醛类化合物对品红成色剂的影响──彩卷“品边”产生与防止

Effects of Aldehydes on Magenta Color Couplers-Formation of "Magenta Edge"on Prints of Color Roll Film and Its Prevention

本文介绍了品红成色剂与难类反应后，其感光度和反差衰退、引起彩卷产生“品边”，用二当量品红成色剂取代四当量品红成色剂后，醛类不再与成色剂反应，“品边”现象将自动消失。

Caused by the reaction of aldehydes with magenta color couplers,the speed and contrast of magenta layer of roll film may decline during storage, thus provoking'magenta edge'; on color prints picture. By using bivalent magenta color couplers instead of quadravalent magenta couplers. aldehydes will no longer react with magenta couplers thus preventing the formation of that 'magenta edge