Method of making a tetrahedron package
View Patent ↗A method of making tetrahedron packages having substantially uniform tear zones is disclosed. The method includes printing a first image at a first location of a sheet material and a second image at a second location of the sheet material, such that the first image is oriented 180° from and longitudinally arranged with respect to the second image. A tube is formed from the sheet material. The tube runs through a package forming machine to form a first tetrahedron package including the first image and a second tetrahedron package including the second image from the tube. The first tetrahedron package and the second tetrahedron package are connected by a seal zone. Substantially uniform tear zones are formed in the seal zone using a laser or a knife. The substantially uniform tear zones are at the same location with respect to a side edge of the first and second tetrahedron packages.
1. A method of making tetrahedron packages from a substrate with a foil layer, the package having substantially uniform tear zones comprising:
forming a tube from a sheet material including a first image printed at a first location and a second image printed at a second location along a sheet of material having a foil layer, such that the first image is oriented about 180° from the second image, and such that the first image and the second image are longitudinally aligned along the sheet material and adjacent to one another;
forming a first tetrahedron package including the first image and a second tetrahedron package including the second image from the tube, such that the first tetrahedron package and the second tetrahedron package are connected by a seal zone; and
forming substantially uniform tear zones in the first tetrahedron package and the second tetrahedron package,
wherein the substantially uniform tear zones are at the substantially same location with respect to an edge of the first tetrahedron package and an edge of the second tetrahedron package.
2. The method of claim 1 , wherein the sheet material includes a plastic layer.
3. The method of claim 2 , wherein said plastic layer is selected from the group consisting of oriented polypropylene film, low density polyethylene, polyethylene terephthalate and combinations thereof.
4. The method of claim 2 , further including loading a condiment in the first tetrahedron package and the second tetrahedron package.
5. The method of claim 4 , wherein the condiment is selected from the group consisting of ketchup, mustard, mayonnaise, relish and combinations thereof.
6. The method of claim 1 , wherein the tube has a longitudinal seam.
7. The method of claim 6 , wherein the longitudinal seam is a fin seal or an overlap seal.
8. The method of claim 1 , wherein the substantially uniform tear zones are arcuate.
9. The method of claim 1 , wherein the substantially uniform tear zone is about 8 mm to about 20 mm from the side edge of the first tetrahedron package and the second tetrahedron package.
10. The method of claim 1 , wherein the substantially uniform tear zone is about 8 mm to about 15 mm from the side edge of the first tetrahedron package and the second tetrahedron package.
11. The method of claim 1 , wherein a knife is used to form the substantially uniform tear zone.
12. The method of claim 11 , wherein the knife has staggered teeth.
13. The method of claim 1 , wherein a laser is used to form the substantially uniform tear zone.
14. A method of making tetrahedron packages having substantially uniform tear zones comprising:
forming a tube from a sheet of material including a first image printed at a first location and a second image printed at a second location along a sheet of material having a foil layer, such that the first image is oriented about 180° from the second image, and such that the first image and the second image are longitudinally aligned along the sheet material and adjacent to one another;
feeding said tube through a package forming apparatus;
forming a first seal zone in said tube below the first image to form a first sealed tube;
loading said sealed tube with a product;
forming a second seal zone in said sealed tube above a location of the product and above the first image to form a first tetrahedron package and a second sealed tube;
loading the second sealed tube with the product;
forming a third seal zone in said sealed tube above a location of the product and above the second image to form a second tetrahedron package; and
scoring the second seal zone to form substantially uniform tear zones in the first tetrahedron package and the second tetrahedron package,
wherein the substantially uniform tear zone of the first tetrahedron package and the tear zone of the second tetrahedron package are at the same location with respect to a side edge of the second seal zone.
15. The method of claim 14 , wherein the first seal zone, the second seal zone, and the third seal zone are heat sealed.
16. The method of claim 14 , wherein the product is a consumable product.
17. The method of claim 14 , wherein the consumable product is selected from the group consisting of ketchup, mustard, mayonnaise, relish and combinations thereof.
18. The method of claim 14 , wherein the second seal zone is oriented about 90° from the first seal zone.
19. The method of claim 14 , wherein the third seal zone is oriented about 90° from the second seal zone.
20. The method of claim 14 , wherein the substantially uniform tear zone of the first tetrahedron package and the substantially uniform tear zone of the second tetrahedron package are arcuate.
21. The method of claim 14 , wherein the substantially uniform tear zone is about 8 mm to about 20 mm from the side edge of the first tetrahedron package and the second tetrahedron package.
22. The method of claim 14 , wherein the substantially uniform tear zone is about 8 mm to about 15 mm from the side edge of the first tetrahedron package and the second tetrahedron package.