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AssigneeKimberly-Clark Worldwide, Inc.
InventorsDavid J. Paulson, Thomas G. Shannon, Samantha C. Ackerly, Richard L. Underhill, Zhiying Yu
Estimating the term…
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particularly wet-laid sheets and more particularly wet-laid tissue sheets having a relatively low basis weight. In addition of having a relatively long fiber length and a low VLF content, the pulps may also have a Dispersivity Index of about 2.00 or less, which is indicative of a relatively narrow fiber length distribution. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping process using an alkaline and hydrogen peroxide where the plant biomass is cut to size prior to pulping.
A non-wood pulp comprising a plurality of fibers derived from a plant of the family Asparagaceae, the pulp having a Freeness from about 400 to about 600 mL, a fiber length from about 1.70 to about 2.50 mm and a Very Long Fiber content of about 0.50% or less.
A bleached, chemi-mechanical, non-wood pulp comprising a plurality of bleached, chemi-mechanical pulped fibers derived from one or more plants selected from H. funifera, H. parviflora, H. nocturna, H. chiangii, H. tenuifolia, H. engelmannii and H. malacophylla, the pulp having a Freeness from about 400 to about 600 mL, a fiber length from about 1.70 to about 2.50 mm, a Dispersivity Index of about 2.00 or less and a coarseness from about 4.0 to about 10.0 mg/100 m.
Dependencies are inferred from the claim text.