B - Operations – Transporting – 44 – C
Patent
B - Operations, Transporting
44
C
B44C 1/22 (2006.01) B41C 1/00 (2006.01) B41M 3/00 (2006.01) B41M 5/00 (2006.01) G03F 1/00 (2006.01) G03F 7/00 (2006.01) H05K 3/00 (2006.01)
Patent
CA 2103863
TITLE METHOD FOR PREPARING HIGH RESOLUTION WASH-OFF IMAGES AND NON-PHOTOSENSITIVE ELEMENTS FOR USE THEREIN A method for preparing high resolution wash-off images, preferably using ink jet printing, comprising the sequential steps of: (a) providing a non- photosensitive layer, preferably on a substrate, wherein the non-photosensitive layer comprises a polymer selected from the group consisting of acid containing polymers having at least 0.4 milliequivalents of acid functions per gram of polymer and amine containing polymers having at least 0.4 milliequivalents of amine functions per gram of polymer, (b) applying an aqueous ink imagewise to the non-photosensitive layer to form a salt of the polymer in the ink applied areas, said aqueous ink comprising an aqueous carrier medium and a salt-forming agent; and (c) washing the non-photosensitive layer with an aqueous solution to remove the imaged areas of the non- photosensitive layer. 28
Ma Sheau-Hwa
Matthews Andrew Ernest
Walker Peter
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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