Title:
平版印刷版原版、平版印刷版の製造方法、印刷方法およびアルミニウム支持体の製造方法
Document Type and Number:
Japanese Patent JP7113732
Kind Code:
B2
Abstract:
The present invention aims at providing a lithographic printing plate precursor, a lithographic printing plate manufacturing method, a printing method and an aluminum support manufacturing method that enable the resulting lithographic printing plate to have a long tiny dot press life. The lithographic printing plate precursor of the invention is a lithographic printing plate precursor (10) having an aluminum support (12a) and an image recording layer (16) disposed above the aluminum support. When measured over a 400 µm x 400 µm region of a surface of the aluminum support on the image recording layer side using a three-dimensional non-contact roughness tester, pits with a depth from centerline of at least 0.70 µm are present at a density of at least 3,000 pits/mm; and a surface area ratio ΔS is not less than 35%, the surface area ratio ΔS being determined using an actual area Sobtained, through three-point approximation, from three-dimensional data acquired by measurement at 512 x 512 points in 25 µm square of the surface of the aluminum support on the image recording layer side by means of an atomic force microscope and a geometrically measured area S.
Inventors:
Nakamura Ryo
Matsuura Mutsumi
Hirokawa Tsuyoshi
Matsuura Mutsumi
Hirokawa Tsuyoshi
Application Number:
JP2018232493A
Publication Date:
August 05, 2022
Filing Date:
December 12, 2018
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
B41N3/03; B41N1/14; C25D11/04; C25D11/08; C25D11/16; C25D11/18; C25D11/24; G03F7/00; G03F7/004; G03F7/029; G03F7/09; G03F7/11
Domestic Patent References:
| JP2005262530A | ||||
| JP2012192724A | ||||
| JP2012071435A |
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mihashi
Fumio Mihashi