Method of producing molded paper pulp articles and articles produced thereby
AssigneeCin-Made Corporation
InventorsJoseph Kelley, James Parks, Robert Frey, Richard Reames, William Forester
Life of this patent
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Abstract
A method of manufacturing a molded paper pulp article from a fiber slurry involves the vacuum deposition of a layer of wet paper pulp onto a forming mold, the separation of the wet layer of paper pulp from the forming mold and the pressing and shaping of the layer of wet paper pulp at a solids content of from about 5 to 20 percent solids. A finished product molded paper article is prepared having improved surface appearance and detailing and improved mechanical and physical properties.
Claims11
A method of preparing a molded paper article comprising the steps of:
- preparing a slurry of paper pulp and water;
- inserting a foraminous mold into the slurry;
- pulling a vacuum on the foraminous mold so that a layer of wet paper pulp is deposited thereon;
- removing the foraminous mold with the deposited layer of wet paper pulp from the slurry;
- separating the deposited layer of wet paper pulp from the foraminous mold;
- and
- compressing the separated layer of wet paper pulp having an initial solids content of 5 to 20 weight percent in such a manner that the wet paper pulp is shaped into the form of the molded paper article and e water content thereof is reduced.
A method of preparing a molded paper article consisting essentially of the steps of:
- preparing a slurry of paper pulp and water;
- inserting a foraminous mold into the slurry;
- pulling a vacuum on the foraminous mold so that a layer of wet paper pulp is deposited thereon;
- removing the foraminous mold with the deposited layer of wet paper pulp from the slurry;
- separating the deposited layer of wet paper pulp from the foraminous mold;
- and
- compressing the separated layer of wet paper pulp having an initial solids content of 5 to 20 weight percent in such a manner that the wet paper pulp is shaped into the form of the molded paper article and water content thereof is reduced.
Dependencies are inferred from the claim text.