A COMPONENT FOR USE IN PAPER MANUFACTURE, ITS PREPARATION AND USE

摘要

An easily water-soluble or water-dispersible sizing component, which contains cationized polyvinyl butyral or other equivalent cationized polyvinyl acetal, for the improvement of surface properties of paper or other equivalent web product. Cationized polyvinyl butyral can be prepared by cationizing polyvinyl butyral or by butyrating cationized polyvinyl alcohol. The sizing component typically contains 50 - 90% polyvinyl butyral or other corresponding polyvinyl acetal, and 10 - 50% of a softener, such as castor oil. The polyvinyl butyral containing sizing component can be used for example in the surface sizing of base paper of release paper and of inkjet paper or in the formation of a barrier layer on the paper surface.