High resolution polyimide images using non-photosensitive...

Details High resolution polyimide images using non-photosensitive... High resolution polyimide images using non-photosensitive...

B - Operations, Transporting

41

C

B41C 1/10 (2006.01) B41M 3/00 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2174275

A method for preparing high resolution wash-off polyimide images is described having the sequential steps of (a) providing a non-photosensitive layer containing a substantially non-crystalline poly(amic acid) polymer or salt thereof on a substrate; (b) applying an aqueous ink imagewise to the non- photosensitive layer to change the solubility in the ink-applied areas, the aqueous ink containing a solubility altering agent; (c) washing the non- photosensitive layer with an aqueous solution to remove the soluble areas; and (d) converting the poly(amic acid) polymer to a polyimide.

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