Tissue product containing carboxylated cellulosic fibers

Abstract

A tissue product having two or more layers, with at least one layer including carboxylated cellulosic fibers. Methods for making the tissue product.

1 . A tissue product, comprising two or more layers, wherein at least one layer comprises carboxylated cellulosic fibers.  
     
     
         2 . The tissue product of  claim 1 , wherein the carboxylated fibers are present in an amount from about 0.5 to about 100 percent by weight based on the total weight of the layer.  
     
     
         3 . The tissue product of  claim 1 , wherein the carboxylated fibers are present in about 75 percent by weight based on the total weight of the layer.  
     
     
         4 . The tissue product of  claim 1 , wherein the carboxylated fibers have a carboxyl content of from about 6 to about 60 meq/100 g cellulose.  
     
     
         5 . The tissue product of  claim 1 , wherein the carboxylated fibers have a carboxyl content of from about 6 to about 10 meq/100 g cellulose.  
     
     
         6 . The tissue product of  claim 1 , wherein the carboxylated fibers have an aldehyde content of less than about 1 meq/100 g cellulose.  
     
     
         7 . The tissue product of  claim 1  further comprising non-carboxylated fibers.  
     
     
         8 . The tissue product of  claim 7 , wherein the non-carboxylated fibers are at least one of recycled fibers, bleached kraft hardwood pulp fibers, bleached kraft softwood pulp fibers, bleached sulfite pulp fibers, or bleached chemi-thermomechanical pulp fibers.  
     
     
         9 . The tissue product of  claim 1  further comprising a wet strength agent  
     
     
         10 . The tissue product of  claim 9 , wherein the wet strength agent comprises a polyacrylamide-epichlorohydrin resin.  
     
     
         11 . The tissue product of  claim 9 , wherein the wet strength agent is present in an amount from about 5 to about 40 lb/ton fiber.  
     
     
         12 . The tissue product of  claim 9 , wherein the wet strength agent comprises cationic starch.  
     
     
         13 . The tissue product of  claim 1  further comprising carboxymethyl cellulose.  
     
     
         14 . The tissue product of  claim 13 , wherein carboxymethyl cellulose is present in an amount less than about 10 lb/ton fiber.  
     
     
         15 . The tissue product of  claim 1 , wherein product is at least one of a facial tissue, a toilet tissue, a disposable wipe, a napkin, a handkerchief, or a paper towel.  
     
     
         16 . The tissue product of  claim 1  having a wet burst/dry tensile ratio of from about 0.20 to about 0.40.  
     
     
         17 . The tissue product of  claim 1  having two layers.  
     
     
         18 . The tissue product of  claim 1  having three layers.  
     
     
         19 . The tissue product of  claim 1  having more than one ply.