显影抑制剂对银盐CTP版材的提高反差作用

doi:10.7517/j.issn.1674-0475.2000.01.42

影像科学与光化学 ›› 2000, Vol. 18 ›› Issue (1): 42-50.DOI: 10.7517/j.issn.1674-0475.2000.01.42

显影抑制剂对银盐CTP版材的提高反差作用

周树云, 陈萍, 胡秀杰, 郑德水

中国科学院感光化学研究所, 北京100101

收稿日期:1999-04-09 修回日期:1999-07-06 出版日期:2000-02-20 发布日期:2000-02-20
通讯作者: 陈萍
基金资助:
国家自然科学基金资助项目(批准号69848002);美国柯达公司资助

HIGH CONTRAST CAUSED BY SEVERAL INHIBITORS ON SILVER HALIDE CTP PRINTING PLATE

ZHOU Shuyun, CHEN Ping, HU Xiujie, ZHENG Deshui

Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China

Received:1999-04-09 Revised:1999-07-06 Online:2000-02-20 Published:2000-02-20

摘要/Abstract

摘要： 高反差是印刷用感光材料的重要特性.本文着重研究了4种化学显影抑制剂对银盐扩散转移型CTP版材反差的影响.结果发现,硫代水杨酸、2-巯基苯并噻唑、6-硝基苯并咪唑和苯并三氮唑等单独使用时,对版材反差都有不同程度的提高作用;而硫代水杨酸与6-硝基苯并咪唑配合使用时,得到了超高反差效果.通过计算,给出了各个抑制剂最佳浓度时的反差系数值.另外,利用线性CCD技术对物理显影过程的研究表明,添加抑制剂扩大了不同曝光级的显影诱导期和显影速率之间的差别,从而提高了反差.

关键词: 高反差, 物理显影, 抑制剂

Abstract: High contrast is essential for printing plate technology. In this paper, four inhibitors were introduced into developers for silver halide diffusion transfer system. Their effects on contrast were studied at different concentration of inhibitors by applying CCD technique. It was found that thiosalicylic acid improved the contrast at a wide range of concentration; 2-mercaptobenzithiazole improved the contrast at higher concentration; 6-nitro-benzimidazole and benzotriazole can slightly improve the contrast. And a super-high contrast was obtained when 6-nitro-benzimidazole and thiosalicylic acid were used together. The contrast coefficients were calculated for each inhibitor. An explanation based on development kinetic curves was proposed.

Key words: high contrast, physical development, inhibitor

周树云, 陈萍, 胡秀杰, 郑德水. 显影抑制剂对银盐CTP版材的提高反差作用[J]. 影像科学与光化学, 2000, 18(1): 42-50.

ZHOU Shuyun, CHEN Ping, HU Xiujie, ZHENG Deshui. HIGH CONTRAST CAUSED BY SEVERAL INHIBITORS ON SILVER HALIDE CTP PRINTING PLATE[J]. Imaging Science and Photochemistry, 2000, 18(1): 42-50.

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显影抑制剂对银盐CTP版材的提高反差作用

HIGH CONTRAST CAUSED BY SEVERAL INHIBITORS ON SILVER HALIDE CTP PRINTING PLATE

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