PRINTING ON WATER-IMPERMEABLE SUBSTRATES WITH WATER-BASED INKS

摘要

A method of printing with water-based inkjet inks on a water- impermeable, low-surface-energy substrate, includes: a) modifying surface properties of the substrate to increase the surface energy; b) coating the modified surface of the substrate with a first layer comprising a colorless water-based tie-layer composition; c) coating over the first layer with a second layer including a colorless and transparent water-based ink-receptive composition including: i) a water-soluble multivalent metal salt; and ii) a hydrophilic binder polymer; d) depositing directly on the surface of the second layer one or more water-based ink compositions containing an anionically stabilized pigment colorant, wherein the one or more water-based ink compositions are deposited in a predetermined pattem with an inkjet deposition system in response to electrical signals; and e) drying the first and second coated layers and the deposited inks to substantially remove the water.