JP2008247879A - Colorant for hair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a colorant for hair, which does not give chemical damages or the like to hair, is excellent in smoothness and spreadability, when coated, can simply and uniformly dye the hair, does not give uncomfortable senses of use, such as stickiness and stiffness, is also excellent in a secondary adhesion-preventing effect, and is excellent in the persistency and temporal stability of a dyed effect. <P>SOLUTION: This colorant for hair is characterized by compounding the following components (A) to (D); (A) an evaporable hydrocarbon oil agent, (B) an alkyl acrylate-styrene copolymer incompatible with the evaporable hydrocarbon oil agent, (C) a solid oil having a melting point of ≥80°C, and (D) a pigment and/or a dye. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a colorant for hair, and more particularly, a volatile hydrocarbon oil agent, an alkyl acrylate / styrene copolymer that is incompatible with the volatile hydrocarbon oil agent, a solid oil having a melting point of 80 ° C. or more, and a pigment And / or dyes containing hair dyes that have no burden on the hair, are smooth and stretchable when applied, can easily and uniformly color hair, and prevent secondary adhesion Further, the present invention relates to a hair coloring agent that is excellent in color, has no unpleasant feeling of use such as stickiness and wrinkle, and has a long coloring effect and good stability over time.

Cosmetics for coloring or dyeing hair include those called permanent hair dyes and those called temporary hair dyes that temporarily color hair according to the duration of the coloring effect. (For example, see Non-Patent Document 1)
Permanent hair dye is a combination of oxidative dyes and acid dyes, which binds dyes and proteins of hair and oxidizes them to form a water-insoluble color and chemically dyes the hair. However, although the hair dyeing effect does not immediately fade due to friction between hairs or shampoo, the hair dyeing effect lasts for a long time, but it takes time to dye the hair itself, and the two agents are mixed and used at the time of application. In addition, there is a problem of secondary dyeing on hairline, heels, clothes, and the like, and since chemical changes are caused to the hair, damage and burden on the hair are also large.
In order to eliminate these disadvantages, studies have been made to eliminate color retention and secondary dyeing by stably blending hair that can be dyed in a single agent form, film-forming polymer and silicone resin ( For example, see Patent Documents 1 and 2).
In contrast, the latter temporary hair dye (hereinafter sometimes referred to as “hair coloring agent”) changes the hair color by forming a pigment film on the hair by the covering power of the pigment and base. There are dosage forms such as color spray, color foam, etc., and it can be used easily because it can be colored very easily, the burden on the hair is small, and the use site and color tone can be adjusted freely. However, the coloring effect is temporary, and it is washed away with a single shampoo.
"Latest Cosmetic Chemistry" Yodogawa Shoten Supplementary Edition September 25, 1971 Pages 213-220 Japanese Patent No. 3071396 JP-A-10-265354

In this way, permanent hair dyes and temporary hair dyes, both of which are long and short, are used to color hair coloring agents that are intermediate between them, for example, white hair that has faded and noticed, and original hair color for several days. In the situation where hair coloring suitable for (coloring) has not been almost developed, if a film-forming polymer or silicone resin is added to a temporary hair dye with the aim of improving coloring sustainability, it becomes sticky or wrinkled. In addition, the film strength decreased due to friction and shampooing, and the coating film was peeled off or washed away, and the coloring effect did not last.
Therefore, hair coloring that can be easily colored with no burden on the hair, has excellent secondary adhesion prevention effects and feel, and does not lose its color after rubbing or washing several times. Was desired.

  As a result of intensive research to solve the above problems, the present inventor has found that in hair coloring, a volatile hydrocarbon oil agent, an alkyl acrylate / styrene copolymer that is incompatible with the volatile hydrocarbon oil agent, a melting point By blending solid oils, pigments and / or dyes with a temperature of 80 ° C. or higher, there is no damage or burden to the hair that causes chemical changes in the hair and changes the color of the hair, and smoothness during application, A hair colorant that is excellent in spreading, can easily and uniformly color hair, has no stickiness or wrinkle, has excellent secondary adhesion prevention effects, and has good coloration durability and stability over time. As a result, the present invention has been completed.

That is, the present invention includes the following components (A) to (D),
(A) Volatile hydrocarbon oil (B) Alkyl acrylate / styrene copolymer incompatible with volatile hydrocarbon oil of component (A) (C) Solid oil (D) pigment having a melting point of 80 ° C or higher And / or a hair coloring agent characterized by containing a dye.

  The coloring agent for hair of the present invention is capable of easily coloring hair without burdening the hair, is excellent in smoothness and spreading at the time of application, can uniformly color the hair, No stickiness, excellent secondary adhesion prevention effect, excellent coloration durability and stability over time.

The volatile hydrocarbon oil of component (A) used in the hair colorant of the present invention is a hydrocarbon having a boiling point of 260 ° C. or lower at normal pressure, and is particularly limited as long as it can be used in cosmetics. For example, isooctane (2,2,4-trimethylpentane, 2,3-dimethylhexane, etc.), isododecane (2,2,4,6,6-pentamethylheptane, etc.) isohexadecane, A hydrocarbon having a side chain such as isoeicosaene, or a mixture thereof, isobutene, n-butene or the like is polymerized or copolymerized (the degree of polymerization is preferably 4 to 6) and then hydrogenated. Among them, the saturated hydrocarbon oil having a side chain having 4 to 18 carbon atoms has good dispersibility of the alkyl styrene / styrene copolymer that is incompatible with the volatile hydrocarbon oil of component (B), component (A), When applied to the hair, it dries quickly and forms a strong decorative coating film by volatilization, which is more preferable because it provides a non-sticky feeling.
Component (A) can be used singly or in combination of two or more as required, and commercially available products include IP solvent 1620 MU, IP solvent 2028 MU (all manufactured by Idemitsu Petrochemical Co., Ltd.), Isopar ( Esso Chemical Co.), Marcazole R (Maruzen Petrochemical Co., Ltd.) and the like.

  Although the compounding quantity of the component (A) in the coloring agent for hair of this invention is not specifically limited, 10-70 mass% (henceforth "%" only) is preferable, and 30-60% is still more preferable. Within this range, the drying speed is fast, spreads over the hair surface, there is no stickiness or wrinkle, a uniform and smooth colored film is formed, there is no secondary adhesion, and the durability of the coloring effect is satisfactory. Things are obtained.

  In the present invention, the alkyl styrene / styrene copolymer that is incompatible with the volatile hydrocarbon oil of component (A) and the volatile hydrocarbon oil of component (A) that is component (B) is the component (A). A dispersion of an alkyl acrylate / styrene copolymer that is incompatible with the volatile hydrocarbon oil of component (B) in a volatile hydrocarbon. Generally, a non-aqueous dispersion (NAD = Non Aqua Dispersion, non-water) An emulsion is also called the same meaning). Specifically, it is a resin that has a core / shell structure and polymer particles that do not dissolve in an organic medium (corresponding to the core part of the core / shell structure) are stably dispersed to form a particle dispersion system. is there. A feature of NAD is that it has a low viscosity and can be highly solidified as compared with a soluble resin solution.

The component (B) used in the hair colorant of the present invention is an alkyl acrylate / styrene copolymer that is incompatible with the volatile hydrocarbon oil of component (A) (hereinafter referred to as “alkyl acrylate / styrene copolymer”). May be abbreviated as “combination”) to form a supple and flexible film, thus forming a supple and coloring film on the hair surface, preventing secondary adhesion of pigments and / or dyes, It is blended in order to increase the durability of the coloring effect, and can be used without particular limitation as long as it is a copolymer of alkyl acrylate and styrene generally blended in cosmetics. Since the drying speed of the volatile hydrocarbon oil of component (A) is fast, the secondary adhesion preventing effect can be expressed quickly.
Examples of commercially available components (B) include Acrybase MH7057 (manufactured by Fujikura Kasei Co., Ltd.), Joncryl 678 (manufactured by BASF Corp.), Nissetsu U-3700A (manufactured by Nippon Carbide Industries Co., Ltd., 48% solid content), and the like.

  A component (B) can be used 1 type or in combination of 2 or more types as needed, Although the compounding quantity is not specifically limited, 1-50% is preferable and 5-30% is still more preferable. If it is this range, it will spread uniformly on the surface of the hair, a smooth and supple colored film will be formed, and there will be no secondary adhesion, and a satisfactory coloring effect will be obtained.

Furthermore, the component (B) in the present invention is preferably used as a non-aqueous polymer emulsion dispersed in the component (A) using the volatile hydrocarbon oil of component (A) as a dispersion medium.
The average particle size of the dispersed particles when made into a non-aqueous polymer emulsion is preferably 0.1 to 2.0 μm, more preferably 0.5 to 1.0 μm, as measured by a sedimentation method. If it is this range, the effect of component (A) and (B) will be exhibited, without the viscosity of a non-aqueous polymer emulsion becoming high too much, or precipitation of particle | grains arising.
As a commercial example of the non-aqueous polymer emulsion in which the component (B) is dispersed in the component (A), the above-mentioned Nissetsu U-3700A (manufactured by Nippon Carbide Industries Co., Ltd .: light liquid isoparaffin as a solvent and alkyl acrylate / styrene as a solid content) Polymer solid content 48%) and the like.

  The blending amount of the non-aqueous polymer emulsion in which the component (B) is dispersed in the component (A) is not particularly limited, but the non-aqueous polymer emulsion contains 10 to 70% of the solid (B). It is preferable that it is contained especially 40 to 60%. If it is in this range, the elongation at the time of application is light, there is no unpleasant feeling of use such as stickiness and wrinkle, a smooth and supple makeup film is formed, and the durability of the coloring effect due to the film effect is satisfactory. It is done. In addition, it is possible to obtain a product having a fast drying rate and an early effect of preventing secondary adhesion.

  The solid oil in which the melting point of the component (C) used in the hair colorant of the present invention is 80 ° C. or higher is blended in order to increase the persistence of the cosmetic effect, and the melting point is 80 ° C. or higher. If it is solid oil generally used for a material, there will be no restriction | limiting in particular. Specific examples include carnauba wax, polyethylene wax, ethylene / propylene copolymer, synthetic wax, microcrystalline wax, Fischer-Tropsch wax, paraffin wax, ceresin wax, polyethylene wax, ethylene / propylene copolymer, etc. The hydrocarbon wax is more preferable. Commercially available products include purified carnauba wax No. 1 (manufactured by Celalica Noda, melting point: 80-86 ° C.), PERFORMALENE 500 (manufactured by New Phase Technology, melting point: 80-95 ° C.), PERFORMALENE 655 (manufactured by New Phase Technology, melting point: 95-105 ° C.), EP-700 (Baker Petrolite) CIREBELLE 108 (CIREBELLE melting point: 80 ° C), CIREBELLE 109L (CIREBELLE melting point: 90 ° C), Hi-Mic 1090 (Nippon Seiwa Co., Ltd. melting point: 88 ° C), etc. There is. A component (C) can be used 1 type, or 2 or more types as needed.

  Component (C) can be used alone or in combination of two or more as required, and the blending amount is not particularly limited, but is preferably 0.1 to 30%, more preferably 1 to 20%. When the blending amount is within this range, a film formed on the hair surface is excellent in water resistance and oil resistance, and has excellent stability over time and long-lasting coloring effect.

  The pigment and / or dye of component (D) used in the colorant for hair of the present invention is used in combination with other components (A) to (C), so that the pigment and / or dye film is applied to the hair. There is no particular limitation as long as it is formed and blended to coat the hair surface and is generally used in cosmetics. Its shape (spherical, needle-like, plate-like, etc.) and particle size (smoke-like) , Fine particles, pigment grades, etc.) and particle structures (porous, nonporous, etc.) can be used. For example, inorganic red pigments such as iron oxide, iron hydroxide, iron titanate, inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow iron oxide, loess, titanium oxide, zinc oxide, cerium oxide, Inorganic white pigments such as barium sulfate, sintered titanium and titanium oxide, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, chromium oxide, chromium hydroxide, cobalt oxide and titanium Examples include inorganic green pigments such as cobalt acid, and inorganic blue pigments such as bitumen and ultramarine blue. Furthermore, natural pigments such as carminic acid, laccaic acid, calsamine, bradylin, crocin, red 202, red 205, red 226, red 228, orange 203, orange 204, blue 404, yellow 401 Organic pigment powders such as those that have been raked from other tar dyes, those that have been raked from natural dyes, and these powders may be combined or surface treated with oils, silicones, fluorine compounds, etc. The powder may be used.

  Titanium mica, bituminized mica titanium, carmine-treated mica titanium, iron oxide-coated mica, iron oxide-treated mica titanium, titanium oxide-coated mica titanium, titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated oxy Bismuth chloride, titanium oxide coated talc, fish scale foil, titanium oxide coated colored mica, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium oxide containing silicon dioxide, zinc oxide containing silicon dioxide, etc. A composite powder etc. can be illustrated. Illustrative examples of the glittering powder include calcium aluminum borosilicate, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, and the like. Examples of the metal powder pigment include gold powder, silver powder, aluminum powder, copper powder, and stainless steel powder.

  As dyes, black 401, brown 201, purple 401, blue 1, blue 2, blue 203, blue 205, green 3, green 201, green 204, green 205, green 401 , Green 402, Yellow 4, Yellow 5, Yellow 202 (1), Yellow 202 (2), Yellow 203, Yellow 402, Yellow 403 (1), Yellow 406, Yellow 407 , Orange 205, Orange 402, Red 2, Red 3, Red 102, Red 104 (1), Red 105 (1), Red 106, Red 201, Red 227, Red 230 (1), Red 231, Red 401, Red 502, Red 503, Red 504, Red 506 and the like can be exemplified. Further, these dyes may be used as organic pigment powders such as zirconium, barium or aluminum lake. Furthermore, these dyes may be combined, or the combined ones may be surface-treated with an oil agent, silicone, fluorine compound, or the like.

  The pigment and / or dye of component (D) can be used by appropriately selecting one or more as necessary. Among these, titanium oxide, zinc oxide, cerium oxide, barium sulfate, iron oxide, yellow iron oxide, black iron oxide, titanium / titanium oxide sintered product, carbon black, chromium oxide, chromium hydroxide, bitumen, ultramarine blue, black No. 401 is preferred for a more natural hair color.

  Although the compounding quantity of the component (D) in this invention is not specifically limited, 0.001-30% is preferable and 0.1-20% is more preferable. If the blending amount is within this range, there is no damage or burden to the hair as in the so-called hair dye that causes a chemical change in the hair and changes the color of the hair, and a sufficient coloring effect is exhibited and the effect is sustained.

  In addition to the above essential components (A) to (D), the hair colorant of the present invention includes components usually used in cosmetics, that is, oily components, surfactants, powders, water, lower alcohols, many Water alcohol, water-soluble polymer and other aqueous components, moisturizers, sugars, UV absorbers, antioxidants, preservatives, oil-soluble polymers, oil-soluble resins, film-forming agents, cooling agents, pigments, fragrances, etc. It can mix | blend suitably in the qualitative and quantitative range which does not prevent the effect of invention.

  In addition to the component (A), the oily component may be carbonized regardless of properties such as solid oil, semi-solid oil, liquid oil, volatile oil, etc. originating from animal oils, vegetable oils, synthetic oils and the like commonly used in cosmetics. Examples include hydrogens, fats and oils, waxes, hardened oils, ester oils, fatty acids, higher alcohols, silicone oils, fluorine-based oils, lanolin derivatives, and oily gelling agents. Specifically, hydrocarbons such as liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene, fats and oils such as owl, olive oil, castor oil, mink oil, macadamian nut oil, waxes such as beeswax and gay wax, Glyceryl trioctanoate, polyglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, neopentyl glycol dioctanoate, neopentyl glycol dioctanoate, Esters such as cholesterol fatty acid esters, phytosterol fatty acid esters, triglycerides, stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, orange Fatty acids such as inic acid, higher alcohols such as stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, and behenyl alcohol, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane , Trimethylsiloxysilicic acid, high degree of polymerization methylphenyl polysiloxane, cross-linked methyl polysiloxane, polyoxyalkyl-modified organopolysiloxane, cross-linked polyether-modified methyl polysiloxane, methacryl-modified polysiloxane, stearyl-modified methyl polysiloxane, oleyl-modified Methylpolysiloxane, behenyl-modified methylpolysiloxane, polyvinylpyrrolidone-modified methylpolysiloxane, high degree of polymerization Polysiloxane, polyoxyalkylene / alkylmethylpolysiloxane / methylpolysiloxane copolymer, alkoxy-modified polysiloxane, cross-linked organopolysiloxane, silicone such as fluorine-modified polysiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, Low molecular chain polysiloxanes such as dodecamethylcyclopentasiloxane, low polymerization dimethylpolysiloxane, low molecular cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, perfluorodecane, perfluorooctane, Fluorinated oils such as fluoropolyether, lanolin, lanolin acetate, lanolin fatty acid isopropyl, lanolin derivatives such as lanolin alcohol, sucrose fatty acid ester, starch fatty acid ester Examples thereof include oily gelling agents such as tellurium, aluminum isostearate, potassium stearate, 12-hydroxystearic acid, and the like, and one or more of them can be used.

  In addition to the component (D), the powder component may be a powder generally used in cosmetics, a spherical shape, a plate shape, a needle shape, a mist shape, a fine particle, a particle size such as a pigment class, a porous There is no particular limitation depending on the particle structure such as quality and non-porous, and examples include inorganic powders, glitter powders, organic powders, pigment powders, metal powders, composite powders, and the like. . Specific examples include muscovite, phlogopite, saucite, biotite, synthetic mica, sericite (sericite), talc, synthetic sericite, kaolin, silicon carbide, bentonite, smectite, silicic anhydride, aluminum oxide , Magnesium oxide, zirconium oxide, antimony oxide, siliceous earth, aluminum silicate, magnesium aluminum silicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, etc. In addition to powders, polyamide resins, polyethylene resins, polyacrylic resins, polyester resins, fluorine resins, cellulose resins, polystyrene resins, copolymers such as acrylic-urethane copolymer resins, acrylic-vinyl acetate resins, and the like Or polymer resin Organic polymer resin powder such as polypropylene resin, silicone resin, urethane resin, organic low molecular weight powder such as zinc stearate, N-acyl lysine, natural organic powder such as silk powder, cellulose powder, etc. These powders may be used singly or in combination of two or more, and may be used in combination.

  As the surfactant, any surfactant that is generally used in cosmetics can be used. Nonionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant Etc. For example, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, sucrose fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyalkylene alkyl co-modified Examples thereof include organopolysiloxane, polyether-modified organopolysiloxane, and lecithin.

  As the film-forming component, any of water-soluble resins and oil-soluble resins can be used. Examples of the water-soluble resin include polyvinyl alcohol, polyvinyl pyrrolidone, vinyl pyrrolidone / vinyl acetate copolymer, hydroxyethyl cellulose, vinyl pyrrolidone / styrene copolymer, sodium polyacrylate, and the like. Examples of the oil-soluble resin include rosin acid-based resins such as rosin acid pentaerythritol, trimethylsiloxysilicic acid, acrylic-modified silicone, polyvinyl isobutyl ether, polyisobutylene, and the like.

  The aqueous component may be any component as long as it is soluble in water and water, such as lower alcohols such as ethyl alcohol and butyl alcohol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, polyethylene glycol and the like. Examples thereof include polyhydric alcohols such as glycols, glycerols such as glycerol, diglycerol and polyglycerol. Furthermore, an aqueous component may be an extract from a water-soluble extraction solvent of a plant such as hot spring water, deep sea water, rose water, lavender water, aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, or rose. Furthermore, as water-soluble polymers, natural products such as guar gum, sodium chondroitin sulfate, sodium hyaluronate, gum arabic, sodium alginate, carrageenan, semi-synthetic materials such as methylcellulose, carboxymethylcellulose, carboxyvinyl polymer, alkyl A synthetic system such as an addition carboxyvinyl polymer, or a moisturizing agent such as protein, mucopolysaccharide, collagen, elastin, or keratin can be added.

Examples of the ultraviolet absorber include benzophenone, PABA, cinnamic acid, salicylic acid, 4-tert-butyl-4′-methoxydibenzoylmethane, oxybenzone, and the like.
As antioxidants, for example, α-tocopherol, ascorbic acid and their derivatives and salts, etc., as cosmetic ingredients, for example, vitamins, anti-inflammatory agents, herbal medicines other than the above, as antiseptics, for example, Paraoxybenzoic acid ester, phenoxyethanol and the like can be mentioned.

  Although the manufacturing method of the coloring agent for hair of this invention is not specifically limited, For example, after melt | dissolving and mixing solid oil whose melting | fusing point of a component (C) is 80 degreeC or more at high temperature, the volatility of a component (A) By dispersing the component (B) alkyl acrylate / styrene copolymer in the hydrocarbon oil agent, dispersing the component (D) pigment and / or dye, mixing, cooling and filling the container. can get.

The dosage form of the hair coloring agent of the present invention includes a substantially non-aqueous (oil-based) system mainly composed of a liquid, semi-solid or solid oil agent or an oil-soluble compound, or an aqueous component in an oil component. A non-emulsified system in which the components are dispersed can be used, but the former substantially non-aqueous (oil-based) system is preferable. A substantially non-aqueous system is more preferable because the elongation at the time of application is light, smooth, and the drying speed is fast, so that the secondary adhesion preventing effect can be realized quickly.
The shape can also be prepared without limitation, such as stick, paste, cream, etc., and may be of the type poured into a container such as a dish. Moreover, it can be used not only as a coloring agent for hair, but also as a hair cosmetic for hair protection / repair having a hair coloring effect as a hair pack, a hair styling agent, a hair nourishing agent and the like.

  EXAMPLES Next, although an Example is given and this invention is demonstrated still in detail, this invention is not limited at all by these.

Examples 1 to 9 and Comparative Examples 1 to 6: Hair colorant (cream)
A hair colorant having the formulation shown in Table 1 below was prepared and evaluated for uniform and smooth elongation spread, secondary adhesion prevention effect, persistence of coloring effect, no stickiness and stiffness, and stability over time by the following methods. . The results are also shown in Table 1.

* 1: Pine Crystal KE-311 (Arakawa Chemical Industries)
* 2: IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)
* 3: Nissetsu U-3700A (manufactured by Nippon Carbide Industries Co., Ltd .: Light liquid isoparaffin as solvent, alkyl acrylate / styrene copolymer as solid content 48% solid content)
* 4: Nissetsu U-4315B (manufactured by Nippon Carbide Industries Co., Ltd .: light liquid isoparaffin as solvent, alkyl acrylate / vinyl acetate copolymer as solid content 51% solid content)
* 5: PERFORMALENE 500 (manufactured by New Phase Technology, Inc., melting point: 80-95 ° C.)
* 6: Refined carnauba wax no. 1 (manufactured by Celalica Noda, melting point: 80-86 ° C)
* 7: MULTIWAX W-835 (manufactured by SONNEBORN, INC. Melting point: 74-79 ° C.)
* 8: FLAMENCO SPARKLE GOLD 220J (manufactured by Engelhard)
* 9: AEROSIL 200 (Nippon Aerosil Co., Ltd. average particle size: 10-15 nm)
(Manufacturing method)
A. Ingredients (1) to (9) are heated to about 100 ° C. and mixed uniformly.
B. Ingredients (10) to (18) are mixed uniformly.
C. Add B to A and mix evenly.
D. C was filled into a container to obtain a hair coloring agent.

(Evaluation methods)
The following evaluation items were evaluated by the following methods.
(Evaluation item)
(A) Uniform and smooth expansion and spread (b) Secondary adhesion prevention effect (c) Persistence of coloring effect (d) No stickiness or stiffness (e) Stability over time (a) to (d) For each sample, a 20-special panel use test is performed on each sample, and each panel member evaluates it according to the following 7 absolute ratings and gives a score. The average value is calculated from the total score of all panel members for each sample. The determination was made according to the following four-step criteria. Regarding the secondary adhesion prevention effect of (b), each sample was applied to the hair, and the panel had a normal life. (I) It evaluated by. Regarding the sustainability of coloring in (c), each sample was applied to the hair, and the panel was washed daily, and the coloring effect after 3 days was evaluated.
The stability over time of (e) is as follows. After standing for 6 months at room temperature and 40 ° C., visually confirming the waste liquid state of each sample, shaking 5 times, comparing with the time of preparation, the following four-stage evaluation criteria ( (B) was evaluated and judged.

Absolute Evaluation Criteria (Score): (Evaluation)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad

Four-step criteria (I)
(Judgment): (Average score)
◎: Over 5 points ○: Over 3 points and 5 points or less △: Over 1 point and 3 points or less ×: 1 point or less

(E) Stability evaluation over time 4-step criteria (b)
◎: Leave at room temperature and 40 ℃, no change without drainage ○: Slight drainage is seen with the product left at 40 ℃, but there is no problem with hardness when shaken △: Small amount of drainage with the product left at 40 ℃ Although it is seen, it is a little hard when shaken.
X: The drainage was clearly seen in the product left at 40 ° C., and there was no change even when shaken, and it was hard.

As is apparent from the results in Table 1, the hair colorants of Examples 1 to 9 of the present invention have no burden on hair compared to the hair colorants of Comparative Examples 1 to 6, and are smooth when applied. Excellent stretch spread, can easily and uniformly color hair, has no unpleasant feeling of use such as stickiness and wrinkle, has excellent secondary adhesion prevention effect, good coloration durability and stability over time there were.
On the other hand, in Comparative Example 1 in which decamethylcyclopentasiloxane, which is a volatile oil other than the hydrocarbon oil agent, was used instead of the component (A), there was stickiness and stiffness, and the non-volatile oil agent 2-ethylhexane was used. Comparative Example 2 containing cetyl acid was still sticky and wrinkled, and was inferior in the secondary adhesion preventing effect and the durability of the coloring effect.
Comparative Example 3 in which component (B) was not blended had poor film-forming ability, so was inferior in the secondary adhesion preventing effect, and was washed off with a single shampoo and lacked durability of the coloring effect. Further, in Comparative Example 4 in which a copolymer other than the component (B) was blended in place of the component (B), stickiness and stiffness were felt.
Furthermore, in Comparative Example 5 in which the component (C) is not blended, satisfactory results are not obtained particularly in terms of sustaining the coloring effect and stability over time, and instead of the component (C), the melting point is 80 ° C. or less. In Comparative Example 6 in which the crystallin wax was blended, there were stickiness and wrinkle, and a satisfactory one was not obtained in terms of stability over time.

Example 10: Coloring agent for gel-like hair
(Ingredient) (%)
1. Polyethylene wax * 10 2
2. Volatile hydrocarbon oil * 2 60
3. Alkyl acrylate / styrene copolymer * 3 11.8
4). Dextrin palmitate 8
5. 5. Talc remaining amount Yellow iron oxide 0.3
7). Black iron oxide 5
8). Red iron oxide 0.2
9. p-Methoxycinnamic acid-2-ethylhexyl 3
10. Mica 0.1
11. Preservative appropriate amount 12. Perfume appropriate amount * 10: PERFORMALENE 655 (manufactured by New Phase Technology, Inc., melting point: 95-105 ° C.)

(Production method)
A: The component (1) is dissolved at 120 ° C.
B: Components (2) to (12) are added to component A and mixed uniformly.
C: B was filled into a tube and cooled to obtain a gel hair coloring agent.
The gel-like hair coloring agent of Example 10 has no burden on the hair, is excellent in smoothness and spreading at the time of application, can easily and uniformly color hair, and is unpleasant in use such as stickiness and wrinkle It was a good gel-like hair coloring agent with no feeling, excellent secondary adhesion prevention effect, excellent coloration durability and stability over time.

Example 11: Solid hair colorant (component) (%)
1. Refined carnauba wax * 6 2
2. Polyethylene wax * 5 12
3. Polybutene * 11 2
4). Beeslow 0.5
5. 5. Glyceryl tri-2-ethylhexanoate Liquid paraffin 5
7). Volatile hydrocarbon oil * 12 40
8). Alkyl acrylate / styrene copolymer * 3 19
9. Nylon powder 3
10. Silicone-treated talc * 13 3.5
11. Red No. 202 0.05
12 Yellow No. 4 aluminum lake 0.05
13. Blue No. 1 aluminum rake 0.05
14 Mica titanium 1.5
15. Yellow iron oxide 0.3
16. Black iron oxide 5
17. Red iron oxide 0.2
18. Mica 0.1
19. Preservative appropriate amount20. Perfume appropriate amount * 11: average molecular weight 2650
* 12: IP solvent 2028 (made by Idemitsu Petrochemical Co., Ltd.)
* 13: Dimethylpolysiloxane 5% treatment

(Production method)
A: Components (1) to (6) are dissolved and mixed at 100 ° C.
B: Components (7) to (20) are added to A and mixed and dispersed uniformly.
C: B was poured into a metal pan and solidified by cooling to obtain a solid hair coloring agent.
The solid hair coloring agent of Example 11 has no burden on the hair, is excellent in smoothness and spreading at the time of application, can easily and uniformly color hair, and is unpleasant in use such as stickiness and wrinkle There was no feeling, it was excellent in the secondary adhesion preventing effect, and it was a good solid hair colorant excellent in the durability of the coloring effect and the stability over time.

Example 12: Hair dye overcoat (component) (%)
(1) Light liquid isoparaffin * 2 19.5
(2) Alkyl acrylate / styrene copolymer * 3 10
(3) Glyceryl trioctanoate 5
(4) Polyethylene wax * 5 10
(5) POE (80) hydrogenated castor oil * 14 1.5
(6) POE (5) Palm oil fatty acid monoethanolamide * 15 0.2
(7) Sodium palmitate 2
(8) Silicone-treated mica titanium * 16 10
(9) Mica remaining amount (10) Iron oxide 5
(11) Glycerin 10
(12) Purple 401 5
* 14: HCO-80 (Nihon Surfactant HLB15)
* 15: Amidette 5C (manufactured by Kawaken Fine Chemical Co., Ltd.)
* 16: Dimethylpolysiloxane 2% treatment: FLAMENCO BLUE 620C (manufactured by Engelhard)

(Production method)
A. Ingredients (1) to (8) are heated and mixed at about 110 ° C. to make it uniform.
B. Ingredients (9) to (12) are heated and mixed at about 90 ° C. to be uniform.
C. Add B to A and mix uniformly.
D. C was filled into a container to obtain a gray hair overcoat.
The gray hair dye overcoat of Example 12 obtained as described above is used for hair after dyeing gray hair, and can be applied easily and uniformly to the hair with a smooth spread. It was a good gray hair dye overcoat that had no unpleasant feeling of use such as wrinkles and was excellent in stability over time, and was able to maintain the effect of white hair dyeing.

Claims (5)

The following components (A) to (D),
(A) Volatile hydrocarbon oil (B) Alkyl acrylate / styrene copolymer incompatible with volatile hydrocarbon oil of component (A) (C) Solid oil (D) pigment having a melting point of 80 ° C or higher And / or a hair colorant characterized by containing a dye. The hair colorant according to claim 1, wherein the component (A) is a volatile hydrocarbon oil carbon having 4 to 18 carbon atoms. The hair according to claim 1 or 2, wherein the component (B) is a non-aqueous polymer emulsion having the component (A) as a dispersion medium, and the average particle size of the emulsion is 0.1 to 2.0 µm. For coloring. The colorant for hair according to any one of claims 1 to 3, wherein the solid oil whose component (C) has a melting point of 80 ° C or higher is a hydrocarbon wax. The coloring agent for hair according to any one of claims 1 to 4, wherein the coloring agent for hair is an oily cosmetic.