Patent Application
20090249564
The present invention relates to hair dye compositions containing anthraquinone hair dyes.
Hair dyes can be classified by the dye to be used therefore, or by whether they have bleaching action of melanin or not. Typical examples include a two-part permanent hair dye composed of a first part containing an alkali agent, an oxidation dye and optionally a direct dye such as a nitro dye and a second part containing an oxidizing agent; and a one-part semi-permanent hair dye containing an organic acid or an alkali agent, and an acid dye, basic dye or direct dye such as a nitro dye. The above-described permanent hair dye is however accompanied by the drawback that the color tone imparted by an oxidation dye is not so vivid and that they damage the hair. Use of a nitro dye or cationic dye for a two-component hair dye containing an oxidizing agent has been attempted in order to produce various color tones (refer to, for example, Japanese Patent Laid-Open No. 1994-271435 and EP 1 133 976 A2). A permanent hair dye formulation containing current direct dyes typically develop a vivid color just after dyeing, but the color fades away quickly over time and which leads to a dull end result. Also the use of many direct dyes involves such problems as decomposition when mixed with a peroxide serving as an oxidizing agent and incompatibility with the formulation.
The above described semi-permanent hair dye formulations are accompanied by the drawback that the color imparted typically displays low durability. In addition, it is difficult to achieve violet, blue and ash tones since the number of dyes which can deliver these tones is extremely limited. Such dyes must be high performing and toxicologically safe.
It is known to use quaternized anthraquinone dyes to dye hairs, see for example DE 1 203 915, DE 1 248 865, DE 1 492 066, GB 1 205 365, U.S. Pat. No. 3,531,502, EP 0 818 193 A2 and EP 0 852 136 A1. In addition, U.S. Pat. No. 3,657,213, GB 1,270,107, GB 1,248,652, U.S. Pat. No. 2,888,467, U.S. Pat. No. 2,737,517, U.S. Pat. No. 4,246,172, CH 14851/71, DE 16 19 365, CH 463666, FR 1,363,216, U.S. Pat. No. 5,486,629 and GB 807241 teach to dye textile materials with quaternized anthraquinone dyes.
However, there is still a need for hair dyes which can effectively deliver blue, ash, violet or red tones to the hair without damaging and are toxicologically safe.
It was now surprisingly found that specific anthraquinone dyes according to the definition given below provide the required properties.
Accordingly, the present invention provides hair dye compositions comprising one or more dyestuffs of the general formula (I)
wherein
R is hydrogen, alkyl, alkyl substituted by —OR2—, —SR3 or —NR5R4, hydroxyalkyl, polyhydroxyalkyl, cycloalkyl, aryl substituted by R10, R11O-alkyl, —OR12, —R13, —N14R15, —CONR15R16, —C(O)OR17, —SO2—NR18R19, —SO2OR20, —C(O)R21 or —SO2R22, —C(O)R6, —SO2NR7R8 or —SO2R9;
X is hydrogen, —OR230, —SR240, —NR250R260, —SO2NR270R280, —CONR290R300, —SO2OR310, —C(O)OR320, —C(O)R330, —SO2R340, alkyl substituted by Q, —OR201, —SR300 or —NR500R400, aryl substituted by R100, R110O-alkyl, —OR120, —SR130, —NR140R150, —CONR150OR160, —C(O)OR170, —SO2—NR180R190, —SO2OR200, —C(O)R210 or —SO2R220, —NHSO2R360R370 or —CH═NR350;
T is hydrogen, alkyl substituted by Q or aryl substituted by —OR230;
Y is hydrogen, —NR51R52, —OR53, —SR54, —SO2NHR55, —NHC(O)R56, —SO20R57, —NHSO2R58, —SO2R59, —NHSO2NR60R61, halogen or NO2;
Z is hydrogen, —NR51R52, —OR53, —SR54, —SO2NHR55, —NHC(O)R56—SO2OR57, NHSO2R58, —SO2R59, —NHSO2NR60R61, halogen or NO2;
R1 is hydrogen, —OH, —NH2, —NHalkyl or NO2;
each of R2 to R8, R60 and R61, independently, is hydrogen, alkyl, aryl, hydroxyalkyl, polyhydroxyalkyl or cycloalkyl;
R9 is alkyl, aryl, hydroxyalkyl, polyhydroxyalkyl or cycloalkyl;
each of R10 to R21 independently, is hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl or cycloalkyl;
R22 is alkyl, hydroxyalkyl, polyhydroxyalkyl or cycloalkyl;
each of R51 to R54, independently, is hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, cycloalkyl, cycloalkyl substituted by —C(O)R6, —SO2R9 or aryl substituted by R10, R11O-alkyl, —OR12, —SR13, —NR14R15, —CONR15R16, —C(O)OR17, —SO2—NR18R19, —SO2OR20, —C(O)R21 or —SO2R22;
each of R55 to R57 independently, is hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, cycloalkyl or aryl substituted by R10, R11O-alkyl, —OR12, —SR13, —NR14R15, —CONR15R16, —C(O)OR17, —SO2—NR18R19, —SO2OR20, —C(O)R21 or —SO2R22;
each R58 and R59, independently, is alkyl, hydroxyalkyl, polyhydroxyalkyl, cycloalkyl or aryl substituted by R10, R11O-alkyl, —OR12, —SR13, —NR14R15, —CONR15R16, —C(O)OR17, —SO2—NR18R19, —SO2OR20, —C(O)R21 or —SO2R22;
each of R230, R240 and R350, independently, is alkyl substituted by Q, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl substituted by Q, —C(O)R600 or —SO2R900, or aryl substituted by R100, R110O-alkyl, —OR120, —SR130, —NR140R150, —CONR150R160, —C(O)OR170, —SO2—NR180R190, —SO2OR200, —C(O)R210 or —SO2R220;
each of R201, R200, R600R900, independently, is alkyl substituted by Q, aryl substituted by Q, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl substituted by Q,
each of R100, R110, R120, R130, R170, R200, R210, R220, independently, is alkyl substituted by Q, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl substituted by Q,
each of R140R150R160R180 and R190 is hydrogen, alkyl, alkyl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q, with the proviso that each the groups —NR140R150, —CONR150R160 and —SO2—NR180R190 must contain one group Q;
is each of R310, R320, R330 and R340 independently, is alkyl substituted by Q, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl substituted by Q or aryl substituted by R100, R110O-alkyl, —OR120, —SR130, —N140R150, —CONR150R160, —C(O)OR170, —SO2—NR180R190, —SO2OR200, —C(O)R210 or —SO2R220;
each of R360 and R370 is hydrogen, alkyl, alkyl substituted by Q, aryl, aryl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q, with the proviso that the group —NHSO2R360R370 must contain one group Q;
each of R250R260R270R280R290 and R300, independently, is hydrogen, alkyl, alkyl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q, —C(O)R601, —SO2R901, or aryl substituted by R101, R111O-alkyl, —OR121, —SR131—NR141R151, —CONR151R161, —C(O)OR171, —SO2—NR181R191, —SO2OR202, —C(O)R211 or —SO2R221, with the proviso that each of the groups —NR250R260, —SO2NR270R280 and —CONR290R300 must contain one group Q;
each of R111, R121, R131, R141, R151, R161, R171, R181, R191, R202 and R211, independently, is hydrogen, alkyl, alkyl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q;
R221 is alkyl, alkyl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q;
R601 is hydrogen, alkyl, alkyl substituted by Q, aryl, aryl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q; and
R901 is alkyl, alkyl substituted by Q, aryl, aryl substituted by Q, hydroxyalkyl, hydroxyalkyl substituted in the alkyl group by Q, polyhydroxyalkyl, polyhydroxyalkyl substituted in the alkyl group by Q, cycloalkyl or cycloalkyl substituted by Q; and
Q is a group of the general formula (II)
wherein
each of R′, R″ and R′″, independently, is alkyl, aryl, arylalkyl, cycloalkyl, cycloalkylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkyl-alkyl, either of which can be substituted by heteroatom containing groups or R′ and R″ form together with the nitrogen to which they are bonded a 5- or 6-membered heterocyclic ring; and
A− is a cosmetically acceptable anion;
whereby the dyestuff of the formula (I) contains exactly one group Q;
whereby at least one of the groups Y and Z are groups other than hydrogen; and whereby T and R1 are hydrogen if X is different from hydrogen.
Alkyl groups may be straight-chain or branched and are preferably (C1-C6)-alkyl groups, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, n-pentyl, isopentyl or n-hexyl.
Cycloalkyl is preferably (C3-C8)-cycloalkyl and especially preferably cyclopentyl and cyclohexyl.
Aryl groups are preferably phenyl or naphthyl groups.
Halogen is preferably chlorine, bromine and fluorine.
A 5- or 6-membered heterocyclic ring which is formed by R′ and R″ is preferably a pyrrolidine, piperidine, morpholine or piperazine ring. R′, R″ and R′″ are preferably benzyl or (C1-C6)-alkyl and especially preferably benzyl, methyl and ethyl.
The dyestuffs of the general formula (I) may be salts of an organic or inorganic acid. Consequently, A− may be for example chloride, bromide, iodide, hydroxide, hydrogenphosphate, phosphate, carbonate, hydrogencarbonate, hydrogensulfate, perchlorate, fluoroborate, chlorozincate, methylsulfate, ethylsulfate, acetate, propionate, lactate or citrate or mixtures thereof.
The meaning of A− is generally given by the preparation method of the dyestuff of the general formula (I). Preferred meanings of A− are chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate and lactate.
Especially preferred dye compositions of the present invention comprise one or more dyestuffs of the general formula (I) in which
Z, T and R1 are hydrogen;
R is hydrogen or (C1-C6)-alkyl;
Y is —NR51R52, —NHSO2R58 or —OR58, wherein R51 is hydrogen and R52 is hydrogen, (C1-C6)-alkyl, hydroxy-(C1-C6)-alkyl or phenyl; R53 is hydrogen, (C1-C6)-alkyl or phenyl; and R58 is (C1-C6)-alkyl or phenyl;
X is —OR230 or —SR240, wherein R230 and R240 are (C1-C6)-alkyl substituted by Q, phenyl substituted by Q, (C1-C6)-alkyl-SO2-phenyl wherein the alkyl group is substituted by Q or (C1-C6)-alkyl-NH—SO2-phenyl, wherein the alkyl group is substituted by Q;
Q is a tris-(C1-C6)-alkyl-ammonium group, a bis(C1-C6)-alkyl-benzyl-ammonium group, a methyl-morpholinium group or a methyl-pyrrolidinium group; and
A− is chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate or lactate.
Examples of dyestuffs of this type are the dyestuffs of the formulae (Ic), (Ig), (Ih), (Ii), (Ir), (Is), (Idd), (Iee and (Iff)
Further especially preferred dye compositions of the present invention comprise one or more dyestuffs of the general formula (I) in which
R is hydrogen or (C1-C6)-alkyl;
Z, T and R1 are hydrogen;
Y is —NR51R52 or OR53, wherein R51 and R53 are hydrogen, R52 is (C1-C6)-alkyl, hydroxy-(C1-C6)-alkyl or phenyl;
X is —SO2NR270R280, —CONR290R300, —SO2OR310, —C(O)OR320, wherein R270 and R290 are hydrogen or (C1-C6)-alkyl; R280, R300, R310 and R320 are (C1-C6)-alkyl substituted by Q, hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q or phenyl substituted by Q;
Q is a tris(C1-C6)-alkyl-ammonium group, a bis(C1-C6)-alkyl-benzyl-ammonium group, a methyl-morpholinium group or a methyl-pyrrolidinium group; and
A− is chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate or lactate.
Examples of dyestuffs of this type are the dyestuffs of the formulae (Igg) to (Ijj):
Still further especially preferred dye compositions of the present invention comprise one or more dyestuffs of the general formula (I) in which
R is hydrogen or (C1-C6)-alkyl;
T and R1 are hydrogen;
Z is —NR51R52 or —NHC(O)R56, wherein R51 is hydrogen and R52 is hydrogen or (C1-C6)-alkyl and R56 is (C1-C6)-alkyl or phenyl;
Y is —NR51R52, wherein R51 is hydrogen, R52 is (C1-C6)-alkyl, hydroxy-(C1-C6)-alkyl or phenyl;
X is —OR230, —SO2NR270R280 or —SO2OR310, wherein R230 and R310 are (C1-C6)-alkyl substituted by Q, hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q, phenyl substituted by Q; R270 is hydrogen, R280 is (C1-C6)-alkyl substituted by Q or hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q;
Q is a tris(C1-C6)-alkyl-ammonium group, a bis(C1-C6)-alkyl-benzyl-ammonium group, a methyl-morpholinium group or a methyl-pyrrolidinium group; and
A− is chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate or lactate.
Examples of dyestuffs of this type are the dyestuffs of the formulae (Ix) and (Iy):
Still further especially preferred dye compositions of the present invention comprise one or more dyestuffs of the general formula (I) in which
Y, T and R1 are hydrogen;
R is hydrogen or (C1-C6)-alkyl;
Z is —NR51R52 or —NHC(O)R56, wherein R51 is hydrogen and R52 is hydrogen or (C1-C6)-alkyl and R56 is (C1-C6)-alkyl or phenyl;
X is —OR230, —SO2NR270R280, —SO2OR310 or —NR250R260 wherein R230 and R310 are (C1-C6)-alkyl substituted by Q, hydroxy-(C1-C6)-alkyl substituted in the alkyl group by Q, or phenyl substituted by Q; R27 is hydrogen, R28 is (C1-C6)-alkyl substituted by Q or hydroxy-(C1-C6)-alkyl substituted in the alkyl group by Q; R25 is hydrogen and R26 is (C1-C6)-alkyl substituted by Q;
Q is a tris(C1-C6)-alkyl-ammonium group, a bis(C1-C6)-alkyl-benzyl-ammonium group, a methyl-morpholinium group or a methyl-pyrrolidinium group which is bonded to X; and
A− is chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate or lactate.
Examples of dyestuffs of this type are the dyestuffs of the formulae (Iz), (Iaa), (Ibb) and (Icc):
Still further especially preferred dye compositions of the present invention comprise one or more dyestuffs of the general formula (I) in which
R is hydrogen or (C1-C6)-alkyl;
Z is —NR51R52 wherein R51 is hydrogen and R52 is hydrogen or (C1-C6)-alkyl;
Y is OR53, wherein R53 is hydrogen;
X is hydrogen,
T is alkyl substituted by Q or aryl substituted by —OR230; wherein R230 is (C1-C6)-alkyl substituted by Q, hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q, —C(O)R600 or —SO2R900 wherein R600 and R900 are (C1-C6)-alkyl substituted by Q or hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q;
Q is a tris(C1-C6)-alkyl-ammonium group, a bis(C1-C6)-alkyl-benzyl-ammonium group, a methyl-morpholinium group or a methyl-pyrrolidinium group; and
A− is chloride, sulfate, hydrogensulfate, methylsulfate, ethylsulfate, phosphate, formate, acetate or lactate.
Examples of dyestuffs of this type are the dyestuffs of the formulae (Ikk) to (Inn):
The dyestuffs of the formula (I) are partly known from for example U.S. Pat. No. 2,737,517, U.S. Pat. No. 2,888,467, CH 463666, FR 1,363,216 or DE 16 19 365.
Dyestuffs of the below defined formula (Ia), however, are still novel.
Accordingly, the present invention provides dyestuffs of the general formula (Ia)
wherein
R is hydrogen, alkyl, alkyl substituted by —OR2, —SR3 or —NR5R4, hydroxyalkyl, polyhydroxyalkyl, cycloalkyl, aryl substituted by R10, R11O-alkyl, —OR12, —SR13, —NR14R15, —CONR15R16, —C(O)OR17—SO2—NR18R19, —SO2OR20, —C(O)R21 or —SO2R22, —C(O)R6, —SO2NR7R8 or —SO2R9;
X is hydrogen, —OR235, —SO2NR270R280 or —SO2OR310;
Y is hydrogen, —NR51R52, —OR53, —SR54, —SO2NHR55, —NHC(O)R56, —SO2OR57, —NHSO2R58, —SO2R59, —NHSO2NR60R61, halogen or NO2;
Z is hydrogen, —NR51R52, —OR53, —SR54, —SO2NHR55, —NHC(O)R56, —SO2OR57, NHSO2R58, —SO2R59, —NHSO2NR60R61, halogen or NO2;
T is hydrogen or aryl substituted by —OR230;
R1 is hydrogen, —OH, —NH2, —NHalkyl or NO2;
R235 is aryl substituted by —SO2—NR180R190 or —SO2R220;
and Q, R2 to R22, R51 to R61, R100, R110, R120, R130, R140, R150, R160, R170, R180, R190, R200, R210, R220, R230, R270, R280 and R310 are defined as given above.
In preferred dyestuffs of the formula (Ia)
Z is hydrogen or amino;
R1 is hydrogen or hydroxy;
R is hydrogen;
Y is hydroxy or amino; and
X is —OR235, wherein R235 is (C1-C6)-alkyl-NH—SO2-phenyl, wherein the alkyl group is substituted by Q; and
T is hydrogen or aryl substituted by —OR230, wherein R230 is (C1-C6)-alkyl substituted by Q, hydroxy(C1-C6)-alkyl substituted in the alkyl group by Q, —C(O)R600 or —SO2R900, wherein R600 and R900 are (C1-C6)-alkyl substituted by Q or hydroxy-(C1-C6)-alkyl substituted in the alkyl group by Q.
Especially preferred dyestuffs of the formula (Ia) are the dyestuffs (Ii), (Is) and (Ikk) to (Inn).
The dyestuffs of the general formula (I) can be obtained by generally known methods, for instance via Ullmann type substitutions of anthraquinone derivatives which contain exchangeable atoms or groups such as halogen, sulfonic acid group or nitro group by aliphatic amines, aromatic amines, alcohols, phenols, thiols, thiophenols and sulfur containing reagents. General procedures are described, for example, in “Ullmann's Encyclopedia of Industrial Chemistry”, VCH Verlagsgesellschaft, Weinheim 1985, volume A2, Anthraquinone Dyes and Intermediates, pages 357-412. The preparing reactions of the dyestuffs can be carried out in an organic solvent such as dimethylformamide, dimethylacetamide, halogenobenzenes etc., in water or preferably in surplus reagent. It is of advantage to carry out the reactions at elevated temperatures, preferably between 60° C. and 150° C. Acid-binding agents must be added or an excess of amine is used. Adding usual catalysts such as copper or copper salts or mixtures thereof can be advantageously.
The alkoxyanthraquinones of the general formula (I) can be obtained via the conversion of anthraquinonesulfonic acids by alcoholic alkali at 50-130° C. The direct replacement of halogen to alkoxy- or aryloxyanthraquinones can be advantageously carried out with e.g. alcoholate or phenolate generated in situ with alkali or advantageously with metallic sodium. It is advantageously to carry out these reactions under water free conditions with dried reagents.
Preferred hair dye compositions according to the present invention comprise dyestuff mixtures comprising one or more dyestuffs of the general formula (I) and one or more direct or oxidation dyestuff.
Examples of such direct dyes include dyes from the publicly available dyestuff list issued by The European Cosmetic, Toiletry and Perfumery Association (COLIPA) and especially Acid Yellow 1, Disperse Red 17, Basic Brown 17, Acid Black I, 4-Nitro-o-phenylenediamine, Picramic acid, HC Red 13, N,N-bis(2-hydroxyethyl)-2-nitro-p-phenylenediamine, HC Red 7, HC Blue 2, HC Yellow 4, HC Yellow 2, HC Orange 1, HC Red 1, HC Red 3,4-Amino-3-nitrophenol, 2-Hydroxyethylamino-5-nitroanisole, 3-Nitro-p-hydroxyethylaminophenol, 3-Methylamino-4-nitrophenoxytheanol, 2-nitro-5-glyceryl methylaniline, HC Violet 1, HC Orange 2, HC Yellow 9,4-Nitrophenylaminoethylurea, HC Red 10, HC Red 11, 2-Hydroxy-ethyl picramic acid, HC Blue 12, Hydroxyethyl-2-nitro-p-toluidine, HC Blue 11, HC Yellow 7, HC Yellow 10, 4-Amino-2-nitrophenylamine-2-carboxylic acid, 2-Chloro-6-ethylamino-4-nitrophenol, HC Violet 2,2-Amino-6-chloro-4-nitrophenol, 4-Hydroxpropylamino-3-nitrophenol, HC Yellow 13, 2,6-Diamino-3-((pyridin-3-yl)azo)pyridine, N-(2-nitro-4-aminophenyl)-allylamine, Basic Violet 2, Basic Red 51, Basic Yellow 87, Basic Orange 31, Basic Red 76, Basic Brown 16, Basic Yellow 57, Acid Orange 7, Acid Red 33, Acid Yellow 23, Acid Blue 9, Acid Red 92, Acid Yellow 3, Acid Violet 43, Disperse Violet 1, Acid Blue 62, Disperse Black 9, Hydroxyanthraquinoneaminopropylmethyl morpholinium methosulfate, Lawsone, HC Blue 14, Curry Red, Acid Red 18, Acid Red 52, Acid Green 25, Disperse Blue 377, Pigment Red 57, HC Blue 15, Tetrabromophenol Blue, Basic Blue 7, Basic Blue 26, Basic Blue 99, Basic Violet 10, Basic Violet 14; cationic dyes as described in Japanese Patent Laid-Open Nos. 2204/1983, 118832/1997 and Japanese Laid-Open Publications (PCT) Nos. 501322/1996 and 507545/1996 (please check numbers); and methine type cationic dyes having a cyanine structure.
Preferred inventive hair dye compositions containing mixtures usually contain one or more dyestuffs of the general formula (I) in an amount 90 to 10 wt. % and one or more direct or oxidation dyestuff in an amount of 10 to 90 wt. % based on the total weight of the dyestuff mixture.
Preferably, they contain one or more dyestuffs of the general formula (I) in an amount 80 to 20 wt. % and one or more direct or oxidation dyestuff in an amount of 20 to 80 wt. % based on the total weight of the dyestuff mixture.
Especially preferably, the they contain one or more dyestuffs of the general formula (I) in an amount 65 to 35 wt. % and one or more direct or oxidation dyestuff in an amount of 35 to 65 wt. % based on the total weight of the dyestuff mixture.
Further preferred hair dye compositions according to the present invention contain the dyestuff of the general formulae (I) in amounts of 0.0001 to 20 wt. %, preferably 0.001 to 20 wt. %, more preferably from 0.01 to 10 wt. % and especially preferably from 0.05 to 5 wt. %, based on the weight of the hair dye composition.
Hair dye compositions according to the present invention comprising a dyestuff mixture as described above usually have a dyestuff content between 0.001 to 20 wt. %, preferably from 0.01 to 20 wt. %, more preferably from 0.05 to 10 wt. % and especially preferably from 0.1 to 5 wt. %, based on the weight of the hair dye composition.
In the hair dye compositions according to the present invention, the inventive dyestuffs of the general formula (I) exhibit a high storage stability within a wide pH range from 2 to 11, which is a pH range ordinarily employed for hair dyes, so that the hair dye composition of the present invention can be used at any pH in the above-described pH range. Use in a pH range of from 2 or greater is however preferred from the viewpoint of dyeing property. Hair dye compositions of a pH range of 2 to 8 and hair dye compositions of a pH range of 8 to 12 are preferred.
The desired pH value is usually adjusted using an alkali agent. Examples of alkali agents include ammonia, alkanolamines such as monoethanolamine and isopropanolamine or salts thereof, guanidium salts such as guanidine carbonate and hydroxides such as sodium hydroxide. The inventive hair dye compositions contain an alkali agent preferably in an amount of from 0.01 to 20 wt. %, more preferably from 0.1 to 10 wt. %, especially preferably from 0.5 to 5 wt. % based on the total weight of the composition.
Since the dyestuffs of the formula (I) have high stability against oxidizing agents, the inventive hair dye composition may also be applied to hair together with an oxidizing agent. In other words, it can be provided as a two-part composition composed of a first part containing the dyestuff of the general formula (I) and a second part containing an oxidizing agent. In this case, hair dyeing and bleaching can be carried out simultaneously, which facilitates more vivid hair dyeing.
Examples of oxidizing agent include hydrogen peroxide, persulfates such as ammonium persulfate, potassium persulfate and sodium persulfate, perborates such as sodium perborate, percarbonates such as sodium percarbonate and bromates such as sodium bromate and potassium bromate. Hydrogen peroxide is especially preferred from the viewpoints of hair bleaching property, stability and effectiveness of the inventive dyestuffs of the general formula (I). Hydrogen peroxide may be used in combination with another oxidizing agent. The oxidizing agent is preferably used in an amount of from 0.5 to 10 wt. %, especially preferably from 1 to 8 wt. %, based on the hair dye composition.
The first part containing the inventive dyestuff of the general formula (I) and the second part containing the oxidizing agent are mixed at a volume ratio preferably ranging from 2:1 to 1:3.
In the hair dye composition of the present invention, an oxidation dye can be used in combination with the inventive dyestuff of the general formula (I). Such combined use enables considerably vivid and intense dyeing which cannot be accomplished by the single use of the oxidation dye. For the oxidation dye, known developers and couplers ordinarily employed for an oxidation type hair dye can be used.
Examples of the developer include paraphenylenediamine, toluene-2,5-diamine, 2-chloro-paraphenylenediamine, N-methoxyethyl-paraphenylenediamine, N,N-bis(2-hydroxyethyl)-paraphenylenediamine, 2-(2-hydroxyethyl)-paraphenylenediamine, 2,6-dimethyl-para-phenylenediamine, 4,4′-diaminodiphenylamine, 1,3-bis(N-(2-hydroxyethyl)-N-(4-aminophenyl)amino)-2-propanol, PEG-3,2,2′-paraphenylenediamine, paraaminophenol, paramethylaminophenol, 3-methyl-4-aminophenol, 2-aminomethyl-4-aminophenol, 2-(2-hydroxyethylaminomethyl)-4-aminophenol, orthoaminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-acetamidophenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-hydroxypyrimidine and 4,5-diamino-1-(4′-chlorobenzyl)pyrazole and salts thereof.
Examples of the coupler include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-amino-4-(2-hydroxyethylamino)anisole, 2,4-diamino-5-methylphenetole, 2,4-diamino-5-(2-hydroxyethoxy)toluene, 2,4-dimethoxy-1,3-diaminobenzene, 2,6-bis(2-hydroxyethylamino)toluene, 2,4-diamino-5-fluorotoluene, 1,3-bis(2,4-diaminophenoxy)propane, metaminophenol, 2-methyl-5-aminophenol, 2-methyl-5-(2-hydroxyethylamino)phenol, 2,4-dichloro-3-aminophenol, 2-chloro-3-amino-6-methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-metaaminophenol, 2-methyl-4-methoxy-5-(2-hydroxyethylamino)phenol, 2-methyl-4-fluoro-5-aminophenol, resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4-hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxybenzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-methylenedioxyphenol, 3,4-methylenedioxyaniline, 1-(2-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine, 2,6-dimethoxy-3,5-diaminopyridine, 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-methoxypyridine, 2-amino-3-hydroxypyridine, and 2,6-diaminopyridine and salts thereof.
As each of the developer and coupler, at least two of the above-described developers or couplers are usable. The content of each of them is preferably from 0.01 to 20 wt. %, especially preferably from 0.05 to 10 wt. % based on the hair dye composition.
To the hair dye composition of the present invention, an autoxidation dye typified by an indole or an indoline, or a known direct dye such as a nitro dye or a disperse dye can also be added.
Addition of a polyol, polyol alkyl ether, cationic or amphoteric polymer and/or silicone to the hair dye composition of the present invention is preferred, because the resulting composition can dye the hair uniformly and provides improved cosmetic effects of the hair.
In addition to the above-described components, those ordinarily employed as a raw material for cosmetics can be added to the hair dye composition of the present invention. Examples of such an optional component include hydrocarbons, animal or vegetable fats and oils, higher fatty acids, organic solvents, penetration promoters, cationic surfactants, natural or synthetic polymers, higher alcohols, ethers, amphoteric surfactants, nonionic surfactants, anionic surfactants, protein derivatives, amino acids, antiseptics, chelating agents, stabilizers, antioxidants, plant extracts, crude drug extracts, vitamins, colorants, perfumes and ultraviolet absorbers.
The hair dye composition of the present invention can be prepared in a conventional manner to form a one-part composition or a two-part composition having a first part containing an alkali agent and a second part containing an oxidizing agent. The inventive dyestuff of the general formula (I) may be incorporated in at least one of these parts of the two-part or three-part composition. When the hair dye composition of the present invention is of the one-part type, it is applied to the hair directly, while when it is of the two- or three-part type, these parts are mixed just before hair dyeing and the mixture is applied to the hair.
In the case of preparation of a two-part type hair dye composition, the first part is typically prepared by mixing the Inventive dyestuff of the general formula (I) and optionally an oxidation dye and adjusting the pH of the mixture to 8 to 12 with an alkali agent such as ammonia. The second part is prepared by incorporating about 2 to 6 wt. % of hydrogen peroxide, adjusting the mixture to weakly acidic with phosphoric.
The hair dye composition of the present invention can be provided in the form of powder, transparent liquid, emulsion, cream, gel, paste, aerosol, aerosol foam or the like. It preferably has a viscosity of 2000 to 100000 mPa·s upon its application to the hair (after mixing of all the parts when the composition is a two-part or three-part type). The above-described viscosity is measured at 20° C. by using a Brookfield rotary viscometer (No. 5 spindle, 5 rpm).
The present invention also refers to a process for colouring hair characterized in that a hair dye composition as described above is applied onto hair, left for 1 to 45 minutes and than rinsed off from hair.
In a preferred inventive process the hair dye composition is mixed with a composition comprising at least one oxidizing agent.
In the following, embodiments of the invention are described in detail for the purpose of illustrating only and not for the purpose of limiting the same.
5.0 parts of sulfur, 14.0 parts of sodium sulfide hydrate are dissolved in 80 parts of ethyl alcohol at 50-60° C. Thereafter 10 parts of 1-amino-2-bromo-4-hydroxy-anthraquinone were added and the reaction mixture was kept for 5 hours under reflux. After cooling off and acidification with 100 parts of 2N HCl, the precipitate was filtered off and washed with water. Upon drying 14.3 parts of a red powder were obtained. The isolated product was taken in 250 parts of 3% sodium hydroxide solution, stirred for 20 minutes and filtered off. The sulfur-free filtrate was treated further with 7.7 parts of 2-dimethylaminoethyl chloride hydrochloride and the solution was heated at reflux for 7 hours. After cooling off, the pH was adjusted to ca. 9.0 with conc. HCl and the precipitate was filtered off, washed and dried to give 10.1 parts of product. For the quaternisation the isolated dye was dispersed in 75 parts of chlorobenzene and treated with 3.3 parts of dimethylsulfate. The mixture was stirred at 30° C. for 1 hour and thereafter for another hour at 40° C. After cooling at room temperature the precipitate was filtered off and washed with acetone. Upon drying 11.7 parts of the dye of formula Ig were obtained. The reddish violet dye Ig is very good water-soluble. The analytic data are consistent with the assigned structure for dye Ig.
Melting point: >204° C.;
λmax (H2O)=535 nm (9100).
15 parts of 1,4-diamino-9,10-dioxo-9,10-dihydro-anthracene-2-sulfonic acid, 100 parts of 2-dimethylamino-ethanol and 15 parts of solid KOH were heated together at 80° C. and kept at this temperature for 1 hour. After cooling off, mixture was poured into 500 parts of cold water. The precipitate was filtered off, washed with water and dried to yield a reddish violet powder. 2.5 parts of the dyestuff thus obtained were dispersed in 50 parts of chlorobenzene and treated with 1.0 part of dimethylsulfate. The reaction mixture was stirred at 40° C. for 3½ hours. The precipitate was filtered off at 30° C. and washed with acetone. Upon drying 3.3 parts of the dye of formula Ih were obtained. The reddish violet dye 1 h is very good water-soluble. The analytic data are consistent with the assigned structure for dye 1 h.
Melting point: >223° C.;
λmax (H2O)=533 nm (9200), 569 nm (9000).
30 parts of 4-(1-amino-4-hydroxy-9,10-dioxo-9,10-dihydro-anthracen-2-yloxy)benzenesulfonyl chloride were dispersed in 160 parts of acetonitrile. 20 parts of 3-dimethylaminopropylamine were added dropwise. After stirring 4 hours at room temperature, the reaction mixture was filtered off, washed with water and dried to yield 35.0 parts of a dark red powder. 10.0 parts of the dye thus obtained were dispersed in 100 parts of chlorobenzene and treated with 2.4 parts of dimethylsulfate. The reaction mixture was stirred at 40° C. for 3 hours. The precipitate was filtered off and washed with acetone. Upon drying 10.6 parts of the dye of the formula Ii were obtained. The red dye Ii is very good water-soluble. The analytic data are consistent with the assigned structure for dye Ii.
Melting point: >145° C.;
λmax (H2O)=521 nm (12200), 550 nm (shoulder, 9600).
5.7 parts of N-[4-amino-3-(2-dimethylamino-ethoxy)-9,10-dioxo-9,10-dihydro-anthracen-1-yl]-methanesulfonamide, prepared from 1-amino-4-methanesulfonylamino-9,10-dioxo-9,10-dihydro-anthracene-2-sulfonic acid, N,N-dimethylaminoethanolamine and potassium hydroxide at 60° C., were dispersed in 50 parts of chlorobenzene and treated with 1.7 parts of dimethylsulfate. The reaction mixture was stirred at room temperature for 5 hours. The precipitate was filtered off and washed with acetone. Upon drying 5.8 parts of the dye of the formula Idd were obtained. The red dye Idd is very good water-soluble. The analytic data are consistent with the assigned structure for dye Idd.
Melting point: >206° C.;
λmax (H2O)=515 nm (9000).
5.5 parts of N-[5-amino-6-(2-dimethylamino-ethoxy)-9,10-dioxo-9,10-dihydro-anthracen-1-yl]-acetamide, prepared from 5-acetylamino-1-amino-9,10-dioxo-9,10-dihydro-anthracene-2-sulfonic acid, N,N-dimethylaminoethanolamine and potassium hydroxide at 60° C., were dispersed in 75 parts of chlorobenzene and treated with 1.7 parts of dimethylsulfate. The reaction mixture was stirred at room temperature for 5 hours. The precipitate was filtered off and washed with acetone. Upon drying 4.8 parts of the dye of the formula Iz were obtained. The red dye Iz is very good water-soluble. The analytic data are consistent with the assigned structure for dye Iz.
Melting point: >280° C.;
λmax (MeCN)=487 nm (18300).
The dyes listed in Table 1 below were dissolved into Base Formulation 1 together with the compounds as follows:
The dyes listed in Table 2 below were dissolved into Base Formulation 2 together with the compounds as follows:
a) Approximately 1.5 g of the Base Formulation I was applied to 1 g of undamaged white goat hair at 30° C. for 30 mins. At the end of the processing time the tresses were rinsed with water, shampooed and then dried.
The color of the tresses was recorded by measuring L, a and b values of the tresses before and after the colouring using a hand held Datacolor Mercury colour-measuring instrument and the value of delta E, which is a known measure for the chroma, was calculated according to the well-known equation: ΔE=(ΔL2+Δa2+Δb2)1/2 for each example (this will apply equally to every example hereinafter).
The results are shown in Table 1
b) Approximately 1.5 g of the Base Formulation 2 was applied to 1 g of undamaged white goat hair at 30° C. for 30 mins. At the end of the processing time the tresses were rinsed with water, shampooed and then dried. The color of the tresses was recorded as given in Example A above.
The results are shown in Table 2
| Number | Date | Country | Kind |
|---|---|---|---|
| 06101466.8 | Feb 2006 | EP | regional |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/EP07/51043 | 2/2/2007 | WO | 00 | 12/2/2008 |
