Silver halide photographic material

Abstract

Abstract PURPOSE: To keep photographic chemicals in a photosensitive material stable and prevent the photographic characteristics from deteriorating in preservation by adding a compound, to one of the layers constituting the material, abtd. by reacting an N- contg. org. base or a quat. N-contg. compound with phosphoric acid ester. CONSTITUTION: To one or more among the layers constituting a photosensitive material is added a compound represented by the formula (where D is an N-contg. org. base or a quar. N-contg. compound, each of R 1 and R 2 is H, optionally substituted alkyl, alkenyl, cycloakyl, phenyl or heterocyclic, R 1 and R 2 are not H simultaneously, they may be bonded to each other to form a ring, each of them may have a repeating structure to form pyrophosphoric acid or polyphosphoric acid ester, and m is 1W5). Thus, photographic chemicals can stably be mixed into the photosensitive material, and the occurrence of desensitization, a fog increase, a maximum density lowering, etc. is prevented. In addition, the material can be developed rapidly. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Satoru Kawakatsu
• 👤 Shigeto Hirabayashi
• 👤 Hidetaka Ninomiya
• 👤 Yutaka Kaneko

Bibliographic Details