Stabilizing cellulosic textile materials against shrinkage employing glyoxal and a metal silicofluoride as a catalyst

Claim 1

IN THE PROCESS OF STABILIZING A TEXTILE MATERIAL AGAINST SHRINKAGE UPON WASHING IN HOT AQUEOUS SOLUTIONS WITHOUD SIGNIFICANT LOSS IN TENSILE STRENGTH AND ABRASION RESISTANCE, THE STEPS OF IMPREGNATING TEXTILE MATERIALS OF THE GROUP CONSISTING OF NATURAL CELLULOSE, REGENERATED CELLULOSE, AND MIXTURES WITH EACH OTHER AND UP TO SUBSTANTIALLY 50% OF CELLULOSE ESTERS OF A SHORT CHAIN ALIPHATIC ORGANIC ACID, WITH AN AQUEOUS LIQUID CONTAINING SUBSTANTIALLY 1.0 TO 10.0% GLYOXAL AND A WATER-SOLUBLE METALLIC SILICOFLUORIDE IN AN AMOUNT OF AT LEAST SUBSTANTIALLY 0.3%, EACH BY WEIGHT, ON THE BASIS OF THE TREATING SOLUTION AND A 100% PICK-UP BASED ON THE DRY WEIGHT OF THE GOODS, MECHANICALLY REMOVING SURPLUS IMPREGNATING LIQUID, THEN DRYING THE TEXTILE MATERIAL AFTER SAID LIQUID REMOVAL, AND CURING IT AT A TEMPERATURE ABOVE SUBSTANTIALLY 100*C. FOR A PERIOD OF TIME INVERSELY RELATED TO THE TEMPERATURE UNTIL THERE IS A SUBSTANTIAL REDUCTION IN SHRINKAGE IN COMPARISON WITH THE UN-TREATED TEXTILE MATERIAL.