Tissue products having reduced slough
View Patent ↗A method for forming a tissue product that is soft and produces relatively low levels of slough is provided. The method includes providing a liquid furnish of cellulosic fibers and forming a multi-layered wet web therefrom. The web is dried (e.g., through-dried) to a solids consistency of 90% or greater. A latex having a glass transition temperature less than about 30° C. is applied to the dried web (e.g., foamed, printed, sprayed, etc.) such that the latex comprises less than about 3% by weight of the dry weight of the web. The latex remains substantially uncured after being applied to the dried web.
1. A tissue product comprising a multi-layered paper web having at least one outer layer that defines an outer surface of the tissue product, said outer layer being formed from cellulosic fibers, wherein said outer layer comprises a substantially uncured latex having a glass transition temperature less than about 30° C. and greater than about −25° C., where said latex comprises less than about 2% of the dry weight of said web.
2. A tissue product as defined in claim 1 , wherein said latex comprises from about 0.1% to about 1.5% of the dry weight of said web.
3. A tissue product as defined in claim 1 , wherein said latex comprises from about 0.5% to about 1% of the dry weight of said web.
4. A tissue product as defined in claim 1 , wherein one or more of the remaining layers of said multi-layered paper web are substantially free of said latex.
5. A tissue product as defined in claim 1 , wherein the tissue product has a basis weight less than about 80 grams per square meter.
6. A tissue product as defined in claim 1 , wherein said latex is selected from the group consisting of styrene-butadien copolymers, polyvinyl acetate homopolymers, vinyl-acetate ethylene copolymers, vinyl-acetate acrylic copolymers, ethylene-vinyl chloride copolymers, ethylene-vinyl chloride-vinyl acetate terpolymers, acrylic polyvinyl chloride polymers, acrylic polymers, and nitrile polymers.
7. A tissue product as defined in claim 1 , wherein said outer layer further comprises a debonder, a strength agent, or combinations thereof.
8. A tissue product as defined in claim 1 , wherein said multi-layered web is an uncreped, through-dried web.
9. A tissue product as defined in claim 1 , wherein said surface of said multi-layered web has elevated regions and non-elevated regions, said latex being applied to said through-dried web such that a greater amount of said latex resides on said elevated regions than on said non-elevated regions.
10. A tissue product comprising a through-dried, multi-layered paper web having at least one outer fibrous layer that defines an outer surface of the tissue product, wherein said surface of said multi-layered web has elevated regions and non-elevated regions, wherein said outer layer comprises a substantially uncured latex such that a greater amount of said latex resides on said elevated regions than on said non-elevated regions, said latex having a glass transition temperature less than about 30° C. and greater than about −25° C., where said latex comprises less than about 2% of the dry weight of said web.
11. A tissue product as defined in claim 10 , wherein said latex comprises from about 0.1% to about 1.5% of the dry weight of said web.
12. A tissue product as defined in claim 10 , wherein said latex comprises from about 0.5% to about 1% of the dry weight of said web.
13. A tissue product as defined in claim 10 , wherein one or more of the remaining layers of said multi-layered paper web are substantially free of said latex.
14. A tissue product as defined in claim 10 , wherein said outer layer further comprises a debonder, a strength agent, or combinations thereof.
15. A tissue product as defined in claim 10 , wherein the tissue product is uncreped.
16. A tissue product comprising a through-dried, multi-layered paper web having at least one outer fibrous layer that defines an outer surface of the tissue product, wherein said surface of said multi-layered web has elevated regions and non-elevated regions, wherein said outer layer comprises a substantially uncured latex such that a greater amount of said latex resides on said elevated regions than on said non-elevated regions, said latex having a glass transition temperature less than about 30° C. and greater than about −25° C., wherein said latex comprises from about 0.1% to about 1.5% of the dry weight of said web, and wherein one or more of the remaining layers of said multi-layered paper web are substantially free of said latex.
17. A tissue product as defined in claim 16 , wherein said latex comprises from about 0.5% to about 1% of the dry weight of said web.
18. A tissue product as defined in claim 16 , wherein said outer layer further comprises a debonder, a strength agent, or combinations thereof.
19. A tissue product as defined in claim 16 , wherein the tissue product is uncreped.