Packing material and method of manufacturing the packing material
A packing material including a plurality of discrete cushioning elements and methods for making the same. The discrete cushioning elements may be cellulosic cushioning elements. A flexible linkage may connect the plurality of discrete cushioning elements in the packing material. The packing material may also include a bottom cellulosic sheet connected to a top cellulosic sheet with the plurality of cellulosic cushioning elements positioned between the top cellulosic sheet and the bottom cellulosic sheet. The packing material may also be a molded packing material that includes bonds comprising adhesive and cellulosic fibers. The adhesive and cellulosic fibers of the bonds may be dispersed between the folds of each of the cellulosic cushioning elements.
1. A method of manufacturing molded packing material comprising:
filling a mold with a plurality of cellulosic cushioning elements;
applying an aqueous slurry of cellulosic fibers and adhesive to the plurality of cellulosic cushioning elements in the mold;
drying the aqueous slurry and the plurality of cellulosic cushioning elements to form a molded packing material; and
removing the molded packing material from the mold.
2. The method according to claim 1 , wherein each cellulosic cushioning element of the plurality of the cellulosic cushioning elements is one of (i) a crumpled cellulosic sheet and (ii) a cellulosic material formed into a geometric shape with at least one pocket of air formed therein.
3. The method according to claim 2 , wherein each cellulosic cushioning element of plurality of the cellulosic cushioning elements is a crumpled cellulosic sheet having a sphere-like shape.
4. The method according to claim 1 , wherein the adhesive of the aqueous slurry is a biodegradable adhesive.
5. The method according to claim 1 , further comprising placing a cellulosic sheet in the mold before filling a mold with the plurality of cellulosic cushioning elements.
6. The method according to claim 1 , further comprising placing a cellulosic sheet on an exposed surface of the plurality of the plurality of cellulosic cushioning elements after applying the aqueous slurry.