Patent ID: 7211294
Filing Date: 2007-05-01
Classification: B41M,C08J

Abstract:
1. A method of making an inkjet medium comprising a support and a porous, swellable, foamed polymer ink receiving layer on top of the inkjet medium, wherein said support is selected from the group consisting of resin coated paper, film base, acetate and polyethylene terephthalate, said method comprising the steps of: coating a support with a solution comprising a swellable hydrophilic polymer and a blowing agent or simultaneously coating a support with a plurality of solutions, each comprising a swellable hydrophilic polymer and a blowing agent; and after the step of coating said support, causing said blowing agent to generate gas bubbles within the solution or solutions, causing foaming of said hydrophilic polymer, thereby forming one or a plurality of ink-receiving layers, including at least the porous, swellable, foamed polymer ink receiving layer on top.