Hemp paper packaging material for foodstuff
AssigneeWm. Wrigley Jr. Company
InventorsPreeti Tyagi, Norman Lisson, Lokendra Pal, Mrittika Debnath, Roman Sarder
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Abstract
Sustainable paper-based packaging materials, e.g., paper-based food packaging materials, are described. The packaging materials are based on paper formed from fiber derived from waste biomass, such as hemp hurds, mixes containing hemp hurds and hemp bast fibers, bagasse, and cocoa pod husks. Also described are methods of making the packaging materials. The methods can include environmentally friendly pulping and/or bleaching processes.
Claims15
A food packaging material comprising a sheet or web comprising papermaking fibers derived from a waste biomass, wherein the waste biomass includes cocoa waste biomass and one or more of milkweed floss, pineapple leaf fibers, or sabai grass, wherein the papermaking fibers comprise autohydrolyzed fibers, and wherein the sheet or web has an air resistance of at least about 100 Gurley seconds (Gs) and basis weight of less than 300 grams per square meter (g/m2), the sheet or web being 100% biodegradable.
Dependencies are inferred from the claim text.