FIELD: paper making. SUBSTANCE: applied to base paper is aqueous composition containing synthetic grafted copolymer based on soya protein containing synthetic part up to 82% and pigments by method of pouring method. Above indicated copolymer is used in form of polydiene copolymer and vinylaryl monomer or butadiene and styrene on soya protein in the amount of 10-25% of pigment mass. Pigments are used in form of mixture of clay and calcium carbonate, each of which amounts up to 10-90% of pigment total mass. EFFECT: higher efficiency. 4 cl, 1 tbl
Authors
Dates
1995-06-19—Published
1990-07-05—Filed