USE OF AQUEOUS POLYURETHANE DISPERSIONS IN PRINTING INKS AND CORRESPONDING PRINTING PROCESS.

摘要

The present invention relates to the use of aqueous dispersions containing a pigment (B) which is at least partially enveloped by polyurethane (A) and also at least one polymerization inhibitor (C), wherein polyurethane (A) can be obtained by reacting (a) from 15 to 70% by weight of diisocyanate or polyisocyanate which has an average of from 1 to 10 allophanate groups and an average of from 1 to 10 C-C double bonds per molecule and optionally (b) from 0 to 60% by weight of a further diisocyanate or polyisocyanate with (c) from 5 to 50% by weight of compounds having at least two groups which are capable of reacting with isocyanate, where amounts in % by weight are based on the total polyurethane (A), in printing inks.