Flexible peelable/resealable package

Patent metadata

Field	Value
Publication number	US-10494148-B2
Application number	US-201515556706-A
Country	US
Kind code	B2
Filing date	Mar 27, 2015
Priority date	Mar 27, 2015
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

The present invention is directed to flexible peelable/resealable packages having a first wall panel which includes an abuse layer forming an exterior surface of the package with a printed release lacquer coating positioned on the abuse layer and a pressure sensitive adhesive coating positioned on the release lacquer coating which may be in direct contact with the sealant substrate forming a portion of the interior surface of the package.

First claim

What is claimed:

1. A flexible peelable/resealable package comprising:
a top end and a bottom end generally opposite the top end;
a first side edge and a second side edge generally opposite the first side edge;
a first wall panel having an interior surface and an exterior surface, and comprising:
a thermoplastic sealant substrate forming the interior surface of the first wall panel and having an area defined by a length extending between the top end and the bottom end and a width extending between the first side edge and the second side edge;
an abuse layer forming the exterior surface of the first wall panel and having an area contiguous with the area of the sealant substrate of the first wall panel;
a printed release lacquer coating positioned on the abuse layer and having an area defined by a truncated length relative to the length of the sealant substrate of the first wall panel and a width extending between the first side edge and the second side edge; and
a printed pressure sensitive adhesive coating positioned on the release lacquer coating and in direct contact with the sealant substrate of the first wall panel;

a second wall panel generally opposite the first wall panel having an interior surface and an exterior surface, and comprising;
a thermoplastic sealant substrate forming the interior surface of the second wall panel and having an area defined by a length extending between the top end and the bottom end and a width extending between the first side edge and the second side edge; and
an abuse layer in direct contact with the sealant substrate of the second wall panel and forming the exterior surface of the second wall panel, wherein the abuse layer has an area contiguous with the sealant substrate of the second wall panel;

a first closed position comprising a transverse fusion seal and a first continuous core-line in the first wall panel positioned entirely between the top end and a transverse fusion heat seal; wherein the transverse fusion seal is superimposed over the area of the release lacquer coating of the first wall panel extending between the first side edge and the second side edge, and joins a section of the sealant substrate of the first wall panel to a section of the sealant substrate of the second wall panel thereby enclosing a product within the package;
an open position where the first wall panel and the second wall panel are separated proximal to the top end, and comprising an exposed section of the release lacquer coating on the interior surface of the first wall panel and an exposed section of the pressure sensitive adhesive coating; wherein the exposed section of the pressure sensitive adhesive coating is a portion of the interior surface of the second wall panel produced when transitioning from the first closed position to the open position; wherein the first continuous score-line is removed upon transitioning from the first closed position to the open position; wherein the section of the sealant substrate of the first wall panel fusion sealed to the section of the sealant substrate of the second wall panel is transferred from the first wall panel to the second wall panel upon transitioning from the first closed position to the open position; and
a second closed position comprising an adhesive seal between the exposed section of the release lacquer coating on the interior surface of the first wall panel and the exposed section of the pressure sensitive adhesive coating on the portion of the interior surface of the second wall panel.

2. A package according to claim 1 , further comprises a second continuous score-line in the first wall panel positioned between the transverse fusion heat seal and the bottom end.

3. A package according to claim 2 , wherein the second continuous score-line in the first wall panel is generally parallel with the first score-line in the first wall panel.

4. A package according to claim 2 , wherein the first and second continuous score-lines both extend from the interior surface of the first wall panel through the sealant substrate.

5. A package according to claim 2 , wherein the first second continuous score-lines are both superimposed over the area of the release lacquer coating of the first wall panel.

6. A package according to claim 1 , further comprising a first longitudinal side seal positioned proximal to the first side edge extending from the top end to the bottom end, and a second longitudinal side seal positioned proximal to the second side edge extending from the top end to the bottom end.

7. A package according to claim 6 , further comprising a transverse end seal positioned proximal to the bottom end, and a longitudinal seal positioned between the first and second side edges and extending between the top edge and the bottom edge.

8. A package according to claim 1 , wherein the first wall panel further comprises a permanent adhesive layer positioned between the sealant substrate and the pressure sensitive adhesive coating and has an area contiguous with the area of the sealant substrate of the first wall panel.

9. A package according to claim 8 , wherein the first continuous score-line extends inward from the interior surface of the first wall panel through the sealant substrate and the permanent adhesive layer.

10. A package according to claim 9 , wherein the first wall panel further comprises a second continuous score-line positioned between the fusion seal and the bottom end wherein the first and second continuous score-lines both extend inward from the interior surface of the first wall panel through the sealant substrate and the permanent adhesive layer.

11. A package according to claim 1 , wherein the second wall panel further comprises a permanent adhesive layer positioned between the sealant substrate and the pressure sensitive adhesive coating and has an area contiguous with the area of the sealant substrate of the second wall panel.

12. A package according to claim 1 , wherein the sealant substrate of both the first and second wall panels each comprise a mono-layer film.

13. A package according to claim 12 , wherein the mono-layer film comprises a material selected from the group consisting of polyethylene, ethylene alpha-olefin copolymer, ethylene vinyl acetate copolymer, polypropylene and ionomer.

14. A package according to claim 1 , wherein the sealant substrate of both the first and second wall panels each comprise a multi-layer film.

15. A package according to claim 14 , wherein the multi-layer film comprises a heat sealable layer comprising a material selected from the group consisting of polyethylene, ethylene alpha-olefin copolymer, ethylene vinyl acetate copolymer, polypropylene and ionomer.

16. A package according to claim 14 , wherein the multi-layer film comprises a first oxygen barrier layer comprising ethylene vinyl alcohol copolymer.

17. A package according to claim 1 , wherein the abuse layer of both the first and second wall panels each comprise a material selected from the group consisting of polypropylene, polyester, polyamide and paper.

18. A package according to claim 17 , wherein the abuse layer is a biaxially oriented polypropylene, a biaxially oriented polyethylene terephthalate, or a biaxially oriented polyamide.

19. A package according to claim 1 , further comprising a flap to assist the transition from the first closed position to the open position which is positioned adjacent to the top end and comprises a section of the first wall panel unsealed to a section of the second wall panel.

20. A package according t

Assignees

• Bemis Co Inc

Inventors

• O'Hagan Brian R

Classifications

• B65D33/20 Primary

  using pressure-sensitive adhesive · CPC title

• B65D75/5855

  Peelable seals · CPC title