Patent ID: 6334931
Filing Date: 2002-01-01
Classification: B31F,D21F,D21H,Y10T

Abstract:
A single-ply, tissue product having a basis weight of at least about 15 lbs per 3000 square foot ream and exhibiting low sidedness, said single-ply tissue comprising cellulosic fibers; from about 2 pounds per ton to about 25 pounds per ton of at least one water soluble temporary wet strength agent selected from the group of charged cationic starchs having aldehyde moieties; and from about 1 pound per ton to about 10 pounds per ton of softener/debonder comprising a cationic nitrogenous imidazoline softener/debonder;wherein the ratio of the temporary wet strength agent to the nitrogenous cationic softener/debonder is selected to yield a single-ply tissue product having a specific total tensile strength of between 40 and 200 grams per 3 inches per pound per 3000 square foot ream, a cross direction specific wet tensile strength of between 2.75 and 20 grams per 3 inches per pound per 3000 square foot ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 3.2 grams per inch per percent strain per pound per 3000 square foot ream, a friction deviation of less than 0.250, and a sidedness parameter of less than 0.30.