Containers formed of a composite paperboard web and methods of f

Details Containers formed of a composite paperboard web and methods of f Containers formed of a composite paperboard web and methods of f

1997-11-20

2000-03-21

Kim, Eugene L.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493 84, 493 89, B31B 188

Patent

active

060396822

ABSTRACT:
Composite paperboard containers formed from a first substantially planar sheet of paperboard material having a content contacting surface and a back surface, a first embossed sheet of paperboard material having a plurality of raised portions adhered to the back surface of the first planar sheet and a second embossed sheet of paperboard material having a plurality of raised portions adhered to the first embossed sheet of paperboard material. Additional planar sheets or embossed sheets may be added as desired in order to achieve the desired flexural stiffness and thermal resistance. Such containers being in the form of cups, plates, bowls or trays and formed by providing the substantially planar sheet of paperboard material, forming the planar sheet of paperboard material into a container shell, providing a first embossed sheet of paperboard material having raised portions and adhering the raised portions of the first embossed sheet of paperboard material to the planar sheet of paperboard material, providing a second embossed sheet of paperboard material having raised portions and adhering the raised portions of the second embossed sheet of paperboard material to the first embossed sheet of paperboard material. Alternatively, the embossed sheets of paperboard material may be previously adhered to one another and subsequently adhered to the planar sheet of paperboard material.

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