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AssigneeWeyerhaeuser Company
InventorsRobert H. Quick, Daniel M. Shellhammer, Michael R. Hansen, Richard H. Young SR.
Estimating the term…
A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the densifiable product further includes fibers having coarseness greater than about 22 mg/100 m. Juvenile wood fibers are the preferred source of fibers having low coarseness. A densified pulp product formed by compacting a fibrous composite that includes fibers having a fiber coarseness less than about 22 mg/100 m, a densifying agent, and optionally, fibers having coarseness greater than about 22 mg/100 m is also disclosed. The pulp products can be advantageously incorporated into absorbent articles and can optionally further include superabsorbent material. Methods for forming the densifiable and densified fibrous products are also disclosed.
A wood pulp composition comprising wood fibers having a fiber coarseness less than about 22 mg/100 m and a densifying agent.
The composition of claim 17 wherein the amino acid is selected from the group consisting of glycine and β-alanine.
A compressible wood pulp composition formed by applying a densifying agent to wood fibers having a fiber coarseness less than about 22 mg/100 m.
A densified pulp product formed by compacting a fibrous web comprising a densifying agent and wood fibers having a fiber coarseness less than about 22 mg/100 m.
An absorbent article comprising a wood pulp composition comprising wood fibers having a fiber coarseness less than about 22 mg/100 m and a densifying agent.
An absorbent article comprising:
An absorbent article comprising:
An absorbent article comprising:
An absorbent article comprising a compressible wood pulp composition formed by applying a densifying agent to wood fibers having a fiber coarseness less than about 22 mg/100 m.
An absorbent article comprising a densified pulp product formed by compacting a fibrous web comprising a densifying agent and wood fibers having a fiber coarseness less than about 22 mg/100 m.
An absorbent article comprising a wood pulp composition comprising wood fibers having a fiber coarseness less than about 22 mg/100 m, wood fibers having a fiber coarseness greater than about 22 mg/100 m, and a densifying agent.
An absorbent article comprising:
An absorbent article comprising:
An absorbent article comprising:
An absorbent article comprising a compressible wood pulp composition formed by applying a densifying agent to wood fibers having a fiber coarseness less than about 22 mg/100 m and wood fibers having a fiber coarseness greater than about 22 mg/100 m.
An absorbent article comprising a densified pulp product formed by compacting a fibrous web comprising a densifying agent and wood fibers having a fiber coarseness less than about 22 mg/100 m and wood fibers having a fiber coarseness greater than about 22 mg/100 m.
A method for forming a compressible pulp product comprising applying a densifying agent to wood fibers having a fiber coarseness less than about 22 mg/100 m.
A method for forming a densified pulp product comprising:
A method for forming a densified pulp product comprising:
A method for forming a fibrous sheet product having increased density comprising:
Dependencies are inferred from the claim text.