Patent ID: 6634288
Filing Date: 2003-10-21
Classification: B41D,B41K

Abstract:
A stamp unit comprising:a stamp member; a support member that supports the stamp member; and a fixing member that fixes the stamp member to the support member, the stamp member comprising a porous resin having a surface, and a film adhered to the surface of the porous resin for protecting the surface, the film being separable from the porous resin without damaging the surface of the porous resin, the film being adhered to the surface of the porous resin with peeling force of 0.001 kgf/cm2 to 0.75 kgf/cm2, the film being adhered to the surface of the porous resin by an acrylic adhesive, the surface of the porous resin being formed with ink-non-permeable portions and ink-permeable portions by one of flash light stamp making operations, thermal head stamp making operations, and thermal press stamp making operations, the ink-non-permeable portion being formed deeper than the ink-permeable portions, the fixing member fixing the stamp member to the support member by pressing a portion of the ink-non-permeable portions formed to an edge portion of the surface of the porous resin, the fixing member including a pressing member that presses the portion of the ink-non-permeable portions, the pressing member defining an opening through which the ink-permeable portions of the porous resin protrude outward, the fixing member further including a cylindrical cap having an interior surface formed with at least two protrusions, and the support member is formed with at least two engaging portions each for engaging respective one of the at least two protrusions of the cylindrical cap, the support member being fitted interior of the cylindrical cap.