Abstract:
A composition for dyeing keratinic fibers comprises a mixture of a base compound having an aromatic nucleus substituted by (1) either two amino groups or (2) by an amino group and a hydroxyl group, the substituents being in the ortho or para position relative to each other, and, as a coupler, a benzimidazole derivative. The weight ratio of the base to the coupler in the composition generally ranges between 1:1 to 1:30 The composition is applied to the hair, preferably at a pH of 8-10 in amounts sufficient to dye the hair and in the presence of an oxidizing agent such as hydrogen peroxide.
Abstract:
Keratinic fiber dye compositions comprising a para or ortho diamino or amino-hydroxy aromatic or heterocyclic oxidation dye and an indoline derivative coupling agent; and the process of dyeing human hair with this composition and an oxidizing agent.
Abstract:
An improved dye compound 1-methylamino-2-nitro-4-(2''hydroxyethyl)-methylaminobenzene and a method of making it. A hair dye composition containing this compound and the method of dyeing hair with this composition.
Abstract:
A COMPOSITION FOR DYEING KERATINIC FIBERS COMPRISING EFFECTIVE AMOUNTS OF AROMATIC PARADIAMINE OF THE FORMULA
1,4-DI(H2N-),2,6-DI(R-),3-(CH3-O-)BENZENE
IN WHICH R AND R'' EACH REPRESENT A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND METHYL, BUT R'' MUST BE METHYL WHEN R IS METHYL, AND META-AMINO-PHENOL WHICH SERVES AS A COUPLING SUBSTANCE OF THE FORMULA
3-(R2-NH-),4-CH3,6-R1-PHENOL
IN WHICH R1 REPRESENTS A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND HYDROGEN AND R2 REPRESENTS A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CARBOMAYLMETHYL AND DIETHYL CARBAMYLMETHYL, BUT R1 MUST BE CHLORINE WHEN R2 IS HYDROGEN, AND THE METHOD OF DYEING HAIR WITH THIS COMPOSITION.
Abstract:
THE INVENTION RELATE TO DYEING HUMAN HAIR WITH AN AQUEOUS COMPOSITION CONTAINING (2''-HYDROXYETHYL)-1AMINO-2-NITRO-(2'' - HYDROXYETHYL)-4-METHYLAMINOBENZENE, PREFERABLY AT ROOM TEMPERATURE.
Abstract:
A two-stage process for producing indoanilines includes oxidizing in a first stage a paraphenylene diamine to a quinone diimine and in a second stage condensing the said quinone diimine with a phenolic compound. The resulting indoanilines can be incorporated into a dye composition for keratinous fibers, especially, human hair.
Abstract:
in which n is a whole number between two and six inclusive, while R2 and R3 represent H, a lower alkyl, or a lower hydroxyalkyl, and the alkyl portion of R R''''R1 R2 and R4 having 1 to 6 carbon atoms. Some of these derivatives are new compounds, and the invention includes new hair dyeing compositions comprising such compounds and the method of applying them to the hair.
RADICAL IN WHICH R'' represents H, methyl, or NO2, or an OC-R'''' radical in which R'''' represents a lower alkyl; AND AT LEAST ONE OF R and Z is H; R1 represents a lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl or
IN WHICH: R represents H or a lower alkyl; Z represents H, an
Methods of making nitroparaphenylene diamine derivatives responding to the formula: