EP0729529B1 - Verfahren zur herstellung eines sicherheitsfaden - Google Patents

Verfahren zur herstellung eines sicherheitsfaden Download PDF

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Publication number
EP0729529B1
EP0729529B1 EP94918513A EP94918513A EP0729529B1 EP 0729529 B1 EP0729529 B1 EP 0729529B1 EP 94918513 A EP94918513 A EP 94918513A EP 94918513 A EP94918513 A EP 94918513A EP 0729529 B1 EP0729529 B1 EP 0729529B1
Authority
EP
European Patent Office
Prior art keywords
yarn
roll
mixture
absorbent material
basin
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
EP94918513A
Other languages
English (en)
French (fr)
Other versions
EP0729529A1 (de
Inventor
Roberto Del Dotto
Marco Del Dotto
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.)
Ilc Del Dotto Srl
Original Assignee
Ilc Del Dotto Srl
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 Ilc Del Dotto Srl filed Critical Ilc Del Dotto Srl
Publication of EP0729529A1 publication Critical patent/EP0729529A1/de
Application granted granted Critical
Publication of EP0729529B1 publication Critical patent/EP0729529B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06Q—DECORATING TEXTILES
    • D06Q1/00—Decorating textiles

Definitions

  • the present invention concerns a process for obtaining a safety yarn that may be applied for preventing counterfeits and falsifications into the seams and decorations of documents, like passports and similar, and of leather goods and clothing, of the kind becoming luminescent if exposed to light sources like ultraviolet Wood lamps, and the realization process thereof.
  • EP-A-0 169 750 is known, in which luminescence is applied exploiting a dyeing process in which fibres of a very reduced length are described, incorporated in a paper mixture.
  • the aim set forth is reached by means of the process, according to the present invention, for obtaining a yarn of the synthetic kind like polyamide, polyester and similar, raw or dyed and lubricated with silicone mixtures, or for obtaining a yarn of a cotton-synthetic mixture, raw or dyed and polished, satined or glazed by means of flours, grease, wax, paraffin-oil, silicon so as to eliminate all down which is always present in cotton, which is passed, according to claim 1 through a homogeneous liquid mixture of pure pigment with solvents, so as to become luminescent and remarkable in a colour shade, if exposed to the Wood lamp, different from the optical one.
  • the main advantage of the yarn obtained by means of the process according to the present invention consists in that the determined shade may be perfectly seen, under the Wood lamp, without any difference of shade in the chosen colour, so as to prevent any counterfeit to the documents and the goods to which it will be applied.
  • the figure shows the means and the sequence of the realization phases for obtaining a safety yarn for preventing counterfeits and falsifications of documents and leather goods and clothing, characterized in:
  • the process will be completed by the electronic precision meter counter (12), by means of which the chosen length, according to the kind and thickness of the yarn (F) used, may be programmed, and by the control (13) of the oil level in the operating machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (2)

  1. Vorgehen zur Erhaltung eines Sicherheitsgarnes, bei dem die Lumiseszenz angewendet wird, und bestehend aus einer Färbungsphase, gekennzeichnet durch:
    mehrere Spanner (1) zum kontrollierten Abrollen des Garns (F), das von einer anfänglichen Spule (R) kommt;
    einen kleinen, halbzylinderförmigen Behälter (2), gespeist durch konstante Mengen von Mischungen aus Farbstoff und Lösungsmitteln, durch einen Tropfendosierer (3) mit regulierbarem Fluss, bestehend aus einer ersten Stahlrolle (4) mit elektrischen Antrieb, unter der das Garn (F) während seines vorbestimmten Weges durchläuft, wobei es vollständig in obigen Behälter (2) untertaucht;
    eine zweite Stahlrolle (5), die gegen die erste Stahlrolle (4) gedrückt und mit aufnahmefähigem Material verkleidet ist, dazu geeignet, die Mischung aufzunehmen und sie mit grösster Gleichmässigkeit auf das Garn (F) zu verteilen, das zwischen den zwei Rollen durchläuft;
    eine Vorrichtung (6) um die zweite und erste Rolle (5 und 4) mittels einer sich selbst regulierenden mechanischen Kraft gegeneinander gedrückt zu halten, und zwar mit Hinsicht auf die Dicke des Garnes (F), um zu verhindern, dass dieses Uberflüssige Mischung transportiert;
    eine Lenkvorrichtung des Garnes aus Keramik (7), die vor dem Eintritt des Garnes (F) in den Behälter (2) vorgesehen ist, und die auf horizonaler Ebene regulier bar ist, um die Dauerhaftigkeit des absorbierenden Materials der zweiten Rolle (5) zu erhöhen, die sich auf Grund der Laufgeschwindigkeit des Garnes (F) schnell verbraucht, und um das Rutschen zwischen der ersten und zweiten Rolle (4 und 5) zu verzögern, das durch hohe mechanische Reibung des Garnes (F) selbst auf das saugfähige Material hervorgerufen wird, das den Grund fur das periodische Auswechseln bildet;
    eine dritte Stahlrolle (8), die teilweise in einen weiteren Behälter (9) getaucht ist, der Schmiermittel enthält, um das Garn (F), mit dem es in Berührung kommt, mit der nötigen Gleitbarkeit fur den Nähgebrauch mittels einer zweiten Schmierung zu versehen, da die erste Schmierung, die schon auf dem Garn (F) vor dem Eintauchen in die Mischung durchgeführt wurde, teilweise durch Vollsaugen des absorbierenden Materials auf der zweiten Rolle (5) verringert wird;
    eine Lenkvorrichtung (10) des Garnes, die vor und nach der dritten Rolle (8) angebracht ist;
    eine Woodlampe, die zwischen dem Austritt besagten Behälters (9) und der Endspule des Garnes (F) vorgesehen ist, um eine augenblickliche visive Kontrolle des Ergebnisses zu ermöglichen;
    ein Spulungsmittel (11) fur das Garn (F).
  2. Vorrichtung nach Anspruch 1, gekennzeichnet durch die Gegenwart eines elektronischen Präzisionsmeterzählers (12), um die gewählte Länge des Garnes anzuzeigen, und zwar auf Grund seiner Art und Dicke.
EP94918513A 1994-05-31 1994-05-31 Verfahren zur herstellung eines sicherheitsfaden Expired - Lifetime EP0729529B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1994/000073 WO1995033094A1 (en) 1994-05-31 1994-05-31 Safety yarn and process for its manufacture

Publications (2)

Publication Number Publication Date
EP0729529A1 EP0729529A1 (de) 1996-09-04
EP0729529B1 true EP0729529B1 (de) 2000-01-26

Family

ID=11332179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94918513A Expired - Lifetime EP0729529B1 (de) 1994-05-31 1994-05-31 Verfahren zur herstellung eines sicherheitsfaden

Country Status (3)

Country Link
EP (1) EP0729529B1 (de)
DE (1) DE69422828D1 (de)
WO (1) WO1995033094A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2264234A1 (de) * 2009-06-16 2010-12-22 Amann & Söhne GmbH & Co. KG Garn, insbesondere Näh- oder Stickgarn

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1588282A (de) * 1968-10-01 1970-04-10
FR2566440B1 (fr) * 1984-06-22 1988-07-22 Jalon Michel Fibres de securite et autres matieres rendues luminescentes par un procede de teinture, leurs procedes de realisation et leurs applications
GB8802590D0 (en) * 1988-02-05 1988-03-02 Courtaulds Plc Fibre

Also Published As

Publication number Publication date
DE69422828D1 (de) 2000-03-02
EP0729529A1 (de) 1996-09-04
WO1995033094A1 (en) 1995-12-07

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