| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a slip sheet for a lithographic printing plate which closely adheres to an image forming face of the lithographic printing plate by being charged appropriately with electricity in a manufacturing process of the lithographic printing plate, and exhibits good release properties, discharging properties and storing properties in an automatic plate feeding apparatus by rapid attenuation of being charged with electricity after lamination, and in heat treatment, can prevent at the same time, sticking between the slip sheet and the image forming face from generating, and is especially effective in the lithographic printing plate of a heat mode system and a photon mode system wherein an image is formed by laser exposure. <P>SOLUTION: The slip sheet for the lithographic printing plate for protecting the lithographic printing plate is characterized by a coefficient of static friction between faces where the slip sheet is brought into contact with the image forming face of the lithographic printing plate being at most 0.35, a surface strength of the slip sheet being at least 15, and a Clark hardness of the slip sheet being 20-50. <P>COPYRIGHT: (C)2004,JPO |
