JPH05320031A - Hair treatment composition - Google Patents

Abstract

(57) [Summary] [Structure] A hair treatment composition comprising the following (A) and (B). (A) A first agent comprising an aqueous solution containing 1 to 20% by weight of sulfite or hydrogen sulfite and having a pH in the range of 5 to 12, (B) General formula (1) AR ¹ -CO-R ² 1 to 20% by weight of one or more compounds having a carbonyl group in the molecule represented by -B (1), and 0.1 to 10% by weight of either bromate or hydrogen peroxide. Then
A second agent consisting of an aqueous liquid having a pH in the range of 3 to 10. [Effect] By using this hair treatment composition, the hair can be transformed into a desired shape in a short time and easily without unpleasant odor and damage to the skin and hair.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment composition, and more particularly to a hair treatment composition having no unpleasant odor and no damage to the skin or hair and excellent hair deformability.

[0002]

2. Description of the Related Art Generally, as a method for transforming hair into a desired shape (wavering or straightening), a first agent containing a sodium salt or ammonium salt of thioglycolic acid and sodium bromate are used. , A cold perm method with a second agent containing an oxidizing agent such as hydrogen peroxide has been used.

The method using this cold perm is characterized in that a firm wave of hair can be obtained in a short time at room temperature. However, this method has a drawback in that it requires skill to perform the treatment and perms cannot be easily performed in a general household because the hair and the scalp are adversely affected if the treatment method is mistaken.
Further, thioglycolic acid in the first agent has a problem that it has an unpleasant odor (so-called perm odor),
Furthermore, since thioglycolic acid has a hair deformability at alkaline pH, it is usually used in combination with an alkaline agent, but this alkaline agent adversely affects the hands of the practitioner and the scalp and hair of the practitioner, and When ammonia was used as the alkaline agent, it had a drawback of having an irritating odor.

Therefore, for the purpose of overcoming such drawbacks, a hair deformation treatment agent containing sulfite or bisulfite as a main ingredient has been used in recent years. Since this hair deformation treatment agent does not have an unpleasant odor, the treatment can be performed comfortably,
Further, the hair has the highest deformability near neutral pH, which is close to the pH of the skin, and thus has a characteristic of being less irritating to the practitioner's hands, the subject's hair, scalp, and the like.

However, in order to obtain a sufficient wave, it is necessary to wash the hair with sulfite or bisulfite after washing the hair, which causes pain to the practitioner and the subject, and has no advantage as a beauty technique. It has a problem, and when an oxidizing agent such as cold perm is used, elastic wave is not obtained and the hair is damaged by continuous use.

Further, in order to improve the hair deformability of the hair deformation treatment agent using sulfite or hydrogen sulfite,
A metal salt such as Ca ²⁺ salt or Ba ²⁺ salt is blended in the agent (JP-A-51-29234 and JP-A-51-29235).
), And alkylene dihalide and dihalodicarboxylic acid are compounded in the second agent (US Pat. No. 2,739,033).
No.), and the addition of dimaleimide into the second agent (US Pat. No. 280351), etc., but none of them has been satisfactory.

[0007]

Therefore, the hair treatment composition containing sulfite or bisulfite has the characteristics of no unpleasant odor and low irritation to skin and hair, and sufficient hair deformation. It has been desired to develop a powerful hair treatment composition.

[0008]

Under such circumstances, the present inventors have conducted diligent research and as a result, (A) contains 1 to 20% by weight of sulfite or bisulfite, and has a pH range of 5 to 12. 1 to 20% by weight of one or more compounds having a carbonyl group in the molecule represented by the general formula (1) described below, and a bromate or Contains 0.1 to 10% by weight of hydrogen peroxide and has a pH of 3
The present invention was completed by finding that a hair treatment composition comprising a second agent composed of an aqueous liquid in the range of 10 to 10 solves the above problems.

That is, the present invention provides the following (A) and
(B), (A) Sulfite or hydrogen sulfite 1 to 20 times
Aqueous liquid containing 5% by volume and having a pH in the range of 5 to 12
First agent, (B) general formula (1) A-R¹-CO-R²-B (1) [wherein R¹Is-(CH₂)_n-(N is a number from 1 to 5
R)²Is-(CH ₂)_m-(M is a number from 0 to 4
Is shown), A is a hydrogen atom, -OH, -CH₃, -N
H₂, -CHO, -COOM or -SO₃M (M is hydrogen source)
Child or an alkali metal atom), and B is the hydrogen source.
Child, -CH₂OH, -CH₃, -CH₂NH₂, -CHO,
-COA (A has the same meaning as above), -COOM or
Is -SO₃M (M has the same meaning as above)]
A type of compound having a carbonyl group in the represented molecule
Or 1 to 20% by weight of two or more kinds, and bromate or peracid
0.1 to 10% by weight of either one of hydrogen chloride, pH
A second agent comprising an aqueous liquid having a range of 3 to 10,
A hair treatment composition comprising:
is there.

The sulfite or bisulfite salt contained in the first agent of the present invention includes sodium, potassium,
Examples include salts of monoethanolamine, diethanolamine, triethanolamine, ammonium and the like.

In the present invention, one kind of sulfite or hydrogen sulfite may be used alone, or two or more kinds thereof may be used in combination, and the blending amount thereof is 1 to 20% by weight in the first agent.
(Hereinafter, simply indicated by%), but 2 to 10% is particularly preferable. If the blending amount is less than 1%, a sufficient wave is not formed, and if it exceeds 20%, there is a risk of causing hair damage.

Further, by blending the mercapto compound in the first agent of the present invention, the hair deformability in a short time can be improved. Specific examples of such mercapto compound, sodium thioglycolic acid, potassium, monoethanolamine, diethanolamine,
Examples thereof include salts such as triethanolamine and ammonium, cysteine and acetylcysteine.

In the present invention, the mercapto compounds may be used alone or in combination of two or more, and the compounding amount thereof is 0.5 to 10%, particularly 1 to 1 in the first agent.
It is preferably 5%. If the blending amount is less than 0.5%, the effect of the mercapto compound is not sufficient, and 10
If it exceeds%, there is a risk of causing significant damage to hair.

The pH of the first agent in the present invention needs to be adjusted within the range of 5-12. When the pH is less than 5, the sulfite becomes a sulfurous acid gas and volatilizes, and when the pH exceeds 12, not only the deformability of the hair becomes weak but also the hair is damaged by alkali.

The compound containing a carbonyl group in the molecule contained in the second agent of the present invention (hereinafter referred to as "carbonyl group-containing compound") is represented by the general formula (1). In the formula, specific examples of R ¹ include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group and a pentamethylene group, and examples of the alkali metal atom represented by M include a sodium atom and a potassium atom. .. Specific examples of particularly preferable carbonyl group-containing compounds include pyruvic acid or its alkali metal salt, levulinic acid or its alkali metal salt, acetone, dihydroxyacetone and the like.

In the present invention, these carbonyl group-containing compounds may be used alone or in combination of two or more, and the compounding amount thereof is 1 to 20% in the second agent.
However, 2 to 10% is particularly preferable. If the blending amount is less than 1%, the wave cannot be sufficiently fixed. Further, if it exceeds 20%, there is no particular problem, but the effect does not increase.

Examples of the bromate contained in the second agent of the present invention include alkali metal salts of bromate such as sodium and potassium.

In the present invention, only one of bromate and hydrogen peroxide is compounded in the second agent. When bromate is used, one of them may be used alone, or two or more of them may be used. Can also be used together. The amount of bromate or hydrogen peroxide is 0.1 to 10% in the second agent, but 0.5 to 5% is particularly preferable. If the content is less than 0.1%, a sufficient effect cannot be obtained, and if it exceeds 10%, hair damage due to oxidation is caused.

Furthermore, by blending the second agent of the present invention with a cationic surfactant, the hair deformability in a short time can be improved and good combability on the treated hair is obtained. It can give a feeling. As such a cationic surfactant, for example, the following general formula (2)
Alternatively, a quaternary ammonium salt represented by (3) may be mentioned.

[0020]

[Chemical 1]

[Wherein at least one of R ³ , R ⁴ , R ⁵ and R ⁶ is substituted with an alkoxy, alkenyloxy, alkanoylamino or alkenoylamino group having a total carbon number of 8 to 28] Is an alkyl or alkenyl group, and the remainder is a benzyl group, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group. R ⁷ has 2 to 2 carbon atoms
3 represents an alkylene group, X ⁻ represents a halogen ion or an organic anion, and p represents an integer of 1 to 20.

Among such cationic surfactants, the quaternary ammonium salt of the general formula (2) is preferable, and further preferable examples of the general formula (2) include, for example, the following general formulas (4) to (6). ) Branched quaternary ammonium salts represented by

[0023]

[Chemical 2]

(Wherein R ¹⁴ represents a methyl group or an ethyl group, and q represents an integer such that the total number of carbon atoms in the alkyl group is 8 to 16) and (b) CH.
_{3 - (CH 2) r -} ( wherein r is an integer of 7-15)
A mixture of straight chain alkyl groups represented by the formula (a) / (a) + (b) having a branching ratio (a) / (a) + (b) of 10 to 100%, wherein R ⁹ and R ¹⁰ are benzyl groups and have 1 to 3 carbon atoms. Represents an alkyl group or a hydroxyalkyl group, R ¹¹ and R ¹² represent an alkyl group having 2 to 12 carbon atoms,

[0025]

[Chemical 3]

S is an integer of 2 to 14, t is an integer of 3 to 11 and is a number such that the sum of s and t is 9 to 21, and X ^- represents a halogen ion or an organic anion.

The branched quaternary ammonium salt represented by the general formula (4) is usually synthesized by using, for example, an oxo alcohol having 8 to 16 carbon atoms as a raw material, and an example thereof is an alkyl derived from oxo alcohol. Examples thereof include a dialkyldimethylammonium salt having a group, a dialkylmethylhydroxyethylammonium salt, and a dialkylmethylbenzylammonium salt.

In the present invention, the branching ratio of R ^{8 in} the formula (4) is usually 10 to 100%, and particularly 1
It is preferably 0 to 50%. Further, those having a total carbon number of R ⁸ of ⁸ to 16 are used, but those having a constant distribution are preferable, and those having the distribution shown below are particularly preferable. C ₈ ~C _11: 5% or _{less, C 12: 10~35%, C} 13: 1
_{5~40%, C 14: 20~45%} , C 15: 5~30%,
C ₁₆ : 5% or less,

Specific examples of the branched quaternary ammonium salt include dialkyldimethylammonium chloride having an alkyl group having 8 to 16 carbon atoms and a branching rate of 10 to 50%. The branched quaternary ammonium salt represented by the general formula (5) is usually a Guerbet alcohol having 8 to 28 carbon atoms.

[0030]

[Chemical 4]

It is synthesized using as a raw material. Preferable examples of the branched quaternary ammonium salt include alkyl trimethyl ammonium salt having an alkyl group derived from Guerbet alcohol, alkyl dimethyl benzyl ammonium salt, dialkyl dimethyl ammonium salt,
Examples thereof include dialkylmethylhydroxyethylammonium salt and dialkylmethylbenzylammonium salt. Furthermore, among these, particularly preferred specific examples are:
Examples thereof include 2-decyltetradecyltrimethylammonium chloride, 2-dodecylhexadecyltrimethylammonium chloride, di-2-hexyldecyldimethylammonium chloride and di-2-octyldodecyldimethylammonium chloride.

Methyl branch No. 4 represented by the general formula (6)
Preferred examples of the primary ammonium salt are those in which the sum of s and t is 15.

Further, the general formulas (2), (3), (4),
Specific examples of X ⁻ , which is the counter ion of the quaternary ammonium salt represented by (5) and (6), include chlorine, iodine,
Halogen ions such as bromine; organic anions such as methosulfate, ethosulfate, metphosphate and etophosphate.

In the present invention, one type of cationic surfactant may be used alone, or two or more types thereof may be used in combination, and the compounding amount thereof is 0.1-40% in the second agent, particularly 1%. It is preferably from 10%. If the blending amount is less than 0.1, a sufficient effect cannot be obtained, and if it exceeds 40%, it is not preferable because excessive residual causes rather deterioration in feel.

The pH of the second agent in the present invention is not particularly limited, but it is preferably adjusted to the range of 3 to 10.
If the pH is lower than 3 or higher than 10, there is a risk of skin irritation due to acid or alkali, which is not preferable.

The first agent and the second agent of the hair treatment composition of the present invention can be produced by a conventional method, and each takes the form of an aqueous liquid. Here, the aqueous liquid refers to a liquid liquid in which water is used as a solvent, and if it is liquid, an aqueous solution,
Both emulsions and pastes are included.

It should be noted that the first and second agents of the hair treatment composition of the present invention may contain optional components usually used in cosmetics, as long as the effects of the present invention are not impaired. .. Such optional components include hydrochloric acid, phosphoric acid, citric acid, malic acid, succinic acid, lactic acid, propionic acid, butyric acid and other acidic substances and sodium hydroxide as pH adjusters,
Other basic substances such as monoethanolamine, diethanolamine, triethanolamine, basic amino acids, ammonia; hydrocarbons, liquid paraffin, wax, lanolin, lanolin derivatives, olive oil, hydrogenated castor oil,
Fats and oils such as esters; surfactants such as anionic surfactants, nonionic surfactants and amphoteric surfactants; cationic copolymers, anionic copolymers, nonionic copolymers, amphoteric copolymers Polymers such as polymers; silicone derivatives; keratin hydrolysates, collagen hydrolysates, elastin hydrolysates, animal protein hydrolysates such as casein; wheat protein hydrolysates such as gluazine and gluten and soy protein hydrolysates Solvents such as ethanol, ethylene glycol, benzyl alcohol, and benzyloxyethanol; urea; bactericides; preservatives; pearling agents; pigments; perfumes; thickeners; chelating agents and the like.

Treatment of hair using the hair treatment composition of the present invention thus obtained is carried out as follows. That is, after treating the hair with the first agent, the hair is left for a certain period of time and then treated with the second agent with or without rinsing. In order to further enhance the effect of the present invention, first, the hair is treated with the first agent and heated at 30 to 50 ° C. for 10 to 35 minutes, then rinsed to wash away the first agent on the hair, and then the second agent. It is preferable to treat with an agent and leave at room temperature for 5 to 20 minutes, then rinse with running water and dry.

[0039]

By using the hair treatment composition of the present invention,
The hair can be transformed into the desired shape in a short time and easily without unpleasant odor and damage to the skin and hair.

[0040]

The present invention will be further described with reference to examples, but the present invention is not limited thereto.

Example 1 A first agent and a second agent having the compositions shown in Tables 1 and 2 were prepared,
For each of them, the wave forming ability was evaluated according to the following test method. The results are shown in Table 1 and Table 2, respectively.

(Test method) (1) Hair used as a sample: untreated hair of healthy teenage women (2) Treatment method of hair: 10 15 cm hairs with a diameter of 1 cm
It was wound on a glass rod of No. 1 and treated with the first agent and the second agent by the method described below. Inventive products 1 to 4 and comparative product 1 50 μl of the first agent was applied to the hair bundles wound on the glass rod and left at 50 ° C. for 20 minutes, and then 50 μl of the second agent.
Was applied and left at room temperature for 20 minutes. Inventive Products 5 to 8 and Comparative Product 2 50 μl of the first agent was applied to the hair bundle wound around the glass rod and left at 50 ° C. for 10 minutes, and then 50 μm of the second agent.
1 was applied and left at room temperature for 10 minutes. (3) Evaluation method: In order to consider the reproducibility of the evaluation of each agent, hair treatment was performed 5 times each, and the average was taken as the evaluation value. The wave forming ability was measured and evaluated immediately after the treatment, after one shampoo, and after five shampoos. The wave forming ability is given by the following formula, where Lcm is the length of the hair when the treated hair is vertically hung in a wet state.

[0043]

[Equation 1]

The results are shown as ⊚ when the wave degree is 35 or more, ◯ when 25 or more, Δ when 15 or more, and × when less than 15.

[0045]

[Table 1]

[0046]

[Table 2]

As is clear from the results of Tables 1 and 2, the hair treatment composition of the present invention has an excellent wave forming ability.

Claims (4)

[Claims] 1. Containing 1 to 20% by weight of the following (A) and (B), (A) sulfite or bisulfite.
, The first agent comprising an aqueous liquid having a pH in the range of 5 to 12, (B) general formula (1) A-R¹-CO-R²-B (1) [wherein R¹Is-(CH₂)_n-(N is a number from 1 to 5
R)²Is-(CH ₂)_m-(M is a number from 0 to 4
Is shown), A is a hydrogen atom, -OH, -CH₃, -N
H₂, -CHO, -COOM or -SO₃M (M is hydrogen source)
Child or an alkali metal atom), and B is the hydrogen source.
Child, -CH₂OH, -CH₃, -CH₂NH₂, -CHO,
-COA (A has the same meaning as above), -COOM or
Is -SO₃M (M has the same meaning as above)]
A type of compound having a carbonyl group in the represented molecule
Or 1 to 20% by weight of two or more kinds, and bromate or peracid
0.1 to 10% by weight of either one of hydrogen chloride, pH
A second agent consisting of an aqueous liquid having a ratio of 3 to 10; 2. The hair treatment composition according to claim 1, further comprising 0.5 to 10% by weight of a mercapto compound in the first agent. 3. The hair treatment composition according to claim 1, further comprising 0.1 to 40% by weight of a cationic surfactant in the second agent. 4. A method for treating hair, which comprises treating the hair with the first agent according to claim 1 or 2, and then treating the hair with the second agent according to claim 1 or 3.