Offset lithographic printing press including a gapless tubular p

Details Offset lithographic printing press including a gapless tubular p Offset lithographic printing press including a gapless tubular p

1994-11-21

1995-08-15

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101375, 101376, 428909, B41F 702

Patent

active

054409810

ABSTRACT:
A tubular printing blanket for a blanket cylinder in an offset printing press comprises a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The compressible layer comprises a first seamless tubular body of elastomeric material containing compressible microspheres. The inextensible layer comprises a second seamless tubular body of elastomeric material containing a tubular sublayer of circumferentially inextensible material. A seamless tubular printing layer over the inextensible layer has a continuous, gapless cylindrical printing surface. Methods of manufacturing the tubular printing blanket are also disclosed.

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