Diffusion transfer processes or agents therefor Photosensitive materials for such processes

GPHYSICS G03Photography G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHOTOGRAPHIC PROCESSES

G03C8/00Diffusion transfer processes or agents therefor Photosensitive materials for such processes

G03C8/02Photosensitive materials characterised by the image-forming section G03C8/04the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals G03C8/045with the formation of a subtractive dye image G03C8/06Silver salt diffusion transfer G03C8/08the substances transferred by diffusion consisting of organic compounds G03C8/10of dyes or their precursors G03C8/12characterised by the releasing mechanism G03C8/14oxidation of the chromogenic substances G03C8/16initially diffusible in alkaline environment G03C8/18Dye developers G03C8/20initially non-diffusible in alkaline environment G03C8/22Reduction of the chromogenic substance G03C8/24Photosensitive materials characterised by the image-receiving section G03C8/243Toners for the silver image G03C8/246Non-macromolecular agents inhibiting image regression or formation of ghost images G03C8/26Image-receiving layers G03C8/28containing development nuclei or compounds forming such nuclei G03C8/30Additive processes using colour screens Materials therefor Preparing or processing such materials G03C8/32Development processes or agents therefor G03C8/34Containers for the agents G03C8/36Developers G03C8/365containing silver-halide solvents G03C8/38containing viscosity increasing substances G03C8/40Development by heat Photo-thermographic processes G03C8/4006using materials covered by the groups G03C8/04 - G03C8/06 G03C8/4013using photothermographic silver salt systems G03C8/402Transfer solvents therefor G03C8/4033Transferable dyes or precursors G03C8/404Photosensitive layers G03C8/4046Non-photosensitive layers G03C8/4053Intermediate layers G03C8/406Covering or backing layers G03C8/4066Receiving layers G03C8/4073Supports G03C8/408Additives or processing agents not provided for in groups G03C8/402 - G03C8/4046 G03C8/4086Base precursors G03C8/4093characterised by the apparatus used G03C8/42Structural details G03C8/423for obtaining security documents G03C8/426Structures with micro-capsules G03C8/44Integral units G03C8/46characterised by the trapping means or gas releasing means G03C8/48characterised by substances used for masking the image-forming section G03C8/50Peel-apart units G03C8/52Bases or auxiliary layers Substances therefor G03C8/54Timing layers G03C8/56Mordant layers