METHOD AND SYSTEM USING LOW FATTY ACID STARCHES IN PAPER SIZING COMPOSITION TO INHIBIT DEPOSITION OF MULTIVALENT FATTY ACID SALTS

• Main Authors: KOENIG, ASCENCION, L, KOENIG, MICHAEL, F, BUCHER, EWA, GERTRUDA
• Format: Patent
• Language: English; French
• Published: 06.10.2011
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DERIVATIVES THEREOF; DYES; FILLING PASTES; IMPREGNATING OR COATING OF PAPER; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; POLYSACCHARIDES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; USE OF MATERIALS THEREFOR; WOODSTAINS

A method for inhibiting deposition of multivalent saturated fatty acids on paper sizing equipment and/or devices which use a paper surface sizing composition containing higher starch solids levels of surface sizing starches and a source of multivalent cations, such as a multivalent metal drying salt, by including (wholly or partially) one or more low fatty acid surface sizing starches in the paper surface sizing composition. Also, a paper surface sizing system for carrying out this method. Procédé empêchant les dépôts d'acides gras saturées multivalents sur des équipements et/ou des dispositifs d'encollage de papier qui utilisent des compositions d'encollage de papier à niveaux élevés de solides d'amidon et une source de cations multivalents, telle qu'un sel de séchage de métal multivalent. A cet effet, on inclut (en partie ou en totalité) un ou plusieurs amidons d'encollage à faible teneur en acide gras dans la composition d'encollage. Est également décrit un système d'encollage de papier pour la mise en oeuvre de ce procédé.