BAG, PARTICULARLY RE-BAKING BAG, MADE OF GLASSINE PAPER OR CELLULOSE PAPER WITH A FLUORINE COATING

• US 20130084374A1
• Filed: 09/28/2012
• Published: 04/04/2013
• Est. Priority Date: 09/30/2011
• Status: Abandoned Application

• Current Assignee: Papier-Mettler Inhaber Michael Mettler E.K.
• Original Assignee: Papier-Mettler Inhaber Michael Mettler E.K.
• Inventors: Budday, Christian
• Application Number:
  US13/631,805
• Publication Number:
  US 20130084374A1
• Time in Patent Office: Days
• US Class Current: 426/394
• CPC Class Codes: B65D 31/00 Bags or like containers made of paper and having structural provision for thickness of contents with shock-absorbing properties B65D81/03
• CPC Class Codes: B65D 33/01 Ventilation or drainage of bags
• CPC Class Codes: B65D 33/04 Windows or other apertures, e.g. for viewing contents ventilation apertures B65D33/01; windows for level indication B65D33/004
• CPC Class Codes: Y10T 428/1307 Bag or tubular film [e.g., pouch, flexible food casing, envelope, etc.]

Abstract

A bag containing foods, particularly foods to be re-heated or cooked and/or bakery products which are pre-baked and/or need to be re-baked, with an essentially closed bottom end and an opposing opening end, comprises a front wall and a rear wall that are attached to each other, at least in one or more sections, directly or through side walls, in the region of their side edges and bottom edges. The front wall and/or the rear wall and optionally also at least one side wall, preferably all side walls, comprise or are made of glassine paper and/or cellulose paper with a single- or double-sided fluorine coating.

Claims

1. A bag for containing foods, comprising:

a closed bottom end;

an opposing opening end; and

a front wall and a rear wall that are attached to each other, at least in one or more sections, directly or through side walls, in the region of their side edges and bottom edges,

wherein the front wall and/or the rear wall comprise or are made of glassine paper and/or cellulose paper with a single- or double-sided fluorine coating.

2. The bag of claim 1, wherein the front wall and/or the rear wall essentially consist of glassine paper and/or cellulose paper with a single- or double-sided fluorine coating.

3. The bag of claim 1, wherein the front wall and/or the rear wall have perforations, at least in one or more sections.

4. The bag of claim 3, wherein the ratio of open surface formed by the perforations to the whole surface of the front wall ranges from 1/25 to 1/500, and/or the ratio of open surface formed by the perforations in the rear wall to the whole surface of the rear wall ranges from 1/25 to 1/500.

5. The bag according to claim 1, wherein the bag is configured for re-baking bakery products that are pre-baked and/or need to be re-baked, or for re-heating or cooking foods to be re-heated or cooked.

6. The bag according to claim 1, wherein the density of the glassine paper ranges from 0.8 to 2.0 g/cm³.

7. The bag according to claim 1, wherein the cellulose paper is based essentially completely on cellulose.

8. The bag according to claim 1, wherein the grammage of the glassine paper ranges from 20 to 150 g/m², and/or the thickness of the glassine paper ranges from 20 to 100 μ

m.

9. The bag according to claim 1, wherein the rear wall is formed, at least in one or more sections, of glassine paper, and wherein the front wall is formed in at least one first area of glassine paper and in at least one second area of a transparent or translucent plastic film.

10. The bag of claim 1, wherein the rear wall is formed, at least in one or more sections, of cellulose paper with a single- or double-sided fluorine coating, and wherein the front wall is formed in at least one first area of cellulose paper with a single- or double-sided fluorine coating and in at least one second area of a transparent or translucent plastic film.

11. The bag of claim 9, wherein the glassine paper is perforated.

12. The bag of claim 9, wherein the plastic film is a polypropylene film or a polyester film manufactured as a single- or multi-layer film in monoaxially or biaxially oriented form.

13. The bag according to claim 1, wherein the glassine paper is a single- or multi-layer glassine paper, or wherein the cellulose paper with a single- or double-sided fluorine coating is a single- or multi-layer cellulose paper.

14. The bag according to claim 1, wherein the glassine paper is a glassine paper that has not been surface treated, and/or wherein the cellulose paper with a single- or double-sided fluorine coating is essentially free of fluorosurfactants.

15. The bag according to claim 1, wherein:

the air permeance of the glassine paper according to the Bendtsen method (determined according to DIN EN 53120 T1-08.79) ranges from 5 to 30 ml/min;

the glassine paper is a glassine paper that has not been surface treated; and

the cellulose paper is based essentially completely on cellulose.

16. The bag according to claim 1, wherein at least one side wall comprises or is made of glassine paper and/or cellulose paper with a single- or double-sided fluorine coating.

17. The bag according to claim 1, wherein at least one side wall has perforations, at least in one or more sections.

18. The bag according to claim 1, wherein the rear wall is formed, at least in one or more sections, of glassine paper, and wherein the front wall is formed of a transparent or translucent plastic film, wherein the glassine paper and the plastic film are attached to each other with an adhesive, at least in one or more sections, in the region of overlapping contact surfaces.

19. The bag according to claim 1, wherein the rear wall is formed, at least in one or more sections, of cellulose paper with a single- or double-sided fluorine coating, and wherein the front wall is formed of a transparent or translucent plastic film, wherein the cellulose paper with a single- or double-sided fluorine coating and the plastic film are attached to each other with an adhesive, at least in one or more sections, in the region of overlapping contact surfaces.

20. The bag of claim 9, wherein the plastic film is perforated.

21. The bag of claim 9, wherein the plastic film is a polypropylene film or a polyester film manufactured as a single- or multi-layer film in monoaxially or biaxially oriented form.

22. The bag of claim 10, wherein the cellulose paper with a single- or double-sided fluorine coating is perforated.

23. The bag of claim 10, wherein the plastic film is perforated.

24. The bag of claim 10, wherein the plastic film is a polypropylene film or a polyester film manufactured as a single- or multi-layer film in monoaxially or biaxially oriented form.

25. A method of using a bag containing food, comprising:

obtaining a bag containing food, wherein the bag comprises a closed bottom end, an opposing opening end, a front wall, and a rear wall, wherein the front wall and rear wall are attached to each other, at least in sections, directly or through side walls, in the region of their side edges and bottom edges, and wherein the front wall and/or the rear wall comprise or are made of glassine paper and/or cellulose paper with a single- or double-sided fluorine coating; and

baking, re-baking, cooking, or re-heating the bag containing food.