Aqueous developable precolored diazo imaging element

Details Aqueous developable precolored diazo imaging element Aqueous developable precolored diazo imaging element

G - Physics

03

F

G03F 3/10 (2006.01)

Patent

CA 2088261

2088261 9202857 PCTABS00010 A precolored, water-developable, photosensitive elements comprising: (A) a support; (B) a colorant-containing layer consisting essentially of (1) a colorant, and (2) a polyvinyl alcohol binder, said binder being about 87-100 % hydrolyzed and being of sufficiently high molecular weight to be film-forming; and (C) a photosensitive layer consisting essentially of: (3) a photosensitive, water-soluble, polymeric diazo resin; and (4) a polyvinyl alcohol binder, said binder being about 87-100 % hydrolyzed and being of sufficiently high molecular weight to be film-forming; and (D) an adhesive layer; wherein said colorant-containing layer (B) and said photosensitive layer (C) may be combined into a single layer colorant-containing, photosensitive coating (E) which must be in contact with the adhesive layer (D) or alternatively, said colorant-containing layer (B) and said photosensitive layer (C) may be in separate but contiguous layers provided that either layer (B) or (C) must be in contact with the adhesive layer (D), and provided that either the colorant-containing layer (B), the photosensitive layer (C) or the adhesive layer (D) is in contact with the support (A).

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