Patent ID: 6534234
Filing Date: 2003-03-18
Classification: G03C,G03F,Y10S

Abstract:
A package of photosensitive planographic printing plates which comprises a stack of the photosensitive planographic printing plates wherein an uncoated protection paper is interposed between each of the photosensitive planographic printing plates in the stack, wherein a mat layer comprising convexes is formed on the photosensitive layer of the photosensitive planographic printing plate, wherein both of the coefficient of static friction between the surface of the photosensitive layer and the surface of the protection paper and the coefficient of static friction between the surface opposite to the photosensitive layer of the photosensitive planographic printing plate and the surface of the protection paper are 0.3 to 0.8, the surface opposite to the photosensitive layer of the photosensitive planographic printing plate has a mean surface roughness of 0.15 or more, and the surface of the protection paper on the photosensitive layer side of the printing plate has a smoothness of 5 seconds or more, wherein the photosensitive planographic printing plate is resistant to slippage on the protection paper, and wherein the photosensitive planographic plate is resistant to abrasion on the photosensitive layer.