FR3142281B1 - Dispositif d’aimantation, cylindre et machine associés - Google Patents

Dispositif d’aimantation, cylindre et machine associés

Info

Publication number
FR3142281B1
FR3142281B1 FR2212020A FR2212020A FR3142281B1 FR 3142281 B1 FR3142281 B1 FR 3142281B1 FR 2212020 A FR2212020 A FR 2212020A FR 2212020 A FR2212020 A FR 2212020A FR 3142281 B1 FR3142281 B1 FR 3142281B1
Authority
FR
France
Prior art keywords
magnets
secondary magnets
magnet
main
assembly
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.)
Active
Application number
FR2212020A
Other languages
English (en)
Other versions
FR3142281A1 (fr
Inventor
Guillaume Chapeau
Xavier Borde
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.)
Oberthur Fiduciaire SAS
Original Assignee
Oberthur Fiduciaire SAS
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 Oberthur Fiduciaire SAS filed Critical Oberthur Fiduciaire SAS
Priority to FR2212020A priority Critical patent/FR3142281B1/fr
Priority to CN202380091829.4A priority patent/CN120548253A/zh
Priority to PCT/EP2023/078840 priority patent/WO2024104684A1/fr
Priority to EP23793294.2A priority patent/EP4619246A1/fr
Publication of FR3142281A1 publication Critical patent/FR3142281A1/fr
Application granted granted Critical
Publication of FR3142281B1 publication Critical patent/FR3142281B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/002—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink
    • B41F19/005—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink with means for applying metallic, conductive or chargeable material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
    • B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/18—Impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/045—Drying sheets, e.g. between two printing stations by radiation
    • B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369—Magnetised or magnetisable materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/20—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields
    • B05D3/207—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by magnetic fields post-treatment by magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printing Methods (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

La présente invention se rapporte notamment à un dispositif d’aimantation destiné à être placé dans un cylindre d’exposition et de transfert pour orienter des particules sensibles aux champs magnétiques, comprenant : • un ensemble principal d’aimant en forme de plaque, • une pluralité d'aimants secondaires formant un réseau bidimensionnel, • lesdits aimants secondaires étant petits par rapport à l’ensemble principal d’aimant, caractérisé par le fait que : • les pôles des aimants de ladite pluralité d'aimants secondaires sont orientés selon une direction s’étendant dans un plan généralement parallèle au plan moyen de l’ensemble principal ; • dans ladite pluralité d'aimants secondaires : chaque aimant est séparé de l’aimant voisin par un espace ; • ledit réseau d'aimants secondaires s'étend selon une surface incurvée ; • les aimants du dispositif sont aptes à ce que les lignes de champs magnétiques générées par ces aimants agissent à une distance supérieure à leur distance d’enfouissement. Figure 1
FR2212020A 2022-11-18 2022-11-18 Dispositif d’aimantation, cylindre et machine associés Active FR3142281B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR2212020A FR3142281B1 (fr) 2022-11-18 2022-11-18 Dispositif d’aimantation, cylindre et machine associés
CN202380091829.4A CN120548253A (zh) 2022-11-18 2023-10-17 磁化装置以及相关的筒和机器
PCT/EP2023/078840 WO2024104684A1 (fr) 2022-11-18 2023-10-17 Dispositif d'aimantation, cylindre et machine associés
EP23793294.2A EP4619246A1 (fr) 2022-11-18 2023-10-17 Dispositif d'aimantation, cylindre et machine associés

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2212020A FR3142281B1 (fr) 2022-11-18 2022-11-18 Dispositif d’aimantation, cylindre et machine associés
FR2212020 2022-11-18

Publications (2)

Publication Number Publication Date
FR3142281A1 FR3142281A1 (fr) 2024-05-24
FR3142281B1 true FR3142281B1 (fr) 2025-10-24

Family

ID=85175720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2212020A Active FR3142281B1 (fr) 2022-11-18 2022-11-18 Dispositif d’aimantation, cylindre et machine associés

Country Status (4)

Country Link
EP (1) EP4619246A1 (fr)
CN (1) CN120548253A (fr)
FR (1) FR3142281B1 (fr)
WO (1) WO2024104684A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020160194A1 (en) 2001-04-27 2002-10-31 Flex Products, Inc. Multi-layered magnetic pigments and foils
US7934451B2 (en) 2002-07-15 2011-05-03 Jds Uniphase Corporation Apparatus for orienting magnetic flakes
EP1961559A1 (fr) * 2007-02-20 2008-08-27 Kba-Giori S.A. Corps cylindrique d'orientation de paillettes magnétiques contenues dans une encre ou un vernis appliquées sur un substrat en forme de feuille ou de bande
BR112014026974B1 (pt) 2012-05-07 2020-12-08 Sicpa Holding Sa camada de efeito óptico, dispositivo e método para produzir a mesma, documento de segurança e uso de uma camada de sefeito óptico
DE102013015277B4 (de) * 2013-09-16 2016-02-11 Schwarz Druck GmbH Orientierung magnetisch orientierbarer Partikel in einer Farbe mit mehreren einander überlagerten Magnetfeldern
AU2015306179A1 (en) * 2014-08-22 2016-12-22 Sicpa Holding Sa Apparatus and method for producing optical effect layers
KR20160083353A (ko) * 2014-12-30 2016-07-12 한국조폐공사 다층식 자성입자 배향장치 및 그에 따른 자성 보안요소

Also Published As

Publication number Publication date
FR3142281A1 (fr) 2024-05-24
EP4619246A1 (fr) 2025-09-24
WO2024104684A1 (fr) 2024-05-23
CN120548253A (zh) 2025-08-26

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