Tissue webs having a regular pattern of densified areas
AssigneeKimberly-Clark Corporation
InventorsGreg A. Wendt, Kimberly K. Underhill, James S. Rugowski, Bernhardt E. Kressner, Kai F. Chiu
Life of this patent
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Abstract
Creped tissues having improved perceived softness and appearance are made from tissue webs having at least a machine direction broken line pattern of individual densified areas containing higher mass concentrations of fibers. The broken line pattern of densified areas creates a pleasing appearance and influences the creping to provide a more uniform crepe and hence improved tissue softness.
Claims14
A creped tissue web having at least one broken line pattern of individual optically densified areas containing higher mass concentrations of fibers created during the initial formation of the tissue web, said tissue web exhibiting a positive response to the Lunometer Test for at least the machine direction of the tissue web and having a standard deviation for the sine of the crepe angle of 0.18 or less.
A creped tissue web having at least two broken line patterns of individual optically densified areas containing higher mass concentrations of fibers created during the initial formation of the tissue web, said tissue web exhibiting a positive response to the Lunometer Test for the machine direction and a diagonal direction of the tissue web.
A creped web having an average sine of the crepe angle of from about 0.5 to about 0.6 with a standard deviation of 0.18 or less.
A method for making a tissue web comprising:
- (a) continuously depositing an aqueous slurry of papermaking fibers onto an endless forming fabric comprising warp yarns and shute yarns;
- (b) draining water from the slurry through the forming fabric to form a dewatered web wherein the papermaking fibers are retained on the forming fabric in a broken line pattern of individual optically densified areas arranged in broken lines parallel to the machine direction of the web, said broken lines being spaced apart a distance greater than the average spacing of the warp yarns of the forming fabric;
- (c) drying the dewatered web;
- and
- (d) creping the web.
Dependencies are inferred from the claim text.