Paper product and a method and a system for manufacturing furnish

Abstract

The invention relates to a method for manufacturing furnish for a paper product, wherein the manufactured furnish contains fibril cellulose material. The method includes introducing first raw material to a system, which first raw material includes cellulose pulp, introducing second raw material to the system, which second raw material includes cellulose fibers that are oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose, conveying the first raw material and the second raw material to a refiner, and refining and mixing the first raw material and the second raw material in the refiner in order to produce furnish including fibril cellulose material. In addition, this invention relates to a system for manufacturing furnish and to a paper product.

1 - 15 . (canceled) 
     
     
         16 . A method for manufacturing furnish for a paper product, comprising:
 introducing first raw material to a system, said first raw material comprising cellulose pulp,   introducing second raw material to the system, said second raw material comprising anionized cellulose fibers prepared by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose,   conveying the first raw material and the second raw material to a refiner,   refining and mixing the first raw material and the second raw material in the refinerin order to produce furnish comprising fibril cellulose material.   
     
     
         17 . The method according to  claim 16 , wherein the sum of the fibril cellulose and the anionized cellulose fibers in the manufactured furnish is between 0.01-10.0% of dryweight. 
     
     
         18 . The method according to  claim 16 , wherein the amount of the fibril cellulose in the manufactured furnish is between 0.1 and 5.0 dry weight percent. 
     
     
         19 . The method according to  claim 16 , wherein the first raw material comprises chemical pulp. 
     
     
         20 . The method according to  claim 16 , wherein the refiner is placed in a paper machine approach system. 
     
     
         21 . A system for manufacturing furnish for a paper product, the system comprising:
 first means for introducing first raw material to a system, which first raw material comprises cellulose pulp,   second means for introducing second raw material to the system, which second raw material comprises cellulose fibers oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose,   at least one refiner,   at least one conveyer to convey the introduced raw materials to said at least one refiner,   said at least one refiner being configured to refine and to mix the first raw material and the second raw material in order to produce furnish comprising fibril cellulose material.   
     
     
         22 . The system according to  claim 21 , wherein the refiner is placed in a paper machine approach system. 
     
     
         23 . A paper comprising fibril cellulose material, wherein the fibril cellulose material is produced by refining from cellulose material comprising first raw material comprising cellulose pulp and second raw material comprising cellulose fibers oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose. 
     
     
         24 . The paper according to  claim 23 , wherein the paper has at least one of the following:
 improved bonding strength properties,   improved wet web tensile index, and   lowered air permeability properties.   
     
     
         25 . The paper according to  claim 23 , wherein the paper is a release paper for a label laminate. 
     
     
         26 . The paper according to  claim 23 , wherein the paper is sandpaper base. 
     
     
         27 . The paper according to  claim 23 , wherein the paper is a printing paper. 
     
     
         28 . The paper according to  claim 23 , wherein the paper is a packing material and/or a paperboard. 
     
     
         29 . The paper according to  claim 23 , wherein the amount of the fibril cellulose in the paper is between 0.5 and 2.5 w-%. 
     
     
         30 . A use of a furnish for manufacturing of paper or paperboard, wherein at least part of the furnish is manufactured according to the method of  claim 16 . 
     
     
         31 . The method according to  claim 17 , wherein the amount of the fibril cellulose in the manufactured furnish is between 0.1 and 5.0 dry weight percent. 
     
     
         32 . The method according to  claim 17 , wherein the first raw material comprises chemical pulp. 
     
     
         33 . The method according to  claim 18 , wherein the first raw material comprises chemical pulp. 
     
     
         34 . The method according to  claim 17 , wherein the refiner is placed in a paper machine approach system. 
     
     
         35 . The method according to  claim 18 , wherein the refiner is placed in a paper machine approach system.