Dry silver photo-sensitive compositions, dyes for use therein and preparation of such dyes
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0012020A1
公开(公告)日:1980-06-11
Dry silver photo-sensitive compositions comprising an intimate mixture of a substantially light-insensitive silver compound which upon reduction gives a visible change and sufficient of a silver halide to catalyse said reduction to give a visible change in those areas where the silver halide has been exposed to light and when the mixture is heated in the presence of a reducing agent, and as an acutance dye a compound of the general formula:
干银光敏组合物,包括一种基本不感光的银化合物的亲密混合物,该化合物在还原时会产生可见的变化,以及一种足以催化上述还原的卤化银的亲密混合物,在卤化银暴露于光的区域以及在存在还原剂的情况下加热该混合物时,卤化银会产生可见的变化: