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AssigneeFuji Photo Film Co., Ltd.
InventorsHiroshi Arakatsu, Nobuo Seto, Toshiki Taguchi
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There is disclosed a dye-fixing element utilizable to form an image by releasing or producing an image-forming dye or a precursor thereof in proportion or contraproportion to developed silver formed by development after imagewise exposing of a photosensitive silver halide and thereafter by diffusion or diffusive-transfer of the dye, which element comprises a polymeric dye mordant containing a recurring unit of the formula (A) and/or (B): wherein R12 and R22 each are H or an alkyl group, Y1 and Y2 each are ←CONR4—, ←COO— or ←CH(OH)CH2O—, X is Cl, Br, I or OH, Z is an atomic group necessary to form a 5- to 7-membered heteroring together with the N, R13 and R23 each are H, CH3, C2H5, or a halogen atom, and R4 is H or an alkyl group having 1-4 carbon atoms, and the symbol ← is a bond on the side of the main chain of the polymer. There is also disclosed a method for forming a color image excellent in fastness to light without causing any color-mixing.
A dye-fixing element utilizable to form an image by releasing or producing an image-forming dye or a precursor thereof in proportion or contraproportion to developed silver formed by development after imagewise exposing of a photosensitive silver halide and thereafter by diffusion or diffusive-transfer of the dye, which element comprises a polymeric dye mordant containing a recurring unit represented by the following formula (A) and/or a recurring unit represented by the following formula (B):
A method for forming an image comprising subjecting a photosensitive silver halide to development after imagewise exposure, releasing or producing an image-forming dye or a precursor thereof in proportion or in contraproportion to the developed silver, and forming an image by diffusion or diffusive transfer of the dye,
Dependencies are inferred from the claim text.