Heat-activated bleaching of silver images using activator...

Details Heat-activated bleaching of silver images using activator... Heat-activated bleaching of silver images using activator...

G - Physics

03

C

96/186, 96/219,

G03C 7/00 (2006.01) C07D 277/36 (2006.01) C07D 277/56 (2006.01) G03C 1/498 (2006.01) G03C 5/26 (2006.01) G03C 7/28 (2006.01)

Patent

CA 1090188

Abstract of the Disclosure A dry, activator sheet for a dry, thermal silver dye-bleach process comprises a support having thereon a nonvolatile, diffusible acid and a non-hydrolyzable polymeric vehicle having a pH of 6.0 or less, especially 4.0 or less, and a melting point lower than 200°C. The activator sheet is useful to bleach a silver image in an element containing a bleachable dye. - 1 -

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