直接正像乳剂灰化过程的研究  

INVESTIGATION ON THE FOGGING PROCESS IN THE DIRECT POSITIVE EMULSION

作　　者：符玉华[1] 周本茂[1] 任新民[1] 

机构地区：[1]中国科学院感光化学研究所,北京100101

出　　处：《感光科学与光化学》1991年第2期91-94,共4页Photographic Science and Photochemistry

摘　　要：本文系统地研究了灰化剂用量,pH,pAg对内敏直接正像乳剂灰化过程的影响。从研究中得到,随着灰化剂用量和pH的增加,直接正像乳剂的最大密度、最小密度和反差均增大,而感光度则降低。当pAg=7.3时,最大密度和反差均出现最大值,而感光度则随着pAg的增大而增大。In this paper, the influence of the amount of fogging agent, pH and pAg on the fogging process in direct positive emulsion was investigated. It was found that the Dmax, Dmin and gamma increase with increasing amount of fogging agent and pH, whereas the sensitivity of the emulsion decreases. The Dmix and gamma first increase with increasing pAg and then decrease. The maximum Dmax appears at pAg - 7.3. The sensitivity of the direct positive emulsion increases monotonically with increasing pAg.

关 键 词：直接正像乳剂 灰化 灰化剂 

分 类 号：TQ575.21[化学工程—精细化工]