发明名称 Method for the addition of powders to photographic systems
摘要 A process for improving the method by which a powder such as a dye is added to a gelatino silver halide element is described. This process involves encapsulating the powder within a gelatin capsule. This process avoids cross-contamination and dusting when powder is added to solvent and also reduces the use of extra solvent in the manufacture of the element.
申请公布号 US5180651(A) 申请公布日期 1993.01.19
申请号 US19910693897 申请日期 1991.05.01
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 MASON, EILEEN
分类号 G03C1/005;G03C7/388 主分类号 G03C1/005
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