| abstract |
THE INVENTION RELATES TO COLOR PHOTOGRAPHY BY DIFFUSION-TRANSFER. THE PHOTOSENSITIVE SHEET CONTAINS A SUPPORT COATED WITH AT LEAST ONE LAYER OF SILVER HALIDE EMULSION WITH WHICH IS ASSOCIATED A DYE IMAGE-FORMING COMPOUND, OF FORMULA: (CF DRAWING IN BOPI) IN WHICH Q IS A HYDROGEN OR HALOGEN ATOM, A SULFAMOYL GROUP, A -SOR GROUP, OR R IS AN ALKYL OR BENZYL GROUP, A -COOR GROUP OR R IS A HYDROGEN ATOM, AN ALKYL OR PHENYL GROUP, A CARBAMOYL GROUP; Q IS A HYDROXY, NHCOR OR NHSOR GROUP, R IS A HYDROGEN ATOM, OR AN ARYL OR ARALKYL GROUP; R IS AN ALKYLENE GROUP; R IS AN ALKYL GROUP, Y IS AN AZO COLORANT RELEASING GROUP; M AND Q ARE 0 OR 1; J IS A SULPHONYL OR CARBONYL GROUP; Z IS A HYDROGEN ATOM OR AN ALKYL GROUP; X IS A DIVALENT GROUP; G IS A HYDROXY GROUP OR A HYDROLYSABLE ACYLOXY GROUP. THE PHOTOSENSITIVE SHEET OF THE INVENTION PROVIDES MAGENTA IMAGES OF IMPROVED QUALITY. |