Multi-density tissue towel products comprising high-aspect-ratio cellulose filaments
AssigneeMercer International Inc.
InventorTobias Ziegenbein
Life of this patent
Estimating the term…
Abstract
An absorbent towel paper web product produced by a paper making process that introduces differential density within the fibrous web and comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the paper web product with cellulose nanofilaments.
Claims26
An absorbent towel paper web product produced by a paper making process, said absorbent towel paper web product comprising:
- a) a fibrous web having a differential density;
- and,
- b) wherein said fibrous web comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of said absorbent towel paper web product with cellulose nanofilaments;
- wherein said cellulose nanofilaments comprise high aspect ratio cellulose nanofilaments and at least about 5% cellulosic fines.
A soft sanitary tissue paper web product produced by a paper making process, said soft sanitary tissue paper web product comprising:
- a) a fibrous web having a differential density;
- and,
- b) wherein said fibrous web comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the soft sanitary tissue paper web product with cellulose nanofilaments;
- wherein said cellulose nanofilaments comprise high aspect ratio cellulose nanofilaments and at least about 5% cellulosic fines.
An absorbent towel paper web product produced by a paper making process, said absorbent towel paper web product comprising:
- a) a fibrous web having a differential density;
- b) wherein said fibrous web comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of the absorbent towel paper web product of a blend of micro- and nano-cellulose filaments;
- and,
- c) wherein said blend comprises:
- i) at least about 40% cellulose nanofilaments;
- ii) at least about 10% intact fibrillated fibers;
- and,
- iii) at least about 5% cellulosic fines.
A soft sanitary tissue paper web product produced by a paper making process, said soft sanitary tissue paper web product comprising:
- a) a fibrous web having a differential density;
- b) wherein said fibrous web comprises from about 0.05 percent to about 20.0 percent by weight of the dry fiber basis of said soft sanitary tissue paper web product of a blend of micro- and nano-cellulose filaments;
- and,
- c) wherein said blend comprises:
- i) at least about 40% cellulose nanofilaments;
- ii) at least about 10% intact fibrillated fibers;
- and,
- iii) at least about 5% cellulosic fines.
Dependencies are inferred from the claim text.