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US 9,869,059 B2Granted
Fluff pulp and high sap loaded core
AssigneeInternational Paper Company
InventorsJames E. Sealey, Brent A. Fields
Life of this patent
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Abstract
A fluff pulp is provided, which comprises softwood fibers; and 3 to 35% by weight of hardwood fibers. A fluff is also provided, which comprises the fiberized or shredded fluff pulp. A core is also provided, which comprises the fluff and at least an SAP. Processes for making and using the fluff pulp, fluff, and core are provided, and products made thereby.
Claims11
A process for making fluff pulp, comprising:
- contacting a first aqueous slurry comprising softwood fibers with a second aqueous slurry comprising hardwood fibers, to form a furnish;
- contacting the furnish onto a moving wire, to form a web;
- drying and optionally pressing the web, to form the fluff pulp comprising softwood fibers and from 8 to 23% by weight hardwood fibers;
- fiberizing the fluff pulp;
- and contacting the fiberized fluff pulp with one or more superabsorbent polymers.
2 more elements
Dependencies are inferred from the claim text.