Aluminum support for lithographic printing plate

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

1991-01-28

1992-04-14

Zimmerman, John J.

Stock material or miscellaneous articles

Composite

Of metal

101459, B32B 1504, B41N 108

Patent

active

051047438

ABSTRACT:
An aluminum alloy substrate for a lithographic printing plate consisting essentially of an aluminum alloy plate containing 0.2 to 0.5% by weight of Si, 0.3 to 0.7% by weight of Fe, 0.004 to 0.02% by weight of Cu, 0.9 to 1.5% by weight of Mn, 0.05 to 0.3% by weight of Mg and 0.01 to 0.04% by weight of Ti and the balance of Al and impurities, in which the surface of said aluminum alloy plate is roughened electrolytically and anodized. The alluminum alloy substrate has high mechanical strength and can also rapidly print a large number of copies with less stain.

REFERENCES:
patent: 3717915 (1973-02-01), Teubler
patent: 4686083 (1987-08-01), Takizawa et al.
patent: 4861396 (1989-08-01), Matsuo et al.
patent: 4939044 (1990-07-01), Ohashi et al.

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