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US 10,767,280 B2Granted
High-permeability cellulose fibers
AssigneeGP Cellulose GmbH
InventorsAlan Jeffrey Campbell, Sonja McNeil Fields, Danny R. Moore, Stephen Skirius
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Abstract
High permeability curly fibers with enhanced fiber strength are produced by mercerizing cellulosic fibers. The fibers have relatively high values for curl, kink level, wet tensile strength, and bulk density when compared with current fibers. The disclosed fibers can be used in a wide range of applications including paper products such as filters.
Claims21
A fibrous structure comprising mercerized cellulose fiber having:
- (a) an x-ray diffraction coefficient of at least about 0.58;
- (b) a curl of at least about 38%;
- (c) a kink level of at least about 3200 kinks per meter;
- and
- (d) a length-weighted fiber length of at least about 1.9 mm,
- wherein the fibrous structure has a wet tensile of at least 60 N/cm at 1000 revs refining and an air permeability of at least 400 cfm/ft2 at 0 revs refining.
3 more elements
Dependencies are inferred from the claim text.