WO2011151117A1 - Procédé d'identification d'un substrat - Google Patents

Procédé d'identification d'un substrat Download PDF

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Publication number
WO2011151117A1
WO2011151117A1 PCT/EP2011/056897 EP2011056897W WO2011151117A1 WO 2011151117 A1 WO2011151117 A1 WO 2011151117A1 EP 2011056897 W EP2011056897 W EP 2011056897W WO 2011151117 A1 WO2011151117 A1 WO 2011151117A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
plasma
deposition
substrate
flame
Prior art date
Application number
PCT/EP2011/056897
Other languages
German (de)
English (en)
Inventor
Bernd Grünler
Arnd Schimanski
Andreas Pfuch
Kerstin Horn
Oliver Beier
Original Assignee
Innovent E.V.
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 Innovent E.V. filed Critical Innovent E.V.
Priority to US13/701,825 priority Critical patent/US20130074449A1/en
Priority to EP11718028.1A priority patent/EP2576230A1/fr
Publication of WO2011151117A1 publication Critical patent/WO2011151117A1/fr

Links

Classifications

    • 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
    • B42D25/378—Special inks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/286—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using compounds undergoing unimolecular fragmentation to obtain colour shift, e.g. bleachable dyes
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/415—Marking using chemicals
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/445—Marking by removal of material using chemical means, e.g. etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • 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
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

  • the invention relates to a method for identifying a substrate according to the features of the preamble of claim 1.
  • Product piracy is a problem that causes significant economic damage to manufacturers of original products, especially for high quality products (cosmetics, medicines, watches, lenses, car windows, etc.).
  • Process step becomes a luminescent authenticity feature in the
  • the authenticity feature is personalized with a high-energy beam (eg a laser beam).
  • a high-energy beam eg a laser beam
  • the intensity and / or wavelength of the beam is selected so that a local bleaching of the structure of the authenticity feature takes place.
  • the structure of the authenticity feature is locally changed so that when luminescent illumination of the authenticity feature inscribed by personalization lettering is recognizable as a negative image.
  • the security and / or value document comprises a substrate and a printing layer arranged on the substrate.
  • First parts of the document have a non-radiation-modified component or a low-radiation-modified component.
  • Second parts of the document contain a radiation-modified component or more radiation-modified
  • the radiation-modified component differs from the non-radiation-modified component exclusively by radiation-induced structural differences.
  • the first subregions are indistinguishable from the second subregions with the human eye.
  • the first partial regions can be distinguished from the second partial regions by means of apparatus for measuring.
  • the data carrier in particular a value document or security paper, comprises a substrate and a coating applied to the substrate into which markings in the form of patterns, letters, numbers or images are introduced by the action of laser radiation.
  • the coating contains a layer absorbing the laser radiation and a printing layer arranged above the absorbing layer and at least partially transparent to the laser radiation.
  • the printed substrate is pressed during or after the printing of the at least partially permeable layer.
  • the invention has for its object to provide a method for identifying a substrate, with which an improved protection against plagiarism is achieved.
  • At least one luminescent dye is deposited in at least one transparent marker layer or in at least one functional layer on a surface of the substrate or on an on-surface layer as a first identification feature.
  • the transparent marker layer or the functional layer is provided with a structure in a further step for generating a second identification feature by local destruction of the dye, in particular thermally.
  • the deposition of the at least one marker layer or functional layer takes place by means of chemical vapor deposition
  • PACVD plasma activated chemical vapor deposition
  • the first identifier may encode desired information about the selected luminescent dye.
  • Luminescent dyes emit light as a result of external excitation, for example by irradiation with light of the visible spectrum or in the ultraviolet range in the case of photoluminescence.
  • Photoluminescent dyes are in particular phosphorescent and / or fluorescent. Both fluorescence and phosphorescence are Forms of luminescence (cold glow). Fluorescence ends relatively quickly after the end of irradiation (usually within one millionth of a second). In the case of phosphorescence, however, afterglow can occur over fractions of a second up to hours.
  • thermochromic and / or electrochromic and / or photochromic and / or gasochromic switching dye can be deposited.
  • Switching dyes change their color depending on a temperature (thermochromic), an electric field or a current flow (electrochromic), an excitation with light, in particular light of certain wavelengths (photochromic) or in the presence of a certain gas (gasochromic).
  • Nanozeolites are nanoscale particles of a species-rich family of chemically complex silicate minerals, the zeolites. These minerals can be up to about Save 40 percent of its dry weight of water, which is given off when heated again. In damp air, the water can be absorbed without affecting the structure of the mineral.
  • Zeolites are formed from a microporous framework structure of AIO 4 and SiCV tetrahedra. The aluminum and silicon atoms are interconnected by oxygen atoms. This results in a structure of uniform pores and / or channels in which substances can be adsorbed.
  • Zeolites can therefore be used as sieves, since only those molecules which have a smaller kinetic diameter than the pore openings of the zeolite structure adsorb in the pores.
  • the dyes are embedded in the pores of the nanozeolites.
  • organic fluorescent dyes are suitable, since they are temperature-sensitive and can easily be destroyed thermally.
  • the deposition by chemical vapor deposition using a flame or a plasma is preferably such that from a
  • Working gas a plasma jet or a flame is generated, wherein at least one precursor material is supplied to the working gas and / or the plasma jet or the working gas and / or the flame and reacted in the plasma jet or the flame. At least one reaction product of at least one of the precursors is deposited on the substrate as a marker layer or functional layer.
  • the dye is either dissolved or dispersed in a liquid medium or contained in the nanozeolites. The dissolved or dispersed dye or nano zeolites with the dye are added separately or together with the working gas or the plasma jet or the flame
  • organic dyes are preferably used, in particular chemically more stable organic dyes.
  • the dispersed dye is preferably by means of a peristaltic pump in the
  • a precursor is dissolved in a solvent and admixed with a catalyst, for example an acid.
  • a catalyst for example an acid.
  • This sol is applied to the surface to be coated and dried, so that the crosslinking begins.
  • the resulting network is called a gel.
  • a temperature of the layer can be carried out, wherein the layer is completely crosslinked.
  • a temperature for temperature control of the layer is preferably selected as a function of the decomposition temperature of the dye, ie lower than the decomposition temperature, so as not to destroy the dye during the temperature control.
  • the temperature of the layer at a temperature of at least 300 ° C. The layer thus produced is mechanically stable.
  • the deposition of at least one further marker layer or functional layer is preferably carried out by means of chemical vapor deposition using a flame or a plasma, by means of a sol-gel method or electrochemically.
  • the sol-gel coating may be followed by a previous chemical vapor deposition from the flame or the plasma.
  • the deposition is carried out by means of chemical vapor deposition using a flame or a plasma at atmospheric pressure, in particular as a normal pressure plasma process.
  • a time-consuming process step of evacuating a process chamber as well as apparatuses for vacuum generation, such as vacuum pumps and process chamber are saved in a particularly advantageous manner.
  • the method can be integrated into a process chain without great effort, which involves production and compensation of the substrate.
  • the local destruction takes place by thermal entry into the layer containing the luminescent dye.
  • the heat input raises the temperature in a locally limited area above the decomposition temperature of the luminescent dye and destroys the luminescence property locally. Ie. by the localized energy input, in particular the
  • the local destruction preferably takes place by means of a laser. This simplifies the labeling, since the laser is usually used anyway for labeling or engraving. With the laser a pinpoint thermal destruction of the dyes is possible.
  • the laser can be focused so that the dye in the marker layer or functional layer can be destroyed even if there are one or more other layers over it which were later deposited without damaging these further layers. If necessary, the laser can be tuned to an absorption wavelength of the respective dye.
  • the local destruction can be done by means of a flame or a plasma.
  • a flame or a plasma Particularly suitable for this purpose are atmospheric-pressure plasma jets which can be positioned at high spatial resolution.
  • the local destruction can be done by means of a plasma micro-stamp.
  • plasma sources in which so-called cold discharges ignite in cavities that are temporarily formed between a printing plate (stamp or roller) and the surface of the coated substrate. These treat the surface locally. These discharges are dielectric barrier and high frequency discharges.
  • a fluorescent dye in particular, an organic fluorescent dye, is preferably used because it can be easily destroyed by heating.
  • a fluorescent dye is used which emits light only when excited with an aid such as UV light and otherwise invisible.
  • a transparent or translucent substrate in particular an optical glass, for example a lens, in particular a spectacle lens, is characterized at a locally limited location of the substrate with the first and second identification feature.
  • a transparent or translucent substrate such as a watch glass or a car window, at a localized location of the substrate with the first and second
  • a transparent or translucent substrate in particular a container with the first and second identification feature is characterized.
  • the substrate may for example consist of glass or a transparent plastic.
  • the deposition of the marker layer or the functional layer can take place at the end of a process for producing the container, for example with a manufacturer of the container.
  • the local destruction can then take place in a process for filling the container, not necessarily at the manufacturer of the container, but at the manufacturer of a product that is filled into the container.
  • the first identifier is used, for example, by selecting the luminescent dye to code a production lot or a production date of the container. Different colors of the luminescent dye can, for example, code different production batches.
  • the second identification feature can then a Product batch or a filling date of a product filled in the container. This allows a follow-up of the production chain.
  • the marking of the container with the identification features can be any marking of the container with the identification features.
  • a silicon dioxide layer was applied as a marker layer to a glass substrate.
  • PACVD process plasma activated chemical vapor deposition
  • a layer with a thickness of approximately 200 nm was achieved.
  • particles of this dye were incorporated into the matrix of the marker layer.
  • the silicon dioxide coating by means of atmospheric pressure plasma was carried out using an organosilicon precursor, for example
  • Hexamethyldisiloxane HMDSO
  • the plasma torch was operated at a power of 350W.
  • the substrate was moved at a distance of 10 mm from the burner at a travel speed of 100 mm / s to 200 mm s.
  • the plasma torch was meandered over the substrate, the
  • the fluorescent dye selected was Blue-Violet LC-Fluorescent Dye 1 from Synthon Chemicals GmbH & Co. KG.
  • the thus-coated substrate was irradiated with a laser, whereby the laser was rastered over the surface of the substrate.
  • the fluorescence effect of the layer was destroyed locally in the area scanned by the laser.
  • Another dye in particular a luminescent dye and / or a thermochromic and / or electrochromic and / or photochromic and / or gasochromic switching dye, can be deposited as the first identification feature in the marker layer or in a functional layer.
  • the second identification feature can be destroyed by other means, in particular thermally.
  • a flame or a plasma, in particular a plasma microstamp can be used for this purpose.
  • the deposition can be carried out alternatively to the atmospheric pressure plasma process by other methods, for example by chemical vapor deposition using a flame, by a sol-gel method or by electrochemical deposition.
  • the sol-gel coating may be followed by a previous chemical vapor deposition from the flame or the plasma.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Laser Beam Processing (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

L'invention concerne un procédé d'identification d'un substrat, selon lequel au moins un colorant luminescent est déposé, en tant que premier signe d'identification, dans au moins une couche de marqueur transparente ou dans au moins une couche fonctionnelle sur une surface du substrat ou sur une couche située sur ladite surface, la couche de marqueur transparente ou la couche fonctionnelle étant garnie d'une structure dans une autre étape de production d'un second signe d'identification, par destruction locale, en particulier thermiquement. L'invention est caractérisée en ce que le dépôt de la couche de marqueur ou couche fonctionnelle est effectué par dépôt chimique en phase vapeur, au moyen d'une flamme ou d'un plasma, à l'aide d'un procédé sol-gel ou par voie électrochimique.
PCT/EP2011/056897 2010-06-04 2011-05-02 Procédé d'identification d'un substrat WO2011151117A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/701,825 US20130074449A1 (en) 2010-06-04 2011-05-02 Method for Labelling a Substrate
EP11718028.1A EP2576230A1 (fr) 2010-06-04 2011-05-02 Procédé d'identification d'un substrat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010022701.3 2010-06-04
DE102010022701A DE102010022701B4 (de) 2010-06-04 2010-06-04 Verfahren zur Kennzeichung eines Substrates

Publications (1)

Publication Number Publication Date
WO2011151117A1 true WO2011151117A1 (fr) 2011-12-08

Family

ID=44245215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/056897 WO2011151117A1 (fr) 2010-06-04 2011-05-02 Procédé d'identification d'un substrat

Country Status (4)

Country Link
US (1) US20130074449A1 (fr)
EP (1) EP2576230A1 (fr)
DE (1) DE102010022701B4 (fr)
WO (1) WO2011151117A1 (fr)

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WO2015090501A1 (fr) * 2013-12-17 2015-06-25 Merck Patent Gmbh Procédé de réalisation d'un marquage
EP3109058A3 (fr) * 2015-06-26 2017-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de marquage de pièces et pièces marquées

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DE102011007349B4 (de) 2011-04-14 2013-03-28 Innovent E.V. Verfahren zur Kennzeichnung eines Substrates
DE102014201425A1 (de) * 2014-01-27 2015-07-30 BSH Hausgeräte GmbH Verfahren zum Herstellen eines Haushaltsgerätebauteils, welches zumindest bereichsweise aus Gel ausgebildet wird, sowie Haushaltsgerätebauteil
FR3029529A1 (fr) * 2014-12-03 2016-06-10 Commissariat Energie Atomique Encre sol-gel luminescente pour marquer un substrat, procede de realisation d'une encre sol-gel luminescente et procede de marquage d'un substrat par une encre sol-gel luminescente.
AU2017214848B2 (en) * 2016-02-02 2021-07-08 Security Matters Ltd. Authentication of metallic objects
JP6483334B1 (ja) 2016-02-22 2019-03-13 ウエスト ファーマスーティカル サービシーズ インコーポレイテッド 医療デバイスのためのラベリング装置
DE102019125618A1 (de) * 2019-09-24 2021-03-25 Plasmatreat Gmbh Verfahren zum Auftragen einer farbigen Schicht auf ein Substrat, entsprechend beschichtetes Substrat und Stoffmischung zum Einsatz in einem solchen Verfahren

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WO2015090501A1 (fr) * 2013-12-17 2015-06-25 Merck Patent Gmbh Procédé de réalisation d'un marquage
CN105829118A (zh) * 2013-12-17 2016-08-03 默克专利股份有限公司 制备标记的方法
JP2017502859A (ja) * 2013-12-17 2017-01-26 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ マークを製造する方法
US9862219B2 (en) 2013-12-17 2018-01-09 Merck Patent Gmbh Method for producing a marking
EP3109058A3 (fr) * 2015-06-26 2017-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de marquage de pièces et pièces marquées

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US20130074449A1 (en) 2013-03-28
DE102010022701A1 (de) 2011-12-08
EP2576230A1 (fr) 2013-04-10

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