EP0183489B1 - A security bag - Google Patents
A security bag Download PDFInfo
- Publication number
- EP0183489B1 EP0183489B1 EP85308475A EP85308475A EP0183489B1 EP 0183489 B1 EP0183489 B1 EP 0183489B1 EP 85308475 A EP85308475 A EP 85308475A EP 85308475 A EP85308475 A EP 85308475A EP 0183489 B1 EP0183489 B1 EP 0183489B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- flap
- lip
- rear panel
- adhesive
- 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
Links
Images
Classifications
-
- 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
Definitions
- This invention relates to a security bag.
- an envelope or pouch comprising a front panel and a rear panel, the front panel having a flap foldable onto the rear panel and being united therewith by means of pressure sensitive adhesive.
- US-A-1 448 429 and Figures 4 and 5 of AU-A-523 051 there is disclosed such an envelope or pouch which, when closed, includes an outwardly turned lip extending from the rear panel adjacent the opening.
- a disadvantage of the envelope disclosed in US-A-1 448 429 and a disadvantage of the pouch disclosed in Figures 4 and 5 of AU-A-523 051 is that the envelope or pouch can be opened by application of a solvent which will break down the bond between the surfaces bonded by the adhesive.
- a bag comprising a front panel and a rear panel, the rear panel having an outwardly turned lip extending adjacent an opening of the bag and the front panel having a flap foldable onto the lip, a first portion of pressure sensitive adhesive for uniting the flap to the lip and to an outer surface of the rear panel and a second portion of pressure sensitive adhesive for uniting the lip with the outer surface of the rear panel wherein the adhesive bond between the flap and the lip is greater than the adhesive bond between the lip and the outer surface of the rear panel so that the bond between the flap and the lip provides resistance to a solvent which effects severance of the bond between the lip and the outer surface of the rear panel and the lip remains united with the flap.
- the adhesive may be provided in two portions wherein one of the portions is located so as to unite the flap with the lip and the other of the portions is located so as to unite the lip with the said outer surface of the panel having the lip.
- the flap may be provided with a weakened portion.
- the weakened portion may comprise a row of slits.
- the flap may be provided with an extended portion adapted to be separated from the flap.
- the material of the bag may be adapted to receive indicia.
- the material may be adapted to recieve indicia by having located thereon an indicia receiving zone extending from the flap to the extended portion.
- the material may be a co-extruded thermoplastic material a surface of which is capable of receiving indicia thereon.
- the flap may be a component additional to material comprising the panels.
- a surface of the material may be treated with a substance for receiving a component having a pressure sensitive adhesive thereon for uniting with the surface.
- a bag 10 comprising a sheet of synthetic plastics film material which is folded at 11 to provide a front panel 12 and a rear panel 13, the panels being welded one to another in spaced parallel side welds 14, 15, extending at right angles to the fold 11.
- the material is folded such that the front panel extends beyond the rear panel in a longitudinal direction of the side welds 14, 15 to provide an extended portion 16, and the material is provided with a pair of spaced parallel rows of slits 17, 18 extending transversely of the extended portion 16 and substantially parallel to the fold 11.
- the portion extending from the row of slits 18 to an edge of the extended portion 16 remote from the fold 11 defines a tear off strip 19.
- a portion of the rear panel 13 remote from the fold 11 is folded outwardly upon itself to provide a transversely extending lip 20 which is united with an outer surface of the rear panel 13 by pressure sensitive contact adhesive 21 extending transversely of the rear panel 13.
- the extended portion 16 has applied to a rear surface thereof a strip of pressure sensitive contact adhesive 22 which extends transversely of the extended portion 16 and in a direction from a location adjacent the fold of the lip 20 to a location adjacent the row of slits 18.
- the adhesive 22 is covered by a backing strip 23, coated with a release substance, such as silicon, on a surface thereof which contacts the adhesive 22.
- a front surface of the extended portion 16 has printed thereon two identical numbers 24, 25 located on opposite sides of the row of slits 18.
- the front surface of the extended portion 16 also has printed thereon a stripe 26 on which information can be written, the stripe 26 extending across the rows of slits 17,18.
- articles are inserted in the bag 10 by, or under the supervision of, a person authorised to do so.
- the authorised person signs his or her signature on the stripe 26 so that the signature extends across the rows of slits 17, 18.
- the tear off strip 19 is then severed from the remaining portion of the extended portion 16, along the row of slits 18 and the tear off strip 19, bearing a portion of the signature written on the stripe 26, is stored.
- the remaining portion of the extended portion 16 extending beyond the lip 20 in a direction away from the fold 11 comprises a flap 27 bearing the adhesive 22 on a rear surface thereof and the backing strip 23 covering the adhesive 22.
- the backing strip 23 is peeled from the adhesive 22 on the flap 27 thereby exposing the adhesive 22.
- the flap 27 then is folded rearwardly onto the lip 20 with a result that the adhesive 22 on the flap 27 unites with the lip 20 whereby the flap 27 is sealed to the lip 20 and to the outer surface of the rear panel 13 thereby effecting closure of the bag 10 and enveloping the contents therein.
- the bag 10 subsequently is opened by severing the material of the bag 10 in a direction substantially parallel and adjacent to the fold 11, as indicated in Figure 3.
- the bond between the flap 27 and the lip 20 is greater than between the lip 20 and the outer surface of the rear panel 13.
- differential bonding may be achieved by using three ply co-extruded plastics film material whereby the surfaces of the flap 27 and the lip 20 which will unite with one another provide a more substantial bond with the adhesive 22 than the opposite facing surface of the lip 20 and the rear panel 13 bonded by the adhesive 21.
- the adhesives 21 and 22 may be different so as to provide differential bonding of the respective surfaces.
- the bag 10 is resistant to application of solvent if used to attempt to open the bag 10 at the flap 27. If a solvent is deposited between the flap 27 and the adjacent outer surface of the rear panel 13, the solvent may neutralise the bonding effect of the adhesive 21 uniting the lip 20 with the remaining portion of the rear panel 13 but, due to the more effective bond between the flap 27 and the lip 20, the solvent will not break down the adhesive 22. In consequence, it may be possible, using a solvent, to peel the flap 27 from the outer surface of the rear panel 13 but such action would not result in opening of the bag 10.
- a security bag in accordance with the present invention may be provided using different combinations of the features specified above.
- a film material which is easily severed such as polyethylene
- the material may be stored such that the slip additive migrates to the surface of the material which will constitute the outer surface of the rear panel 13 of bags 10 made from the material.
- the surface embodies a greater percentage of slip additive than the opposite surface of the material which will receive the adhesive 22 which will unite the flaps 27 and the lips 20 of the respective bags 10.
- the effectiveness of a bond between two surfaces united by adhesive varies inversely with the greater the percentage of slip additive present at the or each surface. In such a case, it is possible that the row of slits 17 may be omitted since the material is easily severable.
- the row of slits 17 is likely to be necessary as is possible treatment of one or both of the opposite facing surfaces of the material such as by subjecting the material to electric corona discharge to ensure effective and/ or differential bonding of the adhesive 21 and/or 22 with the surface or surfaces in contact therewith.
- the tear off strip 19 and the stripe 26 provide added security features.
- the tear off strip 19, in being provided with a number identical with the number on the bag, can be traced to identify the authorised person who signed the stripe 26 and removed the tear off strip 19.
- the fact that a signature is written across the rows of slits 17, 18 not only provides a security feature in that difficulty would be experienced in perfectly realigning portions of a signature in reconstituting the row of slits 17, but also a fraudulently prepared tear off strip 19 is unlikely to be perfectly matched with a bag 10 such that a portion of a signature on the fraudulently prepared tear off strip 19 would correspond with a portion of a signature on the bag 10.
- the flap 27 having the tear off strip 19 may be an additional component which is united with the front panel 12 by means of adhesive or heat seal.
- the flap 27 may be of transparent material and the tear off strip 19 may also be of transparent material.
- an outer surface of the bag 10 may be treated with a substance for receiving a component, such as a postal' stamp, having a pressure sensitive adhesive thereon for uniting with the surface.
Abstract
Description
- This invention relates to a security bag.
- It is known to provide an envelope or pouch comprising a front panel and a rear panel, the front panel having a flap foldable onto the rear panel and being united therewith by means of pressure sensitive adhesive.
- In US-A-1 448 429 and Figures 4 and 5 of AU-A-523 051 there is disclosed such an envelope or pouch which, when closed, includes an outwardly turned lip extending from the rear panel adjacent the opening. However, a disadvantage of the envelope disclosed in US-A-1 448 429 and a disadvantage of the pouch disclosed in Figures 4 and 5 of AU-A-523 051 is that the envelope or pouch can be opened by application of a solvent which will break down the bond between the surfaces bonded by the adhesive.
- According to the present invention, there is provided a bag comprising a front panel and a rear panel, the rear panel having an outwardly turned lip extending adjacent an opening of the bag and the front panel having a flap foldable onto the lip, a first portion of pressure sensitive adhesive for uniting the flap to the lip and to an outer surface of the rear panel and a second portion of pressure sensitive adhesive for uniting the lip with the outer surface of the rear panel wherein the adhesive bond between the flap and the lip is greater than the adhesive bond between the lip and the outer surface of the rear panel so that the bond between the flap and the lip provides resistance to a solvent which effects severance of the bond between the lip and the outer surface of the rear panel and the lip remains united with the flap.
- The adhesive may be provided in two portions wherein one of the portions is located so as to unite the flap with the lip and the other of the portions is located so as to unite the lip with the said outer surface of the panel having the lip. The flap may be provided with a weakened portion.
- The weakened portion may comprise a row of slits.
- The flap may be provided with an extended portion adapted to be separated from the flap. The material of the bag may be adapted to receive indicia.
- The material may be adapted to recieve indicia by having located thereon an indicia receiving zone extending from the flap to the extended portion.
- The material may be a co-extruded thermoplastic material a surface of which is capable of receiving indicia thereon.
- The flap may be a component additional to material comprising the panels.
- A surface of the material may be treated with a substance for receiving a component having a pressure sensitive adhesive thereon for uniting with the surface.
- Following is a description, by way of example only and with reference to the accompanying drawings, of one method of carrying the invention into effect.
- In the drawings:-
- Figure 1 is a diagrammatic perspective view of the rear of one embodiment of a bag in accordance with the present invention, the bag being in an open unused condition,
- Figure 2 is a perspective view of the front of the bag when in an open unused condition, and
- Figure 3 is a perspective view of the rear of the bag when in a closed condition.
- Referring to the drawings, there is shown a
bag 10 comprising a sheet of synthetic plastics film material which is folded at 11 to provide afront panel 12 and arear panel 13, the panels being welded one to another in spacedparallel side welds fold 11. The material is folded such that the front panel extends beyond the rear panel in a longitudinal direction of theside welds portion 16, and the material is provided with a pair of spaced parallel rows ofslits extended portion 16 and substantially parallel to thefold 11. The portion extending from the row ofslits 18 to an edge of theextended portion 16 remote from thefold 11 defines a tear offstrip 19. - A portion of the
rear panel 13 remote from thefold 11 is folded outwardly upon itself to provide a transversely extendinglip 20 which is united with an outer surface of therear panel 13 by pressuresensitive contact adhesive 21 extending transversely of therear panel 13. - The extended
portion 16 has applied to a rear surface thereof a strip of pressuresensitive contact adhesive 22 which extends transversely of the extendedportion 16 and in a direction from a location adjacent the fold of thelip 20 to a location adjacent the row ofslits 18. Theadhesive 22 is covered by abacking strip 23, coated with a release substance, such as silicon, on a surface thereof which contacts theadhesive 22. - A front surface of the extended
portion 16 has printed thereon twoidentical numbers slits 18. The front surface of the extendedportion 16 also has printed thereon astripe 26 on which information can be written, thestripe 26 extending across the rows ofslits - In use, articles are inserted in the
bag 10 by, or under the supervision of, a person authorised to do so. The authorised person signs his or her signature on thestripe 26 so that the signature extends across the rows ofslits strip 19 is then severed from the remaining portion of theextended portion 16, along the row ofslits 18 and the tear offstrip 19, bearing a portion of the signature written on thestripe 26, is stored. - The remaining portion of the extended
portion 16 extending beyond thelip 20 in a direction away from thefold 11 comprises aflap 27 bearing theadhesive 22 on a rear surface thereof and thebacking strip 23 covering theadhesive 22. - The
backing strip 23 is peeled from theadhesive 22 on theflap 27 thereby exposing the adhesive 22. - The
flap 27 then is folded rearwardly onto thelip 20 with a result that theadhesive 22 on theflap 27 unites with thelip 20 whereby theflap 27 is sealed to thelip 20 and to the outer surface of therear panel 13 thereby effecting closure of thebag 10 and enveloping the contents therein. - The
bag 10 subsequently is opened by severing the material of thebag 10 in a direction substantially parallel and adjacent to thefold 11, as indicated in Figure 3. - If an attempt is made to open the
bag 10 by lifting theflap 27 from the outer surface of therear panel 13 the dual adhesive bonding of theflap 27 with thelip 20 and of thelip 20 with the outer surface of therear panel 13, enhances resistance to the lifting force with a result that the material of thebag 10 bridging the slits of therow 17 is severed. - Since it is difficult to align the material of the
bag 10 to reconstitute the row ofslits 17, any attempt to replace the severed portion of theflap 27 after pilferage of the contents of the bag would be apparent. - Preferably, however, the bond between the
flap 27 and thelip 20 is greater than between thelip 20 and the outer surface of therear panel 13. - If, therefore, the
flap 27 is lifted from the outer surface of therear panel 13, the lifting action still would not result in peeling of theflap 27 from thelip 20 and opening of thebag 10. Such differential bonding may be achieved by using three ply co-extruded plastics film material whereby the surfaces of theflap 27 and thelip 20 which will unite with one another provide a more substantial bond with theadhesive 22 than the opposite facing surface of thelip 20 and therear panel 13 bonded by the adhesive 21. Alternatively, theadhesives - Apart from being resistant to a force lifting the
flap 27 from the outer surface of therear panel 13, thebag 10 is resistant to application of solvent if used to attempt to open thebag 10 at theflap 27. If a solvent is deposited between theflap 27 and the adjacent outer surface of therear panel 13, the solvent may neutralise the bonding effect of theadhesive 21 uniting thelip 20 with the remaining portion of therear panel 13 but, due to the more effective bond between theflap 27 and thelip 20, the solvent will not break down theadhesive 22. In consequence, it may be possible, using a solvent, to peel theflap 27 from the outer surface of therear panel 13 but such action would not result in opening of thebag 10. - It will be appreciated that a security bag in accordance with the present invention may be provided using different combinations of the features specified above. For example, a film material which is easily severed, such as polyethylene, may be used with a slip additive. The material may be stored such that the slip additive migrates to the surface of the material which will constitute the outer surface of the
rear panel 13 ofbags 10 made from the material. In consequence, the surface embodies a greater percentage of slip additive than the opposite surface of the material which will receive theadhesive 22 which will unite theflaps 27 and thelips 20 of therespective bags 10. The effectiveness of a bond between two surfaces united by adhesive varies inversely with the greater the percentage of slip additive present at the or each surface. In such a case, it is possible that the row ofslits 17 may be omitted since the material is easily severable. - Alternatively, if stronger material is used or material which comprises a plurality of layers of different characterisics is used, the row of
slits 17 is likely to be necessary as is possible treatment of one or both of the opposite facing surfaces of the material such as by subjecting the material to electric corona discharge to ensure effective and/ or differential bonding of theadhesive 21 and/or 22 with the surface or surfaces in contact therewith. - It will also be appreciated that the tear off
strip 19 and thestripe 26 provide added security features. The tear offstrip 19, in being provided with a number identical with the number on the bag, can be traced to identify the authorised person who signed thestripe 26 and removed the tear offstrip 19. Furthermore, the fact that a signature is written across the rows ofslits slits 17, but also a fraudulently prepared tear offstrip 19 is unlikely to be perfectly matched with abag 10 such that a portion of a signature on the fraudulently prepared tear offstrip 19 would correspond with a portion of a signature on thebag 10. - Furthermore, it will be appreciated that the
flap 27 having the tear offstrip 19 may be an additional component which is united with thefront panel 12 by means of adhesive or heat seal. Theflap 27 may be of transparent material and the tear offstrip 19 may also be of transparent material. - It will also be appreciated that an outer surface of the
bag 10 may be treated with a substance for receiving a component, such as a postal' stamp, having a pressure sensitive adhesive thereon for uniting with the surface.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85308475T ATE55345T1 (en) | 1984-11-23 | 1985-11-21 | SECURITY BAG. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8429626 | 1984-11-23 | ||
GB848429626A GB8429626D0 (en) | 1984-11-23 | 1984-11-23 | Security bag |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0183489A2 EP0183489A2 (en) | 1986-06-04 |
EP0183489A3 EP0183489A3 (en) | 1987-12-09 |
EP0183489B1 true EP0183489B1 (en) | 1990-08-08 |
Family
ID=10570161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85308475A Expired - Lifetime EP0183489B1 (en) | 1984-11-23 | 1985-11-21 | A security bag |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0183489B1 (en) |
JP (1) | JPS61178847A (en) |
AT (1) | ATE55345T1 (en) |
AU (1) | AU588260B2 (en) |
CA (1) | CA1267384A (en) |
DE (1) | DE3579120D1 (en) |
GB (2) | GB8429626D0 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720040A (en) * | 1986-12-19 | 1988-01-19 | Gurewitz Richard M | Security deposit bag |
US4733817A (en) * | 1987-02-05 | 1988-03-29 | Makowka Kenneth R | Envelope system with multiple pockets |
GB8722623D0 (en) * | 1987-09-25 | 1987-11-04 | Doboy Ltd | Bag sealing arrangement |
US4941196A (en) * | 1988-11-01 | 1990-07-10 | Kcl Corporation | Tamper evident bag |
CA1334955C (en) * | 1988-11-21 | 1995-03-28 | Kenneth R. Makowka | Tamper-evident sealing system for envelope and method of making same |
US5077001A (en) * | 1988-11-21 | 1991-12-31 | Makowka Kenneth R | Tamper-evident sealing system for envelope having special characteristics and method of making same |
CA2019761C (en) * | 1989-06-30 | 2000-04-25 | Gerald O. Hustad | Tamper-evident, flexible, reclosable packages |
US5108194A (en) * | 1991-01-07 | 1992-04-28 | Raden David T | Security bag |
GB2259496A (en) * | 1991-09-13 | 1993-03-17 | Gersan Ets | Security package |
US5318364A (en) * | 1992-10-28 | 1994-06-07 | Raden David T | Security bag |
FR2699505B1 (en) * | 1992-12-23 | 1995-03-10 | Schisler Cie Europ Emballages | Soft security bag. |
CA2123247A1 (en) * | 1993-05-13 | 1994-11-14 | Harry I. Roccaforte | Multi-use envelope |
IES71188B2 (en) * | 1995-11-13 | 1997-02-12 | Datablend Limited | Improvements in and relating to envelopes |
FR2764866B1 (en) * | 1997-06-20 | 1999-09-03 | Decomatic Sa | SECURITY DEVICE FOR GUARANTEEING THE AUTHENTICITY AND THE INVIOLABILITY OF A CONTAINER AND THE OBJECTS THEREIN |
GB9811190D0 (en) * | 1998-05-22 | 1998-07-22 | Britton Security Products | Multiple use security bag |
US6139184A (en) * | 1999-07-23 | 2000-10-31 | Meldon; Ben | Security storage container |
US6446861B1 (en) * | 2000-10-05 | 2002-09-10 | Robert F. Smith | Envelope for controlling and identifying access to the contents and a method of use |
JP4022240B2 (en) * | 2005-04-12 | 2007-12-12 | 株式会社サニー | Transportation method and transportation slip |
US10106297B2 (en) * | 2016-12-29 | 2018-10-23 | Inteplast Group Corporation | Reclosable bag with header |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1448429A (en) * | 1920-08-26 | 1923-03-13 | Thomas F Bradley | Double-seal envelope |
GB2032882A (en) * | 1978-09-29 | 1980-05-14 | Franko Plastics Ltd | Bags |
AU523051B2 (en) * | 1978-12-15 | 1982-07-08 | Arvey Corporation | Contaminant proof seal |
GB2051003B (en) * | 1979-05-16 | 1983-03-16 | Drg Uk Ltd | Security bag |
DE2934673A1 (en) * | 1979-08-28 | 1981-03-12 | Brdr. Schur International A/S, Horsens | BAG PACK FOR AROMATIZED FILLING GOODS AND METHOD FOR PRODUCING THE PACK. |
US4483018A (en) * | 1981-02-09 | 1984-11-13 | Impakt Products, Inc. | High integrity tamper resistant container |
-
1984
- 1984-11-23 GB GB848429626A patent/GB8429626D0/en active Pending
-
1985
- 1985-11-21 EP EP85308475A patent/EP0183489B1/en not_active Expired - Lifetime
- 1985-11-21 DE DE8585308475T patent/DE3579120D1/en not_active Expired - Fee Related
- 1985-11-21 GB GB8528653A patent/GB2167381B/en not_active Expired
- 1985-11-21 AT AT85308475T patent/ATE55345T1/en not_active IP Right Cessation
- 1985-11-22 CA CA000496038A patent/CA1267384A/en not_active Expired - Fee Related
- 1985-11-22 JP JP60263625A patent/JPS61178847A/en active Pending
- 1985-11-22 AU AU50287/85A patent/AU588260B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0183489A3 (en) | 1987-12-09 |
ATE55345T1 (en) | 1990-08-15 |
JPS61178847A (en) | 1986-08-11 |
AU588260B2 (en) | 1989-09-14 |
GB2167381A (en) | 1986-05-29 |
CA1267384A (en) | 1990-04-03 |
GB2167381B (en) | 1989-04-05 |
GB8528653D0 (en) | 1985-12-24 |
AU5028785A (en) | 1986-05-29 |
EP0183489A2 (en) | 1986-06-04 |
DE3579120D1 (en) | 1990-09-13 |
GB8429626D0 (en) | 1985-01-03 |
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