| 摘要 |
PURPOSE:To obtain the titled image which does not occur discolor of a color image for long period, and is remarkably reduced yellowish stain on white ground, and has long shelf life by incorporating a specific compd. to a photographic layer of the titled material. CONSTITUTION:The titled material contains at least one kind of compd. shown by the formula wherein R and R' are each same or different with each other, and are each hydrogen atom, alkyl or alkenyl group, etc., R1 and R1' are each same or different with each other, and are each hydrogen atom, halogen atom or alkyl group, etc., R2 is hydrogen atom, alkyl, alkenyl or aryl group, R3 and R4 are each hydrogen atom, alkyl, alkenyl, alkoxy, alkenoxy, aryloxy or alkylthio group, etc., (n) is an integer of 1-3. The titled material which does not occur the discolor of color image for the long period, and is remarkably reduced yellowish stain on white ground, and has long shelf life is obtd. |
