Process for manufacturing lithographic printing plate support

Details Process for manufacturing lithographic printing plate support Process for manufacturing lithographic printing plate support

1997-01-30

1999-02-23

Eley, Timothy V.

Ventilation

Chimney or stack

Chimneytop or stacktop structure

451 59, 205214, 205662, B24B 100, C25D 544

Patent

active

058737715

ABSTRACT:
A process for manufacturing a lithographic printing plate support made of aluminum or an aluminum alloy, in which the surface of the support is mechanically roughened by graining it with a brush comprising bristles which have a bending elastic modulus of 10,000 to 40,000 kg/cm.sup.2 and a nerve of 500 g or less per bristle, whereby generation of defective products due to defects such as scratching which aluminum itself has can be prevented and a lithographic printing plate support having scumming reduction even on squeezing water out can be provided.

REFERENCES:
patent: 5432046 (1995-07-01), Wanat et al.
patent: 5651871 (1997-07-01), Fromson et al.
J. Brandrup et al., "Polymer Handbook / Chapter V"; 1989; p. 30; table IIA; p. 31; table IIB.

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