Claims
- 1. A bag comprising:
a tube body having a first end, a second end positioned substantially opposite the first end, a front wall positioned between the first end and the second end, and a back wall positioned to face opposite the front wall between the first end and the second end, a primer material positioned on and overlying selected second end portions of an outer surface of the front wall to thereby define a first bond region between the front wall and the primer material; a front flap extension member connected to and extending outwardly from the second end of the front wall; a back flap extension member connected to and extending outwardly from the second end of the back wall, the back flap extension member is adapted to fold over, overlie, and adhere to the front flap extension member and the selected second end portions of the outer surface of the front wall when in a closed position to thereby securely close the second end; an adhesive material positioned on and overlying the back flap extension member to thereby define a second bond region between the primer material and the adhesive material when the back flap extension member is folded over the front flap extension member and the selected second end portions of the outer surface of the front wall and the adhesive material contacts the primer material the first bond region being stronger than the second bond region so that when the back flap extension member liftingly separates from at least one of the selected second end portions of the outer surface of the front wall and the front flap extension member at least one of the selected second end portions of the outer surface of the front wall and the back flap extension member tears to thereby define a tear region and so that the tear region indicates that tampering with the second end of the bag has occurred.
- 2. A bag as defined in claim 1, wherein the adhesive material also contacts and overlies the portions of the outer surface of the front wall when the back flap extension member is folded over the front flap extension member and the selected second end portions of the outer surface of the front wall.
- 3. A bag as defined in claim 1, wherein the primer material defines a liquid surface treatment in the selected second end portions of the outer surface of the front wall to promote further bonding between the adhesive material and the selected second end portions of the outer surface of the front wall when the back flap extension member is folded over the front flap extension member and the selected second end portions of the outer surface of the front wall and the adhesive material contacts the primer material.
- 4. A bag as defined in claim 3, wherein the outer surface of the front wall in the selected second end portions includes at least one outermost layer of porous material, and wherein the primer material of the liquid surface treatment penetrates into the porous material of the at least one outermost layer of the outer surface to thereby define a primer integration zone on the outer surface of the front wall.
- 5. A bag as defined in claim 4, wherein the primer integration zone also includes adhesive material contacting the porous material of the outermost layer of the outer surface of the front wall.
- 6. A bag as defined in claim 1, wherein the adhesive material comprises a first polyolefin polymer and the primer material comprises a second polyolefin polymer, the second polyolefin polymer having a different chemical polyolefin composition from the first polyolefin polymer.
- 7. A bag as defined in claim 6, wherein the first polyolefin polymer comprises a modified polyolefin polymer and the second polyolefin polymer comprises a vinyl acetate polymer.
- 8. A bag as defined in claim 1, wherein the selected second end portions of the front wall has a plurality of auxiliary apertures formed therein and positioned to contact the primer material.
- 9. A bag as defined in claim 8, wherein the plurality of auxiliary aperturescomprise a plurality of elongate slits are spaced apart across a width of the front wall of the tube body.
- 10. A bag as defined in claim 1, wherein an outer layer of the front wall is formed of a material capable of being torn due to the material being weaker than the first bond region.
- 11. A bag as defined in claim 10, wherein the material capable of being torn is selected from at least one of the following: a paper material, a metal foil material, and a plastic material.
- 12. A bag as defined in claim 1, wherein the tube body further includes a plurality of layers, wherein at least one of the plurality of layers having a peripheral end portion extends past other peripheral end portions of other layers, and wherein the back flap extension member is connected to the at least one layer having a peripheral end portion that extends past the other peripheral end portions of the other layers.
- 13. A bag as defined in claim 12, wherein the at least one layer comprises an innermost layer of the plurality of layers and wherein the back flap extension member has a longer longitudinal extent than the front flap extension member.
- 14. A bag as defined in claim 1, wherein the adhesive material is positioned on the back flap extension member with a preselected spray pattern selected from at least one of the following:
spiral spray, flood coat, swirl spray, atomized spray, and slot coating.
- 15. A bag as defined in claim 1, further including a pre-applied primer material positioned on an outer surface of selected first end portions of the back wall to thereby define a first end first bond region between the back wall and the pre-applied primer material and a pre-applied adhesive material positioned to overlie a first end front flap extension member to thereby define a first end second bond region between the pre-applied primer material and the pre-applied adhesive material when the first end front flap extension member is folded over the selected first end portions of the outer surface of the back wall and the pre-applied adhesive material contacts the pre-applied primer material, the pre-applied primer material and the pre-applied adhesive material allow users to melt the pre-applied primer material and pre-applied adhesive material once the bag has been filled and the first end front flap extension member has been folded over to enable users to securely seal the first end of the tube body, the first end bond region being stronger that the first end second bond region so that when the front flap extension member liftingly separates from the selected first end portions of the outer surface of the back wall at least one of the selected first end portions of the outer surface of the back wall and the first end front flap extension member tears to thereby define a first end tear region and so that the first end tear region indicates that tampering with the first end of the bag has occurred.
- 16. A bag comprising:
a tube body having a first end, a second end positioned substantially opposite the first end, a front wall positioned between the first end and the second end, and a back wall positioned to face opposite the front wall between the first end and the second end, a back flap extension member connected to and extending outwardly from the second end of the back wall, the back flap extension member being folded over and overlying selected second end portions of an outer surface of the front wall; a primer material positioned on and overlying the selected second end portions of the outer surface of the front wall to thereby define a first bond region between the selected second end portions of the outer surface of the front wall and the primer material; and an adhesive material positioned on and overlying the back flap extension member to thereby define a second bond region between the primer material and the adhesive material once the back flap extension member is folded over the selected second end portions of the outer surface of the front wall and the adhesive material contacts the primer material so that the back flap extension member adheres to the selected second end portions of the outer surface of the front wall to thereby securely close the second end, the first bond region being stronger than the second bond region so that when the back flap extension member liftingly separates from the front wall at least one of the selected second end portions of the outer surface of the front wall and the back flap extension member tears to thereby define a tear region and so that the tear region indicates that tampering with the second end of the bag has occurred.
- 17. A bag as defined in claim 16, wherein the adhesive material also contacts and overlies the portions of the outer surface of the front wall when the back flap extension member is folded over the front flap extension member and the selected second end portions of the outer surface of the front wall.
- 18. A bag as defined in claim 17, wherein the primer material defines a liquid surface treatment in the selected second end portions of the outer surface of the front wall to promote further bonding between the adhesive material and the selected second end portions of the outer surface of the front wall when the back flap extension member is folded over the front flap extension member and the selected second end portions of the outer surface of the front wall and the adhesive material contacts the primer material.
- 19. A bag as defined in claim 18, wherein the outer surface of the front wall in the selected second end portions includes at least one outermost layer of porous material, and wherein the primer material of the liquid surface treatment penetrates into the porous material of the at least one outermost layer of the outer surface to thereby define a primer integration zone on the outer surface of the front wall.
- 20. A bag as defined in claim 19, wherein the primer integration zone also includes adhesive material contacting the porous material of the outermost layer of the outer surface of the front wall.
- 21. A bag as defined in claim 16, wherein the adhesive material comprises a first polyolefin polymer and the primer material comprises a second polyolefin polymer, the second polyolefin polymer having a different chemical polyolefin composition from the first polyolefin polymer.
- 22. A bag as defined in claim 17, wherein the first polyolefin polymer comprises a modified polyolefin and the second polyolefin polymer comprises a vinyl acetate polymer.
- 23. A bag as defined in claim 16, further comprising a front flap extension member connected to and extending outwardly from the second end of the front wall, wherein the back flap extension member also being folded over and overlying the front flap extension and the selected second end portions of the outer surface of the front wall, wherein the back flap extension member adheres to the front flap extension and the selected second end portions of the outer surface of the front wall.
- 24. A bag as defined in claim 16, wherein the back flap extension member comprises a preselected material having a plurality of auxiliary apertures formed therein and positioned to contact the primer material.
- 25. A bag as defined in claim 16, wherein the plurality of auxiliary aperturescomprise a plurality of elongate slits are spaced apart across a width of the front wall of the tube body.
- 26. A bag as defined in claim 16, wherein an outer layer of the front wall is formed of a material capable of being torn due to the material being weaker than the first bond region.
- 27. A bag as defined in claim 26, wherein the material capable of being torn is selected from at least one of the following: a paper material, a metal foil material, and a plastic material.
- 28. A bag as defined in claim 16, wherein the tube body further includes a plurality of layers, wherein at least one of the plurality of layers having a peripheral end portion extends past other peripheral end portions of other layers, and wherein the back flap extension member is connected to the at least one layer having a peripheral end portion that extends past the other peripheral end portions of the other layers.
- 29. A bag as defined in claim 28, wherein the at least one layer comprises an innermost layer of the plurality of layers and wherein the back flap extension member has a longer longitudinal extent than the front flap extension member.
- 30. A bag as defined in claim 16, wherein the adhesive material is positioned on the primer material with a preselected spray pattern selected from at least one of the following: spiral spray, flood coat, swirl spray, atomized spray, and slot coating.
- 31. A bag as defined in claim 16, further including a pre-applied primer material positioned on an outer surface of selected first end portions of the back wall to thereby define a first end first bond region between the back wall and the pre-applied primer material and a pre-applied adhesive material positioned on and overlying the first end front flap extension member to thereby define a first end second bond region between the pre-applied primer material and the pre-applied adhesive material when the first end front flap extension member is folded over the selected first end portions of the outer surface of the back wall and the pre-applied adhesive material contacts the pre-applied primer material, the pre-applied primer material and the pre-applied adhesive material allow users to melt the pre-applied primer material and pre-applied adhesive material once the bag has been filled and the first end front flap extension member has been folded over selected first end portions of the outer surface of the back wall to thereby enable users to securely seal the first end of the tube body, the first end first bond region being stronger than the first end second bond region so that when the front flap extension member liftingly separates from the selected first end portions of the outer surface of the back wall at least one of the selected first end portiosn of the outer surface of the back wall at least one of the selected first end portions of the outer surface f the back wall and the first end front flap extension member tears to thereby define a first end tear region and so that the first end tear region indicates that tampering with the first end of the bag has occurred.
- 32. A bag comprising:
a tube body having a first end, a second end positioned substantially opposite the first end, a front wall positioned between the first end and the second end, and a back wall positioned to face opposite the front wall between the first end and the second end, a back flap extension member connected to and extending outwardly from the second end of the back wall, the back flap extension member being adapted to fold over, overlie, and adhere to selected second end portions of an outer surface of the front wall when in a closed position to thereby securely close the second end; a primer material positioned on and overlying selected portions of an outer surface of the front wall to thereby define a first bond region between the front wall and the primer material; and an adhesive material positioned on and overlying the back flap extension member to thereby define a second bond region between the primer material and the adhesive material when the back flap extension member is folded over the selected second end portions of the outer surface of the front wall and the adhesive material contacts the primer material.
- 33. A bag as defined in claim 32, further comprising a front flap extension member connected to and extending outwardly from the second end of the front wall, wherein the back flap extension member also being folded over and overlying the front flap extension and the selected second end portions of the outer surface of the front wall, wherein the back flap extension member adheres to the front flap extension and the selected second end portions of the outer surface of the front wall.
- 34. A bag comprising:
a tube body having a first end, a second end positioned substantially opposite the first end, a front wall positioned between the first end and the second end, and a back wall positioned to face opposite the front wall between the first end and the second end, a first end front flap extension member connected to and extending outwardly from the first end of the front wall, the first end front flap extension member being adapted to fold over, overlie, and adhere to the selected first end portions of the back wall when in a closed position to thereby securely close the first end; a first end primer material positioned on and overlying selected first end portions of an outer surface of the back wall to thereby define a first end first bond region between the selected first end portions of the outer surface of the back wall and the first end primer material; a first end adhesive material positioned on and overlying the first end front flap extension member to thereby define a first end second bond region between the first end primer material and the first end adhesive material when the first end front flap extension member is folded over the first end front flap extension member and the selected first end portions of the back wall and the first end adhesive material contacts the first end primer material, the first end first bond region being stronger than the first end second bond region so that when the first end front flap extension member liftingly separates from the back wall, at least one of the selected first end portions of the back wall and the first end front flap extension member tears to thereby define a tear region and so that the tear region indicates that tampering with the first end of the bag has occurred; a second end back flap extension member connected to and extending outwardly from the second end of the back wall, the second end back flap extension member is adapted to fold over, overlie, and adhere to selected second end portions of the front wall when in a closed position to thereby securely close the second end; a second end primer material positioned on and overlying selected second end portions of the front wall to thereby define a second end first bond region between the selected second end portions of the front wall and the second end primer material; and a second end adhesive material positioned on and overlying the second end back flap extension member to thereby define a second end second bond region between the second end primer material and the second end adhesive material when the second end back flap extension member is folded over the second end back flap extension member and the selected second end portions of the front wall and the second end adhesive material contacts the second end primer material, the second end first bond region being stronger than the second end second bond region so that when the second end back flap extension member liftingly separates from the selected second end portions of the front wall, at least one of the selected second end portions of the front wall and the second end back flap extension member tears to thereby define a tear region and so that the tear region indicates that tampering with the second end of the bag has occurred.
- 35. A bag as defined in claim 34, wherein the first end adhesive material also contacts and overlies the selected first end portions of the outer surface of the back wall when the first end front flap extension member is folded over the selected first end portions of the outer surface of the back wall and wherein the second end adhesive material also contacts and overlies the selected second end portions of the outer surface of the front wall when the second end back flap extension member is folded over the selected second end portions of the outer surface of the front wall.
- 36. A bag comprising:
a bag body having a pair of opposing walls; and a tamper evident seal connected to an end of at least one of the pair of walls, the tamper evident seal comprising:
a flap extension member connected to and extending outwardly from the at least one wall and folded over selected portions to overlie the other one of the pair of walls; and a bond enhancer positioned between the flap extension member and the selected portions of the other one of the pair of walls of the bag body to thereby enhance the bonding strength so that at least one of the flap extension member and the other one of the pair of walls tears instead of the bond enhancer separating during lifting of the flap extension member to thereby define a tear region and so that the tear region indicates that tampering with the seal has occurred.
- 37. A bag as defined in claim 35, wherein the bond enhancer is formed by a primer material positioned on and overlying substantially all of the selected portions of the other one of the pair of walls and an adhesive material positioned on and overlying the flap extension member, the primer material and adhesive material contacting each other when the flap extension member is folded.
- 38. A bag as defined in claim 37, wherein the adhesive material comprises a first polyolefin polymer and the primer material comprises a second polyolefin polymer, wherein the second polyolefin polymer has a different chemical polyolefin composition from the first polyolefin polymer.
- 39. A bag as defined in claim 37, wherein the first polyolefin polymer comprises a modified polyolefin polymer and the second polyolefin polymer comprises a vinyl acetate polymer.
- 40. A tamper evident seal comprising:
a flap extension member connected to and extending outwardly from at least one wall of a bag body having a pair of opposing walls and folded over selected portions to overlie the other one of the pair of walls; and a bond enhancer positioned between the flap extension member and the selected portions of the other one of the pair of walls of the bag body to thereby enhance the bonding strength so that at least one of the flap extension member and the other one of the pair of walls tears instead of the bond enhancer separating during lifting of the flap extension member to thereby define a tear region and so that the tear region indicates that tampering with the seal has occurred.
- 41. A tamper evident seal as defined in claim 40, wherein the bond enhancer is formed by a primer material positioned on and overlying substantially all of the selected second end portions of the front wall and an adhesive material positioned on and overlying the flap extension member, the primer material and adhesive material contacting each other when the flap extension member is folded.
- 42. A bag as defined in claim 40, wherein the adhesive material comprises a first polyolefin polymer and the primer material comprises a second polyolefin polymer, wherein the second polyolefin polymer has a different chemical polyolefin composition from the first polyolefin polymer.
- 43. A bag as defined in claim 42, wherein the first polyolefin polymer comprises a modified polyolefin polymer and the second polyolefin polymer comprises a vinyl acetate polymer.
- 44. A method of forming a bag having a tamper evident feature associated therewith, the method comprising:
applying a primer material to overlie selected portions of a substrate to form a primed portion of the substrate and to thereby define a first bond region between the selected portions of the substrate and the primer material; forming a tube body with at least the substrate, the tube body having a first end and a second end positioned substantially opposite the first end, the tube body having a front wall positioned between the first end and the second end and a back wall positioned to face opposite the front wall, the primed portion of the substrate forming selected second end portions of an outer surface of the front wall, the tube body further including a back flap extension member connected to and extending outwardly from the second end of the back wall and a front flap extension member connected to and extending outwardly from the second end of the front wall; applying an adhesive material to overlie the back flap extension member; and folding the back flap extension member to overlie and adhere to the front flap extension member and the selected second end portions of the outer surface of the front wall to thereby securely close the second end, the primer material and the adhesive material thereby defining a second bond region, the first bond region being stronger than the second bond region so that when the back flap extension member liftingly separates from at least one of the front wall and the front flap extension member, at least one of the back flap extension member and the selected portions of the outer surface of the front wall tears indicating tampering with the second end of the bag has occurred.
- 45. A method as defined in claim 44, further comprising the step of drying the primer material prior to forming the tube body.
- 46. A method as defined in claim 44, wherein the step of applying the primer material includes printing the primer material on the selected portions of the outer surface of the front wall so that the primer material is applied to substantially all of the selected portions of the outer surface of the front wall.
- 47. A method as defined in claim 44, wherein the steps of applying the adhesive material and applying the primer material includes applying the adhesive material comprising a first polyolefin polymer and the primer material comprising a second polyolefin polymer, wherein the second polyolefin polymer has a different chemical polyolefin composition from the first polyolefin polymer.
- 48. A method as defined in claim 47, wherein the step of applying the adhesive material and applying the primer material includes applying the first polyolefin polymer comprising a modified polyolefin polymer and applying the second polyolefin polymer comprising a vinyl acetate polymer.
- 49. A method as defined in claim 44, wherein the step of forming a tube body includes forming a plurality of auxiliary apertures in the selected portions of the outer surface of the front wall prior to applying the adhesive material.
- 50. A method as defined in claim 49, wherein the step of forming a plurality of auxiliary apertures includes spacing the plurality of auxiliary apertures apart across a width of the front wall, the plurality of auxiliary apertures comprising a plurality of elongate slits.
- 51. A method as defined in claim 44, wherein the step of forming a tube body includes forming the tube body comprising a plurality of layers selected from at least one of the following: a paper material, a metal foil material, and a plastic material.
- 52. A method as defined in claim 51, wherein the step of forming a tube body includes forming a tube body with a material capable of being torn so that an outer layer of the front wall tears due to the material being weaker than the first bond region.
- 53. A method as defined in claim 44, wherein the step of forming the tube body further includes forming the tube body with a plurality of layers wherein at least one of the plurality of layers having a peripheral end portion extends past other peripheral end portions of other layers, wherein the back flap extension member is connected to the at least one of the plurality of layers having a peripheral end portion that extends past the other peripheral end portions of the other layers and is formed of the same material as the at least one of the plurality of layers.
- 54. A method as defined in claim 53, wherein the at least one of the plurality of layers comprises an innermost layer of the plurality of layers and the step of forming a tube body includes forming the tube body with the back flap extension member having a longer longitudinal extent than the front flap extension member.
- 55. A method as defined in claim 44, wherein the step of applying the adhesive material includes positioning the adhesive material on the back flap extension member with a preselected spray pattern selected from at least one of the following: spiral spray, flood coat, swirl spray, atomized spray, and slot coating.
- 56. A method as defined in claim 44, further including the step of positioning a pre-applied primer material positioned on an outer surface of selected first end portions of the back wall and a pre-applied adhesive material positioned on to overlie a first end front flap extension member, the first end front flap extension member being adapted to fold over, overlie, and adhere to the outer surface of selected first end portions of the back wall, thereby allowing users to melt the pre-applied primer material and pre-applied adhesive material once the bag has been filled and the first end front flap extension member has been folded over the outer surface of selected first end portions of the back wall to enable users to securely seal the first end of the tube body.
- 57. A method of forming a bag having a tamper evident feature associated therewith and contents therein, the method comprising:
applying a primer material to overlie selected portions of a substrate to form a first end primed portion of the substrate and to thereby define a first end first bond region and to form a second end primed portion of the substrate and to thereby define a second end first bond region between the selected portions of the substrate and the primer material; forming a tube body with at least the substrate, the tube body having a first end and a second end positioned substantially opposite the first end, the tube body having a front wall positioned between the first end and the second end and a back wall positioned to face opposite the front wall, the first end primed portion of the substrate forming selected first end portions of an outer surface of the front wall, the second end primed portion of the substrate forming selected second end portions of an outer surface of the back wall, the tube body further including a first end back flap extension member connected to and extending outwardly from the first end of the back wall and a second end front flap extension member connected to and extending outwardly from the second end of the front wall; applying an adhesive material to overlie the first end back flap extension member and the second end front flap extension member; and folding the second end front flap extension member to overlie and adhere to the selected second end portions of the outer surface of the back wall to thereby securely close the second end, the primer material and the adhesive material thereby defining a first end second bond region and a second end second bond region, the second end first bond region being stronger than the second end second bond region so that when the second end front flap extension member liftingly separates from the front wall, at least one of the second end portion of the outer surface of the back wall and the second end front flap extension member tears to thereby define a second tear region and so that the second tear region indicates that tampering with the second end of the bag has occurred; filling the bag with an end user product; and folding the first end back flap extension member to overlie and adhere to the selected first end portions of the outer surface of the front wall to thereby securely close the first end, the first end first bond region being stronger than the first end second bond region so that when the first end back flap extension member liftingly separates from the selected first end portions of the outer surface of the front wall, at least one of the first end back flap extension member and the selected first end portion of the outer surface of the front wall tears to thereby define a first tear region and so that the first tear region indicates that tampering with the first end of the bag has occurred.
- 58. A method as defined in claim 57, wherein the step of forming a tube body includes forming the tube body comprising a plurality of layers selected from at least one of the following: a paper material, a metal foil material, and a plastic material.
- 59. A method as defined in claim 57, further including the step of drying the primer material prior to forming the tube body.
- 60. A method of indicating tampering of a bag, the method comprising the step of liftingly separating a flap extension member from selected portions of a bag wall having a bond enhancer positioned between the flap extension member and the selected portions of the bag wall, thereby tearing at least one of the flap extension member and the selected portions of the bag wall to thereby define a tear region and so that the tear region indicates that tampering with the bag has occurred.
- 61. A method as defined in claim 60, wherein bond enhancer comprises an adhesive material and a primer material, the adhesive material comprising a first polyolefin polymer and the primer material comprising a second polyolefin polymer, wherein the second polyolefin polymer has a different chemical polyolefin composition from the first polyolefin polymer.
- 62. A method as defined in claim 61, wherein the first polyolefin polymer comprises a modified polyolefin polymer and the second polyolefin polymer comprises a vinyl acetate polymer.
RELATED APPLICATIONS
[0001] This continuation-in-part patent application claims the benefit of co-pending non-provisional patent application with the U.S. Ser. No. 10/341,987, filed on Jan. 14, 2003, which hereby is incorporated by reference in its entirety.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10341987 |
Jan 2003 |
US |
Child |
10366490 |
Feb 2003 |
US |