Invention Application
- Patent Title: CYLINDRICAL PRINTING PLATE, CYLINDRICAL PRINTING PLATE PRECURSOR, METHOD FOR MANUFACTURING CYLINDRICAL PRINTING PLATE PRECURSOR, AND METHOD FOR MANUFACTURING CYLINDRICAL PRINTING PLATE
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Application No.: US16045892Application Date: 2018-07-26
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Publication No.: US20180339536A1Publication Date: 2018-11-29
- Inventor: Masato SHIRAKAWA , Yusuke NAMBA
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2016-017784 20160202
- Main IPC: B41N1/22
- IPC: B41N1/22 ; B41C1/02 ; B41C1/18

Abstract:
Provided is to provide a cylindrical printing plate with which printing of excellent solid density and high halftone dot quality is made possible, and further print medium followability and printing durability are excellent, a cylindrical printing plate precursor, a method for manufacturing a cylindrical printing plate precursor, and a method for manufacturing a cylindrical printing plate. A cylindrical printing plate includes a relief layer having a first hard layer, a soft layer, and a second hard layer in this order from a printing surface side, in which a hardness K1 of the first hard layer is 10 MPa or more and less than 20 MPa, a ratio K1/K2 of the hardness K1 of the first hard layer with respect to a hardness K2 of the soft layer is 2.7 or more, a ratio K3/K2 of a hardness K3 of the second hard layer with respect to the hardness K2 of the soft layer is 1.2 or more, a thickness of the first hard layer is 0.05 mm or more and 0.3 mm or less, and a thickness of the soft layer is 0.3 mm or more and 2.0 mm or less.
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