EP1259952A1 - Article de securite - Google Patents

Article de securite

Info

Publication number
EP1259952A1
EP1259952A1 EP01907931A EP01907931A EP1259952A1 EP 1259952 A1 EP1259952 A1 EP 1259952A1 EP 01907931 A EP01907931 A EP 01907931A EP 01907931 A EP01907931 A EP 01907931A EP 1259952 A1 EP1259952 A1 EP 1259952A1
Authority
EP
European Patent Office
Prior art keywords
substance
security article
article according
color former
information
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.)
Withdrawn
Application number
EP01907931A
Other languages
German (de)
English (en)
Inventor
William James Stephen Barker
Robert John Pugh
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.)
B&H Liquid Crystal Devices Ltd
Original Assignee
BH LIQUID CRYSTAL DEVICES Ltd
B&H Liquid Crystal Devices 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 BH LIQUID CRYSTAL DEVICES Ltd, B&H Liquid Crystal Devices Ltd filed Critical BH LIQUID CRYSTAL DEVICES Ltd
Publication of EP1259952A1 publication Critical patent/EP1259952A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to a security article such as a promotional or lottery ticket or a product label or container bearing hidden information which is revealed under predetermined conditions.
  • the article may be a game mechanic and may be used to promote products by introducing a game element into a promotion which is linked to the everyday use of the product.
  • a typical example of the use of prior game mechanics is a promotion linked to a cold drink in which a "win” or “lose” message appears when the game mechanic is placed against the cold drink container or placed with the container in a refrigerator.
  • the message can be made to appear by using thermochromic ink which changes in color or opacity below a certain temperature.
  • Another example is a lottery ticket with one or more opaque silver scratch-off panels, underneath which prize information has been printed.
  • An example of a known security article is an event ticket including validity information only revealed under predetermined circumstances, such as exposure to ultraviolet light.
  • the present invention provides a security article comprising a first element bearing information applied in an initially colorless substance contained in microcapsules, and a second element bearing a second substance, the first and second elements being placeable together so as to break the microcapsules and reveal the information by a reaction of the first and second substances.
  • NCR no carbon required
  • the first substance may for example comprise an initially colorless liquid color former dispersed into an ink, the second substance comprising a dispersion of a developer for the color former.
  • the first substance may comprise the developer and the second the color former.
  • the second substance may also be microencapsulated.
  • the first and second elements comprise first and second panels of a folding card, the first and second substances arranged to come into contact when the panels are folded together.
  • the elements could be separate, and for example, one of the elements could comprise a product label.
  • Breaking of the microcapsules can be achievable by applying shear force or pressure, for example by rubbing a side of one of the elements facing away from the substances with a coin.
  • the first element can bear further, colorless information applied as a decoy in a third substance which does not react with said second substance.
  • the third substance may be the same as the first substance but without the color former or developer.
  • the information is in the form of a bar code readable by a scanner.
  • the article may comprise decoy bar-code-style information printed in an initially colorless ink that in use develops into a color that cannot be read by a bar code scanner.
  • Figure 1 is a schematic side view of a game mechanic according to an embodiment of the invention
  • Figure 2 is a front view of the game mechanic shown in Figure 1;
  • Figures 3 a and 3b show a design of reactive and non-reactive substances according to another embodiment.
  • Figure 4 shows a design of reactive and non-reactive substances according to yet another embodiment.
  • Figures 1 and 2 show a game mechanic in the form of a card which is intended to be folded along the dotted line.
  • the game mechanic is fabricated by firstly printing a background pattern, text and/or solid area 1. Next, an ink comprising an initially colorless color former is printed to give prize information in the form of text or at least one shape or symbol at 2.
  • Suitable color formers include: Bisaryl carbazolyl methane compound - colorless to blue Diaminofluran compound - colorless to black
  • the color former is dissolved into a solvent mixture commonly used in capsule solvent blends. Suitable solvents include hydrogenated terphenols, Sure Sol 290 (Koch Chemical Industries) and Exxsol D-100 (Exxon Chemical).
  • the solution is then microencapsulated using techniques well known in the NCR and cosmetics industries.
  • the microcapsules are strong enough to allow dispersion into an ink and subsequent print processing but weak enough to release their contents on applying shear force, pressure or heat.
  • the microcapsules containing the colorless liquid color former are then dispersed into an ink used in lithographic, flexographic or silk screen printing.
  • the ink is usually water based but can be solvent based depending on cost and the required printing speed.
  • dummy information also in the form of text, shapes or symbols is printed at 3 using a polyvinyl alcohol or acrylic dispersion comprising microcapsules made as described above but not containing any color former.
  • a developer layer 4 is then printed on the opposite panel of the card using a polyvinyl alcohol dispersion comprising Bisphenol A (a phenolic resin), zinc salicylate or acid clay. These components may also be made into a solution and microencapsulated.
  • the card may be scored or creased along the dotted line.
  • the card In use, the card is folded to bring the prize information 2 into contact with the developer layer 4. Shear force or pressure is then applied to the outside of the folded card, the appropriate area of which may be printed accordingly, for example by rubbing with a coin.
  • the microcapsules are broken and the developer substance reacts with the color former by accepting electrons donated therefrom. The color former then acquires color and the prize information is revealed.
  • Figures 3 and 4 show examples of how the "real” prize information 5 and "dummy” information 6 could be printed.
  • the "real” information could be printed over or under the "dummy” information.
  • secret information is printed using the color former or developer on an article such as a videocassette or a document such as an event ticket to prove its validity.
  • the secret information is in the form of a bar code.
  • a series of initially colorless microencapsulated inks are printed, and when placed in contact with the developer and rubbed, at least one of the inks acquires color and reveals a bar code in a color such as blue or black that can be read by a scanner. At least one of the inks could develop into a color that is ignored by a bar code scanner, such as red.
  • the bar code readable by the scanner conveys specific information such as prize information.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Color Printing (AREA)

Abstract

L'invention concerne un article de sécurité, telle qu'une mécanique de jeu promotionnelle, un billet de loterie, un billet d'un événement ou une cassette vidéo, comprenant un premier élément renfermant des informations appliqué dans une substance incolore (2) à la base, contenue dans des microcapsules, et un second élément renfermant une seconde substance (4). Par exemple, la première substance (2) peut comprendre un liquide chromogène incolore à la base, dispersé dans une encre, et la seconde substance (4) peut comprendre une dispersion d'un révélateur du chromogène. Le premier et le second élément peuvent être placés ensemble de façon à briser les microcapsules et révéler les informations par réaction de la première et de la seconde substance (2, 4).
EP01907931A 2000-02-28 2001-02-28 Article de securite Withdrawn EP1259952A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0004690 2000-02-28
GB0004690A GB0004690D0 (en) 2000-02-28 2000-02-28 Game mechanic
PCT/GB2001/000853 WO2001065529A1 (fr) 2000-02-28 2001-02-28 Article de securite

Publications (1)

Publication Number Publication Date
EP1259952A1 true EP1259952A1 (fr) 2002-11-27

Family

ID=9886553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01907931A Withdrawn EP1259952A1 (fr) 2000-02-28 2001-02-28 Article de securite

Country Status (4)

Country Link
EP (1) EP1259952A1 (fr)
AU (1) AU2001235797A1 (fr)
GB (1) GB0004690D0 (fr)
WO (1) WO2001065529A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127795A (ja) * 1983-01-10 1984-07-23 Kenbunshiya:Kk ノ−カ−ボン用紙セツト
US4740015A (en) * 1986-07-01 1988-04-26 Moore Business Forms, Inc. Security document and method of testing same
GB9116097D0 (en) * 1991-07-25 1991-09-11 Ordonez Gabriel Security price or barcode label
US5618063A (en) * 1992-12-09 1997-04-08 Wallace Computer Services, Inc. Multicolor heat-sensitive verification and highlighting system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0165529A1 *

Also Published As

Publication number Publication date
GB0004690D0 (en) 2000-04-19
WO2001065529A8 (fr) 2002-03-14
WO2001065529A1 (fr) 2001-09-07
AU2001235797A1 (en) 2001-09-12

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Legal Events

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