Paper products and method of making

Abstract

A method for making coated or uncoated paper that has small sized calcium carbonate on its surface. The calcium carbonate is placed on the paper web at the size press, by a spray or at a coating operation. The calcium carbonate can have a maximum mean average size of 200 nm. Another embodiment has a maximum mean average size of 100 nm. Another embodiment has a maximum mean average size of 50 nm. Different weight levels may be place on the paper.

1 . The method of forming paper comprising: 
 forming a wet web of cellulosic fibers;    removing water from said web;    drying said web;    placing calcium carbonate on said web;    said calcium carbonate having a maximum mean average size of 200 nm.    
     
     
         2 . The method of  claim 1  in which said calcium carbonate is placed on said web by a size press and thereafter performing said drying step.  
     
     
         3 . The method of  claim 1  in which said calcium carbonate is placed on the web by a spray and thereafter performing said drying step.  
     
     
         4 . The method of  claim 1  in which said drying step is performed and thereafter said calcium carbonate is placed on the web by a coating apparatus.  
     
     
         5 . The method of  claim 1  in which said calcium carbonate is applied in the amount of 0.1 to 300 pounds per ton of base paper.  
     
     
         6 . The method of  claim 5  in which said calcium carbonate is applied in the amount of 5 to 150 pounds per ton of base paper.  
     
     
         7 . The method of  claim 1  in which said calcium carbonate has a maximum mean average size of 100 nm.  
     
     
         8 . The method of  claim 7  in which said calcium carbonate is placed on said web by a size press and thereafter performing said drying step.  
     
     
         9 . The method of  claim 7  in which said calcium carbonate is placed on the web by a spray and thereafter performing said drying step.  
     
     
         10 . The method of  claim 7  in which said drying step is performed and thereafter said calcium carbonate is placed on the web by a coating apparatus.  
     
     
         11 . The method of  claim 7  in which said calcium carbonate is applied in the amount of 0.1 to 300 pounds per ton of base paper.  
     
     
         12 . The method of  claim 11  in which said calcium carbonate is applied in the amount of 5 to 150 pounds per ton of base paper.  
     
     
         13 . The method of  claim 1  in which said calcium carbonate has a maximum mean average size of 50 nm.  
     
     
         14 . The method of  claim 13  in which said calcium carbonate is placed on said web by a size press and thereafter performing said drying step.  
     
     
         15 . The method of  claim 13  in which said calcium carbonate is placed on the web by a spray and thereafter performing said drying step.  
     
     
         16 . The method of  claim 13  in which said drying step is performed and thereafter said calcium carbonate is placed on the web by a coating apparatus.  
     
     
         17 . The method of  claim 13  in which said calcium carbonate is applied in the amount of 0.1 to 300 pounds per ton of base paper.  
     
     
         18 . The method of  claim 17  in which said calcium carbonate is applied in the amount of 5 to 150 pounds per ton of base paper.