Printing blanket including a non-extensible backing layer and a relief area which may be mounted in a variety of lockup mechanisms
AssigneeDay International, Inc.
InventorRichard L. Czerner
Life of this patent
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Abstract
A printing blanket is provided which may include a printable surface ply, a compressible ply, one or more reinforcing fabric plies, and a non-extensible backing layer comprising a polymeric material. The printing blanket has first and seconds ends which are adapted to be inserted into the gap of a printing blanket cylinder, where each of the first and second ends may include a relief area formed by removing or molding a portion of the blanket or by removing or molding a portion of the non-extensible backing layer such that the blanket may be mounted in a wide variety of printing presses using a number of different lock-up mechanisms.
Claims21
A printing blanket mounted on a blanket cylinder, said blanket cylinder including a gap and a lockup mechanism within said gap;
- said printing blanket comprising at least a printable surface ply and a non-extensible backing layer comprising a polymeric material or a reinforcing material which has been impregnated with a polymeric material, said printing blanket having first and second ends inserted into said gap;
- wherein at least a portion of said blanket overlying said non-extensible backing layer and spaced inwardly from at least one end of said blanket has been removed or molded to form at least one relief area which extends across substantially the width of the blanket and which is defined by blanket walls on each side;
- wherein said at least one relief area is positioned in said gap immediately above said lock-up mechanism;
- and wherein said at least one relief area is adapted to permit the blanket to be fitted into said lockup mechanism without a reduction in gauge.
Dependencies are inferred from the claim text.