Method for making reclosable package having an accessible zipper
View Patent ↗A reclosable package includes a tray, a top sheet, and a fastener. The tray has a well for receiving contents and a peripheral flange surrounding the well. The top sheet is attached to the peripheral flange. The fastener has two interlocking members, one attached to the peripheral flange and the other attached to the top sheet. A tamper-evident feature located on the package prevents access to the fastener and is connected thereto by one or two lines of weaknesses. In one embodiment with one or two lines of weakness in the top sheet, the fastener remains adjacent to the tray's peripheral flange, which is intact after the tamper-evident feature is removed by tearing along these lines of weakness. In a second embodiment with two lines of weakness, the tamper-evident feature, comprised of portions of the peripheral flange and the top sheet, is torn from the package along both lines of weakness.
1. A method of making a reclosable package, comprising:
providing a formable material with at least one well formed therein;
placing product within the well;
placing a fastener on said formable material adjacent to the well, the fastener including first and second interlocking members;
applying a top sheet over said well and said fastener, said top sheet including a first line of weakness that is located proximate the fastener;
sealing said top sheet to said formable material to form a first seal along a portion of a perimeter of the well and a second seal proximate a length of the fastener and spaced apart from the first seal; and
attaching said fastener to said top sheet and said formable material.
2. The method of claim 1 , further comprising forming a hermetic seal with said product within said well.
3. The method of claim 1 , further comprising providing a tamper-evident seal between the interlocking members of the fastener and the well, said tamper-evident seal and the first seal forming a hermetic seal.
4. The method of claim 3 , further including substantially evacuating air from said well around said product.
5. The method of claim 1 , wherein the first seal is generally continuous around less than the entire periphery of the well.
6. The method of claim 1 , wherein the second seal is generally continuous.
7. The method of claim 1 , wherein the second seal comprises a peelable seal.
8. The method of claim 7 , wherein the first line of weakness defines a removable portion of the top sheet between the first line of weakness and the second seal.
9. The method of claim 1 , wherein the formable material further comprises a second line of weakness to define a removable portion between the first line of weakness and the second line of weakness, and further wherein at least one of the first line of weakness and the second line of weakness is located on a side of the fastener opposite the well.
10. The method of claim 9 , wherein both the first line of weakness and the second line of weakness are one the side of the fastener opposite the well.
11. The method of claim 1 , wherein the top sheet further comprises a second line of weakness to define a removable portion of the top sheet between the first line of weakness and the second line of weakness.
12. The method of claim 11 , wherein the top sheet is applied over the well and the fastener such that a portion of the top sheet remains intact to cover the fastener upon removal of the removable portion of the top sheet between the first line of weakness and the second line of weakness.
13. The method of claim 11 , wherein the top sheet is applied over the well and the fastener such that the fastener is not completely exposed upon removal of the removable portion of the top sheet between the first line of weakness and the second line of weakness.
14. The method of claim 1 , further comprising forming a second line of weakness in the formable material.
15. The method of claim 14 , wherein the fastener is placed on the formable material between the second line of weakness and the well.
16. The method of claim 1 , further comprising forming a recess in the formable material, and wherein placing a fastener on said formable material adjacent to the well comprises placing the fastener proximate the recess.
17. The method of claim 16 , wherein the fastener includes a slider, the slider being disposed in the recess.
18. The method of claim 16 , further comprising forming a second line of weakness in the formable material on a side of the recess opposite the well.
19. The method of claim 18 , wherein the top sheet is applied over the well and the fastener such that the first line of weakness is located on the side of the recess opposite the well.
20. The method of claim 1 , wherein the top sheet is applied over the well and the fastener such that a portion of the top sheet remains intact to cover the fastener upon tearing the first line of weakness.
21. The method of claim 1 , wherein the formable material is a polymeric material.