发明名称 PRODUCTION OF SOLID TREATING AGENT FOR SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
摘要 PROBLEM TO BE SOLVED: To produce a solid treating agent for a silver halide photographic sensitive material excellent in continuous production stability by specifying the surface tension of additive water to be used for the wet agitation granulation process of the solid treating agent for a silver halide photographic sensitive material produced by wet agitation granulation. SOLUTION: In the solid treating agent for a silver halide photographic sensitive material produced by wet agitation granulation, the surface tension of the additive water used for the wet agitation granulation is specified to <=60 dyn/cm. By specifying the surface tension of the additive water as above described, diffusion on the powder surface is caused faster than absorption of the added water by the powder, and granulation can be completed with an extremely small amt. of the water added. The amt. of water added is <=5 wt.% of the solid amt. to be added. If the solid treating agent contains at least potassium carbonate, p-phenylene diamine deriv., iron salt of polyaminocarboxylic acid, thiosulfate, hydroquinone and aluminum sulfate, the effect is more enhanced.
申请公布号 JP2000002974(A) 申请公布日期 2000.01.07
申请号 JP19980165086 申请日期 1998.06.12
申请人 KONICA CORP 发明人 YOSHIMOTO HIROSHI;KAWASHIMA HIROKI
分类号 G03C5/26;(IPC1-7):G03C5/26 主分类号 G03C5/26
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