Process for packaging goods in a steam atmosphere
AssigneeAB Akerlund & Rausing
InventorsFolke Kiellarson, Sven Roos, Thomas Quist
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Abstract
The invention concerns packaging a food product in an atmosphere of steam into a container one part of which is cupped, the cupping of the package being effected by means of steam. The invention also relates to an apparatus for carrying out the packaging method.
Claims12
In a method of forming containers from a web of thermodeformable material and for filling and sealing said containers under aseptic conditions in an apparatus having a chamber in which forming, filling and sealing steps are carried out, the improvement comprising introducing steam at a super-atmospheric pressure into the chamber and onto a surface of the web for softening the web and for molding said web into a cup-shaped mold, said steam passing throughout said chamber to displace substantially all of the air therein and to maintain aseptic conditions during the forming, filling and sealing of the containers.
In an apparatus for forming, filling and sealing, under aseptic conditions, packaging containers from a web of a thermodeformable material, which apparatus includes an enclosed chamber and sequential means for forming, filling and sealing said containers within said chamber, said forming means including a mold, the improvement comprising means for supplying steam at super-atmospheric pressure into said chamber and onto the surface of said web at a point adjacent said forming means to heat the web of thermodeformable material to its softening temperature and to form in said mold a container of said thermodeformable material, said steam displacing substantially all of the air within said chamber to maintain aseptic conditions therein during filling and sealing of the containers.
Dependencies are inferred from the claim text.