Method of manufacturing product filled containers

摘要

A method for forming a plastic container in which a heated end product is introduced into a heated preform to expand the preform into at least partial conform with the cavity surfaces of a mold, thereby forming a resultant container, of a first size, with a heated end product. The resultant container is then capped and shrunk to a second size, which is less than the first size. The shrinkage of the reluctant container is greater than the shrinkage of the end product thereby creating a positive pressure within the capped container.

主权项

1. A method for forming a plastic container, the method comprising the steps of: providing a plastic preform;
heating the preform; locating the preform within a mold, the mold having cavity surfaces defining a cavity shape generally corresponding to a desired shape of the container; heating an end product to an elevated temperature, the elevated temperature being above ambient temperature; introducing the heated end product into the heated preform to at least partially cause the heated preformed to expand into contact with the cavity surfaces and to conform with the shape of the cavity, thereby forming a resultant container filled with the heated end product, the resultant container having a first size; removing the resultant container filled with the heated end product from within the mold; capping the resultant container with the heated end product therein to form a capped container; shrinking the capped container to a second size, the second size being smaller than the first size, including the step of modulating the shrinkage of the container with latent heat of the heated end product.