Heat bleachable elements having polymeric acid layer adjacent he

Details Heat bleachable elements having polymeric acid layer adjacent he Heat bleachable elements having polymeric acid layer adjacent he

1996-01-05

1997-07-29

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430510, 430517, 430519, 430523, 430619, G03C 1498

Patent

active

056520913

ABSTRACT:
Heat bleachable elements have antihalation layers composed of metallized or unmetallized formazan dyes, hexaarylbiimidzoles having alkoxy substituents and film forming binders that soften upon heating. These layers are rapidly bleached at relatively low temperatures. Polymeric acidic layers adjacent the antihalation layers provide an acidic component that increases bleaching rates when the acidic layer is also softened during processing.

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