Container and method of manufacture
A method for manufacturing a food and/or beverage packaging container is provided. The method includes injection molding a preform using a two phase injection system. A first phase of the two phase injection system includes injecting a first material into the preform and a second phase of the two phase injection system includes injecting a second material into the preform. The method further includes disposing the preform in a mold, blow molding the preform into an intermediate article having a length, a diameter and side walls having a wall thickness, and trimming the intermediate article to form a finished container having a wide mouth neck. Systems and finished products are disclosed.
1. A method for manufacturing a food and/or beverage packaging container, the method comprising the steps of:
injection molding a preform using a two phase injection system, wherein a first phase of the two phase injection system comprises injecting a first material into the preform and a second phase of the two phase injection system comprises injecting a second material into the preform;
disposing the preform in a mold;
blow molding the preform into an intermediate article having a length, a diameter and side walls having a wall thickness; and
trimming the intermediate article to form a finished container having a wide mouth neck, wherein trimming the intermediate article forms the finished container and produces scrap material, the finished container comprising the first material and the scrap material comprising the second material, the scrap material being free of the first material.
2. A method as recited in claim 1 , wherein the first material is different than the second material.
3. A method as recited in claim 1 , wherein the first material is virgin polyethylene terephythalate (PET) and the second material comprises PET and at least one additive.
4. A method as recited in claim 3 , wherein the at least one additive comprises at least one of a group consisting of passive oxygen scavengers, active oxygen scavengers, colorants, calcium carbonate fillers and foaming agents.
5. A method as recited in claim 1 , wherein the first material consists of polyethylene terephythalate (PET) and the second material comprises PET and at least one additive.
6. A method as recited in claim 5 , wherein the at least one additive comprises at least one of a group consisting of passive oxygen scavengers, active oxygen scavengers, colorants, calcium carbonate fillers and foaming agents.
7. A method as recited in claim 1 , wherein the finished container is free of the second material.
8. A method as recited in claim 1 , wherein the method further comprises using the scrap material to manufacture a second food and/or beverage packaging container.
9. A method as recited in claim 1 , wherein the second phase occurs after the first phase is completed.
10. A method as recited in claim 1 , wherein trimming the intermediate article includes a spin trim operation to remove a dome from the intermediate article.
11. A method for manufacturing food and/or beverage packaging containers, the method comprising the steps of:
producing a first finished container by:
injection molding a first preform using a two phase injection system, wherein a first phase of the two phase injection system comprises injecting a first material into the first preform and a second phase of the two phase injection system comprises injecting a second material into the first preform,
disposing the first preform in a mold,
blow molding the first preform into a first intermediate article having a length, a diameter and side walls having a wall thickness, and
trimming the first intermediate article to form the first finished container and produce scrap material, the first finished container having a wide mouth neck, the first finished container comprising the first material and the scrap material comprising the second material, the scrap material being free of the first material; and
producing a second finished container by:
injecting the scrap material into a second preform,
disposing the second preform in a mold,
blow molding the second preform into a second intermediate article having a length, a diameter and side walls having a wall thickness, and
trimming the second intermediate article to form the second finished container.
12. A method as recited in claim 11 , wherein the first material is different than the second material.
13. A method as recited in claim 11 wherein the first material is virgin polyethylene terephythalate (PET) and the second material comprises PET and at least one additive.
14. A method as recited in claim 13 , wherein the at least one additive comprises at least one of a group consisting of passive oxygen scavengers, active oxygen scavengers, colorants, calcium carbonate fillers and foaming agents.
15. A method as recited in claim 11 , wherein the first material consists of polyethylene terephythalate (PET) and the second material comprises PET and at least one additive.
16. A method as recited in claim 15 , wherein the at least one additive comprises at least one of a group consisting of passive oxygen scavengers, active oxygen scavengers, colorants, calcium carbonate fillers and foaming agents.
17. A method as recited in claim 11 , wherein the second phase occurs after the first phase is completed.
18. A method for manufacturing food and/or beverage packaging containers, the method comprising the steps of:
producing a first finished container by:
injection molding a first preform using a two phase injection system, wherein a first phase of the two phase injection system comprises injecting a first material into the first preform and a second phase of the two phase injection system comprises injecting a second material into the first preform,
disposing the first preform in a mold,
blow molding the first preform into a first intermediate article having a length, a diameter and side walls having a wall thickness, and
trimming the first intermediate article to form the first finished container and produce scrap material, the first finished container having a wide mouth neck; and
producing a second finished container by:
injecting the scrap material into a second preform,
disposing the second preform in a mold,
blow molding the second preform into a second intermediate article having a length, a diameter and side walls having a wall thickness, and
trimming the second intermediate article to form the second finished container,
wherein the first finished container comprises the first material and the scrap material comprises the second material, the scrap material being free of the first material and the finished container being free of the second material.
19. A method as recited in claim 18 , wherein the first material consists of polyethylene terephythalate (PET) and the second material comprises PET and at least one additive.
20. A method as recited in claim 19 , wherein the at least one additive comprises at least one of a group consisting of passive oxygen scavengers, active oxygen scavengers, colorants, calcium carbonate fillers and foaming agents.