Uniformly developable silver halide photographic sensitive material

Abstract

Abstract PURPOSE:To obtain the uniformly developable silver halide photographic sensitive material which obviates the generation of sludge during the processing by a multistage tunnel development method by incorporating nucleus forming agents and nucleus formation accelerators into this photosensitive material. CONSTITUTION:The photosensitive material is successively developed by the developers D contained and held in the respective narrow developing slit tunnels of plural developing units. At least one kind of the nucleus forming agents and nucleus formation accelerators are incorporated into the constituting layers of the photosensitive material at this time. The developing unit has the slit tunnel 2, the side walls of which are the housing walls of a developing unit housing 1 and which is decreased in the height (h) and length (l). The upper slope constitutes the downflow surface for the developer D supplied from a rectangular orifice 11. The perpendicular surfaces facing each other on the right and left in the housing constitute the base or ceiling surface of the develop ing slit tunnel 2. The stable development processing is executed without unequal development and the generation of sludge is obviated in this way even if a large amt. of the multistage tunnel development is executed.

Inventors

• 👤 Takuji Hasegawa
• 👤 拓治 長谷川
• 👤 Iku Meji
• 👤 目時　郁

Bibliographic Details