Inflatable packaging with adhesive seals

Patent metadata

Field	Value
Publication number	US-10112741-B2
Application number	US-201514937857-A
Country	US
Kind code	B2
Filing date	Nov 10, 2015
Priority date	Nov 10, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

An inflatable packaging element is provided herein. The inflatable packaging element comprises first and second film plies sealed to each other by a seal to cooperatively form a flexible structure. The seal defines an inflation chamber between the first and second plies that is inflatable with and configured to contain a fluid. The seal is formed using an adhesive.

First claim

What is claimed is:

1. An inflatable packaging element, comprising:
first and second film plies sealed to each other by a seal pattern to cooperatively form a flexible structure;
wherein the seal pattern includes an adhesive seal and a heat seal and defines between the first and second plies:
a plurality of inflation chambers that are inflatable with and configured to contain a fluid, each of the chambers defining an opening configured to receive the fluid into the chamber; and
an inflation region that extends along the plies and is fluidly connected with the openings to inflate the chambers therethrough;

wherein the heat seal and the adhesive seal intersect.

2. The inflatable packaging element of claim 1 , wherein the adhesive is a UV curable adhesive.

3. The inflatable packaging element of claim 1 , wherein the adhesive has a Brookfield Viscosity between about 700-1000 cps at 77 degrees Fahrenheit.

4. The inflatable packaging element of claim 1 , wherein the inflation region is a channel having an enclosed periphery.

5. The inflatable packaging element of claim 1 , wherein the seal pattern defining the plurality of inflation chambers extends generally transversely across the plies.

6. The inflatable packaging element of claim 1 , wherein the inflation region is an open lateral edge defining at least one flap.

7. The inflatable packaging element of claim 1 , wherein the inflation region is open to an exterior of the packaging element to receive the fluid and direct the fluid to the openings.

8. The inflatable packaging element of claim 1 , wherein the heat seal is applied over and across the adhesive seal.

9. The inflatable packaging element of claim 1 , wherein a portion of the seal pattern that defines the inflation chambers includes the intersection of the heat seal and the adhesive seal.

10. The inflatable packaging element of claim 1 , wherein a heat seal applied across the openings of the chambers seals the chambers from the inflation region, thereby crossing over the adhesive seal.

11. The inflatable packaging element of claim 10 , wherein the openings of the chambers are generally aligned longitudinally and the heat seal is applied longitudinally.

12. A method of producing an inflatable packaging element, comprising:
adhering together first and second film plies to provide a seal pattern therebetween, such that the plies cooperatively form a flexible structure, the seal pattern being formed at least partially using an adhesive configured such that the seal pattern defines a plurality of inflation chambers between the first and second plies that are inflatable with and configured to contain a fluid, and
heat sealing the plies across the adhesive of the seal pattern to seal the inflation chambers to retain the fluid therein.

13. The method of claim 12 , further comprising curing the adhesive with a UV light.

14. The method of claim 12 , wherein the seal pattern defines an inflation region that is fluidly connected to the inflation chambers to inflate the chambers, and the plies are heat sealed across the adhesive of the seal pattern to seal the inflation chambers from the inflation region.

15. The method of claim 14 , further comprising inflating the inflation chamber with fluid that enters from the inflation region.

16. The method of claim 14 , wherein the inflation region extends longitudinally along the plies and the seal pattern defining the inflation chamber extends generally transversely across the plies.

17. The method of claim 12 , wherein the seal pattern is constructed substantially of adhesive.

18. An inflatable packaging element, comprising:
a first wall defined by a first film ply and a second film ply that is sealed to the first ply by one or more ply seals, wherein the one or more ply seals define an inflation chamber between the first and second plies, and wherein the inflation chamber is inflatable with and configured to contain a fluid;
a second wall; and
one or more wall seals that seal the second wall to the first wall on a side of the first wall exterior to the chamber to form a container and define a containment space between the first and second walls to receive an article therein,
wherein at least a first seal of the one or more ply seals or the one or more wall seals is formed using an adhesive, and a second seal of the one or more ply seals or the one or more wall seals is formed by heat sealing across said first seal.

19. The inflatable packaging element of claim 18 , wherein the adhesive is a UV curable adhesive.

20. The inflatable packaging element of claim 18 , wherein the one or more ply seals are formed using the adhesive.

21. The inflatable packaging element of claim 18 , wherein the one or more wall seals are formed using a heat-sealing technique.

22. The inflatable packaging of claim 18 , wherein the adhesive has a Brookfield Viscosity between about 700-1000 cps at 77 degrees Fahrenheit.

23. The inflatable packaging element of claim 18 , wherein the second wall is defined by third and fourth film plies connected to each other at another one or more another ply seals that define therebetween another inflation chamber that is inflatable with and operable to contain the fluid.

24. The inflatable packaging element of claim 18 , wherein the first and second film plies form a continuous wall, and wherein the first wall and the second wall are formed by folding the continuous wall in a c-fold.

25. The inflatable packaging element of claim 18 , comprising at least one intermediate seal between the first film ply and the second film ply, the at least one intermediate seal configured to create a bendable line in the inflation chamber when the chamber is inflated.

26. The inflatable packaging element of claim 18 , wherein the one or more wall seals define a boundary on three sides of the containment space and one side of the space is open.

27. The inflatable packaging element of claim 18 , wherein at least one of the one or more ply seals is formed using an adhesive and at least one of the one or more wall seals is formed using heat.

28. The inflatable packaging element of claim 18 , wherein at least one of the one or more ply seals is formed using heat and at least one of the one or more wall seals is formed using an adhesive.

29. A method of producing an inflatable packaging element, comprising:
sealing a first film ply and a second film ply together with one or more ply seals to form an inflation chamber therebetween and create a first wall;
inflating the inflation chamber with a fluid such that the fluid is contained within the inflation chamber, and
sealing the first wall to a second wall with one or more wall seals on a side of the first wall that is exterior to the chamber to form a bag that defines an interior containment space between the first and second walls to receive an article therein; and
wherein at least a first seal of the one or more ply seals or the one or more wall seals is formed using an adhesive, and a second seal of the one or more ply seals or the one or more wall seals is formed by heat sealing across said first seal.

30. The method of claim 29 , further comprising curing the adhesive with a UV light.

31. The method of claim 29 , wherein the one or more ply seals are formed using the adhesive.

32. The method

Assignees

• Pregis Innovative Packaging Llc

Inventors

• Wetsch Thomas D

Classifications

• B65D33/008

  Individual filled bags or pouches connected together (B65D33/001, B65D33/002 take precedence) · CPC title

• B65D85/34

  for fruit, e.g. apples, oranges or tomatoes · CPC title

• A23V2002/00

  Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title

• B29C65/48

  using adhesives {, i.e. using supplementary joining material; solvent bonding} · CPC title

• B65D33/01 Primary

  Ventilation or drainage of bags · CPC title