Sized fluff pulp
AssigneeWeyerhaeuser NR Company
InventorJames H. Wiley
Life of this patent
Estimating the term…
Abstract
Embodiments of sized fluff pulp, or fluff pulp treated with a sizing agent, have desirable characteristics for one or more intended applications. The sized fluff pulp can be debonded or non-debonded. In several examples, the one or more desirable characteristics includes a reduction in its absorption characteristics (e.g., the pulp is less hydrophilic). Some characteristics improved by the sized fluff pulp include, but are not limited to, soak and drip capacity and wicking rate. In several examples, the sized fluff pulp are less hydrophilic but retain or exhibit other desirable characteristics for producing non-wovens, including low fiberization energy and fiberized knot percentage.
Claims20
A fluff pulp sheet, comprising:
- a composition including pulp fibers and a sizing agent, the composition having a soak and drip capacity of less than 15 grams/gram, and an air laid pad wicking rate of less than 3.0 mm/s;
- wherein the fluff pulp sheet has a density of less than 0.650 g/cm3 and a moisture content of less than 10%.
A fluff pulp sheet, comprising:
- a composition including wood pulp fibers, a debonding agent, and a sizing agent, wherein the composition has a soak and drip capacity of less than 15 grams/gram and an air laid pad wicking rate of less than 3.0 mm/s;
- wherein the fluff pulp sheet has a moisture content of less than 10%, and a density of less than 0.650 g/cm3.
A fluff pulp sheet, comprising:
- fluff pulp fibers;
- and
- a sizing agent;
- wherein the fluff pulp sheet has a soak and drip capacity of less than 15 grams/gram, an air laid pad wicking rate of less than 3.0 mm/s, a fiberization energy of less than 120 kJ/kg, and a fiberized knot percentage of less than 30 percent.
Dependencies are inferred from the claim text.