Patent ID: 6823787
Filing Date: 2004-11-30
Classification: B41F,B41N

Abstract:
A rotary printing form with an expandable layer made of compressible material, which is attached to a core cylinder before being inserting into a sleeve,wherein the expandable layer has separate recessed depressions on at least one of its outer circumferential surface and its inner circumferential surface, and wherein when the core cylinder with the expandable layer is inserted into the sleeve, an initial section of the depressions stretches in an axial direction on the expandable layer, and a subsequent section of the depressions stretches in a radial direction over the expandable layer, whereby a part of the material of the expandable layer can be displaced in the depressions and at least a part of the depressions provides channels between the expandable layer and the sleeve when the sleeve is attached to the core cylinder and the expandable layer.