Composition for keratin fibers

Abstract

To provide a composition for keratin fibers that enables coloration or dyeing of keratin fibers while restricting lightening or brightening of the keratin fibers.SOLUTION: The present invention provides a composition for keratin fibers that comprises: (a) at least one oxidizing agent; (b) phosphoric acid; and (c) at least one salt of phosphoric acid excluding disodium phosphate. A mass ratio of an amount of (b) phosphoric acid to an amount of (c) the salt of phosphoric acid excluding disodium phosphate, and the sum total of the amount of (b) phosphoric acid and the amount of (c) the salt of phosphoric acid excluding disodium phosphate, are in a range of 5.2 to 7.0, where these amounts are determined based on mass percentage (%) relative to the total mass of the composition. The inventive composition enables coloration or dyeing of keratin fibers such as hair through restriction on lightening or brightening of the keratin fibers.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a composition for keratin fibers, and more particularly to a composition for coloring or dyeing keratin fibers such as hair.

Background Art

[0002] It is known to dye keratin fibers, in particular hair, using a dyeing composition containing an oxidation base, generally called an oxidation coloring precursor, such as ortho- or para-phenylenediamines, ortho- or para-aminophenols and heterocyclic compounds. These oxidation bases are generally combined with a coupler. These oxidation bases and couplers are colorless or weakly colored compounds. However, when combined with an oxidizing agent, they can impart colored dye molecules through an oxidative condensation process.

[0003] This type of coloring by oxidation, i.e., oxidation dyeing, allows for very high visibility, coverage of white hair, and obtaining colors with a variety of shades. Oxidation dyeing is widely used because it has a higher color uptake compared to direct dyeing using so-called direct dyes.

[0004] To carry out oxidation dyeing, typically, a composition containing an oxidation base and a coupler is mixed with a developer composition containing an oxidizing agent together with an alkaline agent to prepare a ready-to-use composition, which is then applied onto the keratin fibers to dye the keratin fibers.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

[0006] [Non-Patent Document 1] Walter Noll, "Chemistry and Technology of Silicones" (1968), Academic Press [Non-Patent Document 2] Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27 - 32, Todd & Byers, Volatile Silicone Fluids for Cosmetics [Non-Patent Document 3] ASTM Standard 445 Appendix C [Non-Patent Document 4] M. R. Porter, "Handbook of Surfactants", Blackie & Son publishers (Glasgow and London), 1991, pp. 116 - 178 [Summary of the Invention] [Problems to be Solved by the Invention]

[0007] In recent years, due to the trend of bleaching, the hair of some consumers has inevitably become brighter or lighter. Therefore, there is a need for a hair cosmetic that can dye the hair of consumers without further brightening or lightening it.

[0008] Therefore, an object of the present invention is to provide a composition for keratin fibers that can color or dye keratin fibers while restricting brightening or lightening of the keratin fibers.

Means for Solving the Problems

[0009] The above object is achieved by (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate comprising a composition for keratin fibers, (b) the mass ratio of the amount of phosphoric acid / (c) the amount of the salt of phosphoric acid excluding disodium phosphate and (b) the total of the amount of phosphoric acid + (c) the amount of the salt of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the composition, and can be achieved by the composition.

[0010] (a) The oxidizing agent may be hydrogen peroxide.

[0011] The amount of (a) the oxidizing agent in the composition according to the present invention may be 0.1% by mass to 30% by mass, preferably 0.3% by mass to 25% by mass, more preferably 0.5% by mass to 20% by mass with respect to the total mass of the composition.

[0012] The amount of (b) phosphoric acid in the composition according to the present invention may be 0.1% by mass to 20% by mass, preferably 0.3% by mass to 15% by mass or less, more preferably 5% by mass to 10% by mass or less, based on the total mass of the composition.

[0013] (c) The phosphate of phosphoric acid may be sodium dihydrogen phosphate.

[0014] The amount of the phosphate of phosphoric acid excluding sodium diphosphate in the composition according to the present invention may be 0.1% by mass to 20% by mass, preferably 0.3% by mass to 15% by mass or less, more preferably 0.5% by mass to 10% by mass or less, based on the total mass of the composition.

[0015] The composition according to the present invention may further contain (d) water.

[0016] The amount of (d) water in the composition according to the present invention may be 30% by mass to 80% by mass, preferably 40% by mass to 70% by mass, based on the total mass of the composition.

[0017] The composition according to the present invention may further contain (e) at least one kind of oil.

[0018] The amount of (e) oil in the composition according to the present invention may be 0.1% by mass to 40% by mass, preferably 0.5% by mass to 35% by mass, more preferably 1% by mass to 30% by mass, based on the total mass of the composition.

[0019] The composition according to the present invention may further contain (f) at least one kind of aliphatic alcohol.

[0020] The amount of (f) aliphatic alcohol in the composition according to the present invention may be 0.1% by mass to 20% by mass, preferably 0.5% by mass to 15% by mass, more preferably 1% by mass to 10% by mass, based on the total mass of the composition.

[0021] The composition according to the present invention may further contain (g) at least one kind of nonionic surfactant.

[0022] The composition according to the present invention may be a cosmetic composition for keratin fibers, preferably a cosmetic composition for coloring keratin fibers, more preferably a cosmetic composition for coloring hair.

[0023] The present invention also relates to a method for treating, preferably coloring, keratin fibers such as hair, (1) A step of preparing a mixture by mixing a first composition and a second composition, wherein the first composition comprises (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate and the mass ratio of the amount of (b) phosphoric acid / the amount of the salt of phosphoric acid excluding disodium phosphate and the total of the amount of (b) phosphoric acid + the amount of the salt of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the first composition, the second composition comprises (h) at least one alkaline agent, and optionally (i) at least one dye, a step, (2) A step of applying the mixture to the keratin fibers and

Mode for Carrying Out the Invention

[0024] As a result of intensive studies, the present inventors have found that it is possible to provide a composition for keratin fibers that can color or dye keratin fibers while restricting brightening or lightening of the keratin fibers.

[0025] Therefore, the composition according to the present invention comprises (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate including (b) the amount of phosphoric acid / (c) the mass ratio of the amount of salts of phosphoric acid excluding disodium phosphate and (b) the total amount of the amount of phosphoric acid + (c) the amount of salts of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the composition.

[0026] The composition according to the present invention can color or dye keratin fibers such as hair while restricting the brightening or lightening of the keratin fibers. In other words, the composition according to the present invention can color or dye keratin fibers such as hair without a significant increase in the brightness or lightness of the keratin fibers.

[0027] The composition according to the present invention can be used as a cosmetic composition for keratin fibers such as hair, preferably as a cosmetic composition for coloring or dyeing keratin fibers, more preferably as a cosmetic composition for oxidative dyeing of keratin fibers.

[0028] Furthermore, the composition according to the present invention can impart a good appearance such as good luster to keratin fibers such as hair. Therefore, the composition according to the present invention can color or dye keratin fibers while improving the appearance such as the luster of the keratin fibers.

[0029] Furthermore, the composition according to the present invention can also impart an improved touch feeling, for example, enhanced softness and / or smoothness to keratin fibers such as hair. Therefore, the composition according to the present invention can color or dye keratin fibers while enhancing the softness and / or smoothness of the keratin fibers.

[0030] Hereinafter, the present invention will be described in detail.

[0031] [Composition] (Oxidizing agent) The composition according to the present invention contains (a) at least one oxidizing agent. When two or more oxidizing agents are used, they may be the same or different.

[0032] (a) The oxidizing agent can be selected from hydrogen peroxide, peroxidized salts, and compounds capable of generating hydrogen peroxide by hydrolysis. For example, (a) the oxidizing agent can be selected from hydrogen peroxide, urea peroxide, alkali metal bromates and ferricyanides, and perborates and persulfates such as peracid salts. For example, at least one oxidase enzyme selected from laccase, peroxidase and 2-electron oxidoreductase, such as uricase, can also be used as (a) the oxidizing agent when appropriate in the presence of their respective donors or cofactors.

[0033] (a) It is preferable that the oxidizing agent is hydrogen peroxide.

[0034] In one embodiment, the composition according to the present invention may contain at least one hydrogen peroxide stabilizer, which can be selected, for example, from alkali metal and alkaline earth metal pyrophosphates, alkali metal and alkaline earth metal stannates, phenacetin, and salts of an acid and oxyquinoline, such as oxyquinoline sulfate. In another embodiment, at least one stannate optionally combined with at least one pyrophosphoric acid salt is used. It is also possible to use salicylic acid and its salts, pyridinedicarboxylic acid and its salts, and paracetamol.

[0035] In the composition according to the present invention, the concentration of the hydrogen peroxide stabilizer may be in the range of 0.0001% by mass to 5% by mass, for example 0.01% by mass to 2% by mass, based on the total mass of the composition.

[0036] In the composition according to the present invention, the concentration ratio of hydrogen peroxide to at least one possible stabilizer may be in the range of 0.05:1 to 1,000:1, for example 0.1:1 to 500:1, and further for example 1:1 to 200:1.

[0037] The amount of the oxidizing agent (a) in the composition according to the present invention may be 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.5% by mass or more, based on the total mass of the composition.

[0038] The amount of the oxidizing agent (a) in the composition according to the present invention may be 30% by mass or less, preferably 25% by mass or less, more preferably 20% by mass or less, based on the total mass of the composition.

[0039] The amount of the oxidizing agent (a) in the composition according to the present invention may be from 0.1% by mass to 30% by mass, preferably from 0.3% by mass to 25% by mass, more preferably from 0.5% by mass to 20% by mass, based on the total mass of the composition.

[0040] (Phosphoric acid) The composition according to the present invention contains (b) phosphoric acid.

[0041] (b) Phosphoric acid is an inorganic acid and can be referred to as orthophosphoric acid. (b) Phosphoric acid can be represented as H3PO4.

[0042] The amount of the phosphoric acid (b) in the composition according to the present invention may be 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.5% by mass or more, based on the total mass of the composition.

[0043] The amount of the phosphoric acid (b) in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0044] The amount of the phosphoric acid (b) in the composition according to the present invention may be from 0.1% by mass to 20% by mass, preferably from 0.3% by mass to 15% by mass, more preferably from 0.5% by mass to 10% by mass, based on the total mass of the composition.

[0045] (Phosphate) The composition according to the present invention contains at least one salt of phosphoric acid excluding (c) disodium phosphate (Na2HPO4). When two or more such salts are used, they may be the same or different.

[0046] (c) The salt of phosphoric acid excluding disodium phosphate may be an inorganic salt, such as an alkali metal salt, such as a sodium phosphate salt and a potassium phosphate salt, or an ammonium salt. It is preferable that the salt of phosphoric acid excluding (c) disodium phosphate is monosodium phosphate (NaH2PO4).

[0047] (c) The salt of phosphoric acid excluding disodium phosphate may be in the form of an anhydride, or a hydrate such as a monohydrate and a dihydrate.

[0048] The amount of the salt of phosphoric acid excluding (c) disodium phosphate in the composition according to the present invention may be 0.1% by mass or more, preferably 0.3% by mass or more, more preferably 0.5% by mass or more, based on the total mass of the composition.

[0049] The amount of the salt of phosphoric acid excluding (c) disodium phosphate in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0050] The amount of the salt of phosphoric acid excluding (c) disodium phosphate in the composition according to the present invention may be 0.1% by mass to 20% by mass, preferably 0.3% by mass to 15% by mass, more preferably 0.5% by mass to 10% by mass, based on the total mass of the composition.

[0051] (Condition) In the composition according to the present invention, (b) Mass ratio of the amount of phosphoric acid / the amount of the salt of phosphoric acid excluding (c) disodium phosphate and (b) Total of the amount of phosphoric acid + the amount of the salt of phosphoric acid excluding (c) disodium phosphate The sum of It is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the composition.

[0052] The amount can be expressed in mass percent.

[0053] When the above conditions are satisfied, the composition according to the present invention can color or dye keratin fibers such as hair while restricting the brightening or lightening of the keratin fibers.

[0054] Furthermore, when the above conditions are satisfied, the composition according to the present invention can also bring good luster to keratin fibers such as hair.

[0055] (Water) Preferably, the composition according to the present invention may contain (d) water.

[0056] (d) Water can constitute, for example, an aqueous phase that can be a continuous phase in the composition according to the present invention.

[0057] The amount of (d) water in the composition according to the present invention may be 30% by mass or more, preferably 40% by mass or more, based on the total mass of the composition.

[0058] The amount of (d) water in the composition according to the present invention may be 80% by mass or less, preferably 70% by mass or less, based on the total mass of the composition.

[0059] The amount of (d) water in the composition according to the present invention may be 30% to 80% by mass, preferably 40% to 70% by mass, based on the total mass of the composition.

[0060] (pH) The composition according to the present invention may have a pH of 1.0 to less than 7.0, preferably 1.1 to 5.0, more preferably 1.2 to 3.5, measured at 25°C.

[0061] (Oil) The composition according to the present invention may contain (e) at least one oil. When two or more oils are used, they may be the same or different.

[0062] As used herein, "oil" means a fatty compound or fatty substance in the form of a liquid or paste (non-solid) at room temperature (25 °C) under atmospheric pressure (760 mmHg). As (e) the oil, those commonly used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0063] (e) The oil may be a non-polar oil such as a hydrocarbon oil or a silicone oil; a polar oil such as a vegetable oil or an animal oil, and an ester oil or an ether oil; or a mixture thereof.

[0064] (e) The oil can be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, and hydrocarbon oils.

[0065] Examples of vegetable oils that can be mentioned are, for example, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, southernwood oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0066] Examples of synthetic oils that can be mentioned are alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0067] The ester oil is preferably a liquid ester of a saturated or unsaturated, linear or branched C1-C 26 fatty monocarboxylic acid or polycarboxylic acid and a saturated or unsaturated, linear or branched C1-C 26 fatty monohydric alcohol or polyhydric alcohol, and the total number of carbon atoms of these esters is 10 or more.

[0068] Preferably, in the esters of monoalcohols, at least one of the alcohol and the acid from which the ester of the present invention is derived is branched.

[0069] Among the monoesters of monocarboxylic acids and monoalcohols, examples include ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristate, such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, and isostearyl neopentanoate.

[0070] C4 - C 22 esters of dicarboxylic acids or tricarboxylic acids and C1 - C 22 alcohols, and esters of monocarboxylic acids, dicarboxylic acids or tricarboxylic acids and non-sugar C4 - C 26 di-, tri-, tetra- or pentahydroxyalcohols can also be used.

[0071] Particularly notable examples include diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, and diethylene glycol diisononanoate.

[0072] As the ester oil, C6 - C 30 of, preferably C 12 - C 22Fatty acid sugar esters and diesters can be used. It is recalled that the term "sugar" means a hydrocarbon compound containing several alcohol functional groups, having at least 4 carbon atoms, and retaining oxygen, regardless of the presence or absence of aldehyde or ketone functional groups. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0073] Examples of suitable sugars that can be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and their derivatives, especially alkyl derivatives, such as methyl derivatives, for example methyl glucose.

[0074] The sugar esters of fatty acids can be particularly selected from the group consisting of esters or ester mixtures of the aforementioned sugars with linear or branched, saturated or unsaturated C6 - C 30 , preferably C 12 - C 22 fatty acids. When they are unsaturated, these compounds can have 1 - 3 conjugated or non - conjugated carbon - carbon double bonds.

[0075] The esters according to this variant can also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0076] These esters can be, for example, oleic acid esters, lauric acid esters, palmitic acid esters, myristic acid esters, behenic acid esters, coconut fatty acid esters, stearic acid esters, linoleic acid esters, linolenic acid esters, capric acid esters and arachidonic acid esters, or mixtures thereof, for example, especially mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0077] More specifically, the mono-esters and di-esters used are, among others, the mono-oleic acid esters or di-oleic acid esters, stearic acid esters, behenic acid esters, oleopalmitic acid esters, linoleic acid esters, linolenic acid esters and oleostearic acid esters of sucrose, glucose or methylglucose.

[0078] An example that can be cited is the product sold by Amerchol under the name Glucate(registered trademark)DO, which is methylglucose dioleate.

[0079] Examples of preferred ester oils that can be cited are, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, (caprylic acid / capric acid) 2-ethylhexyl, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0080] Examples of artificial triglycerides that can be cited are, for example, caprylyl capric glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(capric acid / caprylic acid) and glyceryl tri(capric acid / caprylic acid / linolenic acid).

[0081] Examples of silicone oils that can be cited include, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc.; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.; and mixtures thereof.

[0082] Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxane (PDMS), and liquid polyorganosiloxanes containing at least one aryl group.

[0083] These silicone oils may also be organically modified. The organically modified silicones that can be used according to the present invention are silicone oils as defined above, which contain one or more organic functional groups bonded via hydrocarbon-based groups in their structures.

[0084] Organopolysiloxanes are defined in more detail in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academic Press. They may be volatile or non-volatile.

[0085] When they are volatile, the silicones are more specifically selected from those having a boiling point between 60°C and 260°C, and even more specifically from the following: (i) Cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5 silicon atoms. These include, for example, octamethylcyclotetrasiloxane sold by Union Carbide under the name Volatile Silicone® 7207, or by Rhodia under the name Silbione® 70045 V2, decamethylcyclopentasiloxane sold by Union Carbide under the name Volatile Silicone® 7158, by Rhodia under the name Silbione® 70045 V5, and dodecamethylcyclopentasiloxane sold by Momentive Performance Materials under the name Silsoft 1217, and mixtures thereof. Also mentionable are cyclocopolymers of the type dimethylsiloxane / methylalkylsiloxane of the formula:

[0086] [Chemical formula]

[0087] such as Silicone Volatile® FZ 3109 sold by Union Carbide. Also mentionable are mixtures of cyclic polydialkylsiloxanes and organosilicon compounds, for example, a mixture (50 / 50) of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol, and a mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane. (ii) Containing 2 to 9 silicon atoms and having a viscosity of 5×10 -6 m 2Linear volatile polydialkylsiloxanes having viscosities below / s. An example is decamethyltetrasiloxane, sold under the name SH 200, in particular by Toray Silicone. Silicones belonging to this classification are also described in the article published in Cosmetics and Toiletries, Vol. 91, January 1976, pages 27 - 32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicone is measured at 25 °C according to ASTM standard 445 Appendix C.

[0088] Non - volatile polydialkylsiloxanes may also be used. These non - volatile silicones are more particularly selected from polydialkylsiloxanes, among which mainly mention may be made of polydimethylsiloxanes containing trimethylsilyl end groups.

[0089] Among these polydialkylsiloxanes, non - limiting examples are the following commercially available products: - The 47 and 70047 series of Silbione® oil or Mirasil® oil sold by Rhodia, for example 70047 V 500 000 oil, - The oils of the Mirasil® series sold by Rhodia, - The 200 series of oils from Dow Corning, for example DC200 having a viscosity of 60,000 mm 2 / s, - Viscasil® oil from General Electric, and certain oils of the SF series from General Electric (SF 96, SF 18).

[0090] Also mention may be made of polydimethylsiloxanes containing dimethylsilanol end groups, known under the name dimethiconol (CTFA), for example the oils of the 48 series from Rhodia.

[0091] Among silicones containing an aryl group, there are polydiarylsiloxanes, especially polydiphenylsiloxane and polyalkylarylsiloxane. Examples that can be cited include products sold under the following names: - The 70 641 series of Silbione® oil manufactured by Rhodia, - The 70 633 series and 763 series of Rhodorsil® oil manufactured by Rhodia, - Dow Corning 556 Cosmetic Grade Fluid oil manufactured by Dow Corning, - The PK series of silicones manufactured by Bayer, such as product PK20, - Specific oils of the SF series manufactured by General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0092] The organically modified liquid silicone may contain, among others, a polyethyleneoxy group and / or a polypropyleneoxy group. Therefore, silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and Silwet® L722 oil and L77 oil manufactured by Union Carbide can be cited.

[0093] The hydrocarbon oil can be selected from the following: - Linear or branched, optionally cyclic C6-C 16 lower alkanes. Examples that can be cited include hexane, undecane, dodecane, tridecane, and isoparaffin, such as isohexadecane, isododecane and isodecane; and - Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

[0094] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, petrolatum or petroleum jelly, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymer; and mixtures thereof.

[0095] (e) Preferably, the oil is selected from ester oils, hydrocarbon oils, and mixtures thereof.

[0096] The amount of the (e) oil in the composition according to the present invention may be 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, based on the total mass of the composition.

[0097] The amount of the (e) oil in the composition according to the present invention may be 40% by mass or less, preferably 35% by mass or less, more preferably 30% by mass or less, based on the total mass of the composition.

[0098] The amount of the (e) oil in the composition according to the present invention may be 0.1% by mass to 40% by mass, preferably 0.5% by mass to 35% by mass, more preferably 1% by mass to 30% by mass, based on the total mass of the composition.

[0099] (Aliphatic alcohol) The composition according to the present invention may contain (f) at least one aliphatic alcohol. When two or more aliphatic alcohols are used, they may be the same or different.

[0100] The term "fatty" as used herein means the inclusion of a relatively large number of carbon atoms. Therefore, alcohols having 6 or more, preferably 8 or more, more preferably 10 or more carbon atoms are included within the scope of aliphatic alcohols. The aliphatic alcohol may be saturated or unsaturated. The aliphatic alcohol may be linear or branched. Two or more aliphatic alcohols can be used in combination.

[0101] (f) The aliphatic alcohol may have the structure R-OH (wherein R is selected from saturated and unsaturated, linear and branched groups containing 8 to 40 carbon atoms, for example 8 to 30 carbon atoms). In at least one embodiment, R is C 12 ~C 24 alkyl group and C 12 ~C 24 selected from alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

[0102] Non-limiting examples of aliphatic alcohols that can be mentioned include lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, linoleyl alcohol, undecylenyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, cetearyl alcohol, and mixtures thereof.

[0103] Examples of suitable aliphatic alcohols include, but are not limited to, cetyl alcohol, cetearyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, and mixtures thereof.

[0104] The aliphatic alcohol may represent a mixture of aliphatic alcohols, which means that several species of aliphatic alcohols can coexist in the form of a mixture in commercially available products.

[0105] According to at least one embodiment, the aliphatic alcohol used in the composition according to the present invention is selected from a mixture of cetyl alcohol and stearyl alcohol (cetearyl alcohol).

[0106] The amount of (f) aliphatic alcohol in the composition according to the present invention may be 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, based on the total mass of the composition.

[0107] The amount of (f) aliphatic alcohol in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0108] The amount of (f) aliphatic alcohol in the composition according to the present invention may be 0.1% by mass to 20% by mass, preferably 0.5% by mass to 15% by mass, more preferably 1% by mass to 10% by mass, based on the total mass of the composition.

[0109] (Nonionic surfactant) The composition according to the present invention may contain at least one (g) nonionic surfactant. When two or more nonionic surfactants are used, they may be the same or different.

[0110] Nonionic surfactants are well-known (see, for example, "Handbook of Surfactants" by M. R. Porter, Blackie & Son publishers (Glasgow and London), 1991, pages 116 - 178), and can be selected, for example, from esters of alcohols, α-diols, alkylphenols, and fatty acids, where these compounds are ethoxylated, propoxylated, or glycerolated, and have, for example, at least one fatty chain containing 8 to 30 carbon atoms, and the number of ethylene oxide groups or propylene oxide groups ranges from 2 to 50, and the number of glycerol groups can range from 1 to 30. Maltose derivatives can also be mentioned. Also, non-limiting examples include copolymers of ethylene oxide and / or propylene oxide; condensates of ethylene oxide and / or propylene oxide with aliphatic alcohols; polyethoxylated fatty amides containing, for example, 2 to 30 mol of ethylene oxide; polyglycerolized fatty amides containing, for example, 1.5 to 5, for example 1.5 to 4 glycerol groups; ethoxylated fatty acid esters of sorbitan containing 2 to 30 mol of ethylene oxide; plant-derived ethoxylated oils; fatty acid esters of sucrose; fatty acid esters of polyethylene glycol; glycerol (C6 - C 24 ) polyethoxylated fatty acid monoesters or diesters of alkyl polyglycosides; N-(C6 - C 24 ) alkyl glucamine derivatives; (C 10 - C 14 ) alkylamine oxides or amine oxides such as N-(C 10 - C 14 ) acylaminopropylmorpholine oxide; silicone surfactants; and mixtures thereof.

[0111] (g) The nonionic surfactant can preferably be selected from monooxyalkylenated, polyoxyalkylenated, monoglycerolized or polyglycerolized nonionic surfactants. The oxyalkylene unit is, more specifically, an oxyethylene or oxypropylene unit, or a combination thereof, and is preferably an oxyethylene unit.

[0112] Examples of the monooxyalkylenated or polyoxyalkylenated nonionic surfactants that can be mentioned include the following: Monooxyalkylenated or polyoxyalkylenated (C8 - C 24 ) alkylphenols, Saturated or unsaturated, linear or branched, monooxyalkylenated or polyoxyalkylenated C8 - C 30 alcohols, Saturated or unsaturated, linear or branched, monooxyalkylenated or polyoxyalkylenated C8 - C 30 amides, Esters of saturated or unsaturated, linear or branched C8 - C 30 acids with monoalkylene glycols or polyalkylene glycols, Esters of saturated or unsaturated, linear or branched C8 - C 30 acids with sorbitol, which are monooxyalkylenated or polyoxyalkylenated, Saturated or unsaturated, monooxyalkylenated or polyoxyalkylenated vegetable oils, and Condensates of ethylene oxide and / or propylene oxide, especially as a single substance or a mixture.

[0113] (g) The nonionic surfactant preferably contains from 1 to 100, preferably from 1 to 50, more preferably from 1 to 20 moles of ethylene oxide and / or propylene oxide.

[0114] According to one of the embodiments of the present invention, the monooxyalkylenated nonionic surfactant can be selected from monooxyethylenated aliphatic alcohols (ethers of ethylene glycol and aliphatic alcohols), monooxyethylenated fatty esters (esters of ethylene glycol and fatty acids), and mixtures thereof.

[0115] An example of a monooxyalkylenated fatty ester that can be mentioned is glycol distearate.

[0116] According to one of the embodiments of the present invention, the polyoxyalkylenated nonionic surfactant can be selected from polyoxyethylenated aliphatic alcohols (ethers of polyethylene glycol and aliphatic alcohols), polyoxyethylenated fatty esters (esters of polyethylene glycol and fatty acids), and mixtures thereof.

[0117] The polyoxyethylenated saturated aliphatic alcohol that can be mentioned (or C8 - C 30Examples of the alcohol) include ethylene oxide adducts of lauryl alcohol, especially those containing 2 to 20 oxyethylene units, more specifically those containing 2 to 10 oxyethylene units (CTFA names: laureth-2 to laureth-20); ethylene oxide adducts of behenyl alcohol, especially those containing 2 to 20 oxyethylene units (CTFA names: beheneth-2 to beheneth-20); ethylene oxide adducts of cetearyl alcohol (a mixture of cetyl alcohol and stearyl alcohol), especially those containing 2 to 20 oxyethylene units (CTFA names: ceteareth-2 to ceteareth-20); ethylene oxide adducts of cetyl alcohol, especially those containing 2 to 20 oxyethylene units (CTFA names: ceteas-2 to ceteas-20); ethylene oxide adducts of stearyl alcohol, especially those containing 2 to 20 oxyethylene units (CTFA names: steareth-2 to steareth-20); ethylene oxide adducts of isostearyl alcohol, especially those containing 2 to 20 oxyethylene units (CTFA names: isosteareth-2 to isosteareth-20); and mixtures thereof.

[0118] Examples of polyoxyethylenated unsaturated aliphatic alcohols (or C8-C 30 alcohol) include ethylene oxide adducts of oleyl alcohol, especially those containing 2 to 20 oxyethylene units, more specifically those containing 2 to 10 oxyethylene units (CTFA names: oleth-2 to oleth-20), and mixtures thereof.

[0119] (g) The nonionic surfactant is preferably selected from monooxyalkylenated, polyoxyalkylenated nonionic surfactants, more preferably polyoxyalkylenated nonionic surfactants, and even more preferably polyoxyethylenated aliphatic alcohols.

[0120] The amount of (g) nonionic surfactant in the composition according to the present invention may be 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, based on the total mass of the composition.

[0121] The amount of (g) nonionic surfactant in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.

[0122] The amount of (g) nonionic surfactant in the composition according to the present invention may be from 0.1% by mass to 20% by mass, preferably from 0.5% by mass to 15% by mass, more preferably from 1% by mass to 10% by mass, based on the total mass of the composition.

[0123] (Other optional components) The composition according to the present invention may also contain at least one other optional or additional component.

[0124] The other optional or additional components can be selected from the group consisting of anionic, cationic and amphoteric surfactants; thickeners; anti-dandruff agents; antioxidants; antibacterial agents such as benzoic acid; preservatives such as phenoxyethanol; nacreous agents and opacifying agents; plasticizers or coalescers; fillers; chelating agents; emulsifiers; and fragrances.

[0125] As the other optional or additional component, the composition according to the present invention may contain one or several kinds of organic solvents acceptable as cosmetics, which may be alcohols, particularly monohydric alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol; diols such as ethylene glycol, propylene glycol and caprylyl glycol; other polyols such as glycerol; and ethers such as ethylene glycol monomethyl, monoethyl and monobutyl ethers, propylene glycol monomethyl, monoethyl and monobutyl ethers, and butylene glycol monomethyl, monoethyl and monobutyl ethers.

[0126] The amount of any optional or additional components is not limited, but may be 0.01% to 30% by mass, preferably 0.01% to 20% by mass, more preferably 0.01% to 10% by mass, based on the total mass of the composition according to the present invention.

[0127] The composition according to the present invention may contain at least one cationic polymer, but it is preferable that the composition according to the present invention does not contain any cationic polymer.

[0128] The cationic polymer can be selected from those containing at least one quaternary ammonium group such as polyquaternium polymers.

[0129] The term "free of cationic polymer" means that the composition according to the present invention does not contain a significant amount of cationic polymer. Preferably, the composition according to the present invention contains 1% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less of cationic polymer, and specifically does not contain cationic polymer.

[0130] According to a preferred embodiment, the composition according to the present invention at least one oxidizing agent which is (a) hydrogen peroxide in an amount of 0.1% to 30% by mass based on the total mass of the composition, (b) phosphoric acid in an amount of 0.1% to 20% by mass based on the total mass of the composition, at least one salt of phosphoric acid excluding disodium phosphate which is (c) sodium dihydrogen phosphate in an amount of 0.1% to 20% by mass based on the total mass of the composition and the mass ratio of the amount of (b) phosphoric acid / the amount of (c) sodium dihydrogen phosphate, which is a salt of phosphoric acid excluding disodium phosphate and the total of the amount of (b) phosphoric acid + the amount of (c) sodium dihydrogen phosphate, which is a salt of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the composition.

[0131] According to a preferred embodiment, the composition according to the present invention comprises (a) at least one oxidizing agent in an amount of 0.5% to 20% by mass based on the total mass of the composition, (b) phosphoric acid in an amount of 0.5% to 10% by mass based on the total mass of the composition, and at least one salt of phosphoric acid excluding disodium phosphate in an amount of 0.5% to 10% by mass based on the total mass of the composition and the mass ratio of the amount of (b) phosphoric acid / the amount of the salt of phosphoric acid excluding disodium phosphate and the total of the amount of (b) phosphoric acid + the amount of the salt of phosphoric acid excluding disodium phosphate are in the range of 5.2 to 7.0, provided that the amounts are based on mass percentages (%) relative to the total mass of the composition.

[0132] (Preparation) The composition according to the present invention can be prepared by mixing the above essential components and optional components by a conventional method.

[0133] For example, the composition according to the present invention (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate are mixed by a method including a step of mixing such that the mass ratio of the amount of (b) phosphoric acid / the amount of the salt of phosphoric acid excluding disodium phosphate and the total of the amount of (b) phosphoric acid + the amount of the salt of phosphoric acid excluding disodium phosphate are in the range of 5.2 to 7.0 (provided that the amounts are based on mass percentages (%) relative to the total mass of the composition).

[0134] For the above components (a) to (c), those described above can be used.

[0135] Among them, any one of the optional components such as (d) water, (e) oil, (f) aliphatic alcohol, and (g) nonionic surfactant, and the other optional or additional components described above can be further mixed.

[0136] [Use] The composition according to the invention is preferably used for the cosmetic treatment of keratin fibers. Therefore, the composition according to the invention is preferably a cosmetic composition for treating keratin fibers, in particular for coloring or dyeing keratin fibers.

[0137] Examples of keratin fibers that can be mentioned are hair, eyebrows and eyelashes. It is preferred that the keratin fibers are hair.

[0138] When the composition according to the invention is used for coloring or dyeing keratin fibers such as hair, the composition according to the invention can be used as a mixture with another composition comprising (h) at least one alkaline agent and optionally (i) at least one dye. In this case, the composition according to the invention can function as a developer.

[0139] The above mixture can be regarded as a ready-to-use composition. For the purposes of the present invention, the expression "ready-to-use composition" is defined herein as a composition that is immediately applied to keratin fibers such as hair. A ready-to-use composition can also be a cosmetic composition for treating keratin fibers, in particular for coloring or dyeing keratin fibers such as hair.

[0140] The mixing ratio of the composition according to the invention with another composition is not limited. The mixing ratio may be, as their mass ratio, 1:3 to 3:1, preferably 1:2 to 2:1, more preferably 1:1.

[0141] [Alkaline agent] The composition to be mixed with the composition according to the invention comprises (h) at least one alkaline agent. When two or more alkaline agents are used, they may be the same or different.

[0142] (h) The alkali agent may contain at least one selected from alkanolamines, derivatives of alkanolamines (alkanolamine derivatives), salts of alkanolamines, or salts of alkanolamine derivatives.

[0143] The alkanolamine has an alkane structure having at least one hydroxyl group and at least one amino group.

[0144] Examples of alkanolamines that can be mentioned include, for example, mono-, di- and tri-ethanolamine. The alkanolamine can be selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, tris(hydroxymethylamino)methane, and mixtures thereof.

[0145] The alkanolamine derivative can be selected from alkanolamines in which, when present, the hydrogen atom on the nitrogen atom of the amino group in the alkanolamine is substituted with at least one substituent.

[0146] Examples of substituents that can be mentioned include, for example, alkyl groups, alkenyl groups and alkynyl groups.

[0147] The alkyl group may be a linear, branched or cyclic alkyl group. The alkyl group may be a linear or branched C1-C6 alkyl group, preferably a C1-C4 alkyl group, such as a methyl group, an ethyl group, a propyl group, an i-propyl group and a butyl group. On the other hand, the alkyl group may be a cyclic C3-C6 alkyl group, such as a cyclopentyl group and a cyclohexyl group.

[0148] The alkenyl group may be a C2-C6 alkenyl group, such as a vinyl group, an allyl group, a butylene group, a pentenyl group, and a hexenyl group.

[0149] The alkynyl group may be a C2-C6 alkynyl group, such as an ethynyl group and a propynyl group.

[0150] The above substituents may be further substituted with at least one group such as a halogen atom, a nitro group, a cyano group, a hydroxyl group, etc., and an aromatic group such as a phenyl group.

[0151] (h) The alkaline agent may also contain an additional basifying agent.

[0152] The additional basifying agent can be selected from inorganic and / or organic basifying agents.

[0153] Examples of inorganic basifying agents that can be mentioned are, for example, sodium hydroxide and potassium hydroxide.

[0154] Ammonia can be used as an inorganic basifying agent. However, it is preferably that the amount of ammonia in the composition according to the present invention is as small as possible. For example, the amount of ammonia in the composition according to the present invention can be 1% by mass or less, preferably 0.1% by mass or less, more preferably 0.01% by mass or less. Most preferably, the composition according to the present invention does not contain any ammonia.

[0155] Examples of organic basifying agents that can be mentioned are, for example, urea, guanidine, and their derivatives, diamines, such as the structure:

[0156]

Chemical formula

[0157] (In the formula, R represents an alkylene such as propylene optionally substituted with a hydroxyl or C1-C4 alkyl group, and R1, R2, R3, and R4 each independently represent a hydrogen atom, an alkyl group, or a C1-C4 hydroxyalkyl group, which may be exemplified by 1,3-propanediamine and its derivatives) as described in

[0158] The types of salts of alkanolamines and salts of alkanolamine derivatives are not limited. The salt may be an acid salt. Examples of acid salts include, for example, inorganic acid salts such as hydrochloride, sulfate, nitrate, and phosphate, and organic acid salts such as citrate, oxalate, acetate, formate, maleate, and tartrate.

[0159] The amount of the (h) alkali agent in the composition to be mixed with the composition according to the present invention may be 0.1% by mass or more, preferably 0.2% by mass or more, more preferably 0.3% by mass or more, based on the total mass of the composition.

[0160] The amount of the (h) alkali agent in the composition to be mixed with the composition according to the present invention may be 15% by mass or less, preferably 12% by mass or less, more preferably 9% by mass or less, based on the total mass of the composition.

[0161] The amount of the (h) alkali agent in the composition to be mixed with the composition according to the present invention may be 0.1% by mass to 15% by mass, preferably 0.2% by mass to 12% by mass, more preferably 0.3% by mass to 9% by mass, based on the total mass of the composition.

[0162] (Dye) The composition to be mixed with the composition according to the present invention optionally contains (i) at least one dye. When two or more dyes are used, they may be the same or different.

[0163] Preferably, the dye is selected from oxidation dyes.

[0164] The acid dye can be selected from an oxidation base and a coupler.

[0165] The oxidation base can be selected from those conventionally known in oxidation dyeing, preferably from the group consisting of ortho- and para-phenylenediamines, double bases, ortho- and para-aminophenols, heterocyclic bases, and their acid addition salts.

[0166] In particular, the following can be mentioned: - (I) para-phenylenediamines of the following formula (I), and their acid addition salts:

[0167] [Chemical formula]

[0168] [In the formula, R1 represents a hydrogen atom, a C1-C4 alkyl group, a monohydroxy (C1-C4 alkyl) group, a polyhydroxy (C2-C4 alkyl) group, a (C1-C4) alkoxy (C1-C4) alkyl group, a C1-C4 alkyl group substituted with a nitrogen-containing group, a phenyl group or a 4'-aminophenyl group, R2 represents a hydrogen atom, a C1-C4 alkyl group, a monohydroxy (C1-C4 alkyl) group, a polyhydroxy (C2-C4 alkyl) group, a (C1-C4) alkoxy (C1-C4) alkyl group, or a C1-C4 alkyl group substituted with a nitrogen-containing group, R1 and R2 may also form a 5- or 6-membered nitrogen-containing heterocycle optionally substituted with one or more alkyl, hydroxyl or ureido groups together with the nitrogen atom holding them, R3 represents a hydrogen atom, a halogen atom such as a chlorine atom, a C1-C4 alkyl group, a sulfo group, a carboxyl group, a monohydroxy (C1-C4 alkyl) group, a hydroxy (C1-C4 alkoxy) group, an acetylamino (C1-C4 alkoxy) group, a mesylamino (C1-C4 alkoxy) group or a carbamoylamino (C1-C4 alkoxy) group, R4 represents a hydrogen atom, a halogen atom, or a C1-C4 alkyl group.

[0169] Among the nitrogen-containing groups of the above formula (I), those that can be particularly mentioned are amino, mono(C1-C4)alkylamino, (C1-C4)dialkylamino, (C1-C4)trialkylamino, monohydroxy(C1-C4)alkylamino, di(monohydroxy(C1-C4)alkyl)amino, imidazolinium, and ammonium groups.

[0170] Among the para-phenylenediamines of the above formula (I), more particularly mentioned are para-phenylenediamine, para-tolylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-dimethylpara-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-methylpara-phenylenediamine, N,N-(ethyl-β-hydroxyethyl)-para-phenylenediamine, N-(β,γ-dihydroxypropyl)-para-phenylenediamine, N-(4'-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2-β-acetylamino-ethyloxy-para-phenylenediamine, N-(β-methoxyethyl)-para-phenylenediamine, 2-methyl-1-N-β-hydroxyethyl-para-phenylenediamine, N-(4-aminophenyl)-3-hydroxy-pyrrolidine, 2-[(2-[(4-aminophenyl)amino]ethyl}(2-hydroxyethyl)amino]-ethanol, and acid addition salts thereof.

[0171] Among the para-phenylenediamines of the above formula (I), those most particularly preferred are para-phenylenediamine, para-tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine, and their acid addition salts.

[0172] - (II) According to the present invention, "double base" is understood to mean a compound containing at least two aromatic rings in which an amino group and / or a hydroxyl group is retained therein.

[0173] Among the double bases that can be used as the oxidation base in the dyeing composition according to the present invention, those that can be particularly mentioned are the following formula (II):

[0174]

Chemical formula

[0175] [wherein, - Z1 and Z2 are the same or different and represent a hydroxyl group or -NH2 group which may be substituted with a C1-C4 alkyl group or a linking arm Y, - The linking arm Y represents a linear or branched alkylene chain containing 1 to 14 carbon atoms, which may be interrupted by one or more nitrogen-containing groups and / or one or more heteroatoms, such as an oxygen atom, a sulfur atom or a nitrogen atom, or it may be terminated by them, and is optionally substituted with one or more hydroxyl groups or C1-C6 alkoxy groups. - R5 and R6 are hydrogen, or a halogen atom, a C1-C4 alkyl group, a monohydroxy(C1-C4 alkyl) group, a polyhydroxy(C2-C4 alkyl) group, an amino(C1-C4 alkyl) group, or a linking arm Y, - R7, R8, R9, R 10 , R 11 and R 12 are the same or different and represent a hydrogen atom, a linking arm Y, or a C1-C4 alkyl group, and it is understood that the compound of formula (II) contains only one linking arm Y per molecule] compounds corresponding thereto, and their acid addition salts.

[0176] Among the nitrogen-containing groups of the above formula (II), those that can be particularly mentioned are amino, mono(C1-C4)alkylamino, (C1-C4)dialkylamino, (C1-C4)trialkylamino, monohydroxy(C1-C4)alkylamino, imidazolinium, and ammonium groups.

[0177] Among the double bases of the above formula (II), those that can be more particularly mentioned are N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)ethylenediamine, N,N'-bis(4-aminophenyl)-tetramethylenediamine, N,N'-bis(β-hydroxyethyl)-N,N'-bis(4-aminophenyl)tetramethylenediamine, N,N'-bis(4-methylaminophenyl)tetramethylenediamine, N,N'-bis(ethyl)-N,N'-bis(4'-amino-3'-methylphenyl)ethylene-diamine, 1,8-bis(2,5-diaminophenoxy)-3,5-dioxaoctane, and their acid addition salts.

[0178] Among these double bases of formula (II), one of N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, 1,8-bis(2,5-diaminophenoxy)-3,5-dioxaoctane, or an acid addition salt thereof is particularly preferred.

[0179] - (III) para-aminophenol corresponding to the following formula (III), and their acid addition salts:

[0180]

Chemical formula

[0181] [In the formula, - R 13 represents a hydrogen atom, or a halogen atom such as fluorine, C1-C4 alkyl, monohydroxy(C1-C4 alkyl), (C1-C4)alkoxy(C1-C4)-alkyl, amino(C1-C4 alkyl) or hydroxy(C1-C4)alkylamino-(C1-C4 alkyl) group, - R 14 represents a hydrogen atom, or a halogen atom such as fluorine, C1-C4 alkyl, monohydroxy(C1-C4 alkyl), polyhydroxy(C2-C4 alkyl), amino(C1-C4 alkyl), cyano(C1-C4 alkyl) or (C1-C4)alkoxy(C1-C4)alkyl group].

[0182] More particularly, among the para-aminophenols of the above formula (III), para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol, and their acid addition salts can be mentioned.

[0183] - (IV) Ortho-aminophenols that can be used as an oxidation base in the context of the present invention are particularly selected from 2-aminophenol, 2-amino-1-hydroxy-5-methylbenzene, 2-amino-1-hydroxy-6-methylbenzene, 5-acetamido-2-aminophenol, and their acid addition salts.

[0184] - (V) Among the heterocyclic bases that can be used as an oxidation base in the dyeing composition according to the present invention, more particularly mention may be made of pyridine derivatives, pyrimidine derivatives, pyrazole derivatives, and their acid addition salts.

[0185] Among the pyridine derivatives, more particularly mention may be made of the compounds described in, for example, Patent GB1,026,978 and GB1,153,196, such as 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine, 2,3-diamino-6-methoxypyridine, 2-(β-methoxyethyl)amino-3-amino-6-methoxypyridine, 3,4-diaminopyridine, and their acid addition salts.

[0186] Among the pyrimidine derivatives, those that can be more particularly mentioned are, for example, the compounds described in Patent DE2359399, JP88-169571, and JP91-10659, or Patent Application WO96 / 15765, such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine, and pyrazolopyrimidine derivatives, such as those mentioned in Patent Application FR-A-2750048. Among them, those that can be mentioned are pyrazolo[1,5-a]-pyrimidine-3,7-diamine, 2,5-dimethyl-pyrazolo[1,5-a]-pyrimidine-3,7-diamine, pyrazolo[1,5-a]pyrimidine-3,5-diamine, 2,7-dimethylpyrazolo[1,5-a]pyrimidine-3,5-diamine, 3-aminopyrazolo[1,5-a]pyrimidine-7-ol, 3-amino-pyrazolo[1,5-a]pyrimidine-5-ol, 2-(3-amino-pyrazolo-[1,5-a]pyrimidine-7-ylamino)ethanol, 2-(7-aminopyrazolo[1,5-a]pyrimidine-3-ylamino)ethanol, 2-[(3-amino-pyrazolo[1,5-a]pyrimidine-7-yl)-(2-hydroxy-ethyl)amino]-ethanol, 2-[(7-aminopyrazolo[1,5-a]pyrimidine-3-yl)-(2-hydroxyethyl)amino]ethanol, 5,6-dimethylpyrazolo-[1,5-a]pyrimidine-3,7-diamine, 2,6-dimethylpyrazolo-[1,5-a]pyrimidine-3,7-diamine, 2,5,N7,N7-tetramethyl-pyrazolo[1,5-a]pyrimidine-3,7-diamine, 3-amino-5-methyl-7-imidazolylpropyl-aminopyrazolo[1,5-a]-pyrimidine, their addition salts, and when tautomeric equilibria exist, their tautomeric forms, as well as their acid addition salts.

[0187] Among the pyrazole derivatives, those that can be more particularly mentioned are the compounds described in patents DE3843892 and DE4133957, as well as patent applications WO94 / 08969, WO94 / 08970, FR-A-2733749 and DE19543988, such as 4,5-diamino-1-methylpyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)-pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazino-pyrazole, 1-benzyl-4,5-diamino-3-methyl-pyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxy-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropyl-pyrazole, 4,5-diamino-3-methyl-1-isopropyl-pyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triamino-pyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(β-hydroxy-ethyl)amino-1-methylpyrazole, and their acid addition salts.

[0188] Among the heterocyclic bases that can be used as oxidation bases, those that can be more particularly mentioned are diaminopyrazolopyrazolone, especially 2,3-diamino-6,7-dihydro-1H5H-[pyrazolo1,2,a]pyrazol-1-one, and their acid addition salts with diaminopyrazolopyrazolone.

[0189] The coupler may be an oxidation coupler preferably selected from the group consisting of meta-phenylenediamine, meta-aminophenol, meta-diphenol, naphthol, heterocyclic couplers, and acid addition salts thereof, which are known in oxidation dyeing.

[0190] The heterocyclic coupler can be selected from the group consisting of indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolone, indazole, benzimidazole, benzothiazole, benzoxazole, 1,3-benzodioxole, quinoline, and acid addition salts thereof.

[0191] More specifically, these couplers are selected from 2,4-diamino-1-(β-hydroxyethyloxy)benzene, 2-methyl-5-aminophenol, 5-N-(β-hydroxyethyl)amino-2-methylphenol, 3-aminophenol, 2-chloro-3-amino-6-methylphenol, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 2-methyl-5-hydroxyethylaminophenol, 4-amino-2-hydroxytoluene, 1,3-bis(2,4-diaminophenoxy)-propane, sesamol, 1-amino-2-methoxy-4,5-methylenedioxybenzene, α-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 6-hydroxy-indoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2-amino-3-hydroxypyridine, 3,6-dimethyl-pyrazolo[3,2-c]-1,2,4-triazole, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, and acid addition salts thereof.

[0192] Generally, the oxidation base and the acid addition salts of the coupler are selected in particular from hydrochloride, hydrobromide, sulfate, citrate, succinate, tartrate, lactate, tosylate, benzenesulfonate, phosphate and acetate.

[0193] The amount of (i) the dye in the composition to be mixed with the composition according to the present invention may be 0.005% by mass or more, preferably 0.01% by mass or more, based on the total mass of the composition.

[0194] On the other hand, the amount of (i) the dye in the composition to be mixed with the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, more preferably 12% by mass or less, based on the total mass of the composition.

[0195] The amount of (i) the dye in the composition to be mixed with the composition according to the present invention may be 0.005% by mass to 20% by mass, preferably 0.005% by mass to 15% by mass, more preferably 0.01% by mass to 12% by mass, based on the total mass of the composition.

[0196] [Kit] The present invention also relates to a kit for keratin fibers, preferably a cosmetic kit, more preferably a cosmetic kit for coloring or dyeing keratin fibers, in particular hair, comprising (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate and contained in a first compartment containing a first composition, (b) the mass ratio of the amount of phosphoric acid / (c) the amount of the salt of phosphoric acid excluding disodium phosphate and (b) the total amount of the amount of phosphoric acid + (c) the amount of the salt of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the first composition, the first compartment, and (h) at least one alkaline agent, (i) optionally at least one dye and a second compartment containing a second composition, which also relates to a kit.

[0197] The first composition may further contain any one of the components (d) to (g) described above.

[0198] For the above components (a) to (i), those described above can be used.

[0199] For example, it is possible to use the kit by dispensing or releasing the first composition from the first compartment and, on the other hand, dispensing or releasing the second composition from the second compartment, and subsequently treating keratin fibers such as hair with a mixture of the first composition and the second composition.

[0200] The mixture of the first composition and the second composition may be regarded as the ready-to-use composition described above.

[0201] The mixing ratio of the first composition and the second composition is not limited. The mixing ratio may be, as their mass ratio, 1:3 to 3:1, preferably 1:2 to 2:1, more preferably 1:1.

[0202] [Method] The present invention also relates to a method, preferably a cosmetic method, more preferably a cosmetic method for coloring or dyeing keratin fibers, in particular hair, (1) a step of mixing a first composition and a second composition to prepare a mixture, wherein the first composition (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate and the mass ratio of the amount of (b) phosphoric acid / the amount of the salt of phosphoric acid excluding disodium phosphate and the total amount of (b) phosphoric acid + the amount of the salt of phosphoric acid excluding disodium phosphate The sum is in the range of 5.2 to 7.0, provided that the amount is based on the mass percentage (%) with respect to the total mass of the first composition, The second composition contains (h) at least one alkali agent and optionally (i) at least one dye, process, (2) a step of applying the mixture to keratin fibers, and also relates to a method comprising.

[0203] The first composition may further contain any one of the components (d) to (g) described above.

[0204] For the above components (a) to (i), those described above can be used.

[0205] The mixture of the first composition and the second composition may be regarded as the immediately usable composition described above.

[0206] The mixing ratio of the first composition and the second composition is not limited. The mixing ratio may be 1:3 to 3:1, preferably 1:2 to 2:1, more preferably 1:1 as their mass ratio.

[0207] It is preferable that the method according to the present invention further includes a step of washing the keratin fibers, with or without drying, before and / or after the step of applying the mixture of the first composition and the second composition as an immediately usable composition onto the keratin fibers.

[0208] The step of applying the immediately usable composition onto the keratin fibers can also be carried out by conventional application tools such as a brush or by hand.

[0209] Keratin fibers coated with the immediately available composition can be left for the appropriate time required to process the keratin fibers. The length of time for the treatment is not limited, but it can be 1 minute to 1 hour, preferably 1 minute to 50 minutes. For example, the time for dyeing keratin fibers can be 1 to 50 minutes, preferably 5 to 35 minutes.

Examples

[0210] The present invention will be described in more detail by way of examples. However, these examples should not be construed as limiting the scope of the present invention. The following examples are presented as non-limiting illustrations in the field of the present invention.

[0211] (Examples 1 to 7 and Comparative Examples 1 to 6) (Preparation) The compositions according to Examples 1 to 7 and Comparative Examples 1 to 6 shown in Tables 1 to 2 were prepared by mixing the components shown in Tables 1 to 2. All the numerical values for the amounts of the components shown in Tables 1 to 2 are based on "mass %" of the active material.

[0212]

Table 1

[0213]

Table 2

[0214] (Evaluation) pH: The pH of each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 6 was measured. The results are shown in Tables 1 to 2.

[0215] pH (mixture): Each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 6 was mixed with a hair dye composition (L'Oreal iNOA Japan lightener). The mixing mass ratio of each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 6 to the hair dye composition was set to 1:1. The pH of the mixture thus obtained was measured. The results are shown in Tables 1 to 2.

[0216] Cosmetic performance: Among those according to Examples 1 to 7 and Comparative Examples 1 to 6, each of the compositions was mixed with a hair dye composition (L'Oreal iNOA Japan lightener). The mixing mass ratio of each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 6 to the hair dye composition was set to 1:1.

[0217] 8 g of the above mixture thus obtained was applied onto 2.7 g (27 cm) of a natural Chinese hair specimen. The hair specimen was left at 27°C for 35 minutes. Subsequently, the hair specimen was washed with water, then shampooed, rinsed, and dried.

[0218] Next, the lightness (paleness) of the hair specimen was evaluated by five evaluators visually scoring the hair specimen according to the following evaluation criteria. Slight increase in lightness: +1 Almost no increase in lightness: 0

[0219] The scores were averaged. The results are shown in Tables 1 to 2.

[0220] Next, the gloss of the hair specimen was evaluated by five evaluators visually scoring the hair specimen according to the following evaluation criteria. Excellent: +++ Good: ++ Normal: + Poor: -

[0221] The scores were averaged. The results are shown in Tables 1 to 2. NA: Not available

[0222] (Overview) (a) At least one oxidizing agent, (b) phosphoric acid, and (c) at least one salt of phosphoric acid excluding disodium phosphate. The compositions described in Examples 1 to 7 can dye keratin fibers while restricting the increase in the lightness or paleness of the keratin fibers, provided that the mass ratio of the amount of (b) phosphoric acid to the amount of the salt of phosphoric acid excluding disodium phosphate, and the sum of the amount of (b) phosphoric acid + the amount of the salt of phosphoric acid excluding disodium phosphate are in the range of 5.2 to 7.0 (wherein the amount is based on the mass percentage (%) with respect to the total mass of the composition).

[0223] In addition, the compositions according to Examples 1 to 7 were able to provide good luster to the keratin fibers.

[0224] The compositions according to Comparative Examples 1 to 6 do not meet the above conditions. The compositions according to Comparative Examples 1 to 6 also significantly increase the lightness or paleness of the colored or dyed keratin fibers and do not provide good luster to the keratin fibers.

Claims

1. A composition for keratin fibers, comprising: (a) at least one oxidizing agent; (b) phosphoric acid; (c) at least one salt of phosphoric acid excluding disodium phosphate; wherein the mass ratio of the amount of (b) phosphoric acid to the amount of (c) the salt of phosphoric acid excluding disodium phosphate, and the sum of the amount of (b) phosphoric acid + the amount of (c) the salt of phosphoric acid excluding disodium phosphate are in the range of 5.2 to 7.0, provided that said amounts are based on mass percentages (%) relative to the total mass of the composition.

2. The composition according to claim 1, wherein (a) the oxidizing agent is hydrogen peroxide.

3. The composition according to claim 1 or 2, wherein the amount of (a) the oxidizing agent in the composition is 0.1% to 30% by mass, preferably 0.3% to 25% by mass, more preferably 0.5% to 20% by mass, relative to the total mass of the composition.

4. The composition according to any one of claims 1 to 3, wherein the amount of (b) phosphoric acid in the composition is 0.1% to 20% by mass, preferably 0.3% to 15% by mass or less, more preferably 0.5% to 10% by mass or less, relative to the total mass of the composition.

5. The composition according to any one of claims 1 to 4, wherein (c) the salt of phosphoric acid is monosodium phosphate.

6. The composition according to any one of claims 1 to 5, wherein the amount of (c) the salt of phosphoric acid excluding disodium phosphate in the composition is 0.1% to 20% by mass, preferably 0.3% to 15% by mass or less, more preferably 0.5% to 10% by mass or less, relative to the total mass of the composition.

7. The composition according to any one of claims 1 to 6, further comprising (d) water.

8. The composition according to claim 7, wherein the amount of (d) water in the composition is 30% to 80% by mass, preferably 40% to 70% by mass, relative to the total mass of the composition.

9. The composition according to any one of claims 1 to 8, further comprising (e) at least one oil.

10. The composition according to claim 9, wherein the amount of (e) oil in the composition is 0.1% to 40% by mass, preferably 0.5% to 35% by mass, more preferably 1% to 30% by mass, relative to the total mass of the composition.

11. The composition according to any one of claims 1 to 10, further comprising (f) at least one aliphatic alcohol.

12. ​ ​ The composition according to claim 11, wherein the amount of (f) aliphatic alcohol in the composition is 0.1% by mass to 20% by mass, preferably 0.5% by mass to 15% by mass, more preferably 1% by mass to 10% by mass based on the total mass of the composition.

13. The composition according to any one of claims 1 to 12, further comprising (g) at least one nonionic surfactant.

14. The composition according to any one of claims 1 to 13, which is a cosmetic composition for keratin fibers, preferably a cosmetic composition for coloring keratin fibers, more preferably a cosmetic composition for coloring hair.

15. A method for treating, preferably coloring, keratin fibers such as hair, comprising: (1) A step of preparing a mixture by mixing a first composition and a second composition, wherein the first composition comprises (a) at least one oxidizing agent, (b) phosphoric acid, (c) at least one salt of phosphoric acid excluding disodium phosphate and the mass ratio of the amount of (b) phosphoric acid to the amount of the salt of phosphoric acid excluding disodium phosphate and the total of the amount of (b) phosphoric acid and the amount of the salt of phosphoric acid excluding disodium phosphate is in the range of 5.2 to 7.0, provided that the amounts are based on the mass percentage (%) with respect to the total mass of the first composition, the second composition comprises (h) at least one alkaline agent and optionally (i) at least one dye, step; (2) A step of applying the mixture to keratin fibers. comprising method. ​

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