Aluminum alloy support for lithographic printing plate

Details Aluminum alloy support for lithographic printing plate Aluminum alloy support for lithographic printing plate

1985-06-18

1990-07-03

Crowder, Clifford D.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

148437, 101459, B41N 108

Patent

active

049390449

ABSTRACT:
An aluminum alloy support for a lithographic printing plate, comprising a cold rolled plate of aluminum alloy comprising, in % by weight:
98.0% or more Al;
Fe in an amount of from 0.15 to 1.2% as an alloying element; and
impurities, each of which is present in an amount of from 0.0% but less than or equal to 0.15%, wherein the cold rolled plate has a distribution of Al--Fe and Al--Fe--Si based intermetallic compounds formed from the alloy, having grain sizes of greater than 0 microns but less than or equal to 3 microns, which are positioned directly under an outer surface of the cold rolled plate and wherein the surface of the cold rolled plate is roughened by etching or electrochemical etching and anodically oxidized.

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patent: 3795590 (1974-03-01), Patrie
patent: 3798137 (1974-03-01), Kampert
patent: 3989548 (1976-11-01), Morris
patent: 4092925 (1978-06-01), Fromson

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