Modified cellulosic fibers and method for preparation thereof

Abstract From the Canadian patent

Cellulosic fibers characterized by a lack of swellability and incapable of natural fiber-to-fiber bonding are produced by a pro-, cess which comprises treating an aqueous slurry of the fibers with a formaldehyde-free polymeric compound heating the treated fibers, to cause the polymeric compound to react with the fibers and, refiberizing to separate individual treated fibers. The fibers are, useful in the preparation of improved cellulosic webs characterized primarily by their increased bulk and improved softness.