Offset printing having blanket cylinder with blanket having diff

Details Offset printing having blanket cylinder with blanket having diff Offset printing having blanket cylinder with blanket having diff

1999-03-30

2000-05-16

Hilten, John S.

Printing

Rolling contact machines

Rotary

101376, 428909, B41F 702

Patent

active

060621389

ABSTRACT:
In an offset printing apparatus, the offset blanket is configured to prevent the transfer of ink from the bare metal edges of the lithographic printing plates. These edges may also have burrs which would exacerbate the ink pick-up and transfer of the unwanted ink to the offset blanket and the paper. The offset blanket is shaved down or relieved in the areas juxtaposed to the edges of the printing plates so that the ink will not be transferred.

REFERENCES:
patent: 1428795 (1922-09-01), Mezger
patent: 1804139 (1931-05-01), Adsit et al.
patent: 3395638 (1968-08-01), Kirkus et al.
patent: 4589339 (1986-05-01), Fischer
patent: 5215013 (1993-06-01), Vrotacoe et al.
patent: 5507226 (1996-04-01), Burke et al.

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