GRID OF ROUND GRID-TYPE PAPERMAKING MACHINE FOR MANUFACTURE OF FORGERY PROTECTED PAPER, METHOD FOR MANUFACTURE OF FORGERY PROTECTED PAPER, AND FORGERY PROTECTED PAPER

FIELD: production of paper for banknotes, securities, identity certificates or other protected printed products. ^ SUBSTANCE: grid has filigree members fixed on grid and designed for local reducing of paper water loss for producing of filigree watermark on paper. Filigree members are made in the for...

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Hauptverfasser:	KUROCHKIN ALEKSANDR VASIL'EVICH, CHEGLAKOV ANDREJ VALER'EVICH, TARGONSKIJ VADIM GENRIKHOVICH, MOCHALOV IGOR' ALEKSANDROVICH, TRACHUK ARKADIJ VLADIMIROVICH, SOLDATCHENKOV VIKTOR SERGEEVICH, STRJAPUSHKIN PETR ALEKSANDROVICH, PISAREV ALEKSANDR GEORGIEVICH, VJAZALOV SERGEJ JUR'EVICH, METEL'SKIJ EVGENIJ MIKHAJLOVICH, PAVLOV VLADIMIR VASIL'EVICH, TURKINA ELENA SAMUILOVNA, CHERNYSHOV SERGEJ IVANOVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	COLOUR PRINTING LINING MACHINES METHODS OF PRODUCING PAPER THEREON PAPER-MAKING PAPER-MAKING MACHINES PERFORMING OPERATIONS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PRODUCTION OF CELLULOSE STAMPS TEXTILES TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	FIELD: production of paper for banknotes, securities, identity certificates or other protected printed products. ^ SUBSTANCE: grid has filigree members fixed on grid and designed for local reducing of paper water loss for producing of filigree watermark on paper. Filigree members are made in the form of various figures, patterns, or text produced by shaped cutting from sheet material. There are through apertures and/or slots provided in body of filigree member, said apertures having cross size below 500 micron and being designed for creating zones with higher water loss. Method involves forming paper web on grid of round grid-type papermaking machine; dehydrating during pressing of paper web; forming paper on grid in order to produce filigree watermark having additional picture provided on the background of filigree watermark and having higher optical density as compared to optical density of filigree watermark. ^ EFFECT: increased degree of protecting paper from forgery. ^ 4 cl, 3 dwg