Support for lithographic printing plate and presensitized plate

Details Support for lithographic printing plate and presensitized plate Support for lithographic printing plate and presensitized plate

2005-01-18

2005-01-18

Colilla, Daniel J. (Department: 2854)

Printing

Planographic

Lithographic printing plates

C101S455000, C205S153000

Reexamination Certificate

active

06843175

ABSTRACT:
A support for a lithographic printing plate, wherein scum resistance is improved when processed into a lithographic printing plate by performing treatment for water wettablity and, in addition, press life is excellent. A support for a lithographic printing plate, which is obtained by performing at least anodizing treatment and silicate treatment on an aluminum plate, wherein a ratio of the number of atoms of alkali-earth metal and silicon existing on a surface thereof is 0.1 to 0.95.

REFERENCES:
patent: 2714066 (1955-07-01), Jewett et al.
patent: 3181461 (1965-05-01), Fromson
patent: 4492616 (1985-01-01), Pliefke et al.
patent: 5480762 (1996-01-01), Toyama et al.
patent: 5556531 (1996-09-01), Wiedemann
patent: 6105500 (2000-08-01), Bhambra et al.
patent: 6238839 (2001-05-01), Tomita et al.

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