| 摘要 |
PROBLEM TO BE SOLVED: To provide a planographic print master that satisfies requirement for trimming performance, fog during plate making, platemaking density and water proofing performance, and is suitable for a platemaking machine having a built-in red LED element and a trimming function. SOLUTION: The planographic print master has a photosensitive layer containing zinc oxide and at least two kinds of dyes layered on a base material, wherein the two kinds of dyes have absorption wavelength ranges of 620 to 660 nm (dye A) and 380 to 570 nm (dye B). COPYRIGHT: (C)2008,JPO&INPIT
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