Process for production of positive images

Details Process for production of positive images Process for production of positive images

G - Physics

03

F

96/152

G03F 7/004 (2006.01)

Patent

CA 1280023

ABSTRACT PROCESS FOR PRODUCTION OF POSITIVE IMAGES Positive images are produced by (i) exposing to actinic radiation in a predetermined pattern a composition supported or, a substrate, which composition comprises a film-forming organic material and a substance which releases a sulphonic acid on exposure to actinic radiation, thereby rendering the composition more soluble in the developer in the exposed areas than the unexposed areas, and ii) treating the composition with the aqueous base developer to remove the unexposed areas. The image-forming process may be used in the production of printing plates and electrical circuits.

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