SYSTEMS AND METHODS FOR PRODUCTION OF STARCH-LOADED FIBRILLATED FIBERS
A method of making a pulp composition having improved strength characteristics is disclosed. The method includes mixing together a starch and fibrillated fibers to produce a starch/fibrillated fibers mixture, and mixing the starch/fibrillated fibers mixture into wood pulp fibers to produce the pulp composition.
1 . A method of making a pulp composition, the method comprising:
mixing together a starch and fibrillated fibers to produce a starch/fibrillated fibers mixture; and
mixing the starch/fibrillated fibers mixture into wood pulp fibers to produce the pulp composition.
2 . The method of claim 1 , wherein the wood pulp fibers comprise one or more of hardwood pulp fibers, softwood pulp fibers, non-wood pulp, recycled pulp fibers, or combinations thereof.
3 . The method of claim 2 , further comprising:
depositing the pulp composition onto a web to form a substrate;
at least partially dewatering the substrate; and
drying the substrate to form a paper product.
4 . The method of claim 3 , wherein the fibrillated fibers comprise surface enhanced pulp fibers (SEPF).
5 . The method of claim 4 , wherein the paper product comprises approximately 0.1 to 2.5 weight percent starch, approximately 2 to 20 weight percent SEPF, and approximately 83 to 97 weight percent wood pulp fibers.
6 . The method of claim 5 , wherein the paper product comprises approximately 0.4 to 2.0 weight percent starch, approximately 3 to 17 weight percent SEPF, and approximately 83 to 97 weight percent wood pulp fibers.
7 . The method of claim 6 , wherein the paper product has a Breaking Length of at least approximately 7.0 km.
8 . The method of claim 7 , wherein the paper product has a Tensile Energy Absorption (TEA) of at least approximately 110 J/m 2 .
9 . The method of claim 8 , wherein the paper product has a Tear Index of less than at least approximately 9.6 mN·m 2 /g.
10 . The method of claim 4 , wherein the paper product comprises approximately 0.8 percent starch, approximately 10 percent SEPF, and approximately 90 percent wood pulp fibers.
11 . The method of claim 10 , wherein the paper product has a Breaking Length of at least approximately 7.0 km.
12 . The method of claim 11 , wherein the paper product has a Tensile Energy Absorption (TEA) of at least approximately 106 J/m 2 .
13 . A method of making a paper product, the method comprising:
mixing together a starch and fibrillated fibers to produce a starch/fibrillated fibers mixture;
mixing the starch/fibrillated fibers mixture into wood pulp fibers to produce a pulp composition;
depositing the pulp composition onto a web to form a substrate;
at least partially dewatering the substrate; and
drying the substrate to form the paper product, wherein the paper product has an increased Breaking Length compared to a First Comparative Paper Product.
14 . A paper product comprising:
a starch in a first amount in the range of approximately 0.1 to 2.5 weight percent;
fibrillated fibers in a second amount in the range of approximately 2 to 20 weight percent; and
wood pulp fibers in a third amount in the range of approximately 83 to 97 weight percent,
wherein the paper product has a lower amount of the starch compared to a Second Comparative Paper Product; and
wherein the paper product maintains a Breaking Length within the range of approximately 10 percent compared to a Second Comparative Paper Product.
15 . The paper product of claim 14 , wherein the paper produce maintains a Breaking Length within the range of approximately 2 percent compared to a Second Comparative Paper Product.
16 . The paper product of claim 14 , wherein the paper product comprises approximately 0.1 to 2.5 weight percent starch, approximately 2 to 20 weight percent SEPF, and approximately 83 to 97 weight percent wood pulp fibers.
17 . The paper product of claim 16 , wherein the paper product comprises approximately 0.4 to 2.0 weight percent starch, approximately 3 to 17 weight percent SEPF, and approximately 83 to 97 weight percent wood pulp fibers.
18 . The paper product of claim 14 , wherein the paper product has a Breaking Length of at least approximately 7.0 km.
19 . The paper product of claim 14 , wherein the paper product has a Tensile Energy Absorption (TEA) of at least approximately 110 J/m 2 .
20 . The paper product of claim 14 , wherein the paper product has a Tear Index of less than at least approximately 9.6 mN·m 2 /g, and wherein the paper product comprises approximately 0.8 percent starch, approximately 10 percent SEPF, and approximately 90 percent wood pulp fibers.