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US 2012/0055360 A1Published application
Relief printing plate, plate-making method for the relief printing plate and plate-making apparatus for the relief printing plate
AssigneeFUJIFILM Corporation
InventorsMitsuru Mushano, Masashi Norimatsu, Shuichi Otsuka
Life of this patent
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Abstract
In a relief printing plate according to an aspect of the present invention, the relief can be formed to have resistance to pressure applied to the apex thereof thanks to the depth (d) and the ridge tilt angle (x). In particular, the resistance to pressure against a relief serving as a highlight halftone dot can be improved to prevent the relief from falling over by the pressure applied to the apex of the relief. Thereby, the relief serving as a highlight halftone dot can be made not to be dipped in a cell of the ink roller (e.g., anilox roller).
Claims14
A relief printing plate comprising:
- a plate material;
- and
- a frustoconical relief which is formed on a surface of the plate material and serves as a halftone dot, and to an apex of which ink is transferred by an ink roller, wherein
- the relief is formed in such a manner that each relief is different in depth and ridge tilt angle depending on screened binary image data and multi-value image data representing a tone of each halftone dot.
1 more element
Dependencies are inferred from the claim text.