it is not always necessary. not enough. For this reason, it was difficult to mix the poorly water-soluble solid powder in an amount sufficient to expect its original effect.

Therefore, it has been desired to provide a hair cosmetic having both a sufficient effect of the poorly water-soluble solid powder and a comfortable feeling of use.

[0004]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In a hair cosmetic containing a poorly water-soluble solid powder, the present inventor has found that if a cationic surfactant having a specific relationship and a higher alcohol are used in combination, the poorly water-soluble solid powder is used. It has been found that the electrostatic charge due to brushing friction originating in the body can be suppressed, and that an excellent feeling of use can be obtained during rinsing and drying, and the hair cosmetics satisfying the above requirements have been successfully developed.

That is, the present invention provides the following components (A), (B) and
It is intended to provide a hair cosmetic containing (C). (A) Quaternary ammonium salt represented by the general formula (1)

[0006]

[Chemical 2]

(B) Higher alcohol represented by the general formula (2) R ² --OH (2)

(C) Hardly water-soluble solid powder [in the general formulas (1) and (2), R ¹ and R ² represent an aliphatic hydrocarbon group having 12 to 28 carbon atoms, and X ⁻ represents an anion. Show. However, the above components (A) and (B) may have a distribution in the number of carbon atoms of R ¹ and R ² , and the maximum content of R ¹ and the component (B) in the component (A). Among them, R ² of the maximum content compound has the same carbon number, and the content ratios of these compounds are both 70 to 100% by weight. ]

R ¹ of the quaternary ammonium salt represented by the general formula (1), which is the component (A), has 12 to 28 carbon atoms.
It is preferably 6 to 24, especially having 22 carbon atoms, and a linear or branched alkyl group or alkenyl group, particularly a linear alkyl group is preferable. The carbon number distribution of R ¹ is preferably narrow,
That is, the content of the compound contained most in the component (A) needs to be 70 to 100% by weight, preferably 80 to 1
It is 00% by weight. The anion ^X?, Chloride ions, halide ions such as bromide ion, methosulfate ions, ethosulfate ion, methemoglobin phosphate ions, ethoxy phosphate ions, organic anions such as methemoglobin carbonate ions include , Halide ions are preferred, and chloride ions are particularly preferred.

Specific preferred examples of the component (A) include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, aralkyltrimethylammonium chloride, behenyltrimethylammonium chloride and the like, and particularly, a slippery feel during application and a smooth feel during rinsing. From the point of view, behenyltrimethylammonium chloride is preferable.

The component (A) may be used in combination of two or more kinds, but when used in combination, the component (A) as a whole must satisfy the above conditions. The component (A) is preferably contained in the hair cosmetic composition of the present invention in an amount of 0.05 to 10% by weight, more preferably 0.1 to 10% by weight.
.About.10 wt.%, Particularly 0.3 to 5 wt.% Is preferred.

R ² of the higher alcohol represented by the general formula (2), which is the component (B), has 12 to 28 carbon atoms, but has 16 to 2 carbon atoms.
4, particularly preferably having 22 carbon atoms, linear or branched alkyl or alkenyl groups, particularly linear alkyl groups are preferred. The carbon number distribution of R ² is preferably narrow, that is, the content ratio of the compound contained most in the component (B) is 7
It is required to be 0 to 100% by weight, preferably 80 to 100% by weight.

Specific preferred examples of the component (B) include cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-octyllauryl alcohol, 2-hexyldecyl alcohol, isostearyl alcohol, carnervir alcohol (tetracosanol). Etc., and behenyl alcohol is particularly preferable.

The component (B) may be used in combination of two or more kinds, but when used in combination, the component (B) as a whole must satisfy the above conditions. The component (B) is preferably contained in the hair cosmetic composition of the present invention in an amount of 0.05 to 30% by weight, and more preferably 0.5 to 30% by weight.
It is preferably contained in an amount of 20 to 20% by weight, particularly 1 to 10% by weight.

In the present invention, R ¹ and R ² of the compounds occupying the maximum contents in the components (A) and (B) are as follows:
It must have the same carbon number. Further, R ¹ and R ² are preferably straight-chain alkyl groups from the viewpoint of further excellent effects such as smoothness and softness from application to the hair to washing (rinsing), The carbon number is preferably 16 to 24, particularly 22.

The weight ratio of the components (A) and (B) is 1/1 to 1
/ 6, particularly preferably 1/2 to 1/5. Also with component (A)
The total content of (B) is 0.1 to 35% by weight, especially 1 to 20% by weight.
Is preferred.

In the hair cosmetic composition of the present invention, a quaternary ammonium salt other than the component (A) is further added to the following general formula (3):

[0018]

[Chemical 3]

[Wherein R³And R^FourEach independently hydrogen source
Child, a linear or branched alkyl group having 2 to 28 carbon atoms, or
Represents a benzyl group, except when it simultaneously becomes a hydrogen atom.
Ku. X ^-Represents the same anion as in general formula (1). ]]
When a compound containing
It is preferable because the smoothness after drying is improved and it is easy to use. one
R in general formula (3)³And R^FourWhen is an alkyl group, charcoal
It is preferably an alkyl group having a prime number of 8 to 24.

The quaternary ammonium salt (3) may be used in combination of two or more kinds, and the content thereof is the same as that in the hair cosmetic composition of the present invention.
0.01 to 5% by weight, particularly 0.05 to 1% by weight is preferable.

As the poorly water-soluble solid powder of the component (C), metal pyrithiones represented by pyrithione zinc, octopirox, selenium disulfide and the like are antibacterial powders (especially those showing antidandruff properties); silicone. Resin powders such as powders and polytetrafluoroethylene powders that give a dry feeling to hair; suspending agents such as styrene latex and mica powders.

The poorly water-soluble solid powder may be used in combination of two or more kinds, and the content thereof is 0.01 to 0.01 in the hair cosmetic composition of the present invention.
30% by weight, especially 0.1 to 15% by weight is preferred.

When the hair cosmetic composition of the present invention is produced by emulsifying at a temperature lower than its phase transition temperature and higher than the melting point of the component (B), it feels smooth and soft during the rinsing after application to the hair. The excellent effect and stability are further improved, which is preferable. When setting the emulsification temperature, a composition (component (A) or (B)) obtained by emulsifying only the amounts of the components (A) and (B) blended in the hair cosmetic as the phase transition temperature of the hair cosmetic is set.
In the case of two or more kinds, the phase transition temperature of the composition obtained by emulsifying the most compounded one can be approximately used. When two or more kinds are used as the component (B), the melting point of the higher alcohol to be blended most can be approximately used as the melting point of the component (B). Emulsification
Propeller agitation, homomixer agitation, static mixer agitation, etc. are preferably used, and the emulsification time is preferably continued with agitation and mixing until the poorly dispersed substance such as crystals of component (B) is dissolved.

The pH (25 ° C.) of the hair cosmetic composition of the present invention is 2 to
The stability of 10 is preferable, and 3 to 8 is particularly preferable. Organic acids such as citric acid and lactic acid, and inorganic acids can be used to adjust the pH. Further, the hair cosmetic composition of the present invention can be in the form of an aqueous solution, an ethanol solution, an emulsion, a suspension, a gel composition, a liquid crystal composition, a solid matter, an aerosol, and the like.
Emulsions are most preferred. The present invention is a hair rinse, a hair conditioner, a hair treatment, a hair pack, a hair cream, a conditioning mousse, a hair mousse,
It can be applied to hair spray, shampoo, leave-on treatment, etc. In particular, it is suitable as a hair cosmetic that is used after being rinsed off, such as a hair rinse, a hair conditioner, and a hair treatment.

[0025]

[Examples] Table 1 shows the components (A) and (B) used in the following examples.

[0026]

[Table 1]

Example 1 Anti-dandruff hair rinse The anti-dandruff hair rinses shown in Table 2 were prepared and evaluated.

(Manufacturing Method) Half the amount of water and components other than zinc pyrithione were emulsified with stirring at a predetermined temperature, the remaining water and zinc pyrithione were added, and the mixture was stirred until it reached room temperature to prepare an anti-dandruff hair rinse.

(Evaluation Method) (1) Feeling of Use The anti-dandruff hair rinse was actually used by 5 skilled panelists who have experience in developing hair cosmetics, and a sensory evaluation was conducted in 5 levels (5: good to 1: bad). From the average of 5 people, 4 or more:
◎ 3 or more and less than 4: ○, 2 or more and less than 3: △, less than 2: ×
Is shown in Table 2.

(2) Antistatic Effect Hair tresses (100 g, width 5 cm) were treated with anti-dandruff hair rinse and left for 12 hours at 20 ° C. and 30% RH in temperature and humidity, and then brushed 10 times before and after brushing. The width of the tresses was compared to evaluate the degree of hair fly caused by static electricity. Increase in width by 20 compared to before brushing
Less than%: ⊚, 20% or more and less than 30%: ◯, 30% or more and less than 40%: Δ, 40% or more: × are shown in Table 2.

(3) Anti-dandruff effect 10 panelists who are highly aware of dandruff were allowed to use shampoo / rinse containing no anti-dandruff agent for 1 week in advance, and the condition of the scalp was observed. And Then, for another week, use only the anti-dandruff hair rinse of Table 2,
The effect of improving dandruff was evaluated. The evaluation clearly has an improving effect: 5, slightly improving effect: 4, no change: 3,
Slightly worse: 2, worse: There were 5 grades, from the average of 10 panelists: 4 or more: ◎, 3 or more and less than 4: ○,
It is shown in Table 2 as 2 or more and less than 3, Δ: less than 2, and x.

[0032]

[Table 2]

Example 2 Hair rinse The hair rinses shown in Table 3 were prepared and evaluated.

(Manufacturing Method) Half of the water and components other than the silicone powder were stirred and emulsified at a predetermined temperature, the remaining water and the silicone powder were added, and the mixture was stirred until it reached room temperature to prepare a hair rinse.

(Evaluation method) The same method as in Example 1 was carried out and shown in Table 3.

[0036]

[Table 3]

[0037]

EFFECTS OF THE INVENTION The hair cosmetic composition of the present invention is excellent in slipperiness, softness, softness after drying and moistening from application to the hair to washing (rinsing). It is a hair cosmetic composition that can suppress the feeling of roughness after rinsing and dryness after drying and hair fly caused by frictional electrification by brushing, and have both the characteristics of powder and a comfortable feeling of use.

Claims (3)

[Claims] 1. A hair cosmetic composition comprising the following components (A), (B) and (C). (A) Quaternary ammonium salt represented by the general formula (1) (B) Higher alcohol represented by general formula (2) R ² —OH (2) (C) Water-insoluble solid powder [in general formulas (1) and (2), R ¹ and R ² are carbon atoms 12 to 28 are aliphatic hydrocarbon groups, and X ⁻ is an anion. However, the above components (A) and (B) may have a distribution in the number of carbon atoms of R ¹ and R ² , and the maximum content of R ¹ and the component (B) in the component (A). Among them, R ² of the maximum content compound has the same carbon number, and the content ratios of these compounds are both 70 to 100% by weight. ] 2. The hair cosmetic composition according to claim 1, wherein the poorly water-soluble solid powder of component (C) has antibacterial properties. 3. The hair cosmetic composition according to claim 1, wherein the hair cosmetic composition is emulsified at a temperature lower than the phase transition temperature of the hair cosmetic composition to be produced and at a temperature higher than the melting point of the component (B).