AQUEOUS COMPOSITION OF SIZING AGENT AND PAPER MAKING PROCESS

摘要

FIELD: paper making industry. SUBSTANCE: it is recommended to use aqueous compositions of sizing agents constituted by water-repellency-imparting anhydrides of cyclic dicarboxylic acids or alkyl ketene dimers. In addition, compositions comprise amphoteric polymer, such as amphoteric starch or amphoteric acrylamide-based polymer, and polyaluminium compound. EFFECT: improved quality of paper.