Method for manufacturing bleached pulp, feedstock, and packaging system

Abstract

A feedstock includes feedstock paper and non-paper material. The feedstock paper includes lignin and cellulose. A method includes cooking the feedstock in cooking liquor to dissolve at least a portion of the lignin from the feedstock paper and to at least partially dissolve the non-paper material in the cooking liquor, thereby yielding a cooked pulp. The method further includes washing the cooked pulp to yield washed pulp and spent cooking liquor, regenerating the spent cooking liquor to yield regenerated cooking liquor, and bleaching the washed pulp.

1 . A method for manufacturing bleached pulp from a feedstock comprising feedstock paper and non-paper material, the feedstock paper comprising lignin and cellulose, the method comprising:
 cooking the feedstock in a cooking liquor to dissolve at least a portion of the lignin from the feedstock paper and to at least partially dissolve the non-paper material in the cooking liquor, thereby yielding a cooked pulp;   washing the cooked pulp to yield washed pulp and spent cooking liquor;   regenerating the spent cooking liquor to yield regenerated cooking liquor; and   bleaching the washed pulp.   
     
     
         2 . (canceled) 
     
     
         3 . The method of  claim 1 , wherein the feedstock paper has, on average, a kappa number of at least 70. 
     
     
         4 . (canceled) 
     
     
         5 . The method of  claim 1 , wherein the feedstock paper has, on average, a kappa number of at least 90. 
     
     
         6 . (canceled) 
     
     
         7 . The method of  claim 1 , wherein the feedstock paper has, on average, a kappa number of at least 110. 
     
     
         8 . The method of  claim 1 , wherein the feedstock paper has, on average, a kappa number of at least 120. 
     
     
         9 . The method of  claim 1 , wherein the feedstock paper includes OCC materials. 
     
     
         10 . The method of  claim 1 , wherein the non-paper material has a positive gross heating value in a dissolved state within the cooking liquor. 
     
     
         11 . (canceled) 
     
     
         12 . The method of  claim 1 , wherein the non-paper material has a positive gross heating value in a dissolved state within the cooking liquor of at least 0.1 kJ per gram of a solid content of the non-paper material. 
     
     
         13 . (canceled) 
     
     
         14 . The method of  claim 1 , wherein the non-paper material has a positive gross heating value in a dissolved state within the cooking liquor of at least 10 kJ per gram of a solid content of the non-paper material. 
     
     
         15 . The method of  claim 1 , wherein the non-paper material comprises organic non-paper material. 
     
     
         16 . The method of  claim 1 , wherein the non-paper material comprises inorganic non-paper material. 
     
     
         17 . The method of  claim 1 , wherein the non-paper material comprises non-paper packaging material. 
     
     
         18 . The method of  claim 1 , wherein the non-paper material comprises non-paper packaging material bonded between two opposing faces of feedstock papers. 
     
     
         19 . The method of  claim 1 , wherein the non-paper material comprises non-paper packaging material sealing between two opposing ends of feedstock papers. 
     
     
         20 . The method of  claim 1 , wherein the non-paper material comprises non-paper packaging material adhered to a surface of a feedstock paper. 
     
     
         21 . The method of  claim 1 , wherein the non-paper material comprises non-paper packaging material unattached to any feedstock paper. 
     
     
         22 . The method of  claim 1 , wherein the non-paper material comprises adhesive. 
     
     
         23 . The method of  claim 1 , wherein the non-paper material comprises adhesive tape. 
     
     
         24 - 31 . (canceled) 
     
     
         32 . The method of  claim 1 , wherein the step of cooking the feedstock in cooking liquor is cooking the feedstock in kraft cooking liquor. 
     
     
         33 . The method of  claim 1 , wherein the step of regenerating the spent cooking liquor to yield regenerated cooking liquor utilizes a positive gross heating value of the dissolved lignin and the dissolved non-paper material. 
     
     
         34 . The method of  claim 1 , whereby separation of the non-paper material from the feedstock paper is avoided prior to the cooking of the feedstock in cooking liquor, thereby avoiding a traditional OCC plant to prep the fiber for cooking. 
     
     
         35 . The method of  claim 1 , wherein the cooking comprises cooking the feedstock in the cooking liquor to substantially fully dissolve the non-paper material in the cooking liquor. 
     
     
         36 . (canceled) 
     
     
         37 . The method of  claim 1 , wherein the non-paper material is at least 90 percent (by weight) soluble in the cooking liquor. 
     
     
         38 - 39 . (canceled) 
     
     
         40 . A feedstock for manufacturing bleached pulp, the feedstock comprising:
 feedstock paper; and   non-paper material intermixed with the feedstock paper, wherein the non-paper material is capable of at least partially dissolving in a cooking liquor.   
     
     
         41 - 72 . (canceled) 
     
     
         73 . A packaging system comprising:
 a corrugated package; and   a non-paper packaging material capable of at least partially dissolving in a cooking liquor.   
     
     
         74 - 103 . (canceled)