EP0628007B1 - Verpackung mit anzeige ihrer unerlaubten öffnung - Google Patents

Verpackung mit anzeige ihrer unerlaubten öffnung Download PDF

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Publication number
EP0628007B1
EP0628007B1 EP93905474A EP93905474A EP0628007B1 EP 0628007 B1 EP0628007 B1 EP 0628007B1 EP 93905474 A EP93905474 A EP 93905474A EP 93905474 A EP93905474 A EP 93905474A EP 0628007 B1 EP0628007 B1 EP 0628007B1
Authority
EP
European Patent Office
Prior art keywords
ink
pattern
adhesive
seal
bag
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
EP93905474A
Other languages
English (en)
French (fr)
Other versions
EP0628007A1 (de
Inventor
Alan Lincoln Watts
Peter John West
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.)
Britton Decoflex Ltd
Original Assignee
BRITTON SECURITY PACKAGING LIM
BRITTON SECURITY PACKAGING 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 BRITTON SECURITY PACKAGING LIM, BRITTON SECURITY PACKAGING Ltd filed Critical BRITTON SECURITY PACKAGING LIM
Publication of EP0628007A1 publication Critical patent/EP0628007A1/de
Application granted granted Critical
Publication of EP0628007B1 publication Critical patent/EP0628007B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/34—End- or aperture-closing arrangements or devices with special means for indicating unauthorised opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/32—Winding keys
    • B65D35/34—Winding keys connected to, or associated with, tube holders

Definitions

  • This invention relates to tamper indicating packages and labels, and in particular, to packages made of plastics materials, of a type which are commonly used for transporting cash or other valuables, and which are arranged so as to ensure that no tampering with the contents is possible, without such tampering being made immediately obvious on inspection.
  • a tamper indicating sealing tape, label or package including a transparent or translucent flexible plastics base material, a pattern printed on the base material in a silicone acrylate which forms a discontinuous release layer, a layer of opaque ink applied over the release pattern, and a layer of adhesive applied over the opaque ink.
  • the pattern of the release layer preferably spells out some wording such as "void", and thus, if the ink layer is opaque, and the base film is transparent or translucent, these words will be revealed, as soon as the seal is pulled apart, and it will then be very difficult for the interrupted areas of ink to be reconstituted in such a way that the wording is no longer visible.
  • systems of this kind depend on the fact that the ink has low cohesive strength, and will adhere to whichever surface has the greatest surface energy.
  • seals of this kind are useful to prevent opening of the bag by freezing it, which reduces the adhesivity of the adhesive.
  • the adhesive layer, and the ink layer are made continuous, and the discontinuities are provided by the silicone release layer.
  • such an arrangement does have the disadvantage that it is necessary to apply three successive coatings to the material, i.e. the release layer, the ink, and the adhesive.
  • the present invention therefore seeks to provide a tamper evident sealing system which has improved performance and at the same time is simpler to manufacture.
  • the present invention provides a closure for a security bag or a security label, comprising a seal for two surfaces which can be contacted together to close the seal, and including an ink pattern and an adhesive pattern, characterised in that both patterns are comprised of sets of strips or lines which are so arranged that they overlap, but do not match, at least after the seal has been closed.
  • the ink pattern is applied first to one of the surfaces to be sealed, and overlaid by the adhesive pattern.
  • the ink pattern is applied to one surface and the adhesive is applied to the opposing surface. Because the ink receiving surface must be of low surface energy great care must be used to ensure that the pattern is not damaged by normal handling before the seal is achieved. These embodiments ensure tamper evidence both at normal operating temperatures and when the adhesive strength of the adhesive has been diminished by low temperatures.
  • the supporting surface is first treated by corona discharge so as to increase surface energy and the surface is subsequently treated with a coating which reduces the surface energy to a predetermined degree for example, a coating of silicone acrylate or a blend of a silicone copolymer with other polymers or copolymers.
  • a similar effect may be achieved more simply by leaving the surface untreated and instead, using an ink which has adequate bonding to the surface.
  • These inks include those which are based on nitro-cellulose and polyamides, possibly modified by the addition of wax to obtain the right balance of adhesive and cohesive strengths.
  • titanium esters may be added to increase the temperature resistance
  • nitro-cellulose urethane inks with titanates may also be utilised.
  • ink vehicles may be used including inks which are cured by UV light and use water rather than solvents as their diluent.
  • the adhesive strips or lines may be applied in straight lines or in undulating lines produced by moving the extruder head across the substrate or conversely moving the substrate across the glue head.
  • the adhesive pattern is applied first to one of the surfaces and the ink pattern is superimposed on it.
  • tamper evidence can be achieved even when the cohesive strength of the adhesive has been diminished e.g. by high temperatures, in addition to the situation at normal and low temperatures. This is because the failure of the seal by cohesive failure still results in ink being transferred from one surface to the other and matching of the pattern becomes extremely difficult.
  • the application of the ink over the adhesive surface is best carried out by a non-contacting process such as an ink jet printer.
  • a small section of a sealing flap for a security bag comprising a region 2 extending along one edge of the flap, which is adapted to be heat sealed onto a corresponding edge of the bag to be sealed, for example along the top edge of the bag as illustrated in Figure 3.
  • the main body of the flap 4 carries a series of transversely extending glue lines, and preferably, as shown, these comprise a number of narrow lines 6, 8, 10 etc, and a broader line 12 which is positioned so that in use, it overlies a slit 14 in the face of the bag, which forms the normal opening.
  • the flap Before the lines of glue are applied to the flap, as illustrated, it is printed with a distinctive non matching opaque ink pattern comprised of sets of strips or lines. After application of the glue, the exposed glued surface is covered with a silicone release tape to protect it, before the bag is closed. As can be seen from Figure 3, when the release tape is removed and the flap is pressed down over the mouth of the bag to close it, the lines of glue will adhere to the face of the bag, and in particular, the glued area 12 will effectively seal the slit opening 14.
  • the ink pattern will become detached from the flap, in those areas that coincide with adhesive lines, whereas the ink will remain on the flap, in the intervening areas, and thus, the printed ink pattern will be clearly disrupted.
  • the ink must have a relatively low cohesive strength, so that the pattern will be clearly broken at the interface between the glued and non glued regions.
  • the flap illustrated in Figure 2 carries a further area of adhesive on its edge 2a, and otherwise functions in the same way as the flap of Figure 1.
  • Figures 4, 5 and 6 illustrate various different ways of arranging the adhesive stripes on the flap, such as lengthwise of the flap as illustrated in Figures 4 and 5, and of arranging the flap itself Figure 6.
  • the arrangement may be of the "double seal" type as exemplified by our British Patent No. 2,145,997.
  • the flap is first printed with a distinctive ink pattern, and the glue lines are subsequently laid down on top of the ink.
  • the arrangement may be "inverted" with lines of adhesive 20 applied first to a corona treated plastics (e.g. polythene) flap surface, and very narrow lines 22 of ink, subsequently laid down on top of the adhesive.
  • a corona treated plastics e.g. polythene
  • very narrow lines 22 of ink subsequently laid down on top of the adhesive.
  • This also has the advantage that a complex and "programmable" pattern can then be laid down under automatic control (for example by computer) and in this way the seal can embody a code which can be automatically read at the receiving end of the package, and which will be unreadable if the seal has been tampered with.
  • the pattern could be made to form a "bar code”.
  • the surface that the flap is brought into contact with, to form the seal is preferably treated, for example by the known process of corona discharge, so that the adhesive lines will adhere strongly to it, and thus, if a subsequent attempt is made to peel the seal apart, the considerably greater cohesive strength of the lines of adhesive will cause the narrow "bridging" regions of ink to break, thus ensuring, as before, that the overall pattern is visibly disrupted.
  • any of the arrangements discussed above could be modified by incorporating parallel sets of glue lines, comprising adhesive with different operating temperature ranges.
  • glue lines comprising adhesive with different operating temperature ranges.
  • the glue lines having the "colder" operating range must be confined between other sets, since, at normal ambient temperatures, they will be liquid and likely to "run out”. Such an arrangement will, therefore, protect the bag against tampering, even if it is frozen to a very low temperature or heated to a very high temperature, because there will always be one or other set of patterns which is disrupted by the subsequent tampering.
  • While the invention is particularly suitable for sealing devices it may also be used for labels where it is desirable that the removal of a label should be evident both on the label itself and the surface from which it has been removed. This is particulary valuable if the bar code design is incorporated thereby preventing the switching of bar coded labels which may give incorrect specification or price.

Claims (9)

  1. Verschluß für eine Sicherheitstasche oder eine Sicherheitsmarke mit einem Siegel für zwei Oberflächen, die zum Schließen des Siegels in gegenseitige Berührung gebracht werden können, und mit einem Tintenmuster und einem Klebstoffmuster, dadurch gekennzeichnet, daß beide Muster aus Gruppen von Streifen oder Linien bestehen, die so angeordnet sind, daß sie sich wenigstens nach dem Schließen des Siegels überlappen, aber nicht zusammenpassen.
  2. Verschluß nach Anspruch 1, bei dem das Tintenmuster auf eine der Oberflächen aufgebracht ist und das Klebstoffmuster dann über dem Tintenmuster aufgebracht ist.
  3. Verschluß nach Anspruch 1, bei dem das Klebstoffmuster auf eine der Oberflächen aufgebracht ist und das Tintenmuster dann über dem Klebstoffmuster aufgebracht ist.
  4. Verschluß nach einem vorhergehenden Anspruch, bei dem die Tinte mittels eines Tintenstrahldruckers aufgebracht ist.
  5. Verschluß nach Anspruch 1, bei dem das Tintenmuster auf eine der Oberflächen aufgebracht ist und das Klebstoffmuster auf die andere Oberfläche aufgebracht ist.
  6. Verschluß nach einem vorhergehenden Anspruch, bei dem die Klebstoffstreifen durch Bewegung des Ertruderkopfes und des aufnehmenden Substrats relativ zueinander in einem wellförmigen Muster abgelegt sind.
  7. Verschluß nach einem der Ansprüche 1 bis 6, für eine Tasche aus Polyethylen, bei dem die Tinte auf Basis von Nitrocellulose und Polyamiden gebildet ist.
  8. Sicherheitstasche mit einem Verschluß nach Anspruch 7, wobei die Tasche aus Polyethylen besteht und die Tinte auch Wachs und/oder Titanester enthält.
  9. Verschluß nach einem der Ansprüche 1 bis 6, bei dem die Tinte auf Basis von Nitrocelluloseurerhanen gebildet ist und Titanate enthält.
EP93905474A 1992-02-25 1993-02-25 Verpackung mit anzeige ihrer unerlaubten öffnung Expired - Lifetime EP0628007B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9203931 1992-02-25
GB929203931A GB9203931D0 (en) 1992-02-25 1992-02-25 Tamper indicating packages
PCT/GB1993/000385 WO1993016933A1 (en) 1992-02-25 1993-02-25 Tamper indicating packages

Publications (2)

Publication Number Publication Date
EP0628007A1 EP0628007A1 (de) 1994-12-14
EP0628007B1 true EP0628007B1 (de) 2000-06-28

Family

ID=10710953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93905474A Expired - Lifetime EP0628007B1 (de) 1992-02-25 1993-02-25 Verpackung mit anzeige ihrer unerlaubten öffnung

Country Status (7)

Country Link
EP (1) EP0628007B1 (de)
AT (1) ATE194120T1 (de)
AU (1) AU3638793A (de)
DE (1) DE69328925T2 (de)
ES (1) ES2149808T3 (de)
GB (2) GB9203931D0 (de)
WO (1) WO1993016933A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6270256B1 (en) 1997-04-07 2001-08-07 Sealed Air Corporation Tamper evident bag
GB9810359D0 (en) 1998-05-14 1998-07-15 Britton Security Products Coin & document bag
GB9811190D0 (en) 1998-05-22 1998-07-22 Britton Security Products Multiple use security bag
DE19963711A1 (de) * 1999-12-29 2001-07-05 Beiersdorf Ag Klebeband zum Nachweis des unbefugten Öffnens einer Verpackung
US20140270584A1 (en) * 2013-03-14 2014-09-18 Ronald H. Exner Reclosable packages and methods of manufacturing
US10725077B2 (en) 2016-12-01 2020-07-28 Nxp B.V. Tamper detector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803434A1 (de) * 1978-01-26 1979-08-02 Koenig Kg Claus Selbstklebende klarsichtfolie
GB2138396B (en) * 1983-04-21 1987-12-31 Decoflex Ltd Bags with tamper indicators
US4711368A (en) * 1986-04-11 1987-12-08 Leon Simons Tamper proof package with electrical circuit
GB2200337A (en) * 1987-01-28 1988-08-03 Metal Box Plc Plastic bags
US4972953A (en) * 1989-06-14 1990-11-27 Ivy Hill Corporation Tamper-evident packaging, method of making same and intermediate therein
FR2649078B1 (fr) * 1989-06-28 1991-09-20 Brossier Michel Procede, dispositif et moyens de mise en oeuvre d'un temoin d'ouverture de conditionnement
GB8921108D0 (en) * 1989-09-18 1989-11-01 Interpoly Ltd Tamper indicating package
US5042842A (en) * 1990-06-26 1991-08-27 Avery International Corporation High security label

Also Published As

Publication number Publication date
DE69328925T2 (de) 2001-03-01
GB9416770D0 (en) 1994-11-09
ES2149808T3 (es) 2000-11-16
ATE194120T1 (de) 2000-07-15
GB9203931D0 (en) 1992-04-08
GB2279936A (en) 1995-01-18
GB2279936B (en) 1996-06-05
DE69328925D1 (de) 2000-08-03
EP0628007A1 (de) 1994-12-14
WO1993016933A1 (en) 1993-09-02
AU3638793A (en) 1993-09-13

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