Abstract:
A monoazo pigment is represented by the general formula (1), a tautomer of the monoazopigment, and a salt or a hydrate thereof: wherein R 1 , P 1 , and Q 1 each independently represents a hydrogen or a substituent, G represents the non-metallic atoms necessary to complete a 5- to 6-membered heterocyclic group, W represents a substituent capable of binding to the heterocyclic group constituted by G, t represents an integer of from 0 to 5, Het-1 represents a group selected from the aromatic heterocyclic groups represented by the general formula (2): wherein X, Y, Z, W 0 , W 1 , W 2 , W 3 , and W 4 each independently represents a hydrogen or a substituent, and * shows the point of attachment to the azo linkage in the general formula (1).
Abstract:
A pigment composition containing an azo pigment represented by the following general formula (1) and a pigment derivative having a hydrophilic group: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, or an arylsulfonyl group, R 1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R 2 represents a substituent, A represents an aromatic 5- or 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4, with the general formula (1) not containing any ionic hydrophilic group.
Abstract:
To provide a process for producing an azo pigment showing excellent coloring characteristics such as tinctorial strength and hue and showing excellent fastness such as light fastness and ozone fastness, an azo pigment dispersion, a coloring composition, and an ink for inkjet recording. A process for producing, for example, an azo pigment represented by the general formula (9), which includes a step of preparing a solution containing a compound represented by the following general formula (7) and an acid, and a step of bringing the solution incontact with a diazonium salt (8) derived from a heterocyclic amine.
Abstract:
The invention provides a pigment dispersion composition including an azo pigment represented by formula (1), in which the azo pigment represented by formula (1) does not have an ionic hydrophilic group, an azo pigment derivative and a dispersant. In formula (1), G represents a hydrogen atom, an aliphatic group, an aryl group or a heterocyclic group; R 1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group or a heterocyclic group; R 2 represents a substituent; A represents a heterocyclic group; m represents an integer of 0 to 5; and n represents an integer of 1 to 4, wherein: when n = 2, the azo pigment is a dimer formed via R 1 , R 2 , A or G; when n = 3, the azo pigment is a a trimer formed via R 1 , R 2 , A or G; and when n = 4, the azo pigment is a tetramer formed via R 1 , R 2 , A or G.
Abstract:
The present invention refers to dyestuffs of the formula (I) and its tautomeric forms, wherein D is a group of the formula D1, D2, D3, D4 or D5 (D1) (D2) (D3) (D4) (D5) wherein T, X, Y, Z, A1 to A4, G, R1, R5, R7 to R11, m, n, o, p, q, r, s and t are defined as given in claim 1, a process for their manufacture and hair dye compositions containing them.
Abstract:
Die vorliegende Anmeldung betrifft Mittel zum Färben und gegebenenfalls gleichzeitigem Aufhellen von keratinischen Fasern, insbesondere menschlichen Haaren, wobei das Mittel in einem kosmetischen Träger mindestens eine Verbindung der Formel (I), enthält.