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CYLINDRICAL PRINTING PLATE, CYLINDRICAL PRINTING MASTER PLATE, METHOD FOR MANUFACTURING CYLINDRICAL PRINTING MASTER PLATE, AND METHOD FOR MANUFACTURING CYLINDRICAL PRINTING PLATE
CYLINDRICAL PRINTING PLATE, CYLINDRICAL PRINTING MASTER PLATE, METHOD FOR MANUFACTURING CYLINDRICAL PRINTING MASTER PLATE, AND METHOD FOR MANUFACTURING CYLINDRICAL PRINTING PLATE
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机译:圆柱印刷板,圆柱印刷母板,圆柱印刷母板的制造方法以及圆柱印刷板的制造方法
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摘要
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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