Patent ID: 9643346
Date: 2017-05-09
CPC Classifications: B29C,G03F

Claim:
1. A device for producing substantially seamless, circumferentially closed flexible embossing or printing tape having a micro or nano scale surface structure, the device comprising: a multi-part housing comprising a side wall delimiting a radially external surface of an annular mould space, a bottom wall and a lid wall delimiting the respective face-ends of the annular space; a core, delimiting a radially internal surface of the annular space; an inlet for introducing a free-flow material; and a vent for ventilating the annular space; wherein the side wall comprises multiple parts with a plurality of outwardly displaceable side elements configured for outwardly radial displacement to enable the annular space to be opened in use; and wherein at least one of the radially internal or external surfaces of the annular space includes a texture surface defining a micro or nano scale surface structure corresponding to the micro or nano scale surface structure to be formed on a surface of the circumferentially closed flexible embossing or printing tape.