Readily defibered pulp product

Abstract

A wet-laid wood pulp product containing cellulose pulp fibers and elongate precipitated calcium carbonate having a diameter of 0.015 to 0.6 microns at its maximum diameter and a length of 1 to 10 microns and the calcium carbonate being incorporated within the sheet and a method for making the product.

1 . A wet laid cellulose pulp sheet comprising wet-laid cellulose fiber and elongate precipitated calcium carbonate having a diameter of 0.015 to 0.6 microns at its maximum diameter and a length of 1 to 10 microns and the elongate precipitated calcium carbonate is incorporated within the sheet. 
   
   
       2 . The wet laid cellulose pulp sheet of  claim 1  wherein the elongate precipitated calcium carbonate is present in the amount of 3 to 45% of the weight of the cellulose pulp. 
   
   
       3 . The wet laid cellulose pulp sheet of  claim 1  wherein the elongate precipitated calcium carbonate is present in the amount of 3 to 15% of the weight of the cellulose pulp. 
   
   
       4 . The wet laid cellulose pulp sheet of  claim 1  wherein the elongate precipitated calcium carbonate is 1 to 3 microns in length. 
   
   
       5 . The wet laid cellulose pulp sheet of  claim 1  wherein the elongate precipitated calcium carbonate is 3 to 6 μm in length. 
   
   
       6 . The wet laid cellulose pulp sheet of  claim 1  wherein the fiberization energy is reduced from 20% to 50% as compared with a wet laid cellulose pulp sheet not having a fiberization agent. 
   
   
       7  The wet laid cellulose pulp sheet of  claim 6  wherein the wicking value is substantially the same as compared with a wet laid cellulose pulp sheet not having a fiberization agent. 
   
   
       8 . The wet laid cellulose pulp sheet of  claim 1  wherein the Gurley stiffness is from 20 to 80% less as compared with a wet laid cellulose pulp sheet not having a fiberization agent. 
   
   
       9 . The wet laid cellulose pulp sheet of  claim 1  wherein the elongate precipitated calcium carbonate is 0.015 to 0.45 microns in diameter at its maximum diameter. 
   
   
       10 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is 1 to 3 microns in length. 
   
   
       11 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is 3 to 10 microns in length. 
   
   
       12 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is present in the amount of 3 to 45% of the weight of the cellulose pulp. 
   
   
       13 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is present in the amount of 3 to 15% of the weight of the cellulose pulp. 
   
   
       14 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is 1 to 3 microns in length. 
   
   
       15 . The wet laid cellulose pulp sheet of  claim 9  wherein the elongate precipitated calcium carbonate is 3 to 6 μm in length. 
   
   
       16 . The wet laid cellulose pulp sheet of  claim 9  wherein the fiberization energy is reduced from 20% to 50% as compared with a wet laid cellulose pulp sheet not having a fiberization agent. 
   
   
       17  The wet laid cellulose pulp sheet of  claim 9  wherein the wicking value is substantially the same as compared with a wet laid cellulose pulp sheet not having a fiberization agent. 
   
   
       18 . The wet laid cellulose pulp sheet of  claim 9  wherein the Gurley stiffness is from 20 to 80% less as compared with a wet laid cellulose pulp sheet not having a fiberization agent.