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AssigneeToray Industries, Inc.
InventorsAkihiro Iihara, Yasunori Kuse, Yuta Shuto, Satoshi Yoshida, Kazuki Goto
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The objective is to provide a direct drawing-type waterless lithographic printing original plate which is highly sensitive and is not susceptible to formation of blisters, namely a direct drawing-type waterless lithographic printing original plate which has a wide latitude. Provided is a direct drawing-type waterless lithographic printing original plate which has at least a heat-sensitive layer and a silicone rubber layer on a substrate in this order. The direct drawing-type waterless lithographic printing original plate is characterized in that the heat-sensitive layer contains non-photosensitive particles and the average particle diameter of the non-photosensitive particles is not less than ½ of the average film thickness of a portion of the heat-sensitive layer where the non-photosensitive particles are not present.
A directly imageable waterless lithographic printing plate precursor having at least a heat sensitive layer and a silicone rubber layer on a substrate in this order, in which the heat sensitive layer contains non-photosensitive particles, and the average particle size of the non-photosensitive particles is not smaller than ½ time the average layer thickness of the heat sensitive layer in the portion where the non-photosensitive particles are not present.
Dependencies are inferred from the claim text.