RESEALABLE FOOD BAGS AND METHOD THEREOF

• US 20090053372A1
• Filed: 08/23/2007
• Published: 02/26/2009
• Est. Priority Date: 08/23/2007
• Status: Abandoned Application

• Current Assignee: Covalence Adhesives, LLC
• Original Assignee: Covalence Adhesives, LLC
• Inventors: Hambrick, Samuel, Vanselow, Janice
• Application Number:
  US11/844,181
• Publication Number:
  US 20090053372A1
• Time in Patent Office: Days
• US Class Current: 426/125
• CPC Class Codes: C09J 2301/1242 the opposite adhesive layers being different
• CPC Class Codes: C09J 2423/006 in the substrate
• CPC Class Codes: C09J 2427/006 in the substrate
• CPC Class Codes: C09J 2467/006 in the substrate
• CPC Class Codes: C09J 7/385 Acrylic polymers
• CPC Class Codes: Y10T 428/1476 Release layer

Abstract

Embodiments of the present invention generally relate to resealable food bags utilizing an adhesive compound, and a method thereof. In one embodiment of the present invention, a resealable food stuff bag comprises a food stuff bag with an interior and an exterior, and an adhesive tape applied to the interior of the food bag, wherein the adhesive tape comprises a carrier with a first side and a second side, a layer of food-grade permanent adhesive applied to the first side of the carrier, and a layer of food-grade removable adhesive applied to the second side of the carrier.

Claims

1. An adhesive tape, comprising:

a carrier with a first side and a second side;

a layer of food-grade permanent adhesive applied to the first side of the carrier; and

a layer of food-grade removable adhesive applied to the second side of the carrier.

2. The adhesive tape of claim 1, wherein the adhesive tape has a width of at least one quarter of an inch.

3. The adhesive tape of claim 1, wherein the carrier has a thickness of about 0.5 mils.

4. The adhesive tape of claim 1, wherein the carrier comprises at least one of polyester, polyethylene, polyethylene-terephthalate, polypropylene, polyvinylidine chloride, polyvinylchloride, or polyolefin.

5. The adhesive tape of claim 1, wherein the food-grade permanent adhesive comprises at least a rubber or an acrylic food-grade adhesive compound.

6. The adhesive tape of claim 1, wherein the food-grade removable adhesive comprises a food-grade pressure sensitive adhesive compound.

7. The adhesive tape of claim 1, wherein the food-grade removable adhesive comprises a food-grade acrylic based adhesive compound.

8. The adhesive tape of claim 1, wherein the food-grade removable adhesive further comprises a tackifying resin.

9. The adhesive tape of claim 8, wherein the food-grade removable adhesive further comprises about 0.0 percent to about 15.0 percent by weight of the tackifying resin.

10. The adhesive tape of claim 8, wherein the food-grade removable adhesive further comprises about 2.5 percent by weight of the tackifying resin.

11. The adhesive tape of claim 8, wherein the tackifying resin is an aliphatic resin.

12. The adhesive tape of claim 8, wherein the tackifying resin is a rosin ester resin

13. The adhesive tape of claim 1, further comprising a release liner applied to an exposed side of the layer of food-grade permanent adhesive compound.

14. The adhesive tape of claim 13, wherein the release liner comprises at least one of polymeric film liners, paper liners, or board liners.

15. A method of forming an adhesive tape comprising:

providing a carrier;

applying a layer of food-grade permanent adhesive to a first side of the carrier; and

applying the layer of food-grade removable adhesive to the second side of the carrier.

16. The method of claim 15, further comprising applying the layer of food-grade permanent adhesive by coating the first side the carrier between about 16 pounds and about 40 pounds per ream.

17. The method of claim 16, further comprising applying the layer of food-grade permanent adhesive by coating the first side the carrier at about 27 pounds per ream.

18. The method of claim 15, further comprising applying the layer of food-grade removable adhesive by coating the second side the carrier between about 16 pounds and about 40 pounds per ream.

19. The method of claim 18, further comprising applying the layer of food-grade removable adhesive by coating the second side the carrier at about 27 pounds per ream.

20. The method of claim 15, further comprising processing the carrier such that the layer of food-grade removable adhesive compound is adhered by heat lamination to the carrier.

21. The method of claim 15, further comprising corona treating at least a side of the carrier.

22. The method of claim 15, further comprising drying the layer of food-grade removable adhesive at a temperature of about 225 degrees Fahrenheit.

23. The method of claim 22, further comprising drying the layer of food-grade removable adhesive for a time period of about two minutes.

24. The method of claim 15, further comprising:

applying the layer of food-grade permanent adhesive to a first side of a release liner material; and

drying the layer of food-grade permanent adhesive prior to applying the layer of food-grade permanent adhesive to the first side of the carrier.

25. The adhesive tape of claim 24, further comprising applying the layer of food-grade permanent adhesive by coating the first side of the release liner material at about 27 pounds per ream.

26. The adhesive tape of claim 24, further comprising drying the layer of food-grade permanent adhesive at a temperature of about 190 degrees Fahrenheit.

27. The adhesive tape of claim 26, further comprising drying the layer of food-grade permanent adhesive for a time period of about two minutes.

28. A resealable food bag comprising:

a food stuff bag with an interior layer and an exterior layer; and

an adhesive tape applied to the interior layer of the food bag, wherein the adhesive tape comprises;

a carrier with a first side and a second side;

a layer of food-grade permanent adhesive applied to the first side of the carrier; and

a layer of food-grade removable adhesive applied to the second side of the carrier.

29. The resealable food bag of claim 28, wherein the interior layer of the food bag comprises polypropylene.

30. The resealable food bag of claim 29, wherein the interior layer is at least partially metallized.