Positive imaging diffusion - transfer dry silver system
AssigneeMinnesota Mining and Manufacturing Company
InventorsRichard C. Cotner, David C. Weigel, Kumars Sakizadeh
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Abstract
A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising: (a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and (b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.
Claims17
A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process, said composite structure comprising:
- (a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and
- (b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a colored, image-forming formazan dye.
Dependencies are inferred from the claim text.