Patent ID: 7511085

Claim:
A liquid printing ink for flexographic and/or gravure printing, comprising a) one or more binders, b) a solvent or a mixture of different solvents, c) one or more colorants, and optionally further additives, wherein the one or more binders (a) constitute from 5 to 30% by weight of the printing ink and at least one of the binders is a hyperbranched polymer which has a non-unifom molecular composition and structure has functional groups, and is a hyperbranched polyether or a hyperbranched polyetheramide, the solvent or the mixture of different solvents (b) constitutes from 50 to 80% by weight of the printing ink, and any solvent as well as any mixture of different solvents is selected from the group consisting of hydrocarbons, alcohols, substituted alcohols, esters and mixtures thereof, and the one or more colorants (c) constitute from 5 to 25% by weight of the printing ink, and the ink comprises no water.