Hair coloring method and composition
AssigneesKao Corporation, Fuji Photo Film Co., Ltd.
InventorsDominic Pratt, Toshio Kawagishi
Life of this patent
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Abstract
The present invention is directed to a hair coloring method by using a composition comprising a specified ring-fused heterocycle direct dyestuff having the general formula (1) or a salt thereof wherein the formulas are as defined in the patent claims. Furthermore, the present invention is also directed to the composition. This composition has a surprisingly good hair coloring performance and compatibility with peroxides. The use of this composition leads to long lasting brilliant colors wherein the color is stable against washing of the hair and environmental influences.
Claims15
A hair colouring method comprising applying to the hair a composition comprising, as a direct dyestuff, an ring-fused heterocycle direct dyestuff represented by the following general formula (1) or a salt thereof:
- wherein B represents a heterocyclic group of the following formula (B-1), (B-2), (B-3) or (B-4):
- wherein each of Za, Zb, Zc, Z1, Z2 and Z3 independently represents a nitrogen atom or a group —C(R5)═, at least one of Zb and Zc is the group —C(R5)═ and at least one of Z1, Z2 and Z3 is a nitrogen atom,
- R1, R4 and R5 independently represent a hydrogen atom;
- a halogen atom;
- a C1-5 alkyl group which may be optionally substituted by one or more of halogen atom(s), hydroxy group(s), alkoxy group(s), aryloxy group(s), amino group(s), alkylamino group(s), hydroxyalkylamino group(s), acyl group(s), acylamino group(s) or alkylsulfonylamino group(s);
- a C1-4 alkoxy group;
- a C1-4 alkylthio group;
- an arylthio group;
- a heteroarylthio group;
- a benzylthio group;
- an acyl group which may be optionally substituted by one or more of hydroxy group(s) or amino group(s);
- an acylamino group;
- an alkylsulfonylamino group;
- an acyloxy group;
- a carbamoyl group;
- an alkylaminocarbonyl group;
- a dialkylaminocarbonyl group;
- a phenyl group which may be optionally substituted by one or more of halogen atom(s), nitro group(s), sulfo group(s), alkylsulfonyl group(s), C1-4 alkyl group(s), C1-4 alkoxy group(s), C1-3 fluoroalkyl group(s), amino group(s), alkylamino group(s), hydroxyalkylamino group(s) or alkylsulfonylamino group(s);
- an alkoxycarbonyl group which may be optionally substituted by one or more of hydroxy group(s);
- an aryloxycarbonyl group;
- a heteroaryloxycarbonyl group;
- a cyano group;
- a nitro group;
- a dialkylphosphinyl group;
- an alkylsulfinyl group;
- an arylsulfinyl group;
- a sulfamoyl group;
- an alkylaminosulfonyl group;
- a dialkylaminosulfonyl group;
- a carboxy group;
- a sulfo group;
- an aryloxy group which may be optionally substituted by one or more of alkoxy group(s);
- an heteroaryloxy group;
- a C1-4 alkylamino group;
- an ureido group;
- a sulfamoylamino group;
- an alkoxycarbonylamino group;
- an aryloxycarbonylamino group;
- or a phosphonyl group,
- each of R2 and R3 independently represents a hydrogen atom, a C1-5 alkyl group, an acylamino group, an alkylsulfonylamino group or an electron withdrawing group,
- and * represents the position which binds to the nitrogen atom in the formula (1).
A hair colouring composition comprising 0.001 to 5 wt % of at least one ring-fused heterocycle direct dyestuff based on the whole composition, wherein at least one ring-fused heterocycle direct dyestuff is represented by the following general formula (1) or a salt thereof:
- wherein B represents a heterocyclic group of the following formula (B-1), (B-2), (B-3) or (B-4):
- wherein each of Za, Zb, Zc, Z1, Z2 and Z3 independently represents a nitrogen atom or a group —C(R5)═, at least one of Zb and Zc is the group —C(R5)═ and at least one of Z1, Z2 and Z3 is a nitrogen atom,
- R1, R4 and R5 independently represent a hydrogen atom;
- a halogen atom;
- a C1-5 alkyl group which may be optionally substituted by one or more of halogen atom(s), hydroxy group(s), alkoxy group(s), aryloxy group(s), amino group(s), alkylamino group(s), hydroxyalkylamino group(s), acyl group(s), acylamino group(s) or alkylsulfonylamino group(s);
- a C1-4 alkoxy group;
- a C1-4 alkylthio group;
- an arylthio group;
- a heteroarylthio group;
- a benzylthio group;
- an aryl group which may be optionally substituted by one or more of hydroxy group(s) or amino group(s);
- an acylamino group;
- an alkylsulfonylamino group;
- an acyloxy group;
- a carbamoyl group;
- an alkylaminocarbonyl group;
- a dialkylaminocarbonyl group;
- a phenyl group which may be optionally substituted by one or more of halogen atom(s), nitro group(s), sulfo group(s), alkylsulfonyl group(s), C1-4 alkyl group(s), C1-4 alkoxy group(s), C1-3 fluoroalkyl group(s), amino group(s), alkylamino group(s), hydroxyalkylamino group(s) or alkylsulfonylamino group(s);
- an alkoxycarbonyl group which may be optionally substituted by one or more of hydroxy group(s);
- an aryloxycarbonyl group;
- a heteroaryloxycarbonyl group;
- a cyano group;
- a nitro group;
- a dialkylphosphinyl group;
- an alkylsulfinyl group;
- an arylsulfinyl group;
- a sulfamoyl group;
- an alkylaminosulfonyl group;
- a dialkylaminosulfonyl group;
- a carboxy group;
- a sulfo group;
- an aryloxy group which may be optionally substituted by one or more of alkoxy group(s);
- an heteroaryloxy group;
- a C1-4 alkylamino group;
- an ureido group;
- a sulfamoylamino group;
- an alkoxycarbonylamino group;
- an aryloxycarbonylamino group;
- or a phosphonyl group,
- each of R2 and R3 independently represents a hydrogen atom, a C1-5 alkyl group, an acylamino group, an alkylsulfonylamino group or an electron withdrawing group,
- and * represents the position which binds to the nitrogen atom in the formula (1).
Dependencies are inferred from the claim text.