Methods for improving ink layer adhesion to a substrate surface

Abstract

Methods of enhancing adhesion of an ink layer to a surface of a substrate, and composite articles formed through the methods, are provided. The methods comprise applying a primer composition to the surface to form a primer layer disposed on the substrate. The primer composition comprises a first polymer comprising a repeating unit, wherein the repeating unit comprises a localized negatively charged dipole having a local dipole moment of greater than 2 debyes, and wherein the repeating unit comprises no localized positively charged dipole having a local dipole moment of greater than 0.8 debyes; and a second polymer comprising a repeating unit comprising a tertiary amine group, wherein the second polymer is a branched polymer having a branch with a primary amine group that is pendant from the backbone of the polymer. The weight ratio of the first polymer to the second polymer is from about 19:1 to about 1:9.

Dependencies are inferred from the claim text.