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EP0169750B2 - Verfahren zur Herstellung von aufleuchtenden Sicherheitsfasern und andere verwandten Materialien - Google Patents

Verfahren zur Herstellung von aufleuchtenden Sicherheitsfasern und andere verwandten Materialien Download PDF

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Publication number
EP0169750B2
EP0169750B2 EP85401148A EP85401148A EP0169750B2 EP 0169750 B2 EP0169750 B2 EP 0169750B2 EP 85401148 A EP85401148 A EP 85401148A EP 85401148 A EP85401148 A EP 85401148A EP 0169750 B2 EP0169750 B2 EP 0169750B2
Authority
EP
European Patent Office
Prior art keywords
luminescent
fibers
dyeing
chelate
materials
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.)
Expired - Lifetime
Application number
EP85401148A
Other languages
English (en)
French (fr)
Other versions
EP0169750A1 (de
EP0169750B1 (de
Inventor
Michel Jalon
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.)
Individual
Original Assignee
Individual
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9305305&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0169750(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT85401148T priority Critical patent/ATE37053T1/de
Publication of EP0169750A1 publication Critical patent/EP0169750A1/de
Application granted granted Critical
Publication of EP0169750B1 publication Critical patent/EP0169750B1/de
Publication of EP0169750B2 publication Critical patent/EP0169750B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0004—General aspects of dyeing
    • D06P1/0012—Effecting dyeing to obtain luminescent or phosphorescent dyeings
    • 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
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/903—Lottery ticket

Definitions

  • the present invention relates to a process for producing safety fibers, safety threads, textile materials, plastic films and regenerated cellulose, luminescent resins.
  • Security fibers are fibers which are incorporated in fiduciary documents or other matters for the purpose of ensuring identification, authentication, protection against counterfeiting, imitation or falsification.
  • Security threads are continuous threads or strips of film, introduced in fiduciary documents for the same purposes as security fibers.
  • other materials designates here materials which, in order to fight against their counterfeiting, imitation or falsification require a means of identification, authentication and protection obtained by the incorporation of security fibers in or on these materials.
  • the present invention relates to the production of fibers preferably from the last group which are therefore invisible in sunlight or artificial light and which, under excitation of IR, UV, or X rays, exhibit luminescence in one or more parts of the IR, visible, UV spectrum. , or X.
  • the dyes used in the context of this invention are Rare Earth compounds, or Lanthanides, with atomic number 57 to 71 to which we usually attach Yttrium and Thorium with atomic number 39 and 90.
  • the Rare Earth compounds which have these luminescence characteristics used in this invention are Chelates.
  • Fluorescent substances other than Lanthanide chelates have also been used for identification purposes, for example in accordance with patent GB-A-713,351 which describes the use of fluorescent substances sensitive to chemical reagents generally used for the falsification of fiduciary documents and the treatment of fibers with these substances.
  • German patent application 31 224 70 to add these chelates to the spinning mass used to extrude continuous threads subsequently cut into fibers.
  • the present invention therefore proposes to resolve these difficulties by describing a process for producing safety fibers in which the incorporation of luminescent chelates of lanthanides, Yttrium or Thorium is made not in the spinning mass of continuous threads, but by a dyeing process of fibers already extruded and cut into fibers (see Claim 1).
  • this invention has the advantage of having a certain similarity with the dyeing processes used by fiber dyers and therefore of using almost standard apparatuses in this industry, and of offering the possibility of carrying out manufacturing cycles compatible with the small quantities of safety fibers used by the industries which use them.
  • This dyeing process which dyes fibers with Rare Earth chelates, is carried out in two different ways.
  • the method basically consists in using as a dyeing medium a bath containing a combination of one or more solvents in which the rare earth chelates used are soluble, and one or more diluents in which the earth chelates Few are insoluble or sparingly soluble, and take all or part of the solvent in liquid or vapor phase from the dye bath.
  • This dyeing process already known in the prior art, has been used to dye with acid dyes and metalliferous acids, and those skilled in the art can find all the details in the literature, and in particular in French patents 2,054,430, 2,061,574, 2,088,081, 2,124,193.
  • Example 1 Numerous exemplary embodiments of dyeing safety fibers with luminescent rare earth chelates according to this first embodiment of the invention were produced by replacing in Examples 1 to 7 of French patent 2,054,430, and 1 to 9 of French patent 2,124,193 textile materials used by fibers, dyes used by luminescent chelates from Rare Earths; the proportions of chelates used to replace the dyes are of the same order of magnitude and are fixed as a function of the intensity of the fluorescent emission desired in the safety fibers.
  • the applicant has also found that a good dyeing of safety fibers is obtained by using a dyeing bath comprising only a solvent in which the chelates are soluble.
  • this process basically consists in forming and synthesizing Rare Earth chelate in the dye bath which contains the fibers to be dyed, and therefore in fibers to be dyed.
  • Example 2 1 kg of Fibranne® fibers of 27 dtex and 5 mm in length is introduced into a bath at 85 ° C. formed from an aqueous solution of 20 liters of 4.4.4. Trifluoro.1.Phenyl.1.3.Butanedione of Sodium for 30 minutes; an aqueous solution of Terbium chloride which then causes the synthesis of the corresponding chelate and its precipitation in the fibers is then added with stoichiometric amount.
  • the fibers taken out of the dye bath and dried still have their original whitish appearance, but are fluorescent in green under UV rays due to the presence of the chelate precipitated in the fibers.
  • the respective amounts of chelating agents and rare earth salts are set according to the nature of the chelate to be synthesized and the luminescence intensity sought in the fibers.
  • the working conditions of the dye bath are those usually used in the dyeing of textile fibers, in particular with regard to the temperature and the pressure which are selected according to the nature of the fibers to be dyed.
  • the fibers which can be used according to the first or second embodiment of this invention can be natural, artificial or synthetic, and without departing from the scope of this invention, textile materials can be dyed according to either of these two modes. of the same nature as fibers, as well as continuous threads, films, natural, artificial or synthetic resins.
  • This dyeing process can also be applied to fibers of the first and second group, that is to say already colored fibers (their color, for example yellow, being visible in sunlight or artificial dye) which will present after their dyeing according to this invention a very interesting characteristic of additional luminescent emission (in this example the yellow fibers will also have a green fluorescence under UV if they have been dyed with a Terbium chelate according to one of the two methods described).
  • the fibers produced according to Examples 1 and 2 of this invention were added in small quantities to the paper pulp; a paper machine transformed this paper pulp into paper and an excellent security paper was thus produced comprising authentication marks which are invisible except under certain lighting conditions (UV, IR, or X).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accounting & Taxation (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Finance (AREA)
  • Paper (AREA)
  • Coloring (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Multicomponent Fibers (AREA)
  • Luminescent Compositions (AREA)

Claims (5)

  1. Verfahren zur Herstellung von Sicherheitsfasern, Sicherheitsfäden, Textilmaterialien, Plastikfolien oder Folien aus regenerierter Zellulose, natürlichen, künstlichen oder synthetischen Harzen, welche durch die Einführung von lumineszierenden Lanthanid-, Yttrium- oder Thorium-Chelaten lumineszieren, dadurch gekennzeichnet, daß die Einbringung von lumineszierenden Chelaten in einem späteren Stadium als deren Erzeugung, bei welcher diese Chelate nicht eingesetzt wurden, mittels eines Färbeverfahrens, umfassend ein flüssiges Färbebad, das mindestens eines dieser lumineszierenden Chelate und gegebenenfalls einen in diesem Färbebad gelösten Farbstoff zum Färben enthält, erfolgt.
  2. Verfahren zur Herstellung von Sicherheitsfasern und anderen verwandten Materialien nach Anspruch 1, dadurch gekennzeichnet, daß diese Materialien mittels eines Färbeverfahrens lumineszierend gemacht werden, welches darin besteht, daß:
    - das zu färbende Material in ein flüssiges Bad getaucht wird, welches folgendes umfaßt:
    -- mindestens ein lumineszierendes Chelat,
    -- mindestens ein Lösungsmittel, in dem das Chelat löslich ist, in einer zum Lösen des Chelats ausreichenden Menge,
    -- mindestens ein Verdünnungsmittel, in dem das Chelat unlöslich oder schwer löslich ist, welches mit dem Lösungsmittel mischbar ist und das in einer derartigen Menge zugesetzt ist, daß das Chelat im Färbebad in Lösung gehalten wird,
    - am Ende des Färbens ein Teil oder das gesamte Lösungsmittel in flüssiger oder in Dampfphase aus dem Färbebad entfernt wird,
    - das so mit dem lumineszierenden Chelat gefärbte Material aus dem Färbebad entfernt wird.
  3. Verfahren zur Herstellung von Sicherheitsfasern und anderen verwandten Materialien nach Anspruch 1, dadurch gekennzeichnet, daß diese Materialien mittels eines Färbeverfahrens lumineszierend gemacht werden, welches im Färbebad nur ein oder mehrere Lösungsmittel, in denen mindestens ein lumineszierendes Chelat gelöst ist, umfaßt.
  4. Verfahren zur Herstellung von Sicherheitsfasern und anderen verwandten Materialien nach Anspruch 1, dadurch gekennzeichnet, daß diese Materialien mittels eines Färbeverfahrens lumineszierend gemacht werden, in dessen Verlauf das Aufziehen eines lumineszierenden Chelats bewirkt wird und dabei dessen Ausfällung in den zu färbenden Materialien auslöst.
  5. Verfahren zum Färben von Sicherheitsfasern und anderen verwandten Materialien nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dieses Färbeverfahren den so gefärbten Materialien die Eigenschaft verleiht, mindestens eine Lumineszenz in einem Teil des Infrarot-, des sichtbaren, des Ultraviolett- oder des Röntgenspektrums abzugeben, und daß es die in Sonnenlicht oder künstlichem Licht sichtbare Farbe dieser Materialien nicht verändert.
EP85401148A 1984-06-22 1985-06-11 Verfahren zur Herstellung von aufleuchtenden Sicherheitsfasern und andere verwandten Materialien Expired - Lifetime EP0169750B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401148T ATE37053T1 (de) 1984-06-22 1985-06-11 Aufleuchtende sicherheitsfasern; diese fasern enthaltende sicherheitspapiere und andere materialien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8409807A FR2566440B1 (fr) 1984-06-22 1984-06-22 Fibres de securite et autres matieres rendues luminescentes par un procede de teinture, leurs procedes de realisation et leurs applications
FR8409807 1984-06-22

Publications (3)

Publication Number Publication Date
EP0169750A1 EP0169750A1 (de) 1986-01-29
EP0169750B1 EP0169750B1 (de) 1988-09-07
EP0169750B2 true EP0169750B2 (de) 1997-01-15

Family

ID=9305305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401148A Expired - Lifetime EP0169750B2 (de) 1984-06-22 1985-06-11 Verfahren zur Herstellung von aufleuchtenden Sicherheitsfasern und andere verwandten Materialien

Country Status (5)

Country Link
US (2) US4655788A (de)
EP (1) EP0169750B2 (de)
AT (1) ATE37053T1 (de)
DE (1) DE3564832D1 (de)
FR (1) FR2566440B1 (de)

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CH516196A (de) * 1965-03-08 1971-11-30 American Cyanamid Co Verfahren zum Wiedererlangen aufgezeichneter Information
US3614430A (en) * 1969-03-10 1971-10-19 Pitney Bowes Alpex Fluorescent-ink-imprinted coded document and method and apparatus for use in connection therewith
US4219599A (en) * 1979-03-19 1980-08-26 Polaroid Corporation I.D. cards
GB2089385B (en) * 1980-05-30 1984-09-19 Gao Ges Automation Org Paper security with authenticity mark of luminescent material only in an invisible area of the light spectrum and checking method thereof
ES503112A0 (es) * 1980-05-30 1982-04-01 Gao Ges Automation Org Perfeccionamientos en la fabricacion de papel moneda y simi-lares
DE3020652A1 (de) * 1980-05-30 1981-12-10 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Wertpapier mit echtheitsmerkmalen in form von lumineszierenden substanzen und verfahren zur aenderung derselben
US4387112A (en) * 1980-10-23 1983-06-07 Blach Rodney J Article identification process and articles for practice thereof
DE3122470C2 (de) * 1981-06-05 1985-09-05 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Sicherheitspapier und Verfahren zur Herstellung desselben
US4583766A (en) * 1984-05-08 1986-04-22 Kenneth R. Wessel Secure badge for infrared badge reader and process for making same

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Publication number Publication date
US4655788A (en) 1987-04-07
FR2566440B1 (fr) 1988-07-22
EP0169750A1 (de) 1986-01-29
DE3564832D1 (en) 1988-10-13
EP0169750B1 (de) 1988-09-07
FR2566440A1 (fr) 1985-12-27
ATE37053T1 (de) 1988-09-15
US4921280A (en) 1990-05-01

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