Abstract Pigment compositions of resins and xanthene dyestuffs, which are prepared by dissolving the dyestuff salt with the addition of alkali in an organic solvent miscible with water or in an organic amine, dissolving in this solution such a resin which can be precipitated again by addition of an acid, or adding such a solution of such a resin in one of the said solvents, mixing the mixture thus obtained with an aqueous acid and recovering the pigment composition precipitated. The pigment compositions according to the invention are distinguished by an extraordinary good brilliance of the prints produced therewith. They are extremely easy to disperse in printing varnishes and therefore especially valuable in use.
The process of claim 1, wherein as resins natural resinic acids, the oxidized, hydrogenated, dimerized or disproportionated derivatives thereof or synthetic resins, acid resin esters, aldehyde-modified resins, maleinate resins and other compounds obtainable by the reaction of dienes with resins, phenyl-modified resins, addition products of resins with hydrocarbons containing double bonds, condensation products of resins and phenol-(form)-aldehyde condensation products, resin condensation products with xylene-formaldehyde resins, reaction products of resins and terpene-maleinate resins or mixtures of these resins are used.
Claim 2
Dependent Claim
33 words
A process according to claim 1 wherein an organic solvent miscible with water is used and the dyestuff is solubilized by addition of an alkali metal or alkaline earth metal hydroxide or carbonate.
Claim 3
Dependent Claim
17 words
A pigment composition of a resin and an xanthene dyestuff made by the process of claim 1.
Claim 4
Dependent Claim
17 words
A pigment composition of a resin and an xanthene dyestuff made by the process of claim 1.