Reclosable flexible packaging and methods for manufacturing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-033/00
B65D-065/26
B65B-009/067
B65B-023/10
B65B-061/02
B65B-061/18
B65D-075/58
B31B-025/00
B65B-005/00
출원번호
US-0698568
(2011-05-18)
등록번호
US-9708104
(2017-07-18)
국제출원번호
PCT/US2011/037054
(2011-05-18)
§371/§102 date
20130204
(20130204)
국제공개번호
WO2011/146658
(2011-11-24)
발명자
/ 주소
Lyzenga, Deborah A.
Weber, Jeffrey T.
Doll, Paul E.
Fenech, Louis P.
출원인 / 주소
Intercontinental Great Brands LLC
대리인 / 주소
Fitch, Even, Tabin & Flannery LLP
인용정보
피인용 횟수 :
1인용 특허 :
337
초록▼
Flexible film packages having a partial, initial seal against ambient atmosphere and are easily openable and reclosable. The flexible film packages are generally resealable to extend the shelf-life or freshness of products contained therein once the package is initially opened. By one approach, the
Flexible film packages having a partial, initial seal against ambient atmosphere and are easily openable and reclosable. The flexible film packages are generally resealable to extend the shelf-life or freshness of products contained therein once the package is initially opened. By one approach, the flexible film has two opposing edge portions that meet to form a longitudinal seal extending from a first end seal to a second end seal. The flexible film may have a score that defines a package opening. An elongated closure layer (14) may extend over the score and may extend from a first end seal (26) to a second end seal (28) and within the opposing edge portions that form the longitudinal seal (24). The elongated closure layer may have a tack-free gripping portion (40) used to release at least a portion of the elongated closure from the flexible film to form the package opening.
대표청구항▼
1. A package comprising: a flexible film defining an interior contents cavity and having a first pair of opposing edge portions forming a first seal, a second pair of opposing edge portions forming a second seal, and a third pair of opposing edge portions forming a longitudinal seal extending from t
1. A package comprising: a flexible film defining an interior contents cavity and having a first pair of opposing edge portions forming a first seal, a second pair of opposing edge portions forming a second seal, and a third pair of opposing edge portions forming a longitudinal seal extending from the first seal to the second seal;a score in the flexible film defining an opening to the contents cavity upon initial opening;an elongated reclosure layer spaced from the third edge portions and extending from the first seal to the second seal, the elongated reclosure layer extending over the score and configured to be at least partially removed from the flexible film to expose the opening to the contents cavity;a pressure sensitive adhesive between the flexible film and the elongated reclosure layer; andthe elongated reclosure layer having a tack free gripping portion graspable to permit a user to expose the opening to the contents cavity, wherein the tack free gripping portion is formed, in part, by a tab score cut into the flexible film adjacent the first seal such that the tab score permits a portion of the flexible film to separate from a remainder of the flexible film, wherein the tack free gripping portion extends beyond the first seal, and wherein the flexible film and the elongated reclosure layer are separate and distinct layers. 2. The package of claim 1 wherein the tack free gripping portion has a first shape and the second seal has a portion removed having a second shape. 3. The package of claim 2 wherein the first shape and the second shape are the same. 4. The package of claim 1 wherein the tack free gripping portion comprises an arcuate leading edge. 5. The package of claim 4 wherein the arcuate leading edge extends across an entire width of the elongated reclosure layer. 6. The package of claim 1 wherein the flexible film has a predetermined width dimension between the third pair of opposing edge portions, and the elongated reclosure layer extends over less than half of the predetermined width dimension. 7. The package of claim 1 wherein the elongated reclosure layer extends beyond the score to cover sufficient marginal space around the score to effectively reseal the opening once the score has been initially opened. 8. The package of claim 1 wherein the elongated reclosure layer comprises a label. 9. The package of claim 1 wherein the elongated reclosure layer comprises a second flexible film and the pressure sensitive adhesive being disposed between the flexible film and the second flexible film. 10. The package of claim 1 wherein the flexible film comprises a laminate structure. 11. The package of claim 10 wherein the flexible film comprises a co-extruded film structure. 12. The package of claim 1 wherein the score is through a thickness of the flexible film. 13. The package of claim 1 wherein the score is disposed partially through a thickness of the flexible film. 14. The package of claim 1 further comprising a tray disposed within the package. 15. The package of claim 1 wherein the first seal comprises a non-peelable seal. 16. The package of claim 1 wherein the first seal comprises a peelable seal. 17. The package of claim 16 wherein the score extends into the peelable seal. 18. The package of claim 1 wherein the second seal comprises a non-peelable seal to inhibit removal of the elongated reclosure layer from the flexible film. 19. The package of claim 1 further comprising a plurality of discrete food products disposed within the package. 20. The package of claim 19 wherein as the plurality of discrete food products are removed from the package, the flexible film is compacted, and the elongated reclosure layer wraps over the compacted film such that the pressure sensitive adhesive adheres to an opposite side of the package. 21. The package of claim 1 wherein the score in the flexible film defining the opening extends either straight or arcuate or a combination thereof. 22. The package of claim 1 wherein the score in the flexible film defining the opening comprises a pair of parallel score lines. 23. The package of claim 1 wherein the score in the flexible film defining the opening comprises a leading end portion configured to propagate a tendency to rupture. 24. The package of claim 1 wherein the score in the flexible film defining the opening comprises a trailing end portion configured to resist tearing of the flexible film beyond the score in the flexible film defining the opening. 25. The package of claim 24 wherein the trailing end portion of the score in the flexible film defining the opening is configured with one of a single J-hook, double J-hook, smile, Shepherd's hook, dovetail, and extension to the second seal. 26. The package of claim 1 wherein the score in the flexible film defining the opening comprises a U-shaped configuration. 27. The package of claim 1 wherein the score in the flexible film defining the opening is applied to an interior side of the flexible film. 28. The package of claim 1 wherein the tab score comprises a pattern of scores. 29. The package of claim 28 wherein the pattern of scores comprises at least one of a straight line or an arcuate line or a combination of both. 30. A laminate for producing flexible packages, the laminate comprising: a continuous web of flexible film having a width between side edges thereof and a longitudinal axis extending transversely to the width;a continuous reclosure layer applied to the continuous web of flexible film along the longitudinal axis thereof with a pressure sensitive adhesive, the continuous reclosure layer being applied on a portion of the width of the continuous web of flexible film spaced from the side edges thereof; andthe continuous web of flexible film and the continuous reclosure layer configured to be formed into a series of identical packages, the flexible film of each identical package having a first score formed therein, the reclosure layer extending over the first score and configured to be at least partially removed from the flexible film which subsequently forms a package opening; andeach identical package having an adhesive free gripping portion subsequently defined, in part, by a second score in a transition area between adjacent packages, wherein the continuous web of flexible film and the continuous elongated reclosure layer are separate and distinct layers. 31. A flexible film package comprising: a flexible film having two opposing edge portions forming a longitudinal seal extending from a first seal to a second seal;a score in the flexible film that defines a package opening upon initial opening;an elongated reclosure layer spaced from the edge portions and extending from the first seal to the second seal, the elongated reclosure layer extending over the score and configured to be at least partially removed from the flexible film to expose the package opening;a pressure sensitive adhesive between the flexible film and the elongated reclosure layer; andthe elongated reclosure layer having a tack free gripping portion graspable to permit a user to expose the package opening, the tack free gripping portion disposed outside of the first seal and the tack free gripping portion formed, in part, by a tab score in the flexible film, wherein the tack free gripping portion extends beyond the first seal, and wherein the flexible film and the elongated reclosure layer are separate and distinct layers. 32. A package comprising: a flexible film defining an interior contents cavity and having a first pair of opposing edge portions forming a first seal, a second pair of opposing edge portions forming a second seal, and a third pair of opposing edge portions forming a longitudinal seal extending from the first seal to the second seal;a cut in the flexible film defining an opening to the contents cavity upon initial opening;an elongated reclosure layer applied to the flexible film intermediate of the third pair of opposing edge portions and extending from the first seal to the second seal and over the score, the elongated reclosure layer configured to be at least partially removed from the flexible film to expose the opening to the contents cavity;a pressure sensitive adhesive between the flexible film and the elongated reclosure layer; andthe elongated reclosure layer having a tack free gripping portion graspable to permit a user to expose the opening to the contents cavity, the tack free gripping portion formed, in part, by a tab score formed in the flexible film, wherein the tack free gripping portion extends beyond the first seal, and wherein the flexible film and the elongated reclosure layer are separate and distinct layers. 33. The package of claim 1, wherein the pressure sensitive adhesive is configured to remain attached to the elongated reclosure layer when the elongated reclosure layer is at least partially removed from the flexible film to expose the opening to the contents cavity. 34. The package of claim 1, wherein the pressure sensitive adhesive forms a peel strength between the flexible film layer and the elongated reclosure layer that is greater than the force required to separate the flexible film along the score. 35. The package of claim 1, wherein the tab score is formed to intersect with a separation cut that defines the leading edge of the package.
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