Softer and higher strength paper products and methods of making such products
OwnerJay C. Hsu, Nauman N. Lakhaniinventors
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OwnerJay C. Hsu, Nauman N. Lakhaniinventors
Estimating the term…
A product and process of making an absorbent paper article such as paper products, towels, napkins and the like is disclosed. In the invention, one may supply a single furnish, or slurry, of cellulose fibers. Then, it is possible to separate or fractionate the slurry into at least two portions based upon fiber length in the slurry. Fines are employed in the process of manufacturing the products, and fines are specifically incorporated into an inner layer of the final paper products. Fines, short fibers, and/or fibrils are used in the process so they may contribute in a positive manner to the final paper product, rather than acting in a negative manner as a chemical “sponge” or waste material. This use of fines in the inner layers of the product reduces the manufacturing cost and waste produced in the process. A soft paper product with good strength characteristics results from the process.
A process of making an absorbent structure, comprising the steps of:
A method of making sanitary paper products from newspapers containing coarse cellulose fibers, comprising:
An absorbent paper product made by the process comprising:
A paper product comprising more than one ply, wherein each ply of the paper product comprises a plurality of layers, the paper products having at least one inner layer comprising short fibers and fines, the inner layer being formed by:
A paper product comprising more than one ply, wherein each ply of the paper product comprises a plurality of layers, the paper products having at least one inner layer comprising short fibers and fines, the inner layer being formed in part by fractionating a single furnish of cellulose fibers into separate slurries, the respective slurries being characterized by fibers of different length, wherein a first slurry is comprised of fines, the first slurry of fines being applied upon the upper surface of a paper sheet in a papermaking machine, the paper sheet being comprised in part of relatively long fibers, such that the fines adhere to the long fibers of the paper sheet, the paper sheet being combined with other paper sheets to form paper products.
Dependencies are inferred from the claim text.