Blanket cylinder for offset presses

摘要

A blanket cylinder has a rotational axis and a concave surface, concentric to the axis and extending over a printing width of the cylinder, for receiving a flat rubber blanket made of elastically deformable material. The cylinder has a recess concentric to the axis, extending over the printing width, and a film fitted in the recess The film has an outside surface which forms the concave surface of the blanket cylinder.