Soft tissue comprising synthetic fibers
AssigneeKimberly-Clark Worldwide, Inc.
InventorsThomas Gerard Shannon, Bo Shi
Life of this patent
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AssigneeKimberly-Clark Worldwide, Inc.
InventorsThomas Gerard Shannon, Bo Shi
Estimating the term…
The present invention provides a tissue product formed from a fiber furnish consisting essentially of short cellulosic fibers, such as fibers having an average fiber length less than about 2.0 mm, and a synthetic fiber having at least one cross-section dimension less than about 20 microns. The invention also provides a tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of synthetic fibers and short cellulosic fibers, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between where the synthetic fibers are selectively disposed in the middle layer. Generally the tissue product comprises less than about 30 percent, by weight of the tissue product, synthetic fiber. In a preferred embodiment the tissue product comprises non-fibrillated polyethylene terephthalate (PET) fibers having a circular cross-section shape with a diameter less than about 5.0 microns and are substantially free from long cellulosic fibers. Despite being free from long cellulosic fibers the tissue product have good strength and low stiffness.
1-26. (canceled)
A tissue product comprising at least one tissue web, the tissue web comprising non-fibrillated synthetic fiber having at least one cross-section dimension less than 20 microns and an average fiber length from about 1.0 to about 5.0 mm, the tissue product having a geometric mean tensile (GMT) greater than about 800 g/3″ and a geometric mean slope (GM Slope) less than about 10.0 kg.
A tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of non-fibrillated synthetic fibers having an average fiber length from about 1.0 to about 5.0 mm and cellulosic fibers having an average fiber length from about 0.5 to about 2.0 mm, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between wherein the non-fibrillated synthetic fibers are selectively disposed in the middle layer and the first and second layers are substantially free from non-fibrillated synthetic fibers, the tissue product having a GMT greater than about 800 g/3″ and a GM Slope less than about 10.0 kg.
A method of forming a wet laid tissue web comprising the steps of:
Dependencies are inferred from the claim text.