Soft single-ply tissue having very low sideness

Claim 1

A process for the manufacture of a soft bathroom tissue product having a serpentine configuration and a low sidedness, which process comprises: providing a moving foraminous support; providing a stratified headbox adjacent said moving foraminous support adapted to form a nascent web by depositing furnish upon said moving foraminous support, said stratified headbox having at least two plena; providing wet pressing means operatively connected to said moving foraminous support to receive said nascent web and for dewatering of said nascent web by overall compaction thereof; providing a Yankee dryer operatively connected to said moving foraminous support and said wet pressing means and adapted to receive and dry the dewatered nascent web; one plenum of said headbox being adapted to deposit a Yankee-side stratum of furnish on said moving foraminous support such that, during drying of said nascent web, said Yankee-side stratum will engage said Yankee; another plenum of said headbox being adapted to deposit a distal stratum of furnish on said moving foraminous support such that, during drying of said nascent web, said distal stratum will be spaced from said Yankee; supplying a furnish to said one plenum comprising: cellulosic papermaking fiber chosen from the group consisting of hardwood, softwood, and recycled fibers, and cationic nitrogenous softener/debonder; supplying another furnish to said other plenum comprising: cellulosic papermaking fiber chosen from the group consisting of hardwood, softwood, and recycled fibers, and cationic nitrogenous softener/debonder; forming a nascent web by depositing said one furnish and said other furnish on said moving foraminous support, the overall concentration of cationic nitrogenous softener/debonder in said nascent web being controlled to between about 1 to about 8 lbs/ton on a dry fiber basis; the concentration of cationic nitrogenous softener/debonder in said Yankee-side stratum to from about 2% to no more than 75% of the concentration of said cationic nitrogenous softener/debonder in the distal stratum; wet pressing said nascent web; transferring said nascent web to said Yankee dryer, adhering said web to said Yankee, and creping said web from said Yankee; recovering a creped, dried bathroom tissue product; and forming a roll of single-ply tissue; controlling the relative amounts of softwood fibers, recycle fibers, hardwood fibers, and cationic nitrogenous softener/debonder in each of said strata wherein said tissue comprising at least two differentiated strata which do not delaminate from each other such that said creped, dried tissue exhibits: a sidedness parameter of less than 0.3, a tensile modulus of no more than 32 grams/percent strain, a GM MMD friction of no more than about 0.225, and a cross directional dry tensile strength of at least 200 grams per 3 inches.