CELLULOSIC PRODUCT AND PROCESS FOR ITS PRODUCTION

• Main Authors: TOKARZ, MAREK, NILSSON, JERKER
• Format: Patent
• Language: English
• Published: 30.08.2016
• Subjects: IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

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.