JPS62267220A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic having excellent effect in suppressing the smell of scalp and sweat and high durability of the effect, by compounding a cationic surfactant and a cyclodextrin to a cosmetic. CONSTITUTION:The objective cosmetic contains (A) a cationic surfactant, preferably a compound of formula I [R1 is 8-22C (hydroxy)alkyl; R2 and R3 are 1-3C (hydroxy)alkyl or benzyl; R4 is either R1 or R2; X is halogen or monoalkylsulfate group], a compound of formula II [2 or 3 of R5-R7 are 8-20C alkyl and remainder is methyl or (hydroxy)ethyl; n is 3-10; X2 is halogen, methylsulfate or ethylsulfate residue] or a compound of formula III (R8 is 10-22C alkyl; R9 is 2-22C alkyl) and (B) a cyclodextrin. The amounts of the components A and B in the whole cosmetic are 0.01-3(wt)% and 0.001-5%, especially 0.05-1.5% and 0.05-2%, respectively. The sum of the components A and B is 0.01-8%, especially 0.1-3.5%.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hair cosmetic that is highly effective in suppressing scalp and sweat odors and maintains this suppressing effect for a long time.

W rice trapping technique υ - 1 vL 英訳 - Trying to 1. Scalp odor and sweat odor are examples of odors that are generated from the head and cause discomfort to people. For this reason, it is desirable that hair cosmetics have the effect of suppressing scalp odor and sweat odor, and that this suppressing effect lasts for a long time. The reality was that no proposals had been made.

In this case, it has been known that cyclodextrin, which is used as a microcapsule material to seal in scents, taste substances, medicines, etc., has a deodorizing effect. It is described that it is effective in deodorizing bad odors such as "1" odor, and that by incorporating cyclodextrin, it is possible to obtain a deodorizing agent that is harmless to humans and animals, has no secondary drawbacks, and has no application restrictions. Also, when it comes to application to hair.

For example, JP-A-59-84809 and JP-A-59-84
No. 810 discloses that by blending compounds such as p-nitroacetophenone, methyl-β-naphthyl ketone, and cyclodextrin into the first agent of a permanent waving agent containing a mercapto compound as the main ingredient, a property unique to the first agent can be obtained. It is described that mercaptan odor is suppressed and that a large amount of mercaptan odor that occurs when the first agent is applied to hair is suppressed.

However, the deodorizing effect of cyclodextrin on scalp and sweat odor is not necessarily sufficient, and the effect is particularly poor in longevity. It could not be prevented.

The present invention provides -,1-i'L! 11 (This was created in consideration of the circumstances, and the purpose is to provide a hair cosmetic that has an excellent scalp tool and sweat odor suppressing effect, and has a long-lasting suppressive effect.

As a result of extensive research to achieve the objective described in Section 2, the present inventors have found that cationic surfactants, especially the following (1) ) to (3) When the active agent represented by the formulas and cyclodextrin are used together, the two act synergistically and a sufficient deodorizing effect on scalp odor and TF odor is obtained. It was discovered that this lasts for a long time, and this led to the present invention.

Therefore, the present invention provides a hair cosmetic characterized by containing a cationic surfactant and cyclodextrin.

The present invention will be explained in more detail below.

The first essential ingredient of the hair cosmetic of the present invention is a cationic surfactant. Here, there is no restriction on the type of cationic surfactant, but the following general formula (1) (wherein R□ has 8 to 2 carbon atoms)
2 alkyl group or hydroxyalkyl group, R2 and R
3 is an alkyl group having 1 to 3 carbon atoms, and 3 is an alkyl group having 1 to 3 carbon atoms, respectively.
represents a hydroxyalkyl group or a benzyl group. R4
represents any of the same substituents as R1 or R2.

X represents a halogen atom or a monoalkyl sulfate group having an alkyl group having 1 to 3 carbon atoms. ), a compound represented by the following general formula (2) (However, two or three of R,, R,, R, are alkyl groups having 8 to 20 carbon atoms, and the remaining are methyl groups, ethyl groups, or hydroxy groups. The ethyl group, TI, is an integer of 3 to 10, and x2 represents a halogen atom, a methyl sulfate group, or an ethyl sulfate group.

) and the following general formula (3) (however, R,
is an alkyl group having 10 to 22 carbon atoms, and R9 is an alkyl group having 2 to 2 carbon atoms.
2 shows an alkyl group. ) are particularly effective, and it is preferable to use one or more of these.

In this case, the compound of formula (1) above is specifically cetyltrimethylammonium chloride, c1-stearyltrimethylammonium chloride, stearyltrimethylammonium chloride, eicosyltrimethylammonium chloride, behenyltrimethylammonium chloride, eicosyldimethylammonium chloride , stearylbenzylammonium chloride, behenyldimethylbenzylammonium chloride, etc., and one or more of these can be preferably used.

In addition, specific examples of the compound of formula (2) include distearylpolyethenoxymethylammonium halide, civalmitylpolyethenoxyethylammonium halide, civalmitylpolyethenoxyhydroxyethylammonium, tristearylpolyethenoxyammonium halide, Examples include stearylpolyethenoxyethylammonium ethyl sulfate, and one or more of these can be preferably used.

Furthermore, as the compound of formula (3), specifically, Na-cocoyl-L-arginine ethyl ester-DL-pyrrolidone carboxylate, Na-cocoyl-L-arginine methyl ester-DL-pyrrolidone carboxylate, Na- Myristoyl-L-arginine ethyl ester-DL-pyrrolidonecarboxylate, Na-valmitoyl-L-arginine ethyl ester-DL-pyrrolidonecarboxylate, N(x-stearoyl-L-arginine ethyl ester-DL-pyrrolidonecarboxylate) etc., and one or more of these can be preferably used.

In the hair cosmetic of the present invention, the amount of the cationic surfactant to be blended is preferably 0.01 to 3% by weight, particularly 0.05 to 1.5% by weight, based on the total weight of the hair cosmetic. 0.0
If it is less than 1% by weight, the smoothness and softness of the finished hair may be poor, and if it exceeds 3% by weight, the hair may feel sticky.

The second essential component of the present invention is cyclodextrin,
Examples of cyclodextrin include α-cyclodextrin, β-cyclodextrin, cyclodextrin,
One or more selected from δ-cyclodextrin and cationized cyclodextrin can be preferably used.

In this case, the amount of cyclodextrin blended is preferably 0.001 to 5% by weight, particularly 0.05 to 2% by weight, based on the total cosmetic composition.

In addition, the combined ratio of cationic surfactant and cyclodextrin is 100:1 to 1:100 as a weight ratio,
In particular, the ratio is preferably 30:1 to 1:40. Also,
The total amount of the cationic surfactant and cyclodextrin is preferably 0.01 to 8% by weight, particularly 0.1 to 3.5% by weight.

The hair cosmetics of the present invention include hair blowing agents, hair tonics,
The hair cosmetic of the present invention may be prepared and applied as a foamy hair conditioner, etc., but in addition to the above-mentioned ingredients, the hair cosmetic of the present invention may also contain silicon derivatives, hydrocarbons, ester oils, higher fatty acids, higher alcohols, etc. depending on the type of cosmetic. Oil content such as lanolin derivatives, nonionic activators, anionic activators, amphoteric activators, vitamin A
t B b + B x , IC, D, E, H and their derivatives, protein hydrolysates, amino acids, animal and plant extracts, nonionic resins such as polyvinylpyrrolidone and its derivatives, methyl vinyl ether maleic acid butyl ester copolymers, etc. Anionic resins, amphoteric resins such as acrylic acid methacrylate copolymers, ultraviolet absorbers such as oxybenzone derivatives, cinnamic acid ester derivatives, a-
Cooling agents such as men1-ol, pepper oil, benzyl nicotinate, capsicum tincture, chlorhexidine gluconate, isopropylmethylphenol, parabens, irritants, bactericides, preservatives, fragrances, pigments, deterioration Known optional components such as inhibitors can be appropriately blended.

1. The hair cosmetic of the present invention has an excellent scalp odor and sweat odor suppressing effect due to the combination of a cationic surfactant and cyclodextrin, and this effect is highly durable. It is.

Next, Examples and Comparative Examples will be shown to explain the effects of the present invention more specifically, but the present invention is not limited to the following Examples.

[Examples 1 to 3. Comparative Examples 1 to 11] Examples 1 to 3 and Comparative Examples 1 to 3 having the compositions shown in Table 1
In addition to preparing 11 hair blowing agents, panel 2 examined the effects of these hair blowing agents on preventing scalp odor and sweat odor.
Sensory evaluation was conducted by 0 people based on the following criteria. The results are also listed in Table 1. Note that the blending amounts in Table 1 are weight %.

Effect on preventing scalp odor and sweat odor or its sustainability ◎: Very high.

○: High.

Δ: Slightly bad.

×: Bad.

From the results shown in Table 1, it is recognized that the blowing agent of the Example using a combination of a cationic surfactant and cyclodextrin is excellent in scalp odor and sweat odor prevention effect and its durability.

[Example 4] Hair blow agent POE (36) POP (36) 2. o,.

Butyl ether dimethyl polysiloxane 0.511 fragrance
Material Appropriate amount α-Cyclodex-1-phosphorus 0.5 〃Ethanol
25. Q++ [Example 5] Hair tonic setostearylmethyl Q, 2n ammonium chloride Q-menthol 0.3112-hexyldecanol 0.1 Fragrance
Appropriate γ-cyclodequinine 0.1! l ethanol
60.0/1 Purified water residual sound meter 100.0 I!
[Example 6] Foamy hair conditioner Setanol 1.0IIPOP (
17) Glyceryl ether l, QI+P OE (2)
Stearyl ether Q, 5 Horn fragrance
Appropriate amount of cationized cyclodextrin 1. Qu purified ice remaining total 100.0!
+4 parts of liquefied petroleum gas (1'A propellant) were added to 96 parts by weight of the stock solution having the above composition to prepare a foamy hair styling product.

The hair cosmetics of Examples 4 to 6 described above were excellent in preventing scalp odor and sweat odor, and were highly durable.

Claims (1)

[Scope of Claims] 1. A hair cosmetic comprising a cationic surfactant and cyclodextrin. 2. The cationic surfactant has the following general formula (1)▲mathematical formula,
There are chemical formulas, tables, etc.▼...(1) (However, R_1 is an alkyl group or hydroxyalkyl group having 8 to 22 carbon atoms, R_2 and R_3 are an alkyl group having 1 to 3 carbon atoms, or a hydroxyl group having 1 to 3 carbon atoms, respectively. Represents an alkyl group or a benzyl group.R_4 is R_1 or R_
Indicates any of the same substituents as 2. X represents a halogen atom or a monoalkyl sulfate group having an alkyl group having 1 to 3 carbon atoms. ) A compound represented by the following general formula (2) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(2) (However, two or three of R_5, R_6, and R_7 are alkyl groups having 8 to 20 carbon atoms. , the remainder is a methyl group, ethyl group or hydroxyethyl group, n is an integer from 3 to 10, X_
2 represents a halogen atom, a methyl sulfate group or an ethyl sulfate group. ) and the following general formula (3) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(3) (However, R_8 is an alkyl group having 10 to 22 carbon atoms, R_
9 represents an alkyl group having 2 to 22 carbon atoms. 2. The hair cosmetic according to claim 1, which is one or more compounds selected from the following compounds. 3. Cyclodextrin is α-cyclodextrin, β
-cyclodextrin, γ-cyclodextrin, δ-
The hair cosmetic according to claim 1 or 2, which is one or more selected from cyclodextrin and cationized cyclodextrin. 4. The hair cosmetic according to any one of claims 1 to 3, wherein the amount of the cationic surfactant is 0.01 to 3% by weight of the total amount. 5. The hair cosmetic according to any one of claims 1 to 4, wherein the amount of cyclodextrin blended is 0.001 to 5% by weight of the total amount.