FIELD: textiles, paper.
SUBSTANCE: group of inventions discloses the size press compositions and methods of production of sized paper products including linerboard. The size press compositions comprise at least one non-reactive cationic surface sizing agent, at least one reactive sizing agent, at least one reinforcing resin, at least one binder, and water. At least one non-reactive cationic surface sizing agent may be a polymer in the form of dispersion, emulsion or latex, with positive zeta-potential at a pH lower than about 6. At least one reactive sizing agent can be a dispersion, emulsion or latex, including alkyl ketene dimer or alkyl succinic acid anhydride. At least one reinforcing resin may be a polyamidoamine-epichlorohydrin resin, or poly(dimethyldiallylammonium chloride). In the method of preparation of the paper composition the size press composition is applied to paper or cardboard, and the composition comprises its components in the predetermined ratio of ingredients.
EFFECT: reduction of impact of reactive sizing agents on the friction coefficient of the finished paper or paperboard.
15 cl, 7 tbl, 7 ex
