Durable tissue product
View Patent ↗The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.
1. A tissue product comprising:
a. a multi-layered web having a first outer fibrous layer comprising long cellulosic fibers forming an upper surface of the product and a second outer fibrous layer comprising short, low coarseness cellulosic fibers forming the bottom surface of the product and a middle layer disposed there between; and
b. a binder selectively disposed on the upper surface of the product and wherein the bottom surface of the product is substantially free from binder,
wherein the bottom surface of the tissue product has a slough less than about 9.0 mg.
2. The tissue product of claim 1 wherein the short, low coarseness cellulosic fibers have a fiber length less than about 2.0 mm.
3. The tissue product of claim 1 wherein the short, low coarseness cellulosic fibers have a coarseness less than about 17 mg/100 m.
4. The tissue product of claim 1 wherein the short, low coarseness cellulosic fibers have a fiber length from about 0.5 to about 1.0 mm and a coarseness from about 5.0 to about 12.0 mg/100 m.
5. The tissue product of claim 1 wherein the short, low coarseness cellulosic fibers are hardwood kraft pulp fibers.
6. The tissue product of claim 1 wherein the second outer fibrous layer consists essentially of hardwood kraft pulp fibers derived from a fiber source selected from the group consisting of Acacia, Eucalyptus, Maple, Oak, Aspen, Birch, Cottonwood, Alder, Ash, Cherry, Elm, Hickory, Poplar, Gum, Walnut, Locust, Sycamore, Beech, Catalpa, Sassafras, Gmelina, Albizia, Anthocephalus, and Magnolia.
7. The tissue product of claim 1 wherein the bottom surface has a slough from about 6.0 to about 9.0 mg.
8. The tissue product of claim 1 having a geometric mean tensile strength (GMT) from about 1,000 to about 1,750 g/3″, a basis weight from about 40 to about 60 grams per square meter (gsm) and a sheet bulk greater than about 10 cc/g.
9. The tissue product of claim 1 having a TEA Index greater than about 6.5.
10. The tissue product of claim 1 wherein the first outer fibrous layer consists essentially of long cellulosic fibers and the second outer fibrous layer consists essentially of short, low coarseness cellulosic fibers.
11. The tissue product of claim 1 wherein the second outer fibrous layer is substantially free from long cellulosic fibers.
12. The tissue product of claim 1 wherein the binder is a latex polymer.
13. The tissue product of claim 1 wherein the binder is an ethylene vinyl acetate copolymer.
14. The tissue product of claim 1 wherein the binder is selectively disposed on the upper surface of the product in a pattern.