EP 1975311 A1 20081001 - ANTI-FALSIFICATION WATERMARK PAPER AND METHOD OF MAKING SAME
Title (en)
ANTI-FALSIFICATION WATERMARK PAPER AND METHOD OF MAKING SAME
Title (de)
PAPIER MIT EINEM FÄLSCHUNGSSICHEREN WASSERZEICHEN UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
PAPIER EN FILIGRANE ANTIFALSIFICATION ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- CN 2006003191 W 20061128
- CN 200510111320 A 20051209
Abstract (en)
An anti-falsification watermark paper, a method of making the same and the apparatus for performing the method is disclosed. The method comprises the following steps. The moist paper is predried after shaping step. The predried paper is pressed by a dandy roll or a plate which comprising concave, bulgy or scraggy patterns in part or in full to form watermarks. The moist paper is redried after the pressing step.
IPC 8 full level
B31F 1/07 (2006.01); D21F 1/44 (2006.01); D21F 1/46 (2006.01); D21F 11/00 (2006.01)
CPC (source: EP)
D21F 1/44 (2013.01); D21F 11/006 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1975311 A1 20081001; EP 1975311 A4 20120321; EP 1975311 B1 20170531; CN 1978786 A 20070613; CN 1978786 B 20120530; WO 2007065346 A1 20070614
DOCDB simple family (application)
EP 06828187 A 20061128; CN 200510111320 A 20051209; CN 2006003191 W 20061128