Stabilization of regenerated cellulose

Claim 1

THE METHOD OF STABLIZING, AGAINST PROGRESSIVE, DIMENSIONAL SHRINKAGE UNDER REPEATED WASHINGS, A TEXTILE MATERIAL PREDOMINANTLY OF REGENERATED CELLULOSE, WHICH COMPRISES WETTING THE FIBERS OF SAID MATERIAL WITH AN AQUEOUS LIQUID HAVING A PH BETWEEN APPRIXMATELY 1.0 AND 2.5 AND CONTAINING A MIXTURE OF GLYOXAL IN APPROXIMATELY 1.12% TO 7.5% BY WEIGHT IN THE TREATING LIQUID, AN ALUMINUM SALT WHICH IS SOLUBLE OR READILY DISPERSIBLE IN WATER, AND AN ACID CATALYST, THE ACIDIC COMPONENT OF WHICH INCREASES IN ACIDITY AND IS NOT ELIMINATED WHEN CONCENTRATED TO DRYNESS AND SUBJECTED TO TEMPERATURES JUST ABOVE ABOUT 212*F., REMOVING EXCESS WETTING LIQUID, THEN HEATING THE TEXTILE MATERIAL SO WETTED, AFTER SAID REMOVAL OF EXCES LIQUID, TO A TEMPERATURE ABOVE ABOUT 212*F. FOR A TIME INERVAL INVERSELY RELATED TO THE TEMPERATURE, UNTIL A SUBSTANTIAL REACTION PRODUCT OF CELLULOSE AND GLYOXAL IS FORMED IN SITU IN THE FIBERS OF SAID MATERIAL.

Claim 2

THE METHOD OF STABLIZING, AGAINST PROGRESSIVE, DIMENSIONAL SHRINKAGE UNDER REPEATED WASHINGS, A TEXTILE MATERIAL PREDOMINANTLY OF REGENERATED CELLULOSE, WHICH COMPRISES WETTING THE FIBERS OF SAID MATERIAL WITH AN AQUEOUS LIQUID HAVING A PH BETWEEN APPRIXMATELY 1.0 AND 2.5 AND CONTAINING A MIXTURE OF GLYOXAL IN APPROXIMATELY 1.12% TO 7.5% BY WEIGHT IN THE TREATING LIQUID, AN ALUMINUM SALT WHICH IS SOLUBLE OR READILY DISPERSIBLE IN WATER, AND AN ACID CATALYST, THE ACIDIC COMPONENT OF WHICH INCREASES IN ACIDITY AND IS NOT ELIMINATED WHEN CONCENTRATED TO DRYNESS AND SUBJECTED TO TEMPERATURES JUST ABOVE ABOUT 212*F., REMOVING EXCESS WETTING LIQUID, THEN HEATING THE TEXTILE MATERIAL SO WETTED, AFTER SAID REMOVAL OF EXCES LIQUID, TO A TEMPERATURE ABOVE ABOUT 212*F. FOR A TIME INERVAL INVERSELY RELATED TO THE TEMPERATURE, UNTIL A SUBSTANTIAL REACTION PRODUCT OF CELLULOSE AND GLYOXAL IS FORMED IN SITU IN THE FIBERS OF SAID MATERIAL.