Patent ID: 8268544
Filing Date: 2012-09-18
Classification: B29C,B41F,B82Y,G03F

Abstract:
1. Stamp for patterning onto a receiver according to a defined pattern (P), comprising a stamping surface of a resilient diaphragm which is planar at rest and on which said pattern is reproduced, the diaphragm being affixed to a rigid body along a peripheral edge of said diaphragm so that points of a middle part of the diaphragm are movable relative to the rigid body along a direction perpendicular to the stamping surface, the stamp being characterized in that the diaphragm is more flexible near the peripheral edge than in the middle part, wherein the diaphragm comprises several resilient layers stacked along the direction perpendicular to the stamping surface, the stamping surface is formed of the resilient layer having the highest hardness among said layers of the diaphragm, and the resilient layer with the highest hardness has a thickness which is comprised between 50 μm and 500 μm in at least an area of the stamping surface corresponding to the pattern (P).