D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 25/06 (2006.01) B23P 15/00 (2006.01) B44B 5/00 (2006.01)
Patent
CA 2357241
In a method and an apparatus for the production of a cylindrical embossing sheet that is to be fixed on a rotating clamping cylinder for the manufacture of continuous webs having surface structures, such as holograms, cine- grams, exelgrams, for safety and reliability engineering and decoration purposes, it is provided that the plate-like starting material is bent around an auxiliary implement in particular of cylindrical shape, the diameter of which corresponds approximately to the diameter of the clamping cylinder, with the plate-like starting material being prepared such that, when it is placed around the auxiliary implement, the longitudinal edges butt against each other by a flush joint, and that the plate-like material is fixed in this position, and that the longitudinal edges are then welded together without any gaps by means of a laser.
Hueck Folien Gmbh & Co. Kg
Marks & Clerk
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