Process for producing autoclaved foodstuffs in a container formed from a flat composite having a colored cross-linked outer polymer layer obtainable by means of high pressure

Abstract

The invention relates to a process for the preparation of a closed container (3) which separates an interior space (1) from an environment (2) which is filled with food stuff from at least one sheetlike composite (7) which has at least one edge (4), comprising the steps: a) provision of the sheetlike composite (7), comprising a1. at least one outer crosslinked plastic colour layer (9) comprising a colour agent (20); a2. a carrier layer (6); and a3. a thermoplastic plastic layer (37); b) formation of the sheetlike composite (7) to obtain an open container (14), wherein the plastic colour layer (9) faces onto the environment (2) and the plastic layer (37) faces onto the interior space (1); c) filling of the open container (14) with a food stuff; d) closing of the open container (14) to obtain the closed, filled container (3); e) preservation of the food stuff in the closed, filled container (3) in a pressure chamber under a chamber pressure of more than 1 bar at a temperature in a range from more than 100 to 140° C. in the presence of steam.

Dependencies are inferred from the claim text.