Tissue With Improved Dispersibility

Abstract

Soft tissue sheets, such as bath tissues, are provided with increased dispersibility and fiber opacity efficiency, while maintaining suitable strength, by the addition of acid-treated seed fibers to the fiber furnish.

1 . A soft tissue having a bone dry basis weight from about 15 to about 35 grams per square meter, from about 5 to about 40 dry weight percent softwood fibers and from about 60 to about 95 dry weight percent hardwood fibers, a geometric mean tensile strength from about 500 to about 1000 grams per 3 inches of width and a Dispersibility of about 1.5 cycles or less. 
   
   
       2 . The tissue of  claim 1  having a Dispersibility from about 0.5 to about 1.5 cycles. 
   
   
       3 . The tissue of  claim 1  having a Dispersibility from about 0.5 to 1.0 cycles. 
   
   
       4 . The tissue of  claim 1  having a Dispersibility of about 1 cycle. 
   
   
       5 . The tissue of  claim 1  having a ratio of opacity divided by bone dry basis weight of about 2.5 percent/gsm or greater. 
   
   
       6 . The tissue of  claim 1  having a ratio of opacity divided by bone dry basis weight from about 2.5 to about 3.0 percent/gsm. 
   
   
       7 . The tissue of  claim 1  having a ratio of opacity divided by bone dry basis weight from 2.56 to 2.70 percent/gsm. 
   
   
       8 . The tissue of  claim 1  consisting of a single ply. 
   
   
       9 . The tissue of  claim 1  having from about 10 to about 20 dry weight percent softwood fibers and from about 80 to about 90 dry weight percent hardwood fibers. 
   
   
       10 . A soft tissue having a bone dry basis weight from about 15 to about 35 grams per square meter, from about 5 to about 40 dry weight percent softwood fibers and from about 60 to about 95 dry weight percent hardwood fibers, and from about 0.5 to about 5 dry weight percent of an Enhanced Fiber Additive, said tissue having a geometric mean tensile strength from about 500 to about 1000 grams per 3 inches of width and a Dispersibility of about 1.5 cycles or less. 
   
   
       11 . The tissue of  claim 10  having from about 0.5 to about 4 dry weight percent of an Enhanced Fiber Additive. 
   
   
       12 . The tissue of  claim 10  having from about 1 to about 3 dry weight percent of an Enhanced Fiber Additive. 
   
   
       13 . The tissue of  claim 10  having a Dispersibility from about 0.5 to 1.5 cycles. 
   
   
       14 . The tissue of  claim 10  having a Dispersibility of about 1 cycle. 
   
   
       15 . The tissue of  claim 10  having a ratio of opacity divided by bone dry basis weight of about 2.5 percent/gsm or greater. 
   
   
       16 . The tissue of  claim 10  having a ratio of opacity divided by bone dry basis weight from about 2.5 to about 3.0 percent/gsm. 
   
   
       17 . The tissue of  claim 10  having a ratio of opacity divided by bone dry basis weight from 2.56 to 2.70 percent/gsm. 
   
   
       18 . The tissue of  claim 10  consisting of a single ply. 
   
   
       19 . The tissue of  claim 10  having from about 10 to about 20 dry weight percent softwood fibers and from about 80 to about 90 dry weight percent hardwood fibers.