WATER-DISPERSIBLE POLYSACCARIDE DERIVATIVES OF REDUCED GLYOXAL CONTENT, AND A PROCESS FOR DECREASING THE GLYOXAL CONTENT IN GLYOXAL-CROSSLINKED POLYSACCHARIDE DERIVATIVES

摘要

A description is given of glyoxal-treated polysaccharide derivatives which, to decrease the unbound glyoxal, are treated with an aqueous solution of one or more water-soluble aluminium salts, or one or more water-soluble borates, or a combination of one or more water-soluble aluminium salts and one or more water-soluble borates, and, if appropriate, with suitable buffer substances to set the pH, and then dried.;A description is likewise given of a process for decreasing the content of unbound glyoxal in glyoxal-treated polysaccharide derivatives.