CN112438900A - Composition for oxidative hair dyeing or composition for bleaching and bleaching hair - Google Patents

Abstract

The present invention provides an oxidation hair-dyeing composition or a composition for bleaching and bleaching hair, which comprises the following components (A) and 0.1-10 mass% of the following components (B) when in use: (A) lysine or a salt thereof; (B) an oily component in solid or paste form at 25 deg.C. The invention can prevent the condition that naturally relaxed natural curly hair becomes stronger curly after oxidation hair dyeing treatment and hair decoloration and decolouring treatment.

Description

Composition for oxidative hair dyeing or composition for bleaching and bleaching hair

Technical Field

The present invention relates to an oxidation hair-dyeing composition or a composition for bleaching and bleaching hair. More particularly, the present invention relates to a composition for bleaching and depigmenting hair, which prevents naturally soothing curly hair from becoming more curly hair after oxidative dyeing treatment and bleaching and depigmenting treatment

Background

Basically, the oxidation hair dye, the hair bleach or the hair dye remover contains an alkaline agent such as ammonia in the first agent, and an oxidizing agent such as hydrogen peroxide and an oxidation assistant such as persulfate in the second agent. Therefore, the hair subjected to the oxidative dyeing treatment or the bleaching and bleaching treatment of the hair is somewhat damaged.

Patent literature.

Patent document 1: japanese patent laid-open No. 2011-102244.

Patent document 2: japanese patent laid-open No. 2014-141468.

Patent document 3: japanese patent laid-open No. 2014-240381.

Patent document 4: japanese patent laid-open No. 2004-346040.

Patent document 1 relates to a hair treatment agent containing (a) a cationized hyaluronic acid, (B) a hydrocarbon and/or a wax, preferably further containing an amphoteric polymer compound containing a dimethyldienium ammonium unit, and used as a hair bleaching agent or an oxidation hair dye. This hair treatment agent is capable of suppressing hair roughening, hair tip hardening, and the like caused after hair treatment while ensuring an original effect such as excellent bleaching property on hair.

The above patent document 2 relates to a first agent for bleaching oxidative hair dyeing of a two-agent type comprising (a) an N-stearoylamino acid and (b) a nonionic surfactant. According to the description of example 2 after paragraph 0065 of patent document 2, by using the first agent in combination with a predetermined second agent, it is possible to prevent the reduction of the breaking strength of hair, the deterioration of the smoothness of hair, the deterioration of the touch feeling, and the like, which are caused after the hair treatment.

Patent document 3 relates to a pre-rinse type hair treatment composition containing (a) a cationic surfactant, (B) a higher alcohol, and (C) a basic amino acid. The hair treatment agent can inhibit hair thinning with age from fluffing after shampooing.

Patent document 4 relates to a hair styling agent for styling permed damaged hair, which contains a component (a) containing a substantially constant acidic amino acid and a component (B) containing a substantially constant basic amino acid. Can recover the tensile strength of hair, and maintain the hair wave formed after perm for a longer time.

As described above, the conventional treatment agent or protective agent for treating damaged hair is mainly intended to improve the appearance and softness of the hair to the touch, maintain the physical strength of the hair, or increase the volume or style retention of long-lasting or permed hair.

However, the inventors of the present invention have found that many people's hair, at first glance, appears straight, but if left long, clearly appears to be naturally a relaxing natural curl (so-called "self-roll" or "natural roll"). Relaxing natural curls generally leaves a good impression. However, such natural curls gradually become unnatural curls called "stubborn hairs (curly hairs)" and become too strong curls during the oxidation dyeing treatment, the bleaching and bleaching treatment, and the like, and the impression of natural curls is easily lost.

Therefore, the technical problem to be solved by the present invention is to prevent the natural curly hair from becoming strong curly hair after oxidation dyeing treatment and hair decoloration and depigmentation treatment.

The objects of patent documents 1 and 2 are to prevent deterioration of the touch feeling of hair and reduction of breaking strength, and the present invention does not deal with the above problems. In addition, patent documents 3 and 4 are similar to the problem of the present invention at first glance in improving the "bulkiness" and "wave retention" of hair. However, patent document 3 is premised on a special condition of "hair that becomes thin with age and is bent after shampooing" rather than natural curls. Patent document 4 is directed to wave hair formed by permanent wave treatment (hair protein disulfide bond cleavage by a reducing agent and bond reformation by an oxidizing agent). Therefore, the inventions disclosed in patent documents 1 to 4 cannot solve the technical problem of the present invention.

The present inventors have made detailed studies on the process of naturally curly hair becoming stronger after oxidation dyeing treatment and hair bleaching and bleaching treatment, and have obtained the following findings by atomic force microscope observation and the like.

Fig. 1 shows a part of a naturally curly hair 1, which is represented by an exaggerated curl degree. The hair 1 has different microfibrils in the outer portion X and the inner portion Y (not shown) of the natural curl. The plurality of microfibrils are in a cross-line shape in the outer portion X, and in a parallel line shape in the inner portion Y. Further, the microfibrils and the matrix protein around them are different in the sensitivity to the agent in the outer part X and the inner part Y of the natural curl, and when the hair 1 that is naturally curled is subjected to an oxidative hair dyeing treatment, for example, the outer part X undergoes an oxidative decomposition reaction of the matrix protein and the elasticity of the outer part X is relatively greatly reduced as compared with the inner part Y. As a result, the curl of the hair 1 becomes stronger as shown by the imaginary line (chain line) in fig. 1.

Disclosure of Invention

The present inventors have intensively studied how to prevent the curling of hair from becoming too strong based on the above findings. In addition, studies have been made to find effects of softening, smoothing, and polishing hair after oxidative hair dyeing treatment and hair bleaching and bleaching treatment.

(constitution of the first invention)

The first invention of the present application is an oxidation hair-dyeing composition or a composition for bleaching and bleaching hair, which comprises the following component (a) and, when used, comprises 0.1 to 10 mass% of the following component (B):

(A) lysine or a salt thereof;

(B) an oily component in solid or paste form at 25 deg.C.

(constitution of the second invention)

The second invention of the present application is the composition for oxygen oxidative hair dyeing or hair bleaching and dye removing of the first invention, which comprises two or more components (B).

(constitution of the third invention)

The third invention of the present application is the composition for oxygen oxidation dyeing or composition for bleaching and bleaching hair of the first or second invention, wherein the ratio of the content of the component (a) to the content of the component (B), i.e., (a)/(B), is in the range of 0.005 to 0.7 in use.

(constitution of the fourth invention)

The fourth aspect of the present invention is the oxygen oxidation hair dye composition or the composition for bleaching and bleaching hair dye of any one of the first to third aspects, further comprising 0.5 to 6.5% by mass of the following component (C) when used:

(C) an oily component which is liquid at 25 ℃.

(constitution of fifth invention)

The fifth invention of the present invention is the oxygen oxidation hair dye composition or the hair bleaching and bleaching composition according to any one of the first to fourth inventions, wherein the ratio of the content of the component (a) to the total of the content of the component (B) and the content of the component (C), i.e., (a)/{ (B) + (C) } is in the range of 0.003 to 0.5 at the time of use.

(constitution of sixth invention)

The sixth invention of the present invention is the oxygen oxidation hair dye composition or the hair bleaching and bleaching composition according to any one of the first to fifth inventions, further comprising the following component (D):

(D) an amino acid other than the above-mentioned component (A) or a salt thereof.

(constitution of seventh invention)

The seventh invention of the present application is a natural coil maintaining/restoring agent containing the following components (a) and (B):

(A) lysine or a salt thereof;

(B) 0.1 to 10 mass% of an oily component which is solid or pasty at 25 ℃.

(Effect of the first invention)

When the naturally curly hair shown in (a-1) of fig. 2 is treated three times with a general hair bleach, as shown in (a-1) of fig. 2, the curliness of the hair becomes strong as shown in (a-2) of fig. 2. The arrows enclosed in (a-1) and (a-2) of fig. 2 show the crimp width of the entire tuft.

However, if the hair decoloring composition of the first invention comprising the component (A) and the component (B) is repeatedly applied three times to the natural volume of hair shown in (B-1) of fig. 2, the volume of hair is seen from the arrow in the state shown in (B-2) of fig. 2, and there is little change from (B-1), not becoming unnatural and curled too strongly. That is, the effect of maintaining the natural curls in the hair bleaching treatment was confirmed. In the oxidation hair dyeing treatment and hair bleaching treatment using an alkaline agent and an oxidizing agent, as in the case of a hair bleaching agent, it is expected that such a natural curl holding effect can be obtained.

The natural curl maintaining effect is basically produced by (a) lysine or a salt thereof penetrating into hair. This is demonstrated, if described with reference to FIG. 1, that lysine or a salt thereof acts on microfibrils in the outer part X of the native coil and matrix protein around the microfibrils, and suppresses the decrease in elasticity of the outer part X. Thus, the difference in elasticity between the outer portion X and the inner portion Y of the natural volume of hair 1 is reduced, and therefore, the occurrence of a change such as curling is suppressed. Further, no effect of maintaining natural curl was observed for amino acids other than lysine or salts thereof (including basic amino acids other than lysine and salts thereof).

However, in the treatment with the composition for bleaching hair containing the component (a) but not containing the component (B), for example, as seen from comparative example 5 described later, the natural curl retaining effect is hardly obtained. The reason for this is presumed that (B) an oily component which is solid or pasty at 25 ℃ acts as a carrier for penetrating the component (a) into the hair. In order to effectively exhibit the carrier function of the component (B), the content of the component (B) when used needs to be 0.1 mass% or more. When the content of the component (B) exceeds 10% by mass, the effect is saturated.

In addition to the above effects, the oxidation hair-dyeing composition or the composition for bleaching and bleaching hair according to the first aspect of the present invention can impart a good touch to the treated hair, such as softness, smoothness, and luster.

(Effect of the second invention)

The oxidation hair-dyeing composition or the composition for bleaching and bleaching hair contains 1 or more kinds of the component (B), but it is particularly preferable to contain 2 or more kinds of the component (B) for the natural volume-maintaining effect and the good touch of the treated hair. The details of "two or more components (B)" are described in the embodiments of the present invention.

(Effect of the third invention)

(A) The mass ratio (a)/(B) of the content of the component (a) to the content of the component (B) is in the range of 0.005 to 0.7 at the time of use, and is particularly satisfactory in terms of achieving both the natural curl maintaining effect and the good feel of the treated hair.

(Effect of the fourth invention)

Particularly, when an oxidative hair dye composition or a composition for bleaching and bleaching hair is used, if the "oily component which is liquid at 25 ℃" as the component (C) is contained in an amount of 0.5 to 6.5% by mass, the softness and smoothness of the treated hair are particularly good as a result of the combination of the component (B) and the component (C).

(Effect of the fifth invention)

(A) The mass ratio of the content of the component (a)/{ (B) + (C) } to the total content of the components (B) and (C) is 0.003 to 0.5 in use, and is particularly preferable in terms of achieving both the natural curl retaining effect and the good feel of the treated hair.

(Effect of the sixth invention)

When the oxidation hair-dyeing composition or the composition for bleaching and bleaching hair further contains, as the component (D), an amino acid or a salt thereof other than the component (A), the combination of the component (A) and the component (D) results in providing hair with particularly good luster.

(Effect of the seventh invention)

The natural curl maintaining/restoring agent of the seventh aspect of the present invention is suitably used as a pretreatment agent for natural curls before oxidation dyeing treatment and hair bleaching and bleaching treatment, or as a post-treatment agent for natural curls which become strong curls after oxidation dyeing treatment and hair bleaching and bleaching treatment. As the pretreatment agent, natural curly hair can be expected to be maintained in oxidation dyeing treatment and hair bleaching and bleaching treatment, and as the post-treatment agent, natural curly hair which is originally naturally relaxed can be expected to be restored; the reason why the above-described effects are obtained in the seventh invention is the same as that in the case of the first invention.

Drawings

Fig. 1 is a diagram illustrating a process in which naturally curly hair is strongly curly due to an oxidation hair-dyeing treatment or the like.

Fig. 2 is a diagram illustrating a comparison between a treatment of natural curls of hair with a normal hair bleach and a treatment with the composition for bleaching hair according to the first invention.

Fig. 3 is a diagram illustrating evaluation criteria in an example of the present invention.

Detailed Description

Hereinafter, examples including the best mode will be described. The technical scope of the present invention is not limited by the following examples;

first embodiment group: composition for oxidative hair dyeing or composition for bleaching and bleaching hair

1 of the first embodiment group: an oxidative hair coloring composition.

The composition for oxidative hair dyeing contains at least the following components (A) and (B), and preferably also the following components (C) and (D), in addition to the components which are usually essential or important as such a composition and which will be described later.

(constitution of composition for oxidative hair dyeing, essential Components)

The composition for oxidation hair dyeing has a constitution of a usual oxidation hair dye in addition to the components (A) to (D). That is, the dye composition is usually of a two-pack type, in which the first pack contains an alkaline agent such as ammonia and an oxidation dye, and the second pack contains an oxidizing agent such as hydrogen peroxide. However, the first dose or the second dose may be divided into a plurality of doses to form a three-dose or more multi-dose formula.

The two-pack type oxidation dyeing composition is preferably in the form of a solution, emulsion, cream, or gel on an aqueous basis, but may be in the form of a powder or granule. In the case of a powder or granule formulation, a single dose may be used. In addition, the form of the coating composition to be used is appropriately selected from, for example, a liquid form such as an aqueous solution or an emulsion, a cream form, a gel form, a foam form, a mist form, and the like, in consideration of spreadability. When the foam is formed, an aerosol container, a non-aerosol container, a vibration container, or the like can be used. When atomized, a nebulizer may be used.

The two-component and multi-component hair oxidation compositions are used by mixing the components to prepare the hair oxidation agent. The mixing operation may be performed before or after application to the hair. For example, the first agent and the second agent may be mixed before application to the hair, or the first agent and the second agent may be taken into a comb or the like and mixed with the hair using a comb or the like.

(alkaline agent)

As the alkaline agent, ammonia is typical, and in addition thereto, alkanolamines such as monoethanolamine, dimethanolamine, triethanolamine, monoisopropanolamine, aminomethanol, and isopropylamine are exemplified. Silicates such as sodium silicate, potassium silicate, and the like are also shown. Also, carbonates such as sodium carbonate, ammonium carbonate, magnesium carbonate, and guanidine carbonate can be cited. Further, various bicarbonates, silicates, phosphates, hydroxides, and the like are exemplified.

(Oxidation dye)

Oxidation dyes are divided into primary intermediates and coupling agents. Specific examples of the main intermediate include p-phenylenediamine, p-hydroxybenzylamine, p-hydroxyphenol, 2 '((4-aminophenyl) diethanol, and salts thereof, and in addition, N-phenyl-p-phenylenediamine, 4' -diphenylamine, o-aminophenol, p-methylphenol, 2-hydroxyethylp-phenylenediamine, o-chlorophenyldiamine, 4-amino-m-cresol, 2-amino-4-hydroxyacetamidophenyl, 2, 4-diaminophenol, and salts thereof;

specific examples of the coupling agent include 2, 4-diaminocresol hydrochloride, α -naphthol, 2, 6-diaminopyridine, 5-amino-o-cresol, 5- (2-hydroxyethylamino) -2-cresol, and resorcinol. Further examples of the compound include m-aminophenol, catechols, pyrrolidinols, phloroglucinols, gallic acid, hydroquinone, m-phenylenediamine, toluene-3, 4-diamine, diphenylamine, 3' -iminophenyl, 1, 5-dihydroxyxylene, tannic acid, and salts thereof.

In the oxidation dyeing wool composition, for the purpose of adjusting the dyeing wool color or the like, a direct dye such as an acid dye, a basic dye, a natural dye, a nitro dye, an HC dye, or a disperse dye may be appropriately blended.

(oxidizing agent)

The oxidizing agent is typically hydrogen peroxide, and examples thereof include urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium cesium peroxide, strontium peroxide, hydrogen peroxide adducts of sulfate, hydrogen peroxide adducts of phosphate, and hydrogen peroxide adducts of pyrrole phosphate.

(component (A))

(A) The ingredient is lysine or its salt. The kind of "salt" is not limited. The component (A) may contain, for example, lysine and one or more salts thereof or two or more salts of lysine.

The content of the component (a) in the oxidation dyeing composition is not particularly limited, but the lower limit thereof is preferably 0.01% by mass, and particularly preferably 0.05% by mass, when used. The upper limit value is preferably 2% by mass, and particularly preferably 1% by mass when used. From the viewpoint of the effect of maintaining natural curly hair, it is preferable that the component (A) is contained in one dose.

(component (B))

(B) The component (A) is an oily component which is solid or pasty at 25 deg.C. The "oily component which is solid or pasty at 25 ℃" is not limited in kind, but waxes, hydrocarbons, higher fatty acids, esters and the like of animal origin or plant origin may be exemplified. The higher alcohol is usually solid or pasty at 25 ℃ but is not included in the component (B) because the effect as the component (B) of the present invention is not observed.

Incidentally, examples of the present invention and comparative examples described later each contain cetyl alcohol and stearyl alcohol as higher alcohols, but are used not as the component (B) but for emulsification of the composition.

Examples of the wax of animal origin include beeswax and lanolin, and examples of the wax of plant origin include candelilla wax and carnauba wax. Examples of the hydrocarbon compound which is solid or pasty at 25 ℃ include paraffin, microcrystalline wax, and vaseline. Examples of the higher fatty acid which is solid or pasty at 25 ℃ include stearic acid, palmitic acid, and behenic acid. Examples of the esters which are solid or pasty at 25 ℃ include hardened castor oil isostearate and myristyl myristate.

Among the above components (B), 1 or more species of waxes, hydrocarbons or esters are particularly preferably contained, and 2 or more species of components (B) are more preferably contained, and among the 2 or more species of components (B), at least waxes of animal origin, particularly waxes of animal origin, hydrocarbons and esters are particularly preferably contained.

The content of the component (B) in the oxidation dyeing composition is not particularly limited, but the lower limit thereof is preferably 0.1% by mass, and particularly preferably 0.5% by mass, when used. The upper limit value is preferably 10% by mass, and particularly preferably 7% by mass when used.

(component (C))

(C) Since the component (B) is an oily component which is liquid at 25 ℃, the component (B) contains all oily components except the higher alcohol. By using component (C) as an oily component which is liquid at 25 ℃ in addition to component (B) which is a solid or pasty oily component at 25 ℃, further improvement in softness and smoothness of hair can be expected. The component (C) may, for example, be avocado oil, olive oil, sunflower oil, rapeseed oil, camellia oil, soybean oil, rapeseed oil, bran oil, macadamia nut oil, castor oil, linseed oil, coconut oil, etc., which are vegetable oils. Examples of the hydrocarbon which is liquid at 25 ℃ include light mobile isoparaffin, mobile paraffin, and isodecane. Examples of the ester which is liquid at 25 ℃ include ethyl hexaenoic acid hexadecyl and myristic acid isopropyl alcohol. Examples of the fatty acid which is liquid at 25 ℃ include isostearic acid and oleic acid. Examples of the silicone include dimethylpolysiloxane (INCI name: dimethylsiloxane), hydroxyl-terminated dimethylpolysiloxane (INCI name: dimethanol), methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, and alkyl-modified silicone.

The content of the component (C) in the oxidation dyeing composition is not particularly limited, but the lower limit thereof is preferably 0.1% by mass, and particularly preferably 0.5% by mass, when used. The upper limit value is preferably 15% by mass, and particularly preferably 10% by mass when used.

(component (D))

(D) Component (A) is an amino acid other than the above-mentioned component (A) or a salt thereof. Further improvement in hair luster can be expected by using the component (D) as an amino acid other than the component (A) or a salt thereof in combination with the component (A) as the component (A) of lysine or a salt thereof. The component (D) includes, but is not limited to, aspartic acid, glutamic acid, taurine, glycine, alanine, theanine, and arginine and serine, which are acidic amino acids, and basic amino acids. The amino acid of the present invention is not a broad amino acid (all organic compounds having both an amino acid and a carboxyl group), but a narrow amino acid (more than 20 α -amino acids which constitute a biological protein constituent unit). From the viewpoint of further improving the hair luster effect, it is preferable to incorporate the component (D) in one dose.

(content ratio (A)/(B))

The mass ratio (a)/(B) of the content of the component (a) to the content of the component (B) in the oxidation dyeing composition is in the range of the lower limit value of 0.005, particularly preferably 0.01, and more preferably 0.02 at the time of use for the reasons described in the column of the "effect of the third invention". The upper limit value is preferably 0.7, and particularly preferably 0.6, when used.

(content ratio (B)/(C))

The mass ratio (B)/(C) of the content of the component (B) to the content of the component (C) in the hair oxidation composition is preferably 0.1, more preferably 0.3, and particularly preferably 0.5 at the lower limit in use. The upper limit value is preferably 7.0, particularly preferably 6.0, and particularly preferably 5.0. (B) When 0.1 or more is used, smoothness and luster of the hair are maintained more favorably, and when 7.0 or less is used, softness of the hair is further improved.

(content ratio (A)/{ (B) + (C) })

The mass ratio of the component (a) to the sum of the contents of the components (B) and (C), i.e., the range of (a)/{ (B) + (C) } in the composition for oxidation hair is based on the reason described in the column of "effect of the fifth invention", and the lower limit thereof is preferably 0.003, particularly preferably 0.008, and particularly preferably 0.01 at the time of use. The upper limit value is preferably 0.5, and particularly preferably 0.4.

(other Components of the composition for Oxidation dyeing)

(surfactant)

Surfactants include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.

Examples of the nonionic surfactant include ether type, ester type, and alkyl dextran.

Specific examples of the ether-type nonionic surfactant include POE cetyl ether, POE stearyl ether, POE cetyl butyl ether, POE isostearyl ether, and POE octylphenyl ether.

Specific examples of the ester-type nonionic surfactant include POE sorbitan monooleate, POE glycerol monostearate, POE sorbitan tetraoleate, polyethylene glycol monooleate, oleophilic glycerol monooleate, glycerol monostearate of the self-saponified type, sucrose fatty acid ester, and glycerol myristate.

Specific examples of the alkyl dextran include alkyl (having 8 to 16 carbon atoms) dextran, POE methyl diformate, and the like.

Examples of the anionic surfactant include alkyl ether sulfate, alkyl ether sulfate ester salt, alkyl ether sulfate, alkyl sulfate, olefin sulfonate, alkyl sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkyl ether carboxylate, α -sulfonic acid fatty acid salt, N-imine surfactant, phosphate or diester surfactant, sulfonate, and derivatives thereof.

Examples of the cationic surfactant include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, trimethylammonium chloride, alkyltrimethylammonium chloride, tetramethylammonium chloride, dimethylammonium methylammonium bromide, stearyltrimethylammonium bromide, lanolin fatty acid amide dimethylammonium ethylsulfate, stearyltrimethylammonium, cetyltrimethylammonium chloride, methacrylate ethyltrimethylammonium chloride and trimethylammonium methylsulfate.

Examples of the amphoteric surfactant include cocoa butter protein (theobroma), lauramidodextrin, cocamidopropyl betaine, sodium lauroyl acetate, sodium cocoate, coconut oil fatty acid amidodextrin, and laurate (lauryl dimethylamino acetate).

(higher alcohols)

The higher alcohol is not the component (B) or the component (C) of the present invention, but is an important component in the preparation of the oxidation dyeing composition. Specific examples of the higher alcohol include hexadecenol (hexadecanol), 2-hexadecenol, stearyl alcohol, hexadecearyl alcohol, oleyl alcohol, and vinyl alcohol.

(Polymer Compound)

Examples of the polymer compound include cationic polymers such as a cationized cellulose derivative, cationic starch, a cationized guar gum derivative, a quaternary ammonium dioxide salt/acrylamide copolymer and a quaternary polyvinylpyrrolidone derivative, anionic polymers such as a carboxyvinyl polymer, a hexaalkane butane chewing gum, carrageenan, sodium alginate, pectin and an acacia chewing gum, and nonionic polymers such as guar gum, agar, hydroxyethyl cellulose, carboxymethyl dextrin, polyethylacrylate, polyacrylamide and polyethylene glycol.

In the oxidation dyeing composition of the present invention, in addition to the above components, known components to be blended in the oxidation dyeing composition, for example, pH adjuster, saccharide, solvent, chelating agent, dispersant, stabilizer, plant extract, crude drug extract, vitamin, perfume, ultraviolet absorber, etc. may be appropriately selected and contained as necessary or as long as the effect of the present invention is not hindered.

2 of the first embodiment: composition for bleaching hair

The composition for bleaching hair according to the present invention is different from the composition for oxidation dyeing according to the first embodiment 1 only in that it does not contain a dye (oxidation dye, direct dye), and other configurations and effects are the same as those described in the composition for oxidation dyeing hair according to the first embodiment 1, and a description thereof will be omitted.

3 of the first embodiment group: composition for hair depigmentation

The composition for hair depilation according to the present invention differs from the composition for oxidation dyeing according to the first embodiment 1 only in that it does not contain a dye (oxidation dye, direct dye) and contains an oxidation assistant described below in addition to the oxidizing agent, and other configurations and effects are the same as those described in the composition for oxidation dyeing hair according to the first embodiment 1, and the description thereof will be omitted.

Examples of the oxidation assistant include persulfates such as ammonium persulfate, potassium persulfate, and sodium persulfate.

Second embodiment group: natural curly hair maintaining and repairing agent

When the natural curl maintaining/restoring agent of the second embodiment is used as a pretreatment agent for natural curls before oxidation dyeing treatment, bleaching of hair, and bleaching of hair, the effect of maintaining natural curls in oxidation dyeing treatment, bleaching of hair, and bleaching of hair can be expected. Further, if the natural curl maintaining/restoring agent is used as a post-treatment agent for natural curls that are strongly curled by oxidative dyeing treatment, hair bleaching and depigmentation treatment, the restoring effect for natural curls that are naturally and naturally relaxed can be expected.

In addition, effects of imparting softness, smoothness, and luster to hair can also be expected.

The natural curl maintaining/restoring agent of the second embodiment does not contain an alkaline agent, an oxidation dye, an oxidizing agent, or an oxidation auxiliary agent, unlike the oxidation dyeing composition, the hair bleaching composition, and the hair bleaching composition of the first embodiment.

But contains, as essential components, (A) lysine or a salt thereof and 0.1 to 10 mass% of (B) an oily component which is solid or pasty at 25 ℃. Preferably, the oil-based composition contains 0.5 to 6.5 mass% of (C) an oily component which is liquid at 25 ℃ and (D) an amino acid or a salt thereof other than the component (A). (A) The effect of blending the components (A) to (D) is the same as that of the composition for oxidation dyeing of the first embodiment.

The effects of the components (a) to (D) according to the second to sixth inventions are similar to those of the oxidation dyeing composition of the first embodiment.

The natural curl maintaining and repairing agent may be in one-dose or multi-dose form, and the dosage form may be selected from solution, emulsion, cream, gel, powder, etc. The description of one item (other ingredients in the hair oxidizing composition) also applies to the natural curl maintaining/restoring agent.

Examples

Examples of the present invention and comparative examples are described below. The technical scope of the present invention is not limited by these examples and comparative examples.

(preparation of two-agent composition for Oxidation dyeing or Hair decoloring)

First parts of the oxidation-dyeing compositions of examples 1 to 6 shown in Table 1, comparative examples 1 to 5, examples 7 to 14 shown in Table 2, and examples 15 to 18 shown in Table 3 (example 2 is for bleaching hair) were prepared by a conventional method. The first dose of each of the examples and comparative examples was used in combination with the second dose having the same composition shown in table 4 at a mass ratio of 1: 1. The dosage form of the first agent is creamy, and the dosage form of the second agent is emulsion.

The numerical values in tables 1 to 4 showing the contents of the respective components show the contents in the first preparation or the second preparation in units of mass%. Of the components shown in tables 1 to 3, the components (A) to (D) of the present invention are indicated by "A" to "D" in the left column of the component names. However, although the component (D) is actually marked as "not a" in this column, the component (D) is intentionally marked as "not a" in comparative examples 2 to 4 for the purpose of facilitating understanding of the evaluation of the blending effect as a component for comparison with the component (a).

In tables 1 to 3, the mass ratio (a)/(B) of the contents of the predetermined components in the first dose according to each of examples and comparative examples is denoted by "a/B", the mass ratio (B)/(C) is denoted by "B/C", and the mass ratio (a)/{ (B) + (C) } is denoted by "a/(B + C)". The second preparation shown in table 4 does not contain any of the components (a) to (D), and therefore the numerical values of these mass ratios are the mass ratios in use (that is, in the case where the first preparation and the second preparation are mixed).

(evaluation of two-agent composition for Oxidation dyeing or Hair decoloring)

(Natural roll maintenance)

For the hair of the study partner who had not undergone the chemical treatment, 150 hair tresses in the natural curly state of about 20cm in length were selected as the evaluation hair bundle 1, and only the required number of hair bundles were prepared. These hair strands 1 are shown in fig. 3A as a realistic illustration, but in a state of being hung indoors, the width in the horizontal direction is less than 3 cm.

Then, the oxidation dyeing or hair bleaching compositions obtained by mixing the first agents of the examples shown in tables 1 to 3 with the second agents shown in table 4 at a mass ratio of 1:1 were applied to the hair bundle 1, left at 30 ℃ for 35 minutes, washed, immersed in water for 1 minute, and then dried with a towel. Then, the fabric was immersed in 5% sodium lauryl sulfate solution for 30 seconds, then dried by repeated cycles of 2 times with a towel, immersed in water for 1 minute, then dried by repeated cycles of 2 times with a towel, and then hung in a room at 25 ℃ and 50% humidity for 1 night to be naturally dried.

The above oxidative hair dyeing treatment/hair bleaching effect of maintaining natural curly hair in the hair bundle 1 after three treatments was evaluated. Evaluation was performed based on the width of the suspended hair bundle 1 in the horizontal direction, and if the width was less than 3cm, the natural roll was maintained very well, so an evaluation of "excellent" was given, if the width was 3cm or more and less than 4cm, the natural roll was maintained well, an evaluation of "o" was given, and if the width was 4cm or more, a evaluation of "x" was given if the natural curl was not maintained. In fig. 3B, a hair bundle 1 given such an evaluation of "x" is illustrated in a realistic manner. The evaluation results of the examples and comparative examples are shown in the "natural volume maintenance" column in tables 1 to 3.

(Soft, smooth, glossy)

A cream-like composition for oxidation dyeing or hair bleaching, which was obtained by mixing the first agent of each example shown in tables 1 to 3 with the second agent shown in Table 4 at a mass ratio of 1:1, was applied to a 30 cm-long black hair bundle 2 (manufactured by Vierakus) in such a manner that 3g of the composition was applied per gram of the hair bundle 2, and then left at 30 ℃ for 30 minutes. Thereafter, the creamy composition attached to the hair bundle 2 was washed with water, and then washed twice with a composition for shampoo "Promaster color fashion shampoo" manufactured by hoyu corporation, followed by one-time hair care with a composition for hair conditioner "Promaster color fashion conditioner" manufactured by hoyu corporation. The treated composition was rinsed with water for each application with these shampoo and conditioner.

After the above treatment, the hair bundle 2 was dried with hot air, and the dried hair bundle 2 was evaluated for softness, smoothness, and luster according to the following evaluation criteria.

(evaluation of flexibility)

Softness is evaluated in terms of the "softness" of the hair strand 2. The average of the scores given to 5 test respondents was calculated by giving a score of 5 when the evaluation was excellent, giving a score of 4 when the evaluation was good, giving a score of 3 when the evaluation was still good, giving a score of 2 when the evaluation was slightly poor, giving a score of 1 when the evaluation was poor, and scoring 5 test respondents.

The average value is "5" when it is 4.6 minutes or more, is "4" when it is less than 4.6 minutes and 3.6 minutes or more, is "3" when it is less than 3.6 minutes and 2.6 minutes or more, is "2" when it is less than 2.6 minutes and 1.6 minutes or more, and is "1" when it is less than 1.6. The evaluation results of the examples and comparative examples are shown in the "flexibility" columns of tables 1 to 3.

(smoothness evaluation)

Smoothness is evaluated by "touching the hair bundle 2 with a hand to see whether the hair bundle 2 smoothly passes through the finger". The average of the scores given to 5 test respondents was calculated by giving a score of 5 when the evaluation was excellent, giving a score of 4 when the evaluation was good, giving a score of 3 when the evaluation was still good, giving a score of 2 when the evaluation was slightly poor, giving a score of 1 when the evaluation was poor, and scoring 5 test respondents.

The average value is "5" when it is 4.6 minutes or more, is "4" when it is less than 4.6 minutes and 3.6 minutes or more, is "3" when it is less than 3.6 minutes and 2.6 minutes or more, is "2" when it is less than 2.6 minutes and 1.6 minutes or more, and is "1" when it is less than 1.6. The evaluation results of the examples and comparative examples are shown in the "smooth" columns of tables 1 to 3.

(gloss evaluation)

Gloss was assessed by visual inspection of the tress 2 under a standard light source. The average of the scores given to 5 test respondents was calculated by giving a score of 5 when the evaluation was excellent, giving a score of 4 when the evaluation was good, giving a score of 3 when the evaluation was still good, giving a score of 2 when the evaluation was slightly poor, giving a score of 1 when the evaluation was poor, and scoring 5 test respondents.

The average value is "5" when it is 4.6 minutes or more, is "4" when it is less than 4.6 minutes and 3.6 minutes or more, is "3" when it is less than 3.6 minutes and 2.6 minutes or more, is "2" when it is less than 2.6 minutes and 1.6 minutes or more, and is "1" when it is less than 1.6. The evaluation results of the examples and comparative examples are shown in the columns of "gloss" in tables 1 to 3.

TABLE 1

TABLE 2

TABLE 3

TABLE 4

(possibility of Industrial utilization)

According to the invention, natural curly hair which is naturally relaxed can be prevented from being changed into strong curly hair after oxidation hair dyeing treatment and hair decoloration and decolouring treatment.

Claims (6)

1. An oxidation hair-dyeing composition or a composition for bleaching and bleaching hair, which comprises the following (A) component and, when used, 0.1 to 10 mass% of the following (B) component:

(A) lysine or a salt thereof;

(B) an oily component in solid or paste form at 25 deg.C.

2. The oxidative hair dyeing composition or hair bleach or hair dye removal composition as claimed in claim 1,

contains two or more components (B).

3. The oxidative hair dyeing composition or hair bleaching and depigmenting composition according to claim 1 or 2,

(A) the ratio of the content of the component (A) to the content of the component (B), i.e., (A)/(B), is in the range of 0.005 to 0.7 in use.

4. An oxidative hair dyeing composition or a hair bleaching and depigmenting composition according to any one of claims 1 to 3,

when used, the composition further contains 0.5 to 6.5 mass% of the following component (C):

(C) an oily component which is liquid at 25 ℃.

5. An oxidative hair dyeing composition or a hair bleaching and depigmenting composition according to any one of claims 1 to 4,

(A) the ratio of the content of the component (A) to the sum of the content of the component (B) and the content of the component (C), i.e., (A)/{ (B) + (C) } is in the range of 0.003 to 0.5 when used.

6. The oxidative hair dyeing composition or hair bleaching and depigmenting composition according to any one of claims 1 to 5,

further contains the following (D) component:

(D) an amino acid other than the above-mentioned component (A) or a salt thereof.

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