Abstract:
Novel systems for preparing dye images utilizing novel elements including a dyeable stratum and a layer containing a colorproviding material which is nondiffusible but upon oxidation can release a diffusible color-providing moiety for transfer to the dyeable stratum to impart thereto a color transfer image.
Abstract:
THIS INVENTION RELATES TO NOVEL IMMOBILE REDUCING AGENTS OF THE P-AMIOPHENOL TYPE WHICH MAY BE DEFINED AS ZWITTERIONIC (INNER) SALTS OF P-AMINOPHENOLS CONTAINING AN ANCHORING OR IMMOBILIZING MOIETY.
Abstract:
ORGANIC DERIVATIVES OF THE TRIHYDRIDES OF TRIVALENT ELEMENTS IN GROUP V-A OF THE PERIODIC TABLE HAVING AN ATOMIC NUMBER GREATER THAN 7 AND LESS THAN 83 ARE USED AS SILVER HALIDE SOLVENTS IN PHOTOGRAPHIC PROCESSING COMPOSITIONS. SPECIFICALLY, ORGANIC PHOSPHINES, ARSINES, STIBINES AND MIXTURES THEREOF ARE USED IN PHOTOGRAPHIC PROCESSING COMPOSITIONS WHICH FIND PARTICULAR UTILITY IN SILVER DIFFUSION TRANSFER TECHNIQUES.
Abstract:
This invention relates to a class of phthalein indicator dyes useful as optical filter agents in photographic processes to protect a selectively exposed photosensitive material from further exposure during processing in the presence of incident light. Such dyes comprise 3,3-disubstituted phthalides and 3,3disubstituted naphthalides wherein the 3,3 substituents are benzindole radicals.