Heat developing color photosensitive material

Abstract

Abstract PURPOSE:To obtain a photosensitive material which has excellent picture density, capable of decreasing fogging and excellent in other photographic characteristics by incorporating a specified ortho-or para-sulfonamide phenols and an acetylene compd. respectively on a photosensitive layer. CONSTITUTION:This material has a photosensitive silver halide, a reducing agent, the compd. expressed by formula I or II and the dye donative compd. which releases a diffusion type dye in accordance with silver-developing on a supporting body, and is incorporated with the compd. expressed by formula II in the photosensitive layer. In formula I and II, Ball is the org. ballast group which is capable of converting the compd. to a nondiffusion type, Y is the atom group necessary to form benzene neucleus and naphthalene nucleus, R1 is alkyl, aralkyl group, etc., R2 is hydrogen atom, cycloalkyl group, etc., (n) is integer 0-5. In formula III, L is a single bond or bivalent connecting group, (n) is integer 1-4, when (n) is 1, R1 is hydrogen atom. carboxyl group, etc., when (n) is 2-4, R1 is 2-4 valent residual group, R2 is hydrogen atom, alkyl group, etc.

Inventors

• 👤 Yoshiki Uehara
• 👤 麗樹 上原
• 👤 Hiroshi Hara
• 👤 宏 原

Bibliographic Details