Patent ID: 7370956
Filing Date: 2008-05-13
Classification: B41M

Abstract:
1. A method of producing ink jet printed images with high resistance to physical and chemical damage on plastic surfaces, comprising the steps of: a. providing a plastic object; b. coating at least part of the surface of the plastic object with an under-coating solution that does not contain a reactive species; c. evaporating off the volatile part of the under-coated solution, thus depositing a solid film on the surface of the plastic object; d. providing at least one ink-jet ink comprising a colorant and aqueous carrier; e. jetting the ink by means of an ink-jet system onto the surface of the under-coating on the plastic object; f. warming the printed surface to drive part of the water in the ink into the under-coating and to evaporate the remaining part of the water; g. over-coating the dried surface with a water-based coating; and h. heating the over-coating to dry or cure it and to seal-in the previously deposited ink and under-coating.