LINER-BASED SHIPPING AND DISPENSING SYSTEMS
The present disclosure, in one embodiment, relates to a liner-based assembly having an overpack and a liner disposed within the overpack. The liner may be formed by blow molding a liner preform within the overpack to form a blow molded liner substantially conforming to the interior of the overpack and generally forming an interface with an interior of the overpack. The present disclosure, in another embodiment, relates to a liner-based assembly including a blow-molded overpack comprised of polyethylene terephthalate, a blow-molded liner disposed within the overpack, the liner comprised of a polymer material, wherein the overpack and liner have a combined wall thickness of about 0.3 mm or less, and a base cup configured to at least partially surround an exterior of the overpack. In some embodiments, the liner has a volume of up to about 4.7 liters and an empty weight of between about 260-265 grams.
1 . (canceled)
2 . A method for dual blow molding a liner and overpack, comprising:
molding an inner preform;
molding an outer preform;
heating said inner preform and said outer preform;
inserting said outer preform into a first mold after the step of heating;
blow molding said outer preform after the step of inserting said outer preform to form an overpack;
inserting said inner preform into said overpack; and
blow molding said inner preform within said overpack after the step of inserting said inner preform.
3 . The method of claim 2 , comprising stretching said outer preform immediately prior to the step of blow molding said outer preform.
4 . The method of claim 2 , comprising stretching said inner preform immediately prior to the step of blow molding said inner preform.
5 . The method of claim 2 , comprising removing said overpack from said first mold after the step of blow molding said outer preform.
6 . The method of claim 2 , wherein said overpack serves as a mold for said inner preform.
7 . The method of claim 2 , wherein said overpack formed in the step of blow molding said outer preform is absent a bottom vent.
8 . The method of claim 2 , wherein said inner preform is formed of one of a polyolefin and a polyester.
9 . The method of claim 2 , wherein said inner preform is formed of polyethylene naphthalate (PEN).
10 . The method of claim 2 , wherein said inner preform is formed of polyethylene terephthalate (PET).
11 . The method of claim 10 , wherein said outer preform is formed of PET.