B - Operations – Transporting – 44 – F
Patent
B - Operations, Transporting
44
F
B44F 9/12 (2006.01) B21D 53/00 (2006.01) B24C 1/04 (2006.01) B44C 1/22 (2006.01)
Patent
CA 2273773
The invention concerns a method for processing a metal surface. To form an embossing surface, the metal surface is first fitted with a coarsely cratered structure. Then the surface is fitted in a first particle application stage or by etching or the like with a finely cratered structure of a first depth of roughness. Then the surface fitted with the finely cratered structure of the first depth of roughness is coated within the vicinity of the troughs of the coarsely cratered structure with a protective coating and thereafter the peaks of the coarsely cratered structure projecting above the protective coating are fitted by particle jets or etching with a finely cratered structure of a second depth of roughness and lastly the protective layer is removed. An embossing surface processed by the method of the invention offers various appearances in an embossed foil. If the coarsely cratered structure is a copy of the surface of natural leather, it is possible to substantially imitate the appearance of such leather provided the depth of roughness of the embossing surface within the vicinity of the peaks be larger than within the vicinity of the troughs, the reverse condition then being the case for the embossed product. The peaks are glossier than the troughs and thus impart the appearance of natural leather.
Benecke-Kaliko Ag
Dennison Associates
LandOfFree
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