Fort James Corporation

Kimberly-clark Corporation

John Dennis Litvay

Frank David Harper

Taiye Philips Oriaran

Michael Alan Hermans

Michael John Smith

Shafi U Hossain

Faith Eileen Cochrane

Robert D Sauer

Single-ply absorbent tissue paper wherein of the fibers incorporated in the web: (a) at least 20% by weight have a coarseness exceeding 23 mg/100 m; (b) at least about 20% by weight have a coarseness of less than about 12 mg/100 m; and (c) the weight average fiber coarseness to length ratio is less than about 8.5 mg/100 m/mm. The single-ply tissue having: a serpentine configuration; low sidedness; a basis weight of at least about 12.5 lbs. per 3000 square foot ream; specific total tensile strength between 40 and 200 g/3 inches/lb per 3000 square foot ream; a cross direction specific wet tensile strength between 2.75 and 20.0 g/3 inches/lb per 3000 square foot ream; an MD tensile to CD tensile ratio between 1.25 and 2.75; a specific geometric mean tensile stiffness between 0.5 and 3.2 g/inch/% strain per pound per 3000 square foot ream; a friction deviation less than 0.250; and a sidedness parameter less than 0.30.

Soft, bulky single-ply absorbent paper having a serpentine configuration

Soft, bulky single-ply absorbent paper

Method of manufacturing a soft, bulky single-ply absorbent paper having a serpentine configuration

The present invention relates to a soft, thick, single-ply, absorbent paper in the form of a bathroom tissue, facial tissue, or napkin wherein the cellulosic fibers incorporated in the furnish comprise: (a) at least 20 percent by weight of the fibers in the web have a coarseness exceeding 23 mg/100 m; (b) at least about 20 percent by weight of the fibers in the web have a coarseness of less than about 1.2 mg/100 m; and (c) the weight average coarseness to length ratio of the fibers in the web is less than about 8.5 mg/100 m/mm having a serpentine configuration and to a process for the manufacture of such absorbent paper having a basis weight of about 15 lbs. per 3000 square foot ream and having low sidedness, said tissue exhibiting:

Tissue products made with fibers having a low Coarseness Index have improved softness relative to tissue products made with conventional papermaking fibers.

Tissue products made from low-coarseness fibers

Tissue products, such as facial and bath tissue, are provided with improved softwood and opacity by making the products from a furnish containing fibers of a lower coarseness created by splitting the fibers in the lengthwise direction.

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Appleton, WI, United States of America

John Dennis Litvay