造纸行业回收纤维的大量使用使湿部的运行环境变得非常复杂。在这种严峻条件下,造纸化学品如施胶剂、增强剂能正常发挥作用是至关重要的。该文介绍的日本新近开发的聚丙烯酰胺(PAM)类分散型聚合物助剂“POLYTENTION”在纤维原料恶化条件下表现出高凝聚性的同时还较好地提高了纸张强度;并且,该助剂还具有易溶于水、易于操作的优点。 The extensive use of recycled fibers in the paper industry makes the operating environment of the wet end very complicated. Under such severe conditions, it is crucial that paper chemicals, such as sizing agents and enhancers, work properly. The recently introduced polyacrylamide (PAM) dispersing polymer additive “POLYTENTION” in Japan, which is described in this paper, exhibits high cohesion under the deteriorating condition of the fiber raw material and at the same time improves the paper strength; moreover, The additive also has the advantage of being readily water-soluble and easy to handle.