JPH09100218A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a hair cosmetic giving excellent gloss, moist feeling and smooth touch to hair and having proper hairdressing property by mixing an amphoteric polymer and a polyoxyalkylene alcohol ether with a specific compound. SOLUTION: This cosmetic is prepared by mixing 0.05-15wt.% of an amphoteric polymer and 0.05-15wt.% of a polyoxyalkylene alcohol ether with 0.1-20wt.% of an organic acid and/or its salt. The amphoteric polymer preferably contains a unit of formula I (R1 is H or methyl; R2 , R5 are each a hydrocarbon; R3 , R4 are each H or a hydrocarbon; A is O or NH etc.). An especially preferable compound is expressed in formula II (R6 is R1 ; R7 is a hydrocarbon; n and m are integers). A compound of formula III (R8 is a hydrocarbon; p is an integer) is preferred as the polyoxyalkylene alcohol ether. The organic acids, for example, are citric acid, lactic acid, pyrrolidonecarboxylic acid, etc., and their salts are Na salt, Li salt, Mg salt, K salt and Ca salt. This hair cosmetic is free from oil stain of hair and has a good stretchability on hair and affinity to hair.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a hair cosmetic composition,
More specifically, it relates to a hair cosmetic composition using a gel composition composed of an amphoteric polymer, a polyoxyalkylene alcohol ether, an organic acid and / or a salt thereof.

[0002]

2. Description of the Related Art Heretofore, hair cosmetics have been used by solubilizing, emulsifying and dissolving oil components such as silicone oil, ester oil and hydrocarbon oil for the purpose of imparting gloss and smoothness to hair. In particular, silicone oils are widely used because of their low surface tension, good compatibility with hair, and good gloss. However, there is a limit to the oil content represented by silicone oil, and when used in a large amount or for a long time, there is a drawback that the squeaky feeling of the hair is increased and the hair becomes greasy.

Further, a moisturizing agent such as propylene glycol has been used in order to give the hair a feeling of being wet (wet feeling), but when it is blended in a large amount, it has the drawback of being sticky or inferior in sustainability. On the other hand, although a cationic surfactant is often used for the purpose of imparting smoothness, it does not give a desired gloss, and it is not preferable in terms of safety to add a large amount thereof. Furthermore, polyvinylpyrrolidone-based polymer as a high molecular compound for the purpose of hair setting,
An acidic polyvinyl ether polymer, an acidic acrylic polymer, a cationic polymer, or the like is blended, but these polymer compounds are excellent in fixing or setting force on hair, but do not satisfy gloss and smoothness.

[0004]

DISCLOSURE OF THE INVENTION As a result of intensive studies made by the present inventors to solve such a problem, a gel composition obtained by combining an amphoteric polymer, a polyoxyalkylene alcohol ether and an organic acid. Has been found to be extremely effective in solving the above problems, and has led to the completion of the present invention. That is, the present invention provides hair with excellent luster, wetness and fluffiness, a smooth feel, no greasiness on the hair, good spreadability and familiarity to the hair, and a proper setting force. The purpose is to provide cosmetics.

[0005]

The present invention comprises one or more amphoteric polymers, one or more polyoxyalkylene alcohol ethers, and one or more organic acids and / or salts thereof. It is characterized by being blended.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The hair cosmetic composition of the present invention can be prepared by mixing at least an amphoteric polymer, a polyoxyalkylene alcohol ether and an organic acid or a salt thereof, and mixing and stirring the mixture. The obtained hair cosmetic composition gives the hair excellent luster, wetness and fluffiness, gives a smooth feel, has no greasiness on the hair, spreads well on the hair, and has a proper setting force. It will be.

The composition of the hair cosmetic composition of the present invention will be described below.

The amphoteric polymer used in the present invention is a polymer soluble or dispersible in water or alcohol, preferably a polymer containing a unit represented by the following formula (I):
More preferably, it is a polymer represented by the following formula (II). By blending the amphoteric polymer having such a structure, the setting force of the hair cosmetic composition is further improved.

[0009] Here, R ₁ is a hydrogen atom or a methyl group, R ₂ and R ₅ are each an unsaturated hydrocarbon group having 1 to 4 carbon atoms, and R ₃ and R ₄ are each a hydrogen atom or a C 1 to 4 carbon atom. Saturated hydrocarbon group, A is oxygen atom or NH group or none, R ₆ is hydrogen atom or methyl group, R ₇ is saturated or unsaturated hydrocarbon group having 1 to 24 carbon atoms, and n and m are positive integers. Is.

The amphoteric polymer has a molecular weight of 50,000-
The range of 500000 is preferable, and the gloss and setting force of the hair are further improved in this range.

Further, in the above formula (II), n, m
Is preferably in the range of n: m = 80: 20 to 20:80, more preferably 80:20 to 50:50.
By setting the range of n: m = 80: 20 to 20:80,
The setting power of hair is further improved.

Further, it is more preferable that R ₇ has a saturated or unsaturated hydrocarbon group having 4 to 18 carbon atoms, whereby the setting force and smoothness are further improved.

In the hair cosmetic composition of the present invention, one or more of the above amphoteric polymers are selected and used.

As specific examples of the amphoteric polymer, commercially available products such as Yukaformer AM75R205 and Yukaformer AM75SM manufactured by Mitsubishi Yuka are preferably used.

In the hair cosmetic composition of the present invention, the content of the amphoteric polymer is preferably 0.05 to 15% by weight,
More preferably, it is 0.1 to 10% by weight. 0.05 ~
In the range of 15% by weight, the feeling in use and the setting force are further improved.

As the polyoxyalkylene alcohol ether used in the present invention, those represented by the following formula (III) are preferably used.

R ₈ (OCH ₂ CH ₂ ) _p OH (III) R ₈ is preferably a saturated or unsaturated hydrocarbon group having 3 to 36 carbon atoms, and a saturated or unsaturated hydrocarbon group having 12 to 22 carbon atoms. More preferred are groups. The presence or absence of branching of the hydrocarbon group and the number of unsaturated bonds do not matter. Furthermore, the number of moles p of ethylene oxide added is preferably 0 <p ≦ 12, and 3
It is particularly preferable that ≦ p ≦ 8. If the number p of moles of ethylene oxide is more than 12, the stability of the gel tends to be impaired.

In the present invention, one or more of the above polyoxyalkylene alcohol ethers are selected and used.

Specific examples of the polyoxyalkylene alcohol ether include polyoxyethylene (3) lauryl ether, polyoxyethylene (5) myristyl ether, polyoxyethylene (5) palmityl ether and polyoxyethylene (3) stearyl. Examples thereof include ether, polyoxyethylene (7) cetyl ether, polyoxyethylene (6) oleyl ether, polyoxyethylene (10) behenyl ether and the like.

The polyoxyalkylene alcohol ether content in the hair cosmetic composition of the present invention is preferably 0.05 to 15% by weight, more preferably 0.1 to 10% by weight. When it is 0.05% by weight or more, the setting force is further improved, and when it is 15% by weight or less, the sticky feeling is further suppressed and the usability is further improved.

Specific examples of the organic acid or salts thereof of the present invention include citric acid, lactic acid, pyrrolidonecarboxylic acid, and their sodium salts, lithium salts, magnesium salts, potassium salts and calcium salts. The blending amount of these is preferably 0.1 to 20% by weight, and more preferably 0.5 to 5% by weight. In this range, the soft feeling is further improved.

In addition to the above-mentioned essential components, the hair cosmetic composition according to the present invention has an oil content, a water-soluble polymer, a moisturizing agent, an oxidizing agent, depending on the purpose, within a quantitative and qualitative range that does not impair the effects of the present invention. Inhibitors, UV absorbers, surfactants, preservatives, vitamins,
Drugs such as hormones, fragrances, pH adjusters and the like, and additives generally used in hair cosmetics may be added.

[0023]

EXAMPLES The present invention will be described in more detail with reference to the following examples. However, the present invention is not limited to these. In addition, the compounding amounts shown in the following examples are all% by weight.

The hair cosmetic composition of the present invention was evaluated by the following evaluation methods.

(Evaluation method) 1) Setting force A bundle of hair having a length of 25 cm and a weight of 2 g was wetted with water, 0.5 g of a sample was applied, and the hair was wound on a rod having a diameter of 15 mm and naturally dried. After drying, the rod was removed from the curled hair bundle, and the hair was hung in a constant temperature and constant humidity box (28 ° C., 90% RH) for 1 hour to measure the curl length. The set holding force defined by the following formula was determined from the curl length (L ₁ ) immediately after being removed from the rod and the length (L ₂ ) after standing for 1 hour, and the setting force was evaluated according to the following criteria.

Set holding force = 100 × (25-L ₂ ) /
(25-L ₁ ) (%) ──────────────── Set holding power evaluation ──────────────── 90-100% ◎ 67 to 89% ○ 34 to 66% △ 33% or less × ─────────────────

2) Lustering effect on hair 1 g of a sample was applied to a hair bundle of 500 cm to 600 cm with a length of 15 cm, and rinsed by shaking in 300 ml of warm water at 40 ° C. (10
(0 cyc / min) was repeated twice, and the hair bundle was dried. Ten hairs were arbitrarily selected from this hair bundle, and the reflected light distribution of the hair with respect to the incident light was measured with a goniophotometer (GP-IR manufactured by Murakami Color Research Laboratory) to measure the glossiness (gloss) G of the hair. Was calculated by the following equation, and the effect of adding gloss to the hair of the sample was evaluated as follows.

G = s / d (s: specular reflection light amount, d: diffuse reflection light amount) ───────────────────────── Gloss G evaluation ─ ─────────────────────── 15 or more ◎ gloss effect large 10-15 ○ gloss effect medium 5-10 △ gloss effect small 5 or less × gloss No additional effect ────────────────────────

3) Sensory evaluation of smoothness, fluffiness, and wetness Thirty women aged 19 to 55 were selected as test subjects. The selected subjects washed their hair with a commercially available hair shampoo, applied 3 g to 15 g of a sample to the hair according to their length, and rinsed with water at about 40 ° C. At the time of rinsing, the smoothness, fluffiness and wetness of the hair after drying were evaluated according to the following criteria.

◎: 25 to 30 people answered good ○: 20 to 24 people answered good △: 10 to 19 people answered good ×: 9 people or less answered good

Example 1 In the formula (I), A is an oxygen atom and R is
An amphoteric polymer having a molecular weight of about 10,000 to 700,000 was synthesized by using ₁ as a methyl group, R ₂ as an ethylene group, R ₃ and R ₄ as a methyl group, and R ₅ as an ethylene group. Further, polyoxyethylene (10) behenyl ether was used as the polyoxyalkylene alcohol ether, and citric acid was used as the organic acid, and these were mixed with purified water to adjust the hair rinse. The contents of the amphoteric polymer, polyoxyalkylene alcohol ether and organic acid in the hair rinse are 2, 2, 1 respectively.
% By weight.

Further, an amphoteric polymer having a molecular weight of about 200,000 was synthesized in the same manner except that A of the formula (I) was removed from the NH group or the hair rinse was adjusted in the same manner.

For comparison, a hair rinse containing no amphoteric polymer (Comparative Example 1), a hair rinse containing no polyoxyalkylene alcohol ether (Comparative Example 2),
A hair rinse containing no organic acid (Comparative Example 3) was prepared in the same manner. A in each of the comparative examples is an oxygen atom.

Tables 1 and 2 show the results of evaluation of the prepared hair rinse by the above-described evaluation method.

[0035]

[Table 1]

[0036]

[Table 2] As is clear from Tables 1 and 2, by blending the amphoteric polymer and the polyoxyalkylene alcohol ether together, it exhibits excellent properties such as gloss, wet feeling, smoothness and setting power of the hair, and an organic acid is blended. As a result, it was found that the feeling of fluffiness is further enhanced and a high effect can be obtained even for amphoteric polymers having a wide range of molecular weights. Further, it is understood that the setting force is particularly excellent when the amphoteric polymer has a molecular weight of 50,000 to 500,000.

(Example 2) In the formula (II), A is
Oxygen atom, R₁Is a methyl group, R_TwoIs ethylene group, R _Three, R_Four
And R₆Is a methyl group, R_FiveIs a methylene group, R₇Lauryl
As a base, various m: n amphoteric polymers were synthesized. Also,
Polio as a polyoxyalkylene alcohol ether
Xyethylene (10) behenyl ether, as an organic acid
Using citric acid, mix these with purified water
Was prepared. In addition, the amphoteric polymer in the hair rinse, po
Containing lioxyalkylene alcohol ether and organic acid
The contents were 2, 2, and 1% by weight, respectively.

Table 3 shows the results of evaluation of these hair rinses by the above-described evaluation method.

[0039]

[Table 3] As is clear from Table 3, by setting the specific ratio of m: n, smoothness, gloss of hair, wet feeling, setting power, and fluffy feeling are increased.

(Examples 3 to 22, Comparative Examples 4 to 7) Table 4 to
The hair rinses having various blending compositions shown in 6 were mixed by stirring at 70 ° C. for 1 hour, and each hair rinse was evaluated by the above evaluation method. The results are also shown in Tables 4 to 6.

[0041]

[Table 4]

[0042]

[Table 5]

[0043]

[Table 6] 1) Amphoteric polymer A has the formula (II): R ₁ , R ₃ , R
₄ and R ₆ are methyl groups, R ₂ is ethylene group, R ₅ is methylene group, R ₇ is stearyl group, A is none, m: n = 65: 3
5, with a molecular weight of 60,000 (the same applies hereinafter).

2) The amphoteric polymer B has the following formula (II):
R ₁ , R ₃ , R ₄ and R ₆ are methyl groups, R ₂ is an ethylene group,
R ₅ is a methylene group, R ₇ is a stearyl group, A is none, m:
n = 50: 50 and molecular weight of 200,000 (the same applies hereinafter).

As is clear from Tables 4 to 6, Examples 3 to
It can be seen that the hair rinse of No. 22 is superior to the comparative example in all of the strength, setting power, wet feeling, smoothness, fluffy feeling and gloss.

(Examples 23 to 26) Hair cosmetics of various dosage forms were prepared with various compositions shown below, and Examples 1 to 22 were prepared.
When evaluated in the same manner as in 1. above, it was confirmed that all hair cosmetics were superior to conventional cosmetics in setting power, wet feeling, smoothness, fluffy feeling and gloss characteristics.

Example 23: Hair rinse Amphoteric polymer A 2.0 Polyoxyethylene (3) lauryl ether 3.0 Sodium lactate 1.5 Stearyl alcohol 2.0 Liquid paraffin 30.0 Paraben Suitable amount Purified water balance

Example 24: Hair Treatment Lotion Amphoteric Polymer B 2.0 Sodium lactate 1.5 Stearyl alcohol 2.0 Polyoxyethylene (12) lauryl ether 8.0 Silicone oil 3.0 Polyoxyethylene (60) Curing Castor oil derivative 0.5 Fragrance Suitable amount Ethanol 30.0 Purified water Residual

Example 25: Hair Treatment Foam Spray Amphoteric Polymer B 2.0 Polyoxyethylene (5) Lauryl Ether 2.0 Lactic Acid 0.5 Liquid Paraffin 3.0 Fragrance Suitable Quantity Ethanol 15.0 Purified Water Residual The spray of the example is for 90 parts of the above stock solution,
10 parts of propellant gas consisting of 10 parts of LPG was added and filled in a spray can.

Example 26 Hair Cream Amphoteric Polymer B 2.0 Citric Acid 0.1 Polyoxyethylene (5) Lauryl Ether 2.0 Vaseline 5.0 Beeswax 3.0 Stearyl Alcohol 5.0 Squalane 10.0 Flow Paraffin 30.0 Glycerol monostearate 0.5 Paraben Suitable amount Perfume Suitable amount Purified water Residual

[0051]

EFFECT OF THE INVENTION The present invention provides a hair cosmetic composition which imparts a smooth feel and a fluffy feeling to the hair, gives an excellent gloss and wet feeling, and has an appropriate setting force and is excellent in usability. It becomes possible.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location C08L 33/14 LHW C08L 33/14 LHW LJE LJE 33/24 LJV 33/24 LJV (72) Inventor Yoshihiko Fukuchi, 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Within Shiseido No. 1 Research Center (72) Inventor Kiyoshi Miyazawa, 1050, Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa (72) Inventor Hideo Nakajima 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Shiseido Research Center No. 1 Stock Company

Claims (9)

[Claims] 1. A hair cosmetic composition comprising an amphoteric polymer, a polyoxyalkylene alcohol ether, an organic acid and / or a salt thereof. 2. The hair cosmetic composition according to claim 1, wherein the amphoteric polymer contains a unit represented by the following formula (I). (However, R ₁ is a hydrogen atom or a methyl group, R ₂ and R ₅ are unsaturated hydrocarbon groups having 1 to 4 carbon atoms, R ₃ and R _{4 respectively.}
Are each a hydrogen atom or a saturated hydrocarbon group having 1 to 4 carbon atoms, A is an oxygen atom, an NH group or none) 3. The amphoteric polymer is represented by the following general formula (I
The hair cosmetic composition according to claim 1, which is represented by I). (However, R ₁ is a hydrogen atom or a methyl group, R ₂ and R ₅ are each an unsaturated hydrocarbon group having 1 to 4 carbon atoms, and R ₃ and R ₄ are each a hydrogen atom or a C 1 to 4 carbon atom. Saturated hydrocarbon group, A is oxygen atom or NH group or none, R ₆ is hydrogen atom or methyl group, R ₇ is saturated or unsaturated hydrocarbon group having 1 to 24 carbon atoms, and n and m are positive integers. Is) 4. In the amphoteric polymer, n: m = 8.
The hair cosmetic composition according to claim 3, wherein the hair cosmetic composition is in the range of 0:20 to 20:80. 5. The amphoteric polymer has a molecular weight of 50,000 to
It is a range of 500000, It is characterized by the above-mentioned.
The hair cosmetic composition according to any one of 4 above. 6. The hair cosmetic composition according to any one of claims 1 to 5, wherein the polyoxyalkylene alcohol ether is represented by the following general formula (III). _{R 8 (OCH 2 CH 2)} p OH (III) ( where, R ₈ includes a saturated or unsaturated hydrocarbon group with a carbon number 3 to 36, p is a positive integer.) 7. The R ₈ has a saturated or unsaturated hydrocarbon group having 12 to 22 carbon atoms.
Hair cosmetics described in. 8. The hair cosmetic composition according to claim 6, wherein the polyoxyalkylene alcohol ether satisfies 0 <p ≦ 12. 9. The organic acid and / or salt thereof is one or more selected from the group consisting of citric acid and salts thereof, lactic acid and salts thereof, pyrrolidonecarboxylic acid and salts thereof. Hair cosmetics given in any 1 paragraph of Claims 1-8.