Verfahren zur Herstellung von Papierprodukten und darin verwendbare Leimungsmittelzusammensetzung

摘要

A process for making paper products is described in which sizing is effected by use of a hydrophobic cellulose-reactive sizing agent in combination with a promoter. As promoters water-insoluble bases are used which are formed by the reaction of saturated fatty acids, unsaturated fatty acids, hydroxy substituted fatty acids and/or mixtures thereof and alkanoldimaines and/or aliphatic polymaines. Further a corresponding paper sizing composition is described which comprises a hydrophobic cellulose-reactive sizing agent and such a promoter. The combination of hydrophobic celluulose-reactive sizing agent and promoter provides a synergistic effect so that for achieving the same sizing level a lower amount of hydrophobic cellulose-reactive sizing agent is required. Alternatively at the same concentration of the hydrophobic cellulose-reactive sizing agent a higher sizing level can be achieved.