Paperboard
AssigneeWestvaco Corporation
InventorsNipun Marwah, David R. B. Walker, Ramazan Benrashid, Louie R. Hancock, Harry W. Robertson IV, Bruce T. Wright
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Abstract
The present invention discloses an improved paperboard for use in food or non-food products. The disclosed board utilizes a novel method of applying adsorptive material to packaging paperboard to overcome emissions (by adsorption thereof) of odiferous manufacturing components from the board, as well as any offensive odors emitted by contents of packages made from the board. The disclosed approach utilizes known adsorptive materials, which are applied to the pulp stock in such a manner that it does not negatively impact either the appearance or physical attributes of the finished board.
Claims17
A paperboard useful in paper-based packages or containers for holding liquids or solids comprising a sub-surface layer of an adsorbent material to reduce inherent board odor with essentially no reduction in strength of the parent board.
A method of preparing paperboard produced from pulp stock and useful in paper-based packages or containers for holding liquids or solids comprising adding an adsorbent material to the pulp stock to provide a sub-surface layer of said adsorbent material within the paperboard.
Dependencies are inferred from the claim text.