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AssigneeToray Industries, Inc.
InventorsAkihiro IIHARA, Yasunori KUSE
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Disclosed is a directly imageable waterless planographic printing plate precursor comprising a primer layer, a heat sensitive layer and a silicone rubber layer on a substrate in this order, wherein, within a 750 μm-wide region of the primer layer in the cross-section, the sum of the total area of portions protruding from a reference height of the primer layer and the total area of portions recessing from a reference height of the primer layer is 0 to 60 μm2. The present invention provides a directly drawn waterless planographic printing plate precursor capable of obtaining a waterless planographic printing plate having satisfactory image reproducibility and printing durability in large-sized plates and little printing unevenness.
A directly imageable waterless planographic printing plate precursor comprising a primer layer, a heat sensitive layer and a silicone rubber layer on a substrate in this order, wherein, within a 750 μm-wide region of the primer layer in the cross-section, the sum of the total area of portions protruding from a reference height of the primer layer and the total area of portions recessing from a reference height of the primer layer is 0 to 60 μm2.
A directly imageable waterless planographic printing plate precursor comprising a primer layer, a heat sensitive layer and a silicone rubber layer on a substrate in this order, wherein a maximum peak height on the surface of the primer layer is 0.5 μm or less.
Dependencies are inferred from the claim text.