C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
101/118, 204/190
C25D 1/04 (2006.01) B41F 21/00 (2006.01) B41F 22/00 (2006.01) B41N 7/00 (2006.01) B65H 5/00 (2006.01) C25D 1/10 (2006.01)
Patent
CA 2008575
ABSTRACT OF THE DISCLOSURE The inventor relates to a metal foil having a textured surface suitable for use with sheet guide cylinders and or drums on rotary printing machines. The textured surface of the metal foil may be varied for the particular function to be carried out while the textured surface can be accurately reproduced. The metal foil is produced by a galvanoplastic moulding process with one surface of the foil textured and the opposite surface flat. The textured surface of the foil corresponds to an upper surface of the master pattern which has been roughened by a jet treatment and located with a levelling galvano-layer in order to eliminate undercuts.
Beck Hans-Jurgen
Wirz Arno
Heidelberger Druckmaschinen Aktiengesellschaft
Johnson Douglas S. Q.c.
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