Abstract: A process for producing indamine by condensing 2,6-diamino pyridine on a paraphenylene diamine or a benzoquinone diimine or a paranitroso N,N-dialkyl aniline. The resulting indamine can be incorporated into a dye composition for keratinic fibers, especially human hair.

Abstract: A process for nonpermanently dyeing human hair comprises applying to the hair a dye composition prepared immediately before application of the same to the hair, the composition comprising an aqueous solution of a solid anhydrous dye selected from the group consisting of indamine, indoaniline and indophenol hair dyes, present in the composition in amounts of 0.0005-2 percent by weight thereof.

Abstract: Some novel diazo compounds, and salts thereof, useful for dyeing keratinous fibers, particularly human hair are disclosed. Illustrative of these compounds are the methyl sulfate salts of 1'-(4'-N,N-dimethylaminobenzene) 2-azo 4-cyano 1-methyl pyridinium methyl sulfate and 1'-(4'-amino 8'-hydroxy naphthalene) 2-azo 1-methyl pyridinium. Hair setting lotions, hair dye compositions and hair lacquers containing these compounds, preferably in alcoholic solutions, are also disclosed.

Abstract: Indoaniline having the formula ##SPC1##Wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each independently represent a member selected from the group consisting of hydrogen, lower alkyl or halogen with 1 - 2 of these substituents being other than hydrogen; R.sub.5, R.sub.6 and R.sub.7 each independently represent a member selected from the group consisting of hydrogen, lower alkyl and lower alkoxy; R.sub.8 and R.sub.9 each independently represent a member selected from the group consisting of hydrogen, lower alkyl and lower alkyl substituted with a member selected from the group consisting of amino, hydroxy, carbamoyl, piperidinyl and acylamino, R.sub.8 and R.sub.5 or R.sub.9 and R.sub.

Abstract: Indoaniline of the formula ##SPC1## wherein R.sub.1 represents hydrogen, halogen, alkyl or alkoxy; R.sub.2 and R.sub.3 represent alkyl; R.sub.4, R.sub.5 and R.sub.6 each independently represent hydrogen, halogen, alkyl, alkoxy, acylamino, ureido or carbalkoxyamino and R.sub.5 can also represent amino, alkylamino, hydroxy alkylamino or carbamylalkylamino, the alkyl and alkoxy groups above being able to contain 1 to 6 carbon atoms and the acyl group from 2 to 7 carbon atoms with the condition that R.sub.5 does not represent hydrogen, chlorine, methyl or methoxy and when R.sub.5 represents acetylamino, R.sub.6 does not represent hydrogen; it being understood that the above compounds can be present in the tautomeric form of that represented by formula (I). The indoaniline is usefully employed in dye compositions for keratinic fibers, especially living human hair.

Abstract: A compound of the formula ##SPC1##Wherein R is -alkylaminodialkyl, -alkylmorpholino or -alkylpiperidino and X is halogen, the alkyl portion of R having 1 to 6 carbon atoms, and the salts of said compound. This compound can be used as an intermediate to produce hair dyes.

Abstract: Hair dye and hair-setting lotion compositions contain a diphenylamine of the formula ##SPC1##Wherein Z represents amino, acylamino or hydroxy, R.sub.1, R.sub.2 and R.sub.3 represent hydrogen or lower alkyl, R.sub.4 represents hydrogen, lower alkyl or together with R.sub.1 and the nitrogen atom to which R.sub.4 is attached form a dihydro-oxazine or pyrroline heterocycle and R.sub.5 represents hydrogen, lower alkyl or together with R.sub.2 and the nitrogen atom to which R.sub.5 is attached form a dihydro-oxazine or pyrroline heterocycle and the acid salts of said diphenylamine.

Abstract: The invention pertains to indamines and salts thereof which are usefully employed in a dye composition for coloring keratinous fibers, especially human hair and in hair setting lotions which also includes a film-forming cosmetic resin.

Abstract: Indoaniline having the formula ##SPC1##Wherein Z represents amino, acylamino or hydroxy; R.sub.5, R.sub.6 and R.sub.7 each independently represent hydrogen, lower alkyl or lower alkoxy; R.sub.8 and R.sub.9 each independently represent hydrogen, lower alkyl or lower alkyl substituted with hydroxy, carbamoyl, acylamino or piperidinyl, R.sub.8 and R.sub.5 or R.sub.9 and R.sub.6 being able to form with the adjacent nitrogen and carbon atoms a dihydrooxazine or pyrroline heterocycle; and the salts formed by these indoanilines with an organic or inorganic acid, and the double zinc salts of these indoanilines, and the tautomers thereof. These indoanilines are usefully employed for dyeing keratinous fibers, and in particular, human hair.

Abstract: A dye composition for keratinic fibers comprising in combinationA. at least one oxidation base comprising a paraphenylenediamine, present in the form of a free base, or in the form of an acid addition salt thereof andB. at least one coupler of the formula: ##SPC1##wherein Y represents a member selected from the group consisting of --NHCOCH.sub.3 and --NHCONH.sub.2 ; and X represents a member selected from the group consisting of fluorine, chlorine, and bromine, or the acid addition salt of the compound of formula (I).

Abstract: Hair dye and hair setting lotion compositions containing an indoaniline having the formula ##SPC1##Wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents hydrogen, halogen, lower alkyl having 1-4 carbon atoms and lower alkoxy having 1-4 carbon atoms. The indoaniline is prepared by condensing on 2,6-diamino pyridine a corresponding paraminophenol, a salt of the paraminophenol or a corresponding quinonechloroimide.

Abstract: Diphenylamines having the formula ##SPC1##Wherein: Y represents a member selected from the group consisting of a hydroxy and amino, R.sub.1 and R.sub.3, each independently, represent a member selected from the group consisting of hydrogen, halogen, lower alkyl, lower alkoxy, a ureido residue, and -NHCOR wherein R is lower alkyl, R.sub.2 represents a member selected from the group consisting of hydrogen, halogen, lower alkyl, lower alkoxy, a ureido residue, -NHCOR wherein R is lower alkyl, and --NHR.sub.8 wherein R.sub.8 represents a member selected from the group consisting of hydrogen, lower alkyl, lower hydroxyalkyl and carbamyl lower alkyl, with the proviso that when R.sub.2 is --NHR.sub.8, R.sub.3 is not hydrogen R.sub.4, R.sub.5, R.sub.6, and R.sub.7 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl and lower alkoxy, with the proviso that when Y is hydroxy, R.sub.

Abstract: A dye composition for keratinic fibers comprising in combination:A. at least one oxidation base selected from the group consisting of an aromatic or heterocyclic compound carrying either two amino groups or one amine group and one hydroxy group, fixed in para position relative to each other on the aromatic or heterocyclic nucleus of said compound, said oxidation base being in the form of a free base or in the form of an acid addition salt thereof; andB. at least one coupler of the formula: ##SPC1##Wherein X represents a member selected from the group consisting of F, Cl or Br.