JPS63313717A - Chemically treating agent for hair - Google Patents

Abstract

PURPOSE:To obtain the titled treating agent capable of effectively preventing inflammation on scalp, fallen hair and damage of hair and of providing hair with good touch, containing a methylsiloxane polymer having a polymerization degree in a specific range. CONSTITUTION:The titled treating agent containing 0.1-20wt.% preferably 0.3-15wt.% methylsiloxane polymer having >=1,000, preferably 3,000-10,000 polymerization degree. Further addition of a methylsiloxane and/or cyclic methylsiloxane having low polymerization degree shows more secure improved effects and blending of 0.1-20wt.%, especially 0.5-5wt.% cationic cellulose and/or polyvinyl pyrrolidone are further more effective. Addition of odd- numbered carbon chain fatty acid derivative and/or odd-numbered carbon chain alcohol derivative is effective for suppressing inflammation of scalp. The treating agent is prepared as permanent wave agent, hair coloring agent or bleaching agent and used.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to chemical hair treatment agents such as permanent waving agents, hair coloring agents, and bleaching agents. The present invention relates to a chemical treatment agent for hair that can impart a good feel to hair.

Conventional techniques 11 and 4 problems that Ming tries to solve Conventionally,
Permanent waving agents include thioglycolic acid,
A liquid consisting of a first liquid containing a mercapto compound such as L-cysteine or a salt thereof as a main component and a second liquid containing an oxidizing agent such as potassium bromate, thorium bromate, or hydrogen peroxide as a main component is used. Also, as a hair color,
A dye made of an oxidizing dye made of an aromatic amine such as paraphenylene diamine or a derivative thereof and an oxidizing agent such as hydrogen peroxide is used.

However, the above-mentioned permanent waving agents and hair colors are highly irritating to the scalp and hair, causing scalp inflammation and hair loss.

This irritation can be caused by the reducing agent contained in the first liquid and the surfactants and alkalis contained as auxiliary agents in the case of permanent waving agents, and the auxiliary agents in the case of hair coloring. This is thought to be caused by surfactants, alkalis, oxidizing agents, etc.

For this reason, various proposals have been made to improve the above-mentioned drawbacks of these chemical treatment agents for hair, but none have yet been found to be satisfactory, and further research and technology in this field is required. Development is desired.

The present invention was developed in view of the above circumstances, and is capable of preventing scalp inflammation and hair damage caused by chemical treatment of hair, suppressing hair loss from the scalp, and improving the feel of the hair. The purpose of the present invention is to provide a chemical treatment agent for hair.

Means and Action for Solving the Problems In order to achieve the above object, the present inventors have made extensive studies to prevent the occurrence of scalp inflammation, hair loss, etc., which are the shortcomings of conventional chemical hair treatment agents. As a result, the degree of polymerization was 1
It has been found that scalp inflammation, hair loss, and hair damage can be effectively prevented by incorporating a methylsiloxane polymer of 000 or more.

In addition, when a linear or cyclic methylsiloxane with a low degree of polymerization is used in combination with this methylsiloxane polymer having a degree of polymerization of 1000 or more, or when cationized cellulose or polyvinylpyrrolidone is used in combination, the above-mentioned purpose can be achieved more effectively. The present invention was based on the discovery that the feel of the hair was further improved. Therefore, the present invention provides a chemical treatment agent for hair walls characterized by containing a methylsiloxane polymer with a degree of polymerization of 1000 or more. This is what we provide.

The present invention will be explained in more detail below.

The methylsiloxane polymer blended into the hair chemical treatment agent of the present invention can be represented by the following general formula (3). Here, n in the formula is a number of 1000 or more, preferably 3000 to 10000. Methylsiloxane polymers having a degree of polymerization of less than 1000 cannot achieve the object of the present invention.

Further, the amount of the methylsiloxane polymer blended is not particularly limited, and is appropriately selected depending on the type of treatment agent, etc., but is preferably in the range of 0.1 to 20% by weight of the entire composition, and more Preferably it is in the range of 0.3 to 15% by weight. If the amount is less than 0.1% by weight, combability may become difficult, while if it exceeds 20% by weight, the hair may feel sticky.

The chemical treatment agent for hair of the present invention may contain a methylsiloxane represented by the following general formula (1) and/or a cyclic methylsiloxane represented by the following general formula (2) together with the above-mentioned methylsiloxane polymer. preferable. By using this low-molecular-weight methylsiloxane and/or cyclic methylsiloxane in combination with the above-mentioned methylsiloxane polymer with a degree of polymerization of 1000 or more, it can prevent scalp inflammation and hair damage, prevent hair loss, and improve the feel of hair. The action and effect of this will become more reliable.

Further, in order to achieve the object of the present invention more effectively, it is preferable to blend cationized cellulose and/or polyvinylpyrrolidone. The cationized cellulose preferably has a molecular weight of 30,000 to 2,000,000, for example, an ether of hydroxyethylcellulose and glycidyltrimethylammonium chloride (
Product name: Leogard G, manufactured by Lion Corporation, Polymer JR-30M-125 and Same 400. (manufactured by Union Carbide Co., Ltd.), and the polyvinylpyrrolidone preferably has a molecular weight of 10,000 to 1,000,000, and its trade name is PVP K-30, PVP
Examples include K-90 (uN also manufactured by GAF).

In addition, when blending cationized cellulose and/or polyvinylpyrrolidone, the blending amount is preferably 0.1 to 20% by weight, more preferably 0.5 to 5% by weight.
Weight%. If the blending amount is less than 0.1% by weight, the effect commensurate with the blending of these components will not be achieved, and
If it exceeds % by weight, excessive adhesion to the hair may result in poor feel of the hair.

Furthermore, odd carbon chain length fatty acid derivatives and/or odd carbon chain length alcohol derivatives can also be blended into the treatment agent of the present invention, and these blends are preferred in terms of suppressing scalp inflammation.

Examples of the odd carbon chain length fatty acid derivatives and odd carbon chain length alcohol derivatives include the following.

Monoglycerides represented by the following general formula CI) or (II), (1) (II) (wherein, R represents a linear organic group having an even number of carbon chain lengths) the following general formula [■] or [IV] Diglycerides represented by (m) (IV) (wherein R and R2 are chain organic groups, and at least one of them represents a straight chain organic group having an even carbon chain length) the following general Triglyceride (V) represented by the formula [■] (wherein, R11R2 and R3 are chain organic groups, and at least one of them represents a straight chain organic group having an even carbon chain length): Fatty acid salt represented by general formula (VI), (Vl) (RCOO) nM (where R is a linear organic group having an even carbon chain length, M
is a metal atom, n is an integer corresponding to the valence of M) Ester represented by the following general formula [■], [■] RCOOR' (However, R is a linear organic group having an even number of carbon chain lengths) ,R
' represents a monovalent or divalent alcohol residue, an amine residue, a polyoxyethylene residue, a sorbitan residue, or a sucrose residue) The primary amide represented by the following general formula [■], [■] RCONR 'R' (where R is a linear organic group with an even carbon chain length, R
', R'' represents hydrogen or an organic group) following general formula (IK)
A secondary amide represented by (IK) (wherein R1 and R2 are organic groups, at least one of them is a linear organic group having an even carbon chain length, and R' is hydrogen or an organic group). A tertiary amide represented by the following general formula (X), (X) (wherein R1, R2 and R3 are organic groups, and at least one of them is a linear group having an even carbon chain length) (represents a chain organic group) dibasic acids and their salts represented by the following general formula [also], (X
I) HOOCRC○○H (However, R represents a linear organic group having an odd carbon chain length) A sterol ester represented by the following general formula [separate], (However, R has an even carbon chain length) A phospholipid represented by the following general formula [bi] (represents a straight-chain organic group), [mawari] (where R1 and R2 are chain organic groups, and at least one of them is an even-numbered carbon chain) (X represents a choline residue, an ethanolamine residue, a serine residue, or an inositol residue) A phosphatidic acid represented by the following general formula: R and R2 are chain organic groups, at least one of which represents a straight chain organic group having an even number of carbon chain lengths), and sphingolipids represented by the following general formula [X■] , (XV) (wherein R is a linear organic group having an even carbon chain length,
(X represents a sugar residue, a phosphoric acid residue, or an amine base residue) An alcohol ester represented by the following general formula (XVI).

[XVI) R1-0-COR (However, R1-0 represents an odd-numbered chain alcohol residue, -COR represents a fatty acid residue) Alcohol ether represented by the following general formula [X■], [X■] Rnee 0 -R (However, R - represents an odd-numbered chain alcohol residue, and R represents an organic group) These odd-numbered carbon chain length fatty acid derivatives and/or odd-numbered carbon chain length alcohol derivatives are blended into the chemical treatment agent for hair of the present invention. If so, the blending amount is preferably 0.1 to 20% by weight, more preferably 0.5 to 10% by weight.

If the blending amount is less than 0.1% by weight, the effect commensurate with the blending will not be sufficiently exhibited, while if it exceeds 201t - weight%, the hair may be coated in excess and the feel of the hair may be deteriorated.

The chemical treatment agent for hair of the present invention is prepared and used as a permanent waving agent, hair coloring agent, bleaching agent, etc., and appropriate ingredients are added to the treatment agent of the present invention depending on the purpose of use. 5 For example, as a permanent waving agent, a component such as the above-mentioned methylsiloxane polymer may be used as a permanent waving agent, which is composed of a first liquid containing a mercapto compound as a main component and a second liquid containing an oxidizing agent as a main component. They can be incorporated into one or both of the methods. In this case, the mercapto compound which is the main component of the first liquid of this permanent waving agent includes thioglycolic acid or its salts, cysteine or cysteine hydrochloride, thiolactic acid or its salts, thiopropionic acid or its salts, thioacetic acid or Salts thereof, mercaptopolysiloxane, thioglycolic acid glycerin ester, and the like can be mentioned. In addition, the first liquid may include, for example, ammonia, monoethanolamine,
pH adjusters such as jetanolamine and caustic soda, surfactants such as anionic surfactants, cationic surfactants, nonionic surfactants and amphoteric surfactants, higher alcohols, liquid paraffin, oils such as lanolin, propylene glycol, Wetting agents such as butylene glycol, glycerin, pyrrolidone carboxylic acid, waving force enhancers such as urea and ammonium thiocyanate, coloring agents, chelating agents,
Flavors and other substances may be added as appropriate. In addition, examples of the oxidizing agent for the second liquid include bromates, perborates, etc.
An H adjuster and various additives as explained in the above first liquid may be appropriately blended.

In addition, hair color can be made of an oxidizing dye made of an aromatic amine such as paraphenylenediamine or its derivative, and an oxidizing agent such as hydrogen peroxide. In the two-part type, components such as methylsiloxane polymers can be incorporated into one or both of the methods.

Effects of the Invention It is possible to effectively prevent inflammation of the scalp, damage to the hair, and hair loss from the scalp due to chemical treatment of hair, and also to improve the feel of the hair.

EXAMPLES Hereinafter, the present invention will be specifically explained by showing examples and comparative examples, but the present invention is not limited to the following examples.

It should be noted that all percentages in the amounts shown below indicate weight percent.

[Example, comparative example]

Hair chemical treatment agents N001 to N014 having the following formulations were prepared.

Thioglycolic acid 6% ammonia water (28%) 2 Sorbitan monostearate 0.2 Polyoxyethylene stearyl ether 3 Additives shown in Table 1
Quantity of water shown in Table 1
Remaining total: 100.0% Permanent wave liquid 2 liquid (A) Sodium bromate
5% 1.3-butylene gellicol
2-alkyl ether sulfate salt
1. Hydroxyethylcellulose 2. Additives shown in Table 1 Quantity of water shown in Table 1
Remaining total 100.0% cysteine hydrochloride hydrate 6% ammonia water (28
%) 3 monoethanolamine
2 Additives shown in Table 2
Quantity of water shown in Table 2
Remaining total 100.0% Permanent Wave 2 liquid cylinder B) Hydrogen peroxide solution (30%)
5% 1.3-butylene gellicol
3 protein hydrolyzate
1 Additives shown in Table 2 Volume of water shown in Table 2 Remaining total 100. O% p-phenylenediamine 2% p-aminophenol 10-aminophenol
0.5 resorcinol
1.5 cetanol
Stearyldimethylammonium pentachloride
1 Propylene glycol 5 Ammonia (28%) 8 Sodium sulfite 0.5 Additives shown in Table 3 Amount of water shown in Table 3
Remaining total: 100.0% Hair color 2nd liquid Hydrogen peroxide solution (30%) 15% Polyoxyethylene stearyl ether 3 Triethanolamine lauryl sulfate 3 Methyl cellulose
1 citric acid
0.1 Additives shown in Table 3
Quantity of water shown in Table 3
Remaining total: 100.0% N-phenylparaphenylenediamine 3% Toluene-2,5
-Diamine 3-para-aminophenol
1 Polyoxyethylene stearyl ether 3 Methyl cellulose
1 lanolin 0.
5 Polyoxyethylene nonylphenyl 0.3 Ether monoethanolamine 3 Additives shown in Table 4 Amount of water shown in Table 4
Remaining total: 100.0% Hair color 2nd liquid Hydrogen peroxide solution (30%) 15% Polyoxyethylene stearyl ether 3 Triethanolamine lauryl sulfate 3 Methyl cellulose
1 citric acid
0.1 Additives shown in Table 4
Quantity of water shown in Table 4
Remaining total: 100.0%Next, sensory tests were conducted on the hair feel, scalp inflammation, moisturizing properties, hair moisture, and hair loss from the scalp during brushing using the following test and evaluation methods for each of the above treatment agents. The results are shown in Tables 1 to 4.

Sample hair bundle length 20an, diameter 0, 07-0, 10wn (7)
A test sample was prepared by arranging 10 g of virgin hair into a bundle with the hair flow aligned and fixing the hair root with thread.

Hair feel test and evaluation method Sample hair strands were chemically treated with the above-mentioned treatment agent, and the hair feel was subjected to a sensory test.

Hair feel was evaluated using the following 5-level evaluation.

◎...The comb combs very well and there is no crease at all.

O: Easy to comb through, almost no creases.

O': Slightly good combability, with some creases.

Δ: The combing is a little difficult and there are creases.

×: The comb is difficult to comb and has a lot of creases.

Scalp Inflammation Test and Evaluation Method A total of 6 subjects (3 males and 3 females) were examined.After confirming that there were no abnormalities in the scalp, they were chemically treated with the above treatment agent and changes in the scalp were observed.

The evaluation criteria for scalp inflammation was as follows: ◎: No inflammation of the scalp is observed.

O: There are some people who have slight inflammation of their scalp.

O''...Some people have slight inflammation of the scalp.

Δ: Some people have scalp inflammation.

×: There are some people who have significant scalp inflammation.

Test and Evaluation of Moisture Resistance Method Sample hair bundles were chemically treated with the above-mentioned treatment agent, and the moisture retention property of the hair was subjected to a sensory test.

Moisture retention was evaluated on the following five levels.

◎...Hair is moist and doesn't feel dry at all.

O: The hair is moist and has almost no dryness.

○': Hair is slightly moisturized and less dry.

Δ: Hair is a little dry.

X: Hair becomes dry and dry.

Hair Moisture Test Method A sample hair bundle was chemically treated with the above treatment agent, and the hair was left at 25° C. and 65% for 24 hours, after which the hair moisture was measured using a Karl Fischer moisture meter.

Test method for hair loss during brushing: 2 for men and women
A total of four subjects were treated with the above-mentioned treatment agent, and then brushed with a brushing brush, and the number of hairs that fell out from the scalp was counted.

Claims (1)

[Scope of Claims] 1. A chemical treatment agent for hair characterized by containing a methylsiloxane polymer having a degree of polymerization of 1000 or more. 2. The following general formula (1) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼... (1) (m = 0 to 5)
) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(2) (p=3 to 8) The chemical treatment agent for hair according to claim 1, which contains a cyclic methylsiloxane represented by the following. 3. Claim 1 containing 0.1 to 20% by weight of cationized cellulose and/or polyvinylpyrrolidone
The chemical treatment agent for hair according to item 1 or 2. 4. The chemical treatment agent for hair according to any one of claims 1 to 3, which contains an odd carbon chain length fatty acid derivative and/or an odd carbon chain length alcohol derivative.