Package closure for withstanding internal forces
A reclosable package comprises a first panel having first and second side sections and a second panel having first and second side sections. The first panel opposes the second panel and is joined to the second panel along the first and second side sections. A bottom extends between the first and second side sections of the first and second panels with the first and second panels joined to each other. A mouth is disposed opposite the bottom and extends between the first and second side sections of the first second panels. A closure member extends along the mouth, with the closure member including a first fin joined to the first panel and second fin joined to the second panel. A sealing member having a first and second ends is disposed proximate the mouth. The ends of the sealing member can be attached to the fin or panel such that at least one of the first end or second ends of the sealing member is attached with peelable seal.
1. A process for forming, filling, and sealing a package through the bottom comprising:
providing at least one web of material;
forming from the at least one web of material a first panel including a first side, a second side, a top and a bottom, and a second panel including a first side, a second side, a top and a bottom;
positioning the first panel in opposite relationship to the second panel;
joining the first panel to the second panel along the first and second sides to define a package interior having a mouth disposed proximate the bottom of each of the first and second panels and side edges defined along the first and second sides, wherein a package width is defined between the side edges;
attaching a closure assembly extending along the top of each of the first and second panels, including attaching a first fin having a first portion of a reclosable fastener to an exterior surface of the first panel and attaching a second fin having a second portion of the reclosable fastener to an exterior surface of the second panel;
attaching a sealing member defined by a separate web having a first end and a second end and an intermediate portion therebetween, including attaching the first end to the first fin at a location between the top of the first panel and the first portion of the reclosable fastener and attaching the second end to the second fin at a location between the top of the second panel and the second portion of the reclosable fastener, with the intermediate portion extending from the first and second ends in a direction opposite the bottom of each of the first and second panels, wherein at least one of the first end or second end is attached with a peelable seal, the peelable seal extending between the side edges a distance less than the package width;
inserting a product through the mouth, whereby the sealing member is configured to shield the closure assembly from a load applied by the product; and
joining the first panel to the second panel along the mouth to close the product within the package interior.
2. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the first end of the sealing member is attached to the first fin with the peelable seal, and the second end of the sealing member is attached to the second fin with a lock-up seal.
3. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the first end of the sealing member is attached to the first fin with the peelable seal, and the second end of the sealing member is attached to the second fin with a second peelable seal.
4. The process for forming, filling, and sealing a package through the bottom of claim 1 , further comprising a membrane having a first end attached to the first fin and a second end attached to the second fin, with a line of weakness formed at a point between the first and second ends.
5. The process for forming, filling, and sealing a package through the bottom of claim 4 , wherein the membrane is disposed below the sealing member.
6. The process for forming, filling, and sealing a package through the bottom of claim 4 , wherein the membrane is disposed above the sealing member.
7. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the sealing member can be removed from the reclosable package.
8. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the peelable seal is formed by adhesives, heat-seal, or ultrasonic bonding.
9. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein at least a portion of at least one fin includes a co-ex material.
10. The process for forming, filling, and sealing a package through the bottom of claim 9 , wherein terminal ends of at least a portion of the first and second fins which are attached to the panels include a co-ex material.
11. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the sealing member, panels, and fins are discrete structures.
12. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein a lower portion of the first fin is attached to the first panel with a lock-up seal.
13. The process for forming, filling, and sealing a package through the bottom of claim 1 , wherein the second fin is attached to the second panel with a lock-up seal.