WO2013178986A1 - A substrate for security documents - Google Patents

A substrate for security documents Download PDF

Info

Publication number
WO2013178986A1
WO2013178986A1 PCT/GB2013/051282 GB2013051282W WO2013178986A1 WO 2013178986 A1 WO2013178986 A1 WO 2013178986A1 GB 2013051282 W GB2013051282 W GB 2013051282W WO 2013178986 A1 WO2013178986 A1 WO 2013178986A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
microfibrillated cellulose
soil resistant
paper substrate
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2013/051282
Other languages
English (en)
French (fr)
Inventor
Rohan Ratnakumar
Paul Howland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De la Rue International Ltd
Original Assignee
De la Rue International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De la Rue International Ltd filed Critical De la Rue International Ltd
Priority to EP13723935.6A priority Critical patent/EP2855772B1/en
Priority to CN201380028188.4A priority patent/CN104350203A/zh
Priority to IN9839DEN2014 priority patent/IN2014DN09839A/en
Priority to BR112014029228A priority patent/BR112014029228A2/pt
Priority to RU2014153157A priority patent/RU2014153157A/ru
Priority to KR20147036327A priority patent/KR20150024346A/ko
Priority to US14/404,235 priority patent/US20150191036A1/en
Publication of WO2013178986A1 publication Critical patent/WO2013178986A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H21/00—Non-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
    • D21H21/14—Non-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 characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H21/00—Non-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
    • D21H21/14—Non-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 characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes

Definitions

  • the present invention provides a durable substrate for security documents such as banknotes, cheques,
  • the present invention relates to durable substrates that are resistant to the build-up of soil on their surfaces, thereby reducing the rate at which documents are out-sorted by sorting machines or otherwise rejected for further use as information
  • Security documents such as banknotes, identification documents and other such multi-use documents are subjected to regular handling and storage in places in which soil
  • Durable security documents are already known.
  • Banknotes in some countries, such as Australia and Canada are printed on polymeric substrates which have an enhanced lifespan over conventional paper-based substrates. Whilst these polymeric substrates offer improved physical durability, this comes with a number of disadvantages, such as increased initial manufacturing costs and the increased complexity in trying to incorporate certain types of security devices, which would be incorporated into paper-based substrates at the time of their manufacture, e.g. watermarks, embedded or windowed security elements etc.. Additionally polymer substrates have a polymer tactility, which means that such banknotes no longer have the traditional feel and sound of a banknote.
  • Soil-resistant traditional paper security substrates are also commercially available, such as the Platinum®- coated paper made by De La Rue (UK) , or the AST-coated paper from Crane & Co (USA) .
  • synthetic polymer- based soil-resistant coatings are applied to the surface of the substrate to size and seal it against the ingress of oils and dirt encountered in circulation.
  • MFC microfibrillated cellulose
  • MFC enhances the properties of a water vapour barrier of a dispersion coating made from colloidal particles of a polymer. This is described in WO-A-2011/056130. The addition of the MFC to the dispersion coating has been shown to improve the water holding capacity and reduces the
  • WO-A-2011/078770 describes the use of MFC in a layered arrangement to provide a paper or paperboard substrate having barrier properties against liquids, vapour and gases.
  • the paper or paperboard substrate has a first fibre based layer, a second layer comprising MFC and a third layer comprising a polymer.
  • the MFC layer is provided to increase the density of the fibre layer and to smooth the surface thereof, which in turn increases the smoothness and the adherability of the polymer layer which provides the known barrier to liquids/vapour. It has been found that the combination of the MFC and the polymer layers provides good oxygen barrier properties which are not provided by the use of the polymer coating by itself.
  • coatings are not ideal for use on security documents particularly as a coating for a security paper which is to be printed on as the time taken for typical security inks to dry (oil based lithographic and intaglio inks) will be slower than on paper where the ink can be absorbed into rough paper surface.
  • the present invention has arisen through the surprising discovery that, when used by itself with a paper substrate, and not in conjunction with a polymer layer, it advantageously provides an unexpected level of soil resistance.
  • the use of the MFC material in this manner enable the characteristics of the paper surface to be maintained which provides the improved soil resistance without significantly impacting on the ink drying
  • the invention lies in the use of a particular form of cellulose fibre known as microfibrillated cellulose (MFC) , which is incorporated into and/or applied to the surface of a paper substrate, to improve the strength of security documents, such as banknotes, made from the substrate and to reduce their uptake of soil due to day to day handling.
  • MFC microfibrillated cellulose
  • the invention therefore provides a soil resistant paper substrate made from a stock comprising a suspension of paper fibres and treated with microfibrillated cellulose such that the microfibrillated cellulose bridges pore spaces formed by and in between the paper fibres at at least a surface of the substrate to provide soil resistance.
  • microfibrillated cellulose may be added to the stock, and/or applied to the substrate prior to printing and/or after printing.
  • the invention further comprises a security paper formed from the aforementioned soil resistant paper comprising an overt security feature to which a transparent micro- fibrillated cellulose based soil resistant coating or varnish is applied.
  • the invention additionally comprises a security
  • the invention also comprises a method of manufacturing a soil resistant paper substrate comprising the steps of forming an intermediate paper substrate from a stock
  • the invention further comprises a method of manufacturing a soil resistant paper substrate comprising the step of adding microfibrillated cellulose to a stock comprising a suspension of paper fibres and forming the substrate such that the microfibrillated cellulose bridges pore spaces formed by and in between the paper fibres at at least a surface of the substrate to provide soil resistance.
  • microfibrillated cellulose has the advantage that it is inherently low cost compared to polymer coatings as it is produced from a common raw material, such as wood or cotton pulp, rather than by a complex chemical synthesis process based on petrochemicals.
  • MFC coatings of the current invention will not flow into the paper substrate when heated and therefore all of the MFC will be used to bridge the pore structure and therefore improve the soil resistance.
  • polymer coating on the other hand, a significant volume of the coating will flow into the paper structure and only fraction will
  • the MFC consisting predominantly of physically-modified cellulose, it undergoes the same biological degradation as the bulk cellulose of the
  • microfibrillated cellulose Methods for producing microfibrillated cellulose are described in, for example, GB-A-2066145, in which a liquid suspension of cellulose at high pressure is passed through an orifice to cause an explosive decompression of the suspension and the fibres contained therein. Unfortunately, the energy expenditure required to produce MFC's by
  • the MFC's of the present invention can be prepared from any source of cellulosic material, including wood pulp or preferably cotton fibres. Wood pulp contains 40-50% cellulose, while cotton fibres contain up to around 90% cellulose. The cellulose found in cotton fibre shows a higher degree of polymerisation in comparison to cellulose derived from other natural fibres and especially soft and hard wood pulps. The combination of higher degree of polymerisation and the higher cellulose content makes it generally harder for the micro fibrillation or homogenisation to easy generate MFC from cotton. Due to the process difficulties cotton would not be a natural choice of base material for generation of MFC.
  • the length of the fibres in the MFC may be up to 100 microns, and preferably 50 microns or less and is most preferably 10 microns or less.
  • the width of the fibres in the MFC may be in the range 1 to lOOnm, preferably 2 to 50nm, preferably 5 to 20nm and most preferably approximately 5nm.
  • the thickness of the fibres may lie in the range 2 to 50nm, preferably 5 to 20nm and is most preferably
  • MFC is used as a coating applied to the external surface of a paper substrate, to provide a substrate from which security documents, such as banknotes can be made, in order to increase soil resistance.
  • Traditionally used polymer-based coatings require a coat weight of approximately 2 grammes/m 2 (gsm) to provide a soil index of 15-30%.
  • gsm grammes/m 2
  • a similar level of soil resistance can be obtained by a significantly lower coat weight in the range of 0.1 to 5gsm, preferably 0.5 to 3gsm and is most preferably lgsm.
  • the soil index is defined as the ratio of the differences in the luminosities of uncoated and coated substrates, subjected to standard soiling procedures, expressed as a percentage.
  • FIRA Fluniture Industry
  • the MFC coated paper substrate of the present invention achieves an
  • microfibrillated cellulose with its chemically identical structure, has stronger interactions with, and is more efficient at bridging, the pores between the non-microfibrillated fibres of the
  • MFC which is also cellulose
  • the MFC will also have the ability to form hydrogen bonds, not only between the nanofibrils of the MFC but with the cellulose microfibrils of the paper fibres. It will therefore adhere well to the base paper fibres.
  • MFC can be applied to a paper substrate by any known coating method such as doctor blades, dip roll coating, gravure, flexography etc. with dip coating and gravure being preferred techniques.
  • the MFC is typically delivered to the substrate as a suspension of fibres, preferably in an aqueous medium, the suspension having a solids content of approximately 3% weight for weight (w/w) .
  • a particular advantage of using MFC as a coating on a secure paper substrate is that coatings produced from suspensions having a solids content in the range 0.1 to 30% weight for weight (w/w), and preferably in the range 2 to 15% weight for weight (w/w), are transparent and therefore do not affect the appearance of security features incorporated into the paper substrate such as watermarks or embedded or partially embedded security threads.
  • the MFC can be delivered to the substrate using a size press in line on a paper machine. In this case the MFC is mixed with water to obtain an aqueous formulation having a solids content ranging from about 1-30% dry weight, and more preferably 1-10% dry weight.
  • MFC is incorporated throughout the body of the paper substrate by mixing it with standard cotton fibre stock in the
  • the addition of 10% MFC to the bulk of a cotton fibre-based substrate affords a soil index according to the same test as described above of the order of 15%.
  • the stock is preferably formed by adding microfibrillated cellulose to the
  • the MFC is a suspension of fibres in an aqueous medium which preferably has a solids content of 0.01 to 1% w/w, and more preferably 0.05 to 0.5% w/w.
  • MFC is used as a post-print varnish to further improve the
  • Printing inks are formulated to optimise their adhesion to the substrate onto which they are to be printed.
  • the adhesion between varnish, ink and substrate is also optimised.
  • Post-print varnishes may be applied by any suitable coating technique known to the skilled practitioner. Preferred techniques include flexography, which can be used to deposit coat weights of approximately lgsm from a 3% w/w suspension of MFC. The formulation of the MFC coating must be selected to be sufficiently transparent not to detract from the
  • a coat weight of approximately lgsm from a 3% w/w suspension of MFC would be transparent.
  • preferred range for the solids content of the suspension of MFC would be from 0.1 to 30% w/w, and more preferably 2 to 15% w/w .
  • the fibres which are present in the initial paper stock may be all natural fibres or a mixture of natural and synthetic fibres, or all synthetic fibres.
  • the fibres used may be, for example, PVOH, Polyamide, polyester, or other poly olefins .
  • Double fold tests measure the durability of paper when repeatedly folded under constant load.
  • Schopper double fold tester may be used to determine the number of times a paper can be folded until it breaks. The folding strength is quoted as the number of double folds until the paper breaks (at 23C and 50% RH) .
  • the Bendtsen test is a standard test and we can quote ISO 5636-3
  • the increase in the strength of the paper substrate and the improvement in the results from the double-folds test were more significant when cotton based MFC were added to the stock compared to wood based MFC.
  • the additional strength benefits from the cotton based MFC reduces the creation of pores in the paper substrate when in circulation as a banknote or other secure substrate. A reduction in pores leads to a reduction in soiling as the soil tends to accumulate in pores on the surface of a banknote or secure substrate .
  • MFC can be incorporated both in the stock and applied as a pre-print or post-print coating.
  • the pre-print coating can be applied using a size press .
  • Additional soil resistant layers can also be coated onto the paper.
  • a typical example is Platinum ® as sold by De La Rue International Limited.
  • a size press can be used to apply the coating as is known from EP-A-2074260.
  • polyether-polyurethane resin based systems are typically used for the size press.
  • paper stock was formed by adding cotton derived MFC to the suspension of paper fibres in a quantity of 15% by weight.
  • the resulting paper was further coated with a size press, as described in EP-A-2074260, using an aqueous formulation from a selection of thermoplastic resins such as resins having an ester bond (e.g. polyester resins and polyether resins), polyurethane resins, functionalized polyurethane resins (e.g. carboxylated polyurethane resins), and copolymers ( e . g . urethane-acrylic resins, polyether- urethane resins and styrene acrylate resins) and mixtures thereof.
  • thermoplastic resins such as resins having an ester bond (e.g. polyester resins and polyether resins), polyurethane resins, functionalized polyurethane resins (e.g. carboxylated polyurethane resins), and copolymers ( e . g . urethane-acrylic
  • the paper was coated with a Platinum ® polyurethane using materials and techniques described in EP- A-0815321.
  • the coat weight of such a polyurethane coating will be between 0.05 and 20 gsm and more preferably between 0.5 and 5gsm .

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Paper (AREA)
PCT/GB2013/051282 2012-05-29 2013-05-17 A substrate for security documents Ceased WO2013178986A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP13723935.6A EP2855772B1 (en) 2012-05-29 2013-05-17 A substrate for security documents
CN201380028188.4A CN104350203A (zh) 2012-05-29 2013-05-17 安全单据用基质
IN9839DEN2014 IN2014DN09839A (https=) 2012-05-29 2013-05-17
BR112014029228A BR112014029228A2 (pt) 2012-05-29 2013-05-17 substrato para documentos de segurança
RU2014153157A RU2014153157A (ru) 2012-05-29 2013-05-17 Подложка для защищенных от подделки документов
KR20147036327A KR20150024346A (ko) 2012-05-29 2013-05-17 보안 문서용 기재
US14/404,235 US20150191036A1 (en) 2012-05-29 2013-06-17 Substrate for security documents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1209516.2 2012-05-29
GB1209516.2A GB2502955B (en) 2012-05-29 2012-05-29 A substrate for security documents

Publications (1)

Publication Number Publication Date
WO2013178986A1 true WO2013178986A1 (en) 2013-12-05

Family

ID=46546116

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2013/051282 Ceased WO2013178986A1 (en) 2012-05-29 2013-05-17 A substrate for security documents

Country Status (10)

Country Link
US (1) US20150191036A1 (https=)
EP (1) EP2855772B1 (https=)
KR (1) KR20150024346A (https=)
CN (1) CN104350203A (https=)
BR (1) BR112014029228A2 (https=)
GB (1) GB2502955B (https=)
IN (1) IN2014DN09839A (https=)
PL (1) PL2855772T3 (https=)
RU (1) RU2014153157A (https=)
WO (1) WO2013178986A1 (https=)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015091873A1 (fr) * 2013-12-20 2015-06-25 Oberthur Fiduciaire Sas Procede de traitement de surface d'un document de securite et document de securite associe
US20150191036A1 (en) * 2012-05-29 2015-07-09 De La Rue International Limited Substrate for security documents
WO2016034687A1 (fr) * 2014-09-05 2016-03-10 Oberthur Fiduciaire Sas Support papier, son procédé de fabrication et document de sécurité fabriqué avec celui-ci
EP3228744A1 (en) * 2016-04-06 2017-10-11 European Central Bank Use of nano cellulose on a paper product
US11352750B2 (en) 2017-09-22 2022-06-07 Council Of Scientific & Industrial Research Shaped objects for use in security applications
WO2025219046A1 (de) * 2024-04-15 2025-10-23 Giesecke+Devrient Currency Technology Gmbh Sicherheitssubstrat für banknoten und herstellungsverfahren

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112018005873B1 (pt) * 2015-09-23 2023-03-14 Stora Enso Oyj Método para impressão de um material de rede úmido compreendendo celulose microfibrilada
ES2857512T3 (es) 2016-04-05 2021-09-29 Fiberlean Tech Ltd Productos de papel y cartón
US11846072B2 (en) 2016-04-05 2023-12-19 Fiberlean Technologies Limited Process of making paper and paperboard products
SE540365C2 (en) 2016-09-28 2018-08-14 Stora Enso Oyj A method for the production of a film comprising microfibrillated cellulose, a film and a paper or paperboard product
TWI623573B (zh) * 2016-11-16 2018-05-11 財團法人工業技術研究院 混成樹脂組成物
SE541275C2 (en) 2016-12-22 2019-06-04 Stora Enso Oyj A method for the production of a coated film comprising microfibrillated cellulose
CN113677538B (zh) 2019-01-30 2023-09-19 柯尼格及包尔纸币解决方案有限公司 用于制备聚合物安全制品的工艺
WO2020156656A1 (en) 2019-01-30 2020-08-06 Kba-Notasys Sa Process for preparing polymeric security articles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066145A (en) * 1979-12-26 1981-07-08 Itt Microfibrillated cellulose
EP0198837A1 (en) * 1984-01-19 1986-10-29 Svenska Träforskningsinstitutet Paper with improved surface properties and method of making the same
WO2008054581A1 (en) * 2006-10-27 2008-05-08 Crane & Co., Inc. A soil and/or moisture resistant secure document
WO2011056130A1 (en) * 2009-11-03 2011-05-12 Stora Enso Oyj A coated substrate, a process for production of a coated substrate, a package and a dispersion coating
WO2011068457A1 (en) * 2009-12-03 2011-06-09 Stora Enso Oyj A process for production of a paper or paperboard product
WO2012098296A2 (en) * 2011-01-20 2012-07-26 Upm-Kymmene Corporation Method for improving strength and retention, and paper product

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374702A (en) * 1979-12-26 1983-02-22 International Telephone And Telegraph Corporation Microfibrillated cellulose
US4464287A (en) * 1980-10-31 1984-08-07 International Telephone And Telegraph Corporation Suspensions containing microfibrillated cellulose
US4378381A (en) * 1980-10-31 1983-03-29 International Telephone And Telegraph Corporation Suspensions containing microfibrillated cellulose
US4452721A (en) * 1980-10-31 1984-06-05 International Telephone And Telegraph Corporation Suspensions containing microfibrillated cellulose
US4483743A (en) * 1981-10-22 1984-11-20 International Telephone And Telegraph Corporation Microfibrillated cellulose
US4481076A (en) * 1983-03-28 1984-11-06 International Telephone And Telegraph Corporation Redispersible microfibrillated cellulose
US4481077A (en) * 1983-03-28 1984-11-06 International Telephone And Telegraph Corporation Process for preparing microfibrillated cellulose
US5104411A (en) * 1985-07-22 1992-04-14 Mcneil-Ppc, Inc. Freeze dried, cross-linked microfibrillated cellulose
FR2629844B1 (fr) * 1988-04-06 1991-09-27 Clextral Procede pour la fabrication d'une pate a papier a usage fiduciaire
GB2282611B (en) * 1993-09-27 1997-01-29 Portals Ltd Improvement in security features for paper
FR2730252B1 (fr) * 1995-02-08 1997-04-18 Generale Sucriere Sa Cellulose microfibrillee et son procede d'obtention a partir de pulpe de vegetaux a parois primaires, notamment a partir de pulpe de betteraves sucrieres.
JPH08232190A (ja) * 1995-02-28 1996-09-10 Daicel Chem Ind Ltd 裏抜けの無い紙
US6183596B1 (en) * 1995-04-07 2001-02-06 Tokushu Paper Mfg. Co., Ltd. Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same
FI20020521A0 (fi) * 2002-03-19 2002-03-19 Raisio Chem Oy Paperin pintakäsittelykoostumus ja sen käyttö
MXPA04012799A (es) * 2002-07-18 2005-03-31 Japan Absorbent Tech Inst Metodo y aparato para producir celulosa microfibrilada.
US7037405B2 (en) * 2003-05-14 2006-05-02 International Paper Company Surface treatment with texturized microcrystalline cellulose microfibrils for improved paper and paper board
US20060266485A1 (en) * 2005-05-24 2006-11-30 Knox David E Paper or paperboard having nanofiber layer and process for manufacturing same
CA2641607C (en) * 2006-02-08 2013-03-26 Stfi-Packforsk Ab Method for the manufacturing of microfibrillated cellulose
EP2014828B1 (en) * 2006-04-21 2014-03-05 Nippon Paper Industries Co., Ltd. Cellulose-based fibrous material
US8444808B2 (en) * 2006-08-31 2013-05-21 Kx Industries, Lp Process for producing nanofibers
ATE449210T1 (de) * 2006-09-12 2009-12-15 Meadwestvaco Corp Pappe mit mikroplättchenförmigen celluloseteilchen
PL3095912T3 (pl) * 2008-04-03 2019-08-30 Rise Innventia Ab Kompozycja do powlekania papieru do druku
WO2010023420A1 (en) * 2008-08-28 2010-03-04 De La Rue International Limited Document of value and method for detecting soil level
FI124724B (fi) * 2009-02-13 2014-12-31 Upm Kymmene Oyj Menetelmä muokatun selluloosan valmistamiseksi
EP2408861A4 (en) * 2009-03-20 2013-05-29 Fpinnovations CELLULOSE MATERIALS WITH NEW PROPERTIES
GB0908401D0 (en) * 2009-05-15 2009-06-24 Imerys Minerals Ltd Paper filler composition
FI125818B (fi) * 2009-06-08 2016-02-29 Upm Kymmene Corp Menetelmä paperin valmistamiseksi
FI121890B (fi) * 2009-06-08 2011-05-31 Upm Kymmene Corp Uudentyyppinen paperi ja menetelmä sen valmistamiseksi
SE533510C2 (sv) * 2009-07-07 2010-10-12 Stora Enso Oyj Metod för framställning av mikrofibrillär cellulosa
NO2496766T3 (https=) * 2009-11-06 2017-12-30
FI123289B (fi) * 2009-11-24 2013-01-31 Upm Kymmene Corp Menetelmä nanofibrilloidun selluloosamassan valmistamiseksi ja massan käyttö paperinvalmistuksessa tai nanofibrilloiduissa selluloosakomposiiteissa
SE534932C2 (sv) * 2009-12-21 2012-02-21 Stora Enso Oyj Ett pappers eller kartongsubstrat, en process för tillverkning av substratet och en förpackning bildad av substratet
GB201019288D0 (en) * 2010-11-15 2010-12-29 Imerys Minerals Ltd Compositions
NZ709188A (en) * 2011-02-14 2017-01-27 Xyleco Inc A method of production sugar from paper
US9460309B2 (en) * 2011-05-06 2016-10-04 Peeled Group Llc Security pouch for an electronic device
FI20115435A7 (fi) * 2011-05-06 2012-11-07 Upm Kymmene Corp Hydrofobinen päällyste ja menetelmä hydrofobisen päällysteen aikaansaamiseksi
WO2013072277A2 (en) * 2011-11-14 2013-05-23 Basf Se Akd composition and manufacture of paper and paperboard
FI124556B (en) * 2012-04-26 2014-10-15 Stora Enso Oyj A hydrophobic bonded fibrous web and a method of making a bonded web
ES2386045B1 (es) * 2012-05-03 2013-04-18 Saica Pack, S.L. Procedimiento de obtención de celulosa nanofibrilada a partir de papel recuperado
GB2502955B (en) * 2012-05-29 2016-07-27 De La Rue Int Ltd A substrate for security documents
US8906198B2 (en) * 2012-11-02 2014-12-09 Andritz Inc. Method for production of micro fibrillated cellulose
FI127682B (en) * 2013-01-04 2018-12-14 Stora Enso Oyj Process for manufacturing microfibrillated cellulose
FR3003580B1 (fr) * 2013-03-20 2015-07-03 Ahlstroem Oy Non-tisse par voie humide comprenant des nanofibrilles de cellulose

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066145A (en) * 1979-12-26 1981-07-08 Itt Microfibrillated cellulose
EP0198837A1 (en) * 1984-01-19 1986-10-29 Svenska Träforskningsinstitutet Paper with improved surface properties and method of making the same
WO2008054581A1 (en) * 2006-10-27 2008-05-08 Crane & Co., Inc. A soil and/or moisture resistant secure document
WO2011056130A1 (en) * 2009-11-03 2011-05-12 Stora Enso Oyj A coated substrate, a process for production of a coated substrate, a package and a dispersion coating
WO2011068457A1 (en) * 2009-12-03 2011-06-09 Stora Enso Oyj A process for production of a paper or paperboard product
WO2012098296A2 (en) * 2011-01-20 2012-07-26 Upm-Kymmene Corporation Method for improving strength and retention, and paper product

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150191036A1 (en) * 2012-05-29 2015-07-09 De La Rue International Limited Substrate for security documents
RU2671098C1 (ru) * 2013-12-20 2018-10-29 Обертур Фидюсьер Сас Способ обработки поверхности подлежащего защите документа и защищенный при этом документ
AU2014368503B2 (en) * 2013-12-20 2019-10-17 Oberthur Fiduciaire Sas Process for the surface treatment of a security document and associated security document
KR102251250B1 (ko) * 2013-12-20 2021-05-12 오베르튀르 휘뒤셰르 사스 보안 문서의 표면 처리 방법 및 관련 보안 문서
FR3015356A1 (fr) * 2013-12-20 2015-06-26 Oberthur Fiduciaire Sas Procede de traitement de surface d'un document de securite et document de securite associe
KR20160118240A (ko) * 2013-12-20 2016-10-11 오베르튀르 휘뒤셰르 사스 보안 문서의 표면 처리 방법 및 관련 보안 문서
CN106103126A (zh) * 2013-12-20 2016-11-09 欧贝特信托公司 安全票据的表面处理方法和相关的安全票据
WO2015091873A1 (fr) * 2013-12-20 2015-06-25 Oberthur Fiduciaire Sas Procede de traitement de surface d'un document de securite et document de securite associe
CN107208375A (zh) * 2014-09-05 2017-09-26 欧贝特信托公司 纸介质、其制造方法和使用其制造的安全文件
RU2685292C2 (ru) * 2014-09-05 2019-04-17 Обертур Фидюсьер Сас Бумажная основа, способ её изготовления и защищённый документ с такой основой
FR3025532A1 (fr) * 2014-09-05 2016-03-11 Oberthur Fiduciaire Sas Support papier, son procede de fabrication et document de securite fabrique avec celui-ci
WO2016034687A1 (fr) * 2014-09-05 2016-03-10 Oberthur Fiduciaire Sas Support papier, son procédé de fabrication et document de sécurité fabriqué avec celui-ci
EP3228744A1 (en) * 2016-04-06 2017-10-11 European Central Bank Use of nano cellulose on a paper product
US11352750B2 (en) 2017-09-22 2022-06-07 Council Of Scientific & Industrial Research Shaped objects for use in security applications
WO2025219046A1 (de) * 2024-04-15 2025-10-23 Giesecke+Devrient Currency Technology Gmbh Sicherheitssubstrat für banknoten und herstellungsverfahren

Also Published As

Publication number Publication date
GB2502955A (en) 2013-12-18
CN104350203A (zh) 2015-02-11
KR20150024346A (ko) 2015-03-06
US20150191036A1 (en) 2015-07-09
GB2502955B (en) 2016-07-27
BR112014029228A2 (pt) 2017-06-27
EP2855772A1 (en) 2015-04-08
GB201209516D0 (en) 2012-07-11
RU2014153157A (ru) 2016-07-20
EP2855772B1 (en) 2016-06-08
IN2014DN09839A (https=) 2015-08-07
PL2855772T3 (pl) 2017-07-31

Similar Documents

Publication Publication Date Title
EP2855772B1 (en) A substrate for security documents
Afra et al. Cellulose nanofibils as coating material and its effects on paper properties
Brodin et al. Cellulose nanofibrils: Challenges and possibilities as a paper additive or coating material–A review
EP3475485B1 (en) Microfibrillated film
JP6169970B2 (ja) セルロース強化高鉱物含量製品及びそれを製造する方法
SE545297C2 (en) A paper or papperboard packaging material comprising a gas barrier film
Das et al. Nanocellulose: its applications, consequences and challenges in papermaking
US20040023008A1 (en) Security sheet comprising a transparent or translucent layer
Salas et al. Nanocellulose applications in papermaking
CA3179407A1 (en) Process for production of nano-coated substrate
Xu et al. The influence of nano-fibrillated cellulose as a coating component in paper coating
CN116669944B (zh) 层压体
SE2050525A1 (en) Process for production of nano-coated substrate
WO2023199203A1 (en) Highly refined cellulose pulp composition with compression refined cellulose pulp
KR20170096245A (ko) 보안문서를 위한 기재
ES2577629T3 (es) Sustrato para documentos de seguridad
Kasmani et al. Comparison of the effects of two biodegradable coatings on the characteristics of white-top linerboard used in packaging food materials in cold environments
Tozluoğlu Potential Use of Nanofibrillated Cellulose-loaded Cationic Starch Solutions as Coating Formulation for Recycled Fluting Papers.
Youn et al. Applications of Nanocellulose in the Paper Industry
Kasmani et al. Improving Physical Properties and Printability of Fruit Packaging Kraft Liner with Mineral and Nanographene Coatings.
WO2026062489A1 (en) Light-barrier coating for paper and paperboard
KR101427886B1 (ko) Ｓｃ 마닐라 판지 및 판지용 코팅 조성물
Altay et al. RIT Scholar Works

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13723935

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2013723935

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14404235

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20147036327

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2014153157

Country of ref document: RU

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112014029228

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112014029228

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20141124