Abstract: A folded moisture and heat resistant container is manufactured of a material of laminate type in the form of a sheet or a web, said laminate comprising at least a base layer (1), an outer coating (2) and an inner coating (3). The material is at least on one side thereof heat treated in an autoclave. In the material the case layer (1) consists of a liquid absorbing material, the outer coating (2) consists of a polymer selected from the group including polypropylene, oriented polypropylene, metalized high density polyethylene, linear low density polyethylene, unmodified polyester, metalized polyester and amorphous polyester, and the inner coating (3) consists of a polymer selected from the group including polypropylene, high density polyethylene, linear low density polyethylene, unmodified amorphous polyester.

Abstract: A method for manufacturing a dimensionally stable and impermeable packaging container from a laminate comprising at least a thermoformable base layer devoid of liquid or moisture soaking properties, a barrier layer and, adjacent to the barrier layer, a laminate layer directed towards the inside of the container. The layers are partially adhered together in a first step to form a laminate. The container is given its desired shape by folding the laminate Subsequently the folded container is heat treated by subjecting it to autoclaving or hot filling in order to increase the adhesion between the layers and to impart mechanical rigidity to the container.

Abstract: A folded moisture and heat resistant container is manufactured of a material of laminate type in the form of a sheet or a web, said laminate comprising at least a base layer (1), an outer coating (2) and an inner coating (3). The material is at least on one side thereof heat treated in an autoclave.

Abstract: A method for manufacturing a dimensionally stable and impermeable packaging container from a laminate comprising at least a thermoformable base layer devoid of liquid or moisture soaking properties, a barrier layer and, adjacent to the barrier layer, a laminate layer directed towards the inside of the container. The layers are partially adhered together in a first step to form a laminate. The container is given its desired shape by folding the laminate. Subsequently the folded container is heat treated by subjecting it to autoclaving or hot filling in order to increase the adhesion between the layers and to impart mechanical rigidity to the container.

Abstract: A folded moisture and heat resistant container is manufactured of a material of laminate type in the form of a sheet or a web, said laminate comprising at least a base layer (1), an outer coating (2) and an inner coating (3). The material is at least on one side thereof heat treated in an autoclave.

Abstract: The invention relates to a method for fastening a barrier layer to an adjacent laminate layer in a package material. The fastening is performed by a partial adhesive being achieved in a first step and is completed by means of heat treatment in a subsequent step.