Patent ID: 6607565
Filing Date: 2003-08-19
Classification: C09B,C09D,D06P

Abstract:
A method of printing, comprising:printing a substrate by the inkjet process employing an ink which is a dye preparation comprising, (i) based on the weight of the preparation, from 0.1 to 30% by weight of at least one dye selected from the group consisting of anthraquinones or quinophthalones which are free of ionic groups, and (ii) from 0.1 to 20% by weight of a dispersant which is an arylsulfonic acid-formaldehyde condensation product which is combined with 3 to 50% by weight, based on the weight of the dispersant, of at least one aromatic or long-chain aliphatic carboxylic acid, its salts, its anhydrides or mixtures thereof, or from 0.1 to 20% by weight of a water-soluble dispersant based on alkoxylated phenols, and (iii) from 10 to 90% by weight of a mono- or polyhydric alcohol or mixtures thereof and optionally water, with the proviso that the dye preparation whose liquid medium is exclusively water and polyalkylene glycol is excluded if the dye preparation is formulated with a dispersant which is an arylsulfonic acid-formaldehyde condensation product.