摘要
研究热交联型计算机直接制版版材的成像层配方、成像以及后处理方法 .在配方中主要包含 3类物质 :酚醛树脂 (可熔性酚醛树脂和酚醛清漆树脂 )、红外吸收染料、潜布郎斯台德酸 (质子酸 )以及一些添加成分 ,如对苯二甲醛和 3,4 ,5 三甲氧基苯甲酸 .用红外激光曝光后 ,再经过烤版、显影 ,可以形成阴图型版材 ;实验证明图象区是亲油墨的 ,非图象区是亲水的 .
In this paper, the composition and the imaging theory of thermal printing plate, using computer plating system, are investigated. In the imaging layer of the printing plates, three kinds of materials are induced(1) phenolic resins(resole resins and novolak resins),(2) infrared absorber,(3) latent bronsted acid (diphenyliodonium hexafluorophosphate), and some other additives such as terephthalaldehyde and 3,4,5 trimethoxybenzoic acid. After exposure, heating and developing a negative working plate was obtained.
