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1. WO2000039391 - IMPROVEMENTS IN MAKING PAPER

Publication Number WO/2000/039391
Publication Date 06.07.2000
International Application No. PCT/GB1999/004257
International Filing Date 16.12.1999
Chapter 2 Demand Filed 27.04.2000
IPC
D21F 1/44 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
1Wet end of machines for making continuous webs of paper
44Watermarking devices
D21H 21/42 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties
14characterised by function or properties in or on the paper
40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
42Ribbons or strips
G06K 19/02 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
02characterised by the selection of materials, e.g. to avoid wear during transport through the machine
CPC
D21F 1/44
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
1Wet end of machines for making continuous webs of paper
44Watermarking devices
D21H 21/42
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
21Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
14characterised by function or properties in or on the paper
40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
42Ribbons or strips
G06K 19/02
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
02characterised by the selection of materials, e.g. to avoid wear during transport through the machine
G06K 19/022
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
02characterised by the selection of materials, e.g. to avoid wear during transport through the machine
022Processes or apparatus therefor
G06K 19/07718
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07718the record carrier being manufactured in a continuous process, e.g. using endless rolls
Applicants
  • DE LA RUE INTERNATIONAL LIMITED [GB/GB]; De La Rue House Jays Close Basingstoke Hampshire RG22 4BS, GB (AllExceptUS)
  • ISHERWOOD, Roland [GB/GB]; GB (UsOnly)
  • RIDYARD, Stephen, David [GB/GB]; GB (UsOnly)
Inventors
  • ISHERWOOD, Roland; GB
  • RIDYARD, Stephen, David; GB
Agents
  • BOULT WADE TENNANT; Verulam Gardens 70 Gray's Inn Road London WC1X 8BT, GB
Priority Data
9828770.929.12.1998GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS IN MAKING PAPER
(FR) AMELIORATIONS APPORTEES A LA FABRICATION DE PAPIER
Abstract
(EN)
This invention is directed to improvements in paper incorporating an elongate impermeable element, to a method of making such paper and to documents made therefrom. The invention therefore comprises a method of making single ply paper having an elongate impermeable strip at least partially embedded therein, comprising the steps of blinding one or more selected areas of a porous support surface, depositing a first layer of paper fibres onto the porous support surface around the blinded areas, bringing the strip to lie in contact with the blinded areas of the support surface such that at least edges of the strip over lie the deposited fibres, and depositing a further layer of paper fibres over the first layer and the impermeable strip to securely embed the edges of the strip within the paper, said blinded areas being impermeable to substantially prevent the deposition of fibres thereon before the security element is laid thereover and to thereby form a plurality of discrete translucent or transparent windows in a first surface of the paper in which regions of one side of the strip are exposed, wherein substantially no paper fibres are deposited along on an opposite side of the length of the strip in a region between the edges to thereby expose a continuous area of the strip at a second surface of the paper.
(FR)
Cette invention, qui a trait à des améliorations apportées à du papier renfermant un élément imperméable de forme allongée, concerne également un procédé de fabrication de ce papier ainsi que les documents ainsi obtenus. Ce procédé de fabrication d'une feuille de papier pli unique dans laquelle est noyée, au moins en partie, une bande imperméable allongée, consiste à boucher une ou plusieurs zones choisies d'une surface de support poreuse, à déposer une première couche de fibres à papier autour des zones obturées, à amener la bande au contact de ces zones obturées de manière qu'au moins les bords de la bande soient sus-jacents aux fibres déjà déposées et à déposer une autre couche de fibres à papier sur la première couche ainsi que sur la bande imperméable de façon à immobiliser et à noyer les bords de la bande dans le papier. Les zones obturées sont imperméables et ce, de façon à empêcher sensiblement tout dépôt de fibres sur ces zones avant que l'élément de sécurité ne soit mis en place et, partant, de former plusieurs fenêtres distinctes translucides ou transparentes dans une première surface de papier dans les régions où un coté de la bande est à découvert. Il n'y a quasiment pas de dépôt de fibres à papier le long du coté opposé de la longueur de la bande dans un secteur se trouvant entre les bords et, de ce fait, une zone continue de la bande se trouve à découvert au niveau de la seconde surface du papier.
Also published as
ININ/PCT/2001/00766/MUM
UZ20010649
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