Patent ID: 6033523
Filing Date: 2000-03-07
Classification: B31F,D21F,D21H

Abstract:
A method of making an absorbent, high-softness, high-basis weight, singleply tissue comprising:(a) providing a fibrous pulp of papermaking fibers;(b) forming a nascent web from said pulp, wherein said web has a basis weight of at least about 15 lbs./3,000 sq. ft. ream;(c) including in said web at least about 3 lbs./ton of a temporary wet strength agent and up to 10 lbs./ton of a nitrogen containing softener; optionally a cationic nitrogen containing softener;(d) dewatering said web;(e) adhering said web to a Yankee dryer;(f) creping said web from said Yankee dryer using a creping angle of less than 85 degrees, wherein the relative speeds between said Yankee dryer and the take-up reel is controlled to produce a final product MD stretch of at least about 15%;(g) optionally calendering said web;(h) embossing said web between mated emboss rolls, each of which contain both male and female elements;(i) forming a single-ply web wherein steps (a)-(f) and (h) and optionally step (g) are controlled to result in a single-ply tissue product having a total tensile strength of no more than 75 grams per three inches per pound per ream basis weight, a cross direction wet tensile strength of at least 2.7 grams per three inches per pound per ream of basis weight, a tensile stiffness of not more than about 1.1 grams per inch per percent strain per pound per ream basis weight, a ratio of product cross direction stretch to base sheet cross direction stretch of at least about 1.4, GM friction deviation of no more than 0.225 and a sidedness parameter less than 0.275.