Some properties of newsprint impregnated with polyvinylamine

We measured wet-strength and dry-strength properties of newsprint impregnated with polymers in the polyvinylamine family. Polyvinylamine is a recently commercialized polymer with the potential to increase the tolerance of wood-containing papers to water-based printing processes. Poly(N-vinylformamide) (PNVF), the precursor to polyvinylamine (PVAm), increased dry strength but not wet strength. Both PVAm and partially converted PNVF-co-PVAm …