Method of producing support for planographic printing plate

Details Method of producing support for planographic printing plate Method of producing support for planographic printing plate

1994-03-08

1995-10-31

Simmons, David A.

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148695, 148696, 148437, 164476, 164477, C22F 104

Patent

active

054626145

ABSTRACT:
A method of producing a support for a planographic printing plate, which reduces the scattering in the material of the aluminum support, improves the yield of the electrolytic surface graining treatment, and is able to produce lithographic printing plates having superior surface graining aptitude. Aluminum material with a width of 1000 mm and a thickness of 6 mm is formed in the continuous casting twin-roller thin plate device. It is then cold rolled to a plate thickness of 3 mm, and after conducting annealing at 400.degree. C., cold rolling (including correction) is further conducted to bring it to 0.3 mm and form the samples. The temperature distribution of the molten metal at the outlet of the molten metal supply nozzle is kept within a predetermined range.

REFERENCES:
patent: 5078805 (1992-01-01), Uesugi et al.

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