EP 2929084 B1 20170222 - APPARATUS FOR MANUFACTURING A MULTILAYERED SECURITY PAPER WITH OPENINGS
Title (en)
APPARATUS FOR MANUFACTURING A MULTILAYERED SECURITY PAPER WITH OPENINGS
Title (de)
VORRICHTUNG ZUR HERSTELLUNG EINES MEHRLAGIGEN SICHERHEITSPAPIERS MIT AUSSPARUNGEN
Title (fr)
APPAREIL POUR PRODUIRE UN PAPIER DE SECURITÉ MULTICOUCHE AVEC DES OUVERTURES
Publication
Application
Priority
- DE 102012024014 A 20121207
- EP 2013003636 W 20131202
Abstract (en)
[origin: WO2014086476A1] The invention relates to a device for producing a security paper, wherein a first wet end (1) of a papermaking machine forms a first paper web and optionally provides it with individualizing features, such as an opening, an endless security element or a watermark, and a second wet end (2) of a papermaking machine forms a second paper web. A suction device removes paper fibres from the first and/or second paper web in the still wet state at at least one location, preferably in register with the optionally present individualizing features of the first paper web. Subsequently, the second paper web is combined with and connected fixedly to the first paper web via a pick-up conveyor (8). According to the invention, the suction device has an endless belt (9) made from a wire-like fabric or with a closed surface, wherein the endless belt has at least one cut-out in register with the at least one location, at which the paper fibres are to be removed from the paper web in the still wet state. The endless belt is tensioned on at least two positionally adjustable guide rolls (3). A suction roll (4) or a suction box (7) is arranged on that side of the endless belt which lies opposite the paper web, wherein the suction roll or the suction box generates a vacuum and extracts the paper fibres through the cut-outs of the belt.
IPC 8 full level
D21F 1/44 (2006.01); D21F 11/00 (2006.01); D21F 11/08 (2006.01)
CPC (source: EP)
D21F 1/44 (2013.01); D21F 11/008 (2013.01); D21F 11/08 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014086476 A1 20140612; DE 102012024014 A1 20140626; EP 2929084 A1 20151014; EP 2929084 B1 20170222; ES 2621003 T3 20170630; PL 2929084 T3 20170831
DOCDB simple family (application)
EP 2013003636 W 20131202; DE 102012024014 A 20121207; EP 13799485 A 20131202; ES 13799485 T 20131202; PL 13799485 T 20131202