Pasteurization pouch with barrier

Patent metadata

Field	Value
Publication number	US-11912486-B2
Application number	US-202218071433-A
Country	US
Kind code	B2
Filing date	Nov 29, 2022
Priority date	Oct 18, 2019
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A package comprising a first panel defining a first end, a second end opposite the first end, and at least two side edges; a second panel defining a first end, a second end opposite the first end, and at least two side edges, wherein the second panel is connected to the first panel via longitudinal seams formed along respective side edges of the first and second panels; and at least one end seam formed along at least one of the first end or the second end of the first and second panels, wherein the at least one end seam comprises an outer edge; and a barrier coating disposed on an interior surface of at least one of the first and second panels, wherein the barrier coating does not extend to the side edges of the longitudinal seams or the outer edge of the at least one end seam.

First claim

What is claimed is:

1. A package comprising:
a first panel defining a first end, a second end opposite the first end, and at least two side edges;
a second panel defining a first end, a second end opposite the first end, and at least two side edges, wherein the second panel is connected to the first panel via longitudinal seams formed along respective side edges of the first and second panels; and
at least one end seam formed along at least one of the first end and the second end of the first and second panels, wherein the at least one end seam comprises an outer edge; and

a barrier coating disposed throughout an interior surface of at least one of the first and second panels, wherein the barrier coating does not extend into the longitudinal seams or into the at least one end seam.

2. The package of claim 1 , wherein the barrier coating comprises polyvinyl alcohol.

3. The package of claim 1 , wherein the first panel and the second panel each comprise a single sheet which is folded to form the package.

4. The package of claim 1 comprising two end seams, the first end seam disposed along the first end of the first and second panels and the second end seam disposed along the second end of the first and second panels.

5. The package of claim 1 additionally comprising a base panel which is connected to the first and second panels.

6. The package of claim 1 , wherein the first panel and the second panel each comprise the same material.

7. The package of claim 6 , wherein the first and second panel comprise a mono-polymeric material.

8. The package of claim 1 , wherein the longitudinal seams and end seam comprise heat seals.

9. A package comprising:
a first panel defining a first end, a second end opposite the first end, and at least two side edges;
a second panel defining a first end, a second end opposite the first end, and at least two side edges, wherein the second panel is connected to the first panel via
longitudinal seams formed along respective side edges of the first and second panels; and
at least one end seam formed along at least one of the first end and the second end of the first and second panels, wherein the at least one end seam comprises an outer edge; and

a barrier coating disposed throughout an interior surface of at least one of the first and second panels, wherein the package is barrier-free within the longitudinal seams and within the at least one end seam.

10. The package of claim 9 further comprising a base panel connecting at least part of the first panel to the second panel, such that the package is a stand-up pouch.

11. A method of manufacturing a package comprising:
providing a first panel defining a first end, a second end opposite the first end, and at least two side edges;
providing a second panel defining a first end, a second end opposite the first end, and at least two side edges;
designating longitudinal seam areas along respective side edges of the first and second panel;
designating at least one end seam area along an outer edge of at least one of the first end or the second end of the first and second panels;
coating a barrier material throughout an interior surface of at least one of the first and second panels, wherein the barrier material does not extend into the longitudinal seams or the at least one end seam;
sealing the first and second panels to form longitudinal seams in the longitudinal seam areas; and
sealing first and second panels to form at least one end seam in the at least one end seam area.

12. The method of claim 11 , additionally comprising a folding step before the sealing steps, wherein the first and second panels comprise a single sheet and are folded such that the side edges of the longitudinal seams align and the outer edge of the end seam for each panel aligns.

13. The method of claim 11 , additionally comprising pattern application of a heat-seal material to the longitudinal seam areas and the at least one end seam area.

14. The method of claim 11 , wherein the first and second panels comprise a polymer material which can be melt-sealed to itself.

Assignees

• Sonoco Dev Inc

Inventors

• Truitt Mary Katherine
• Taylor Donald Gregory

Classifications

• B65D75/20 Primary

  in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding · CPC title

• B65B25/001

  of foodstuffs, combined with their conservation (B65B25/041, B65B25/062, B65B25/067 take precedence) · CPC title

• B65B51/10

  Applying or generating heat or pressure or combinations thereof {(welding of plastics per se B29C65/02; closing plastic tube ends in general B29C57/10)} · CPC title

• B65B55/02

  Sterilising, e.g. of complete packages · CPC title

• B65D65/10

  rectangular · CPC title