Planographic printing plate precursor, planographic printing plate precursor laminate, plate-making method for planographic printing plate, and planographic printing method
AssigneeFUJIFILM Corporation
InventorsShumpei WATANABE, Shuji SHIMANAKA
Life of this patent
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Abstract
Provided are a planographic printing plate precursor including an aluminum support, and an image recording layer and a protective layer which are provided on the aluminum support in this order, in which a thickness of the protective layer is 0.2 μm or greater, and Expression (1) is satisfied in a case where a Bekk smoothness of a surface of an outermost layer on a side opposite to a side where the image recording layer is provided is denoted by b seconds; a planographic printing plate precursor laminate; a plate-making method for a planographic printing plate; and a planographic printing method.
Claims20
A planographic printing plate precursor comprising in the following order, on an aluminum support:
- an image recording layer;
- and
- a protective layer,
- wherein a thickness of the protective layer is 0.2 μm or greater,
- in a case where a Bekk smoothness of a surface of an outermost layer on a side opposite to a side where the image recording layer is provided is denoted by b seconds, the following Expression (1) is satisfied:
- b≤1000 (1), and
- an arithmetic average height Sa of a surface of an outermost layer on a side where the image recording layer is provided is in a range of 0.1 μm to 20 μm.
A key plate precursor comprising:
- an aluminum support;
- a protective layer on the aluminum support;
- and
- a non-photosensitive layer between the aluminum support and the protective layer,
- wherein a thickness of the protective layer is 0.2 μm or greater, and in a case where a Bekk smoothness of a surface of an outermost layer on a side opposite to a side where the protective layer is provided is denoted by b seconds, the following Expression (1) is satisfied:
- b≤1000 (1).
Dependencies are inferred from the claim text.