Abstract: The present invention relates to an elastic and compressible printing blanket element.This element essentially comprises a lithographic or printing layer (1), a hard layer of elastomer (2), a layer of cellular rubber (3), a layer of fabric (4) and another layer (5) of cellular rubber forming a base layer and the modulus of elasticity in compression of which is identical with or smaller than the modulus of elasticity of the layer (3).This printing element or blanket is applicable in any types of offset printing machines.

Abstract: A damping device for reducing vibration, particularly cylinder bounce in rotating cylinders, such as printing cylinders. The damping device is a multilayered insert of elastomeric and rigid materials. The layers are preferably laminated together and more preferably the elastomeric and rigid layers are alternated throughout the damping device. The insert is located in a housing on the cylinder so as to be flush with the cylinder's outer surface. The damping device may have variable damping abilities formed by the selection of materials, location of materials and/or the use of filled orifices of different damping material in the inserts.