JP3115378B2 - Hair straightener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair straightening agent, and more particularly to an improved hair straightening agent comprising a first agent containing a reducing agent and an alkali agent and a second agent containing an oxidizing agent. It relates to a hair straightener.

[0002]

2. Description of the Related Art Curing straighteners are known as agents for extending curly hair and curly hair, for extending perm, and for applying straight perm. Typical examples of the hair straightening agent include a first agent containing a reducing agent such as thioglycolic acid or a salt thereof and an alkaline agent and a second agent containing an oxidizing agent such as bromic acid. That is,
Cleavage of cystine bonds in hair keratin with the reducing agent of the first agent, straightening of the hair, washing with water, and then recombination of the cystine bonds with the oxidizing agent of the second agent to extend the curly hair and curly hair You can do it. But,
In the case of a permanent wave, a small amount of cystine bonds can be obtained by cutting the cystine bond a little, but it is necessary to cut the cystine bond further to lengthen the curly hair and the curly hair. Therefore, various measures have been devised to increase the action such as increasing the pH, increasing the concentration of thioglycolic acid, heating, or acting for a long time. For this reason, there has been a problem that the hair is damaged and accidents such as hair cutting easily occur. In particular, when the hair is softened by the first agent, if a straight operation such as comb through is performed and excessive force is applied to the hair, there has been a problem that accidents such as hair breakage are likely to occur.

[0003]

DISCLOSURE OF THE INVENTION In view of the above-mentioned circumstances, the present invention provides a hair straightening agent which can easily apply a hair straightening agent to hair and can perform excellent straightening treatment while suppressing damage to the hair. It is intended to provide.

[0004]

The present inventor has conducted various studies to achieve the above object. As a result, by blending a small amount of fine particle powder with a hair straightener, excellent operability and good elongation were obtained. It has been found that it can be applied to hair evenly, does not apply excessive force when applied to the hair, prevents damage to the hair, and provides a good finish.

That is, the gist of the present invention resides in a hair straightening agent characterized by containing a fine particle powder. Less than,
The configuration of the present invention will be described in detail. Examples of the hair straightening agent targeted in the present invention include a known hair straightening agent comprising a first agent containing a reducing agent and an alkali agent and a second agent containing an oxidizing agent. As the reducing agent in the first agent, for example, thioglycolic acid, thioglycolate (ammonium thioglycolate, sodium thioglycolate, monoethanolamine thioglycolate), cysteine and its hydrochloride, N-acetyl-L −
Mercapto compounds such as cysteine, sulfites, ammonium sulfite, sulfites such as sodium sulfite, ammonium bisulfite, bisulfites such as sodium bisulfite, or thiosulfate, thiosulfates such as sodium thiosulfate, among others And mercapto compounds are particularly preferred. The amount of these reducing agents in the first agent is usually 1 to 20% by weight. Further, as the alkaline agent, for example, ammonia, monoethanolamine,
Examples thereof include alkanolamines such as diethanolamine and triethanolamine, and basic amino acids such as ammonium carbonate, sodium hydroxide and arginine. Particularly, ammonia and monoethanolamine are preferable. The amount of the alkaline agent in the first agent is usually 0.0
1 to 15% by weight. The above-mentioned reducing agents and alkali agents may be used in combination of two or more.

On the other hand, examples of the oxidizing agent in the second agent include bromates such as sodium bromide and potassium bromate, hydrogen peroxide, perborate, sodium percarbonate and the like, and mixtures thereof. The amount of the oxidizing agent in the second agent is usually 1 to 20% by weight.

The hair straightening agent of the present invention basically contains each of the above-mentioned components, and these are balanced with water. However, if necessary, the first agent and / or the second agent may be used. hand,
For example, a silicone derivative, a cationized polymer, a higher alcohol, and / or a water-soluble polyhydric alcohol can be appropriately blended. In the case of the present invention, the form of the first and second agents is preferably a cream, gel or paste having a viscosity of 5,000 to 40,000 cps.
In addition, it is preferable to combine a silicone derivative such as a high molecular silicone with a cationized polymer, since particularly excellent effects can be obtained.

Specific examples of the silicone derivative include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone oil, epoxy-modified silicone oil, fluorine-modified silicone oil, and the like.
Examples thereof include amino-modified silicone oil, alcohol-modified silicone oil, cyclic silicone, and high-molecular silicone, and the compounding amount is 0.1 to 10% by weight. Specific examples of the cationized polymer include a cationic cellulose derivative, a cationized starch, a cationized guar gum, a diallyl quaternary ammonium salt or a copolymer of diallyl quaternary ammonium salt and acrylamide, a polyglycol / polyamine condensate, Methacryloxyethyltrimethylammonium salt and the like are included, and the blending amount is, for example, 0.1 to 10% by weight. As specific examples of the higher alcohol, usually, cetyl alcohol, stearyl alcohol, lauryl alcohol, oleyl alcohol, lanolin alcohol, isostearyl alcohol, cetostearyl alcohol, octyl dodecanol, decyltetradecanol, hydroabiethyl alcohol, hexyldecanol, heptyl Undecanol, behenyl alcohol, myristyl alcohol, jojoba alcohol,
An aliphatic higher alcohol having 8 to 30 carbon atoms, such as castor oil alcohol, olive oil alcohol, and lanolin alcohol, may be used, and the compounding amount is, for example, 1 to 30% by weight. Further, specific examples of the water-soluble polyhydric alcohol include:
Usually, glycerin, propylene glycol, polyethylene glycol, 1,3-butylene glycol, dipropylene glycol, sorbitol, ethylene glycol,
Diethylene glycol, diglycerin, triethylene glycol, polypropylene glycol, hexylene glycol and the like, the amount of which is, for example, 0.1 to
10% by weight.

Furthermore, in the case of the hair straightening agent of the present invention, various compounding agents which are added to other ordinary hair cosmetics can also be added. Specific examples of these include, for example, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyhydric alcohol fatty acid partial ester, polyoxyethylene polyhydric alcohol fatty acid partial ester, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil derivative Nonionic surfactants such as fatty acid diethanolamide; amphoteric surfactants such as amidoamine type, imidazolinium betaine type and sulfobetile type; tertiary aliphatic amine salts, alkyltrimethylammonium halide, dialkyldimethylammonium halide, alkyl Cationic surfactants such as dimethylbenzylammonium halide; alkylbenzene sulfonates, polyoxyalkylene alkyl sulfates,
Anionic surfactants such as alkyl sulfates, olefin sulfonates, alkyl sulfonates, alkyl phosphate polyoxyalkylene alkyl ether phosphates, dialkyl sulfosuccinates, fatty acid salts, etc .; higher fatty acids, solid paraffin, liquid paraffin , Squalane, petrolatum, ester oils and the like; thickeners such as methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, xanthan gum, starch, seaweed, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate, guar gum;
Hydrolysates obtained by hydrolyzing proteins such as collagen, keratin, elastin, fibroin, conchiolin, soybean protein, and casein with acids, alkalis, enzymes, etc., and quaternized cation-denatured proteins, DNA, and sodium salts thereof Preservatives; antioxidants; sequestering agents; ultraviolet absorbers; fragrances; dyes;

In the present invention, it is an essential requirement that fine particle powder be blended with the above hair straightener. The fine particle powder is blended with either the first agent or the second agent, or both the first agent and the second agent. Further, two or more kinds of fine particle powders may be used in combination.
Separate agents may be blended with the agent and the second agent.

The fine particle powder used in the present invention generally has a particle size of 0.05 to 100 μm, preferably 0.1 to 1 μm.
Fine particles of 0 μm inorganic or organic polymer. Specific examples of these fine particle powders include, for example, talc, mica,
Zeolite, ceramic powder, titanium oxide, zinc white, magnesium carbonate, kaolin, shea torque powder, nylon powder, polyethylene powder, silicone powder, sericite, vermiculite, diatomaceous earth, magnesium silicate, calcium silicate, aluminum silicate, Barium silicate, barium sulfate, benzoguanamine powder, ethylene tetrafluoride powder, distyrene benzene pinhole polymer powder, microcrystalline cellulose and other fine powders, among which talc, mica,
Fine particle powders of zeolite, ceramic powder, kaolin, silk powder, nylon powder, polyethylene powder, and silicone powder are particularly preferred for achieving the effects targeted by the present invention. When porous inorganic particles are used as the fine particle powder, the agent of the hair straightener acts gradually over a long period of time, so that it has a more uniform penetration effect on the hair and also has an effect on the hair. It has a protective effect and damage is further suppressed, which is preferable. If the compounding amount of the fine particle powder is too small, a sufficient effect cannot be obtained. Conversely, if the compounding amount is too large, the flowability of the hair straightener deteriorates.
It is from 0.01 to 5% by weight, preferably from 0.1 to 3% by weight.

The method of applying the hair straightener of the present invention is usually
First, the first agent is applied to the hair according to a conventional method, and the hair is combed through and uniformly blended into the hair. The hair is left to stand for 10 to 20 minutes, and then washed with water. And left for 10 to 20 minutes, followed by washing with water. In the present invention, the hair straightener can be satisfactorily applied to the hair under relatively mild conditions. And it has the effect that the damage of the hair at the time of application is also very small.

Further, the first and second agents are applied, and for a certain period of time,
Cleaning after standing is easy. For example, in the washing operation after the application of the first agent, there is a possibility that the cream base having a high viscosity may not be sufficiently washed off.
Since the agent remains on the hair, there are problems such as damage to the hair due to its reducing action, weakening of the oxidizing action of the second agent to be applied next, and a sufficient hair straightening effect cannot be obtained. Therefore, by blending the fine particle powder, there is an effect that the disintegration of the base in the washing operation is promoted and the medicine can be sufficiently removed.

[0014]

EXAMPLES Next, the present invention will be described more specifically with reference to the present invention. However, the present invention is not limited to the description of the following examples unless it exceeds the gist. Example 1 A hair straightening agent comprising a first agent and a second agent having the following composition was prepared.

[0015]

[First agent] Ammonium thioglycolate (50%) 12.0% by weight 28% aqueous ammonia 2.0 {setosteryl alcohol 12.0} liquid paraffin 4.0 {propylene glycol 2.0} polyoxyethylene (15%) ) Cetyl ether 3.0 ヒ ド ロ キ シ Hydroxyethylene cellulose dimethyl diallyl ammonium chloride 0.5 ナ イ ロ ン Nylon powder (particle size 1.0 μm) 0.3 〃 High molecular silicone 0.5 〃 Fragrance Trace amount Make up to 100% with purified water.

[0016]

[Second agent] Sodium bromate 7.0% by weight Citric acid 0.002 Sodium citrate 0.1 Cetanol 11.0 Liquid paraffin 4.0 Paraffin wax 1.0 Polyoxyethylene (15) cetyl Ether 3.0〃 Cetyltrimethylammonium chloride 0.5〃 1,3-butylene glycol 1.0〃 Dimethyldiallylammonium chloride acrylamide copolymer 0.5〃 Silicone powder (particle size 4.5 μm) 0.5〃 Xanthan gum 0 .05〃 Fragrance Trace amount Make up to 100% with purified water. Comparative Example 1 In Example 1, the nylon powder of the first agent and the second powder were used.
A hair straightener was prepared in which the silicone powder was omitted. Example 2 A hair straightening agent comprising a first agent and a second agent having the following composition was prepared.

[0017]

[First agent] Monoethanolamine thioglycolate (50%) 12.0% by weight 80% monoethanolamine 4.5〃 Stearyl alcohol 5.0〃 Liquid paraffin 4.0〃 Glycerin 10.0〃 Dimethylpolysiloxane 2 0.0〃 Alkyltrimethylammonium chloride 2.0〃 Silicone powder (particle size 3.0 μm) 0.5〃 Hydroxyethylcellulose hydroxypropyltrimethylammonium chloride ether 0.5〃 Fragrance Trace amount Make up to 100% with purified water. Comparative Example 2 In Example 2, a hair straightening agent was prepared in which the first and second parts of the silicone powder were omitted. Test Example 1 Good growth of the curly hair straightener when 10 hair curlers or curly hair panelists were applied to each of the hair straighteners prepared in Example 1 and Comparative Example 1 separately on the left and right sides of the hair. , The finish of the hair and the damage to the hair were evaluated according to the following criteria. <Evaluation Criteria> (1) Good stretchability Good stretch was evaluated when the hair straightener was applied.

◎: Very good elongation, uniform adaptation ○: Good elongation, uniform adaptation △: Somewhat poor elongation, not uniform adaptation ×: Inferior elongation, not uniform adaptation (2) Hair Finish ◎: Very good finish, gloss, excellent combability ○: Good finish, gloss, good combability △: Slightly poor finish with rustiness ×: Poor finish and rustiness (3) Hair Observation of the surface of the hair with an electron microscope (3000x magnification)
The degree of dermal damage was assessed.

○: No damage was observed. Δ: Damage such as slight bulge, crack, peeling, etc. is observed in the hair skin. X: Significant bumps, cracks, peeling, and other damages are observed on the hair pelts. Test Example 2 Table 1 shows the results when a similar panel test was carried out in Test Example 1 using both hair straighteners prepared in Example 2 and Comparative Example 2.

[0020]

[Table 1]

[0021]

According to the hair straightening agent of the present invention, by blending fine particle powder, the hair can be stretched well when applied to the hair and can be uniformly blended, and the comb through can be smoothed. Without applying excessive force to the hair, the hair can be prevented from being damaged and a good finish can be obtained. In addition, the first agent and the second agent can be given appropriate viscosity, and the viscosity can fix the hair straight. Therefore, it is not necessary to fix to a panel or the like as in the prior art, and there is no risk of accidents such as hair breakage.

Claims (7)

(57) [Claims] An insoluble fine particle powder (calcium oxide oxide)
Hair straightener agent characterized by containing arm, excluding the bentonite). 2. The method according to claim 1, wherein the insoluble fine particle powder is talc,
Mosquito, zeolite, ceramic powder, titanium oxide, sub-
Lead flower, magnesium carbonate, kaolin, silk powder,
Nylon powder, polyethylene powder, silicone
Powder, sericite, permiculite, diatomaceous earth,
Magnesium silicate, calcium silicate, aluminum silicate
, Barium silicate, barium sulfate, benzoguana
Min powder, ethylene tetrafluoride powder, distyrene
Nsenpin hole polymer powder and microcrystalline cellulose
Is a fine particle powder selected from the group consisting of
The hair straightening agent according to claim 1, wherein 3. The method according to claim 1, wherein the insoluble fine particle powder is talc,
Mosquito, zeolite, ceramic powder, kaolin, sill
Cup powder, nylon powder, polyethylene powder
And fine particles selected from the group consisting of silicone powder
3. The curly hair according to claim 1, wherein the curly hair is a powder.
Straightening agent. 4. The insoluble fine particle powder has a particle size of 0.05
Organic or inorganic high-molecular fine particles of up to 100 μm in size
Item 4. A hair straightening agent according to any one of Items 1 to 3. 5. The method according to claim 1, wherein the insoluble fine particle powder comprises a porous inorganic material.
The curly hair straightener according to any one of claims 1 to 4, which is a particle.
Agent. 6. The insoluble fine particle powder has a compounding amount of 0.1.
The amount according to any one of claims 1 to 5, which is 0.01 to 5% by weight.
Hair straightener. 7. A hair straightening agent according to any one of claims 1 to 6.
And a first agent containing a reducing agent and an alkaline agent and an oxidizing agent.
And a second agent containing the agent.