Method for the production of paper

Abstract

A method for the production of paper which is characterized in that it employs an anionic fluorine-based oil-proofing agent and a fixing agent comprising polymer in which at least N-vinylformamide is a polymerization component and/or a derivative of said polymer; together with paper which is characterized in that it contains an anionic fluorine-based oil-proofing agent and a fixing agent comprising polymer in which at least N-vinylformamide is a polymerization component and/or a derivative of said polymer.

1 . A method for the production of paper comprising adding an anionic fluorine-based oil-proofing agent and a fixing agent comprising a polymer in which at least N-vinylformamide is a polymerization component and/or a derivative of said polymer to a paper making process to form a paper product.  
   
   
       2 . The method for the production of paper according to  claim 1 , wherein said polymer derivative is the hydrolysate of said polymer in which at least N-vinylformamide is a polymerization component.  
   
   
       3 . The method for the production of paper according to  claim 1 , wherein said polymer derivative is the hydrolysate of poly(N-vinylformamide).  
   
   
       4 . The method for the production of paper according to  claim 2 , wherein said hydrolysate is the product obtained by hydrolysis of the formyl groups in said polymer at a percentage hydrolysis of 10 to 90% of the total formyl groups.  
   
   
       5 . The method for the production of paper according to  claim 1 , wherein said anionic fluorine-based oil-proofing agent is an oil-proofing agent comprising a compound having a phosphoric acid group or phosphate ester group.  
   
   
       6 . A paper product comprising an anionic fluorine-based oil-proofing agent and a fixing agent comprising polymer in which at least N-vinylformamide is a polymerization component and/or a derivative of said polymer.  
   
   
       7 . The paper product according to  claim 6 , wherein the anionic fluorine-based oil-proofing agent is an oil-proofing agent comprising a compound having a phosphoric acid group or phosphate ester group.