Abstract: A strengthened paper product is described, which is composed of multiple layers of paper with one or more intervening layers of water soluble polyvinyl alcohol film for providing additional dry strength while maintaining environmentally safe disintegration/dissolution in water at which time the additional strength of the product is reduced. This invention is particularly adapted to use as toilet tissue, although alternative uses such as cleaning, polishing or buffing cloths, tablecloths, napkins and disposable hospital wear are also accommodated.

Abstract: A strengthened paper product is described, which is composed of multiple layers of paper with an intervening layer of water soluble polyvinyl alcohol film for providing additional dry strength while maintaining environmentally safe disintegration/dissolution in water. This invention is particularly adapted to use as toilet tissue, although alternative uses such as cleaning, polishing or buffing cloths, table cloths, napkins and disposable hospital wear are also accommodated. The layers of paper are fixed to the film by the selection of a polyvinyl alcohol film having a tacky surface. This invention works well as sheets or as a rolled paper products having perforations for separation into individual sheets.