17 September 2002 Thermal plate for lithography and its components
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This kind of plate that has an imaging layer, comprising an admixture of (1) a resole resin, (2) a novolac resin, (3) a latent Bronsted acid (4) an infrared absorber, and (5) colorant, relates to an image recording material which can be used as a material for a lithographic printing plate. The radiation-sensitive composition is sensitive to both ultraviolet and infrared radiation. The plate is intended for digital exposure with an infrared laser with 830 nm in a computer to plate (CTP) machine. The dot density of the printing plate ranges from 2 to 98 percent, and the resolution can reach 6μ. On the aspect of making printing plate these characteristics achieve acceptance criterion of printing. In addition, the level of laser energy needed to image a thermal plate is substantially higher than that needed to image today's conventional plates.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cunlin Zhang, Cunlin Zhang, Qingli Zhou, Qingli Zhou, Shengli Cao, Shengli Cao, "Thermal plate for lithography and its components", Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483355; https://doi.org/10.1117/12.483355


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