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AssigneeToray Industries, Inc.
InventorsAkihiro Iihara, Yuta Shuto, Yutaka Ishida
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A directly imageable waterless planographic printing plate precursor includes at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order and has a high sensitivity not only immediately after the precursor production but also after the passage of time. In the directly imageable waterless planographic printing plate precursor, the heat sensitive layer contains liquid bubbles filled with a liquid with a boiling point in the range of 210 to 270° C. A production method comprises applying a solution of a heat sensitive layer composition containing a solvent with a solubility parameter of 17.0 (MPa)1/2 or less and a boiling point in the range of 210 to 270° C. and a solvent with a solubility parameter of more than 17.0 (MPa)1/2 over a substrate or a substrate coated with a resin layer, drying the solution of a heat sensitive layer composition to form a heat sensitive layer, and applying a silicone rubber layer composition over the heat sensitive layer to form a silicone rubber layer.
A directly imageable waterless planographic printing plate precursor comprising at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order, wherein said heat sensitive layer contains liquid bubbles incorporating a liquid with a boiling point in the range of 210 to 270° C.
A method of producing a directly imageable waterless planographic printing plate precursor comprising at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order, said method comprising:
A method of producing a directly imageable waterless planographic printing plate precursor comprising at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order, said method comprising:
Dependencies are inferred from the claim text.