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US 6,893,535 B2Granted
Rolled tissue products having high bulk, softness, and firmness
AssigneeKimberly-Clark Worldwide, Inc.
InventorsMichael Alan Hermans, Clayton C. Troxell, Tammy L. Baum, Sharon S. Chang, James Leo Baggot
Life of this patent
Estimating the term…
Abstract
Spirally wound paper products are disclosed having desirable roll firmness characteristics and softness properties. The rolled products can be made from a single ply tissue web formed according to various processes. Once formed, the tissue web is subjected to a shear-calendering device that increases the fuzz-on-edge properties of the web and preserves the bulk of the web when wound.
Claims66
A rolled tissue product comprising:
- a single-ply tissue web spirally wound into a roll, the wound roll having a Kershaw roll firmness of less than about 7.8 mm and a roll bulk of greater than about 10 cc/g, the tissue web having a basis weight of greater than about 25 gsm bone dry, the tissue web further having a fuzz-on-edge of greater than about 1.7 mm/mm on at least one side of the web and a geometric mean tensile strength of greater than about 550 g/3 inches.
A rolled tissue product comprising:
- a multi-ply tissue containing at least two plies spirally wound into a roll, the wound roll having a Kershaw roll firmness of less than about 9.0 mm and a roll bulk of greater than about 9 cc/g, the tissue having a basis weight of greater than about 35 gsm bone dry, the tissue further having a fuzz-on-edge of greater than about 2.0 mm/mm on at least one exterior side of the tissue, the tissue further having a geometric mean tensile strength of greater than about 500 g/3 inches.
A rolled tissue product comprising:
- a multi-ply tissue containing at least two plies spirally wound into a roll, the wound roll having a Kershaw roll firmness of less than about 8.5 mm and a roll bulk of greater than about 12 cc/g, the tissue having a basis weight of greater than about 35 gsm bone dry, the tissue further having a fuzz-on-edge of greater than about 2.0 mm/mm on at least one exterior side of the tissue, the tissue further having a geometric mean tensile strength of greater than about 700 g/3 inches.
Dependencies are inferred from the claim text.