Patent ID: 6268105
Filing Date: 2001-07-31
Classification: G03C,Y10S

Abstract:
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): ##STR19##wherein R.sub.12 and R.sub.22 each stand for a hydrogen atom or an alkyl group, Y.sub.1 and Y.sub.2 each stand for .rarw.CONR.sub.4 --, .rarw.COO-- or .rarw.CH(OH)CH.sub.2 O--, X stands for a chlorine atom, a bromine atom, an iodine atom or a hydroxyl group, Z stands for an atomic group necessary for forming a 5- to 7-membered hetero ring together with the nitrogen atom, R.sub.13 and R.sub.23 each stand for a hydrogen atom, a methyl group, an ethyl group, or a halogen atom, and R.sub.4 stands for a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and wherein .rarw. stands for a bond on the side of a main chain of the polymer.