EP 2550395 B1 20171025 - SHEET HAVING A MULTI-TONE WATERMARK, METHOD FOR MANUFACTURING A PART FOR FORMING A MULTI-TONE WATERMARK, PART FOR FORMING A MULTI-TONE WATERMARK, AND USE OF SAID PART FOR FORMING A MULTI-TONE WATERMARK
Title (en)
SHEET HAVING A MULTI-TONE WATERMARK, METHOD FOR MANUFACTURING A PART FOR FORMING A MULTI-TONE WATERMARK, PART FOR FORMING A MULTI-TONE WATERMARK, AND USE OF SAID PART FOR FORMING A MULTI-TONE WATERMARK
Title (de)
BOGEN MIT EINEM MEHRSTUFIGEN WASSERZEICHEN, VERFAHREN ZUR HERSTELLUNG EINES TEILS ZUR BILDUNG EINES MEHRSTUFIGEN WASSERZEICHENS, TEIL ZUR BILDUNG EINES MEHRSTUFIGEN WASSERZEICHENS UND VERWENDUNG DES TEILS ZUR BILDUNG EINES MEHRSTUFIGEN WASSERZEICHENS
Title (fr)
FEUILLE COMPRENANT UN FILIGRANE MULTITON, PROCEDE DE FABRICATION D'UNE PIECE POUR LA FORMATION D'UN FILIGRANE MULTITON, PIECE POUR LA FORMATION D'UN FILIGRANE MULTITON ET UTILISATION DE LADITE PIECE POUR LA FORMATION D'UN FILIGRANE MULTITON
Publication
Application
Priority
- FR 1001164 A 20100324
- IB 2011051226 W 20110323
Abstract (en)
[origin: WO2011117828A1] The present invention relates to the field of paper and relates to a sheet including a high-definition high-contrast multitone watermark having areas of pronounced brightness. Such watermark is particularly obtained by means of a part (4) including a surface (5) having a raised area and perforations (6). The perforations (6) are such that making the cross-section thereof, at a given distance from the draining surface, directly depends on said distance. The present invention also relates to the method for manufacturing said part that is used for forming one such watermark, to the part itself, and to the use of said part when forming a watermark.
IPC 8 full level
D21F 1/44 (2006.01)
CPC (source: EP US)
D21F 1/44 (2013.01 - EP US); D21F 11/006 (2013.01 - US)
Citation (examination)
WO 2009141134 A1 20091126 - GROSSMANN HANS [DE]
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 2011117828 A1 20110929; BR 112012023906 A2 20160802; BR 112012023906 B1 20201110; CN 102971461 A 20130313; CN 102971461 B 20151014; EP 2550395 A1 20130130; EP 2550395 B1 20171025; ES 2655987 T3 20180222; FR 2957943 A1 20110930; FR 2957943 B1 20211105; HU E036175 T2 20180628; PL 2550395 T3 20180430; RU 2012144579 A 20140427; RU 2567357 C2 20151110; SI 2550395 T1 20180228; US 2013255896 A1 20131003; US 8840756 B2 20140923
DOCDB simple family (application)
IB 2011051226 W 20110323; BR 112012023906 A 20110323; CN 201180024857 A 20110323; EP 11717023 A 20110323; ES 11717023 T 20110323; FR 1001164 A 20100324; HU E11717023 A 20110323; PL 11717023 T 20110323; RU 2012144579 A 20110323; SI 201131395 T 20110323; US 201213625472 A 20120924