Process for the preparation of an aluminum base for offset print

Details Process for the preparation of an aluminum base for offset print Process for the preparation of an aluminum base for offset print

1978-10-23

1980-09-02

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 627, 148 115A, 148 315, 430275, 72365, 430302, C23F 706

Patent

active

042204844

ABSTRACT:
A process for the preparation of an improved base for offset printing plates comprising superimposing together two prerolled aluminum ribbons with an individual thickness of 0.12 to 0.5 mm, rolling the said superimposed ribbons to an individual ribbon thickness of 0.08 to 0.22 mm whereby the mutual contact surfaces have an uniform surface roughness, separating the two ribbons and forming a stable aluminum oxide layer on the uniformly roughened surfaces which have improved properties when used as a base for offset printing plates.

REFERENCES:
patent: 2882153 (1959-04-01), Cohn
patent: 2882154 (1959-04-01), Cohn
patent: 3577920 (1971-05-01), London et al.
patent: 3891516 (1975-06-01), Chu

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