Patent ID: 7048988
Filing Date: 2006-05-23
Classification: B41N,C25F,Y10T

Abstract:
1. A support for a lithographic printing plate, wherein surface area ratios obtained from three-dimensional data which can be found by measuring 512×512 points in 50 μm square on the surface with an atomic force microscope meets the following requirements (1-i) to (1-iii): (1-i) A surface area ratio ΔS (1-ii) A surface area ratio ΔS (1-iii) A surface area ratio ΔS ΔS 50(2-50) is the surface area ratio obtained after extracting components with wavelength of 2 μm or more and 50 μm or less from the three-dimensional data, and ΔS 50(0.2-2) represents the surface area ratio obtained after extracting components with wavelength of 0.2 μm or more and 2 μm or less from the three-dimensional data.