摘要:
A hair dye preparation contains diamino-nitrobenzene compounds as a direct hair dye or contains diamino-nitrobenzene compounds as coupling components in combination with developing components for oxidation dyestuffs. A process for dyeing human hair comprises applying one of these preparations to the hair.
摘要:
WHEREIN X AND Y ARE AMINO OR SUBSTITUTED AMINO GROUPS AND AQUEOUS DYESTUFF COMPOSITION CONTAINING SAID NITROPYRIDINES.
(O2N-),X,Y-PYRIDINE
A PROCESS FOR THE DYEING OF LIVING HUMAN HAIR CONSISTING ESSENTIALLY OF TREATING HUMAN HAIR AT A TEMPERATURE OF FROM ABOUT 10* C. TO40* C. WITH ANAQUEOUS SOLUTION CONTAINING A NITROPYRIDINE HAVING THE FORMULA
摘要:
In an aqueous composition for dyeing human hair comprising an oxidation dyestuffs combination of a developer component and a coupling component and customary oxidation dyestuff adjuvants, the improvement which comprises utilizing as said oxidation dyestuff combination, (a) from 0.3 to 5 percent by weight of said composition, of a coupling component 3-aminopyrazol-5-one having the formula WHEREIN R is selected from the group consisting of -NH-CO-R1, NH-CO-NH-R1 and -NH-CS-NH-R1 wherein R1 is selected from the group consisting of a hydrocarbon radical with 1 to 12 carbon atoms and a heterocyclic radical, and (b) from 0.3 to 5 percent by weight of said composition, of a developer component compound, known for hair dyes, selected from the group consisting of aromatic polyfunctional amines having at least one primary amino group and at least one polyfunctional group in the ortho or para position and heteroaromatic amino compounds as well as the method of dyeing human hair utilizing said oxidation dyestuff combination of a developer component and a coupling component.
摘要:
Hair is dyed with azo dyes of the formula wherein R1 and R2 are H or an alkyl or alkanol residue of 1-3 C atoms and X is a phenylene or naphthylene radical. A number of dyes are specified including 2, 21-and 4, 41-diaminoazobenzene and 4-amino-41-dimethylaminoazobenzene. The dyes may be applied singly or in admixture and/or together with known anthraquinone dyes and anionic or non-ionic washing agents. The dye composition may be in the form of an emulsion cream and adjusted to a pH of 8.5-9.5. Other specified additives are thickeners, perfumes and conditioners and permanent waving agents containing mercapto groups. Examples are given. Specifications 957,119 and 1,005,915 are referred to.
摘要:
A process for the dyeing of living human hair consisting essentially of treating human hair at a temperature of from about 10*C to 40*C with an aqueous solution containing a nitropyridine having the formula
WHEREIN X and Y are amino or substituted amino groups, aqueous dyestuff compositions containing said nitropyridines and novel nitropyridines.