Global Patent Index - EP 3411525 B2

EP 3411525 B2 20230816 - METHOD AND DEVICE FOR PRODUCING A SECURITY PAPER HAVING TWO WINDOW SECURITY ELEMENTS

Title (en)

METHOD AND DEVICE FOR PRODUCING A SECURITY PAPER HAVING TWO WINDOW SECURITY ELEMENTS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN EINES SICHERHEITSPAPIERS MIT ZWEI FENSTERSICHERHEITSELEMENTEN

Title (fr)

PROCÉDÉ ET DISPOSITIF POUR FABRIQUER UN PAPIER DE SÉCURITÉ POURVU DE DEUX ÉLÉMENTS DE SÉCURITÉ FENÊTRÉS

Publication

EP 3411525 B2 20230816 (DE)

Application

EP 17702520 A 20170126

Priority

  • DE 102016001107 A 20160202
  • EP 2017000095 W 20170126

Abstract (en)

[origin: WO2017133832A1] The invention relates to a device (10) for producing a security paper having at least two endless visible window security elements on opposite sides of the security paper, comprising a first paper layer production device (12) for forming a first paper web (20) and for introducing a first endless security element (22) as a window security element into the first paper web (20) during the formation of sheets, a second paper layer production device (14) for producing a second paper web (30), a take-off belt (16) for merging the second paper web (30) with and fixedly joining the second paper web to the first paper web (20), an apparatus for feeding a second endless security element (32) between the first and second paper webs as the paper webs (20, 30) are merged, and a suction device (50) for removing paper fibers from the second paper web (30) in the yet moist state. The invention further relates to an associated method and to a corresponding multi-layer security paper and document of value.

IPC 8 full level

D21F 11/00 (2006.01); D21F 11/08 (2006.01); D21H 21/40 (2006.01); D21H 27/30 (2006.01)

CPC (source: EP RU)

D21F 11/00 (2013.01 - RU); D21F 11/008 (2013.01 - EP); D21F 11/08 (2013.01 - EP); D21H 21/40 (2013.01 - EP); D21H 27/30 (2013.01 - EP)

Citation (opposition)

Opponent :

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)

DE 102016001107 A1 20170803; EP 3411525 A1 20181212; EP 3411525 B1 20191204; EP 3411525 B2 20230816; ES 2764171 T3 20200602; ES 2764171 T5 20240214; RU 2712313 C1 20200128; WO 2017133832 A1 20170810

DOCDB simple family (application)

DE 102016001107 A 20160202; EP 17702520 A 20170126; EP 2017000095 W 20170126; ES 17702520 T 20170126; RU 2018130826 A 20170126