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AssigneeKimberly-Clark Worldwide, Inc.
InventorsThomas G. Shannon, Samantha C. Ackerly, Zhiying Yu, David J. Paulson, Ning Wei
Estimating the term…
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss fiber length or pulp yield. The high degree of brightness and relatively long fiber length makes the pulps well suited for the manufacture of wet-laid fibrous products, particularly wet-laid tissue products. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping using a sodium hydroxide alkaline peroxide solution where the primary pulp is cleaned to reduce debris prior to bleaching. Preferably the cleaned primary pulp has less than about 5% debris prior to bleaching.
A non-wood pulp comprising a plurality of fibers derived from a plant of the family Asparagaceae, the non-wood pulp having a fines content of less than about 2.0%, a Freeness from about 400 mL to about 700 mL, a fiber length from about 1.70 to about 2.50 m, and a brightness of about 80% or greater.
A chemi-mechanical non-wood pulp comprising a plurality of fibers derived from one or more plants of the genus Hesperaloe and having a Freeness from about 400 to about 600 mL, a fiber length from about 2.00 to about 2.50 mm, a brightness of at least about 80%, and about 1% or less of debris.
Dependencies are inferred from the claim text.