CELLULOSIC PRODUCT AND PROCESS FOR ITS PRODUCTION

摘要

THE PRESENT INVENTION RELATES TO A PROCESS FOR THE PRODUCTION OF A CELLULOSIC PRODUCT WHICH COMPRISES (I) PROVIDING AN EQUEOUS SUSPENSION CONTAINING CELLULOSIC FIBRES, AND OPTIONAL FILLER; (II) ADDING TO THE SUSPENSION A CLAY HAVING 3R( ) STACKING; AND (III) DEWATERING THE OBTAINED SUSPENSION. THE INVENTION ALSO RELATES TO A PROCESS FOR THE PRODUCTION OF A CELLULOSIC PRODUCT WHICH COMPRISES (I) PROVIDING AN AQUEOUS SUSPENSION CONTAINING CELLULOSIC FIBRES, AND OPTIONAL FILLER; (II) ADDING TO THE SUSPENSION A CATIONIC CLAY; (III) ADDING TO THE SUSPENSION ONE OR MORE DRAINAGE AND RETENTION AIDS COMPRISING AT LEAST ONE CATIONIC POLYMER; AND (IV) DEWATERING THE OBTAINED SUSPENSION. THE INVENTION FURTHER RELATES TO A CELLULOSIC PRODUCT COMPRISING CLAY HAVING 3R( ) STACKING.