USE OF A SURFACE-REACTED CALCIUM CARBONATE IN TISSUE PAPER, PROCESS TO PREPARE A TISSUE PAPER PRODUCT OF IMPROVED SOFTNESS, AND RESULTING IMPROVED SOFTNESS TISSUE PAPER PRODUCTS

摘要

The present invention relates to the use of a surface-reacted natural calciumcarbonate as filler in tissue paperproducts, to a process to prepare tissue paper products, and to a tissue paperproduct featuring an improved softness, wherein saidsurface-reacted natural calcium carbonate is the reaction product of a naturalcalcium carbonate with an acid and carbon dioxide,which is formed in situ by the acid treatment and/or supplied externally.