Patent ID: 6143131
Filing Date: 2000-11-07
Classification: B31F,D21F,D21H,Y10S,Y10T

Abstract:
A soft, single-ply tissue product having a basis weight of at least about 15 lbs./3,000 sq. ft. ream and having low sidedness, said single-ply tissue formed by wet pressing of a cellulosic web, adhering said web to a Yankee dryer and creping the web from the Yankee dryer, said single-ply tissue including(a) a temporary wet strength agent comprising an organic moiety, and(b) nitrogenous softener agent,the amount of the temporary wet strength agent, and the nitrogenous softener added being sufficient to produce a single-ply tissue having a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet 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 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.