Crepe fabric

Claim 1

A PROCESS FOR PRODUCING AN ALL ACETATE CREPE FABRIC, WHICH NEW FABRIC EXHIBITS IMPROVEMENT IN THAT THE FINISHED FABRIC HAS A FILLING GRAB STRENGTH OF THE ORDER OF 28 LBS., A FILLING GRAB STRETCH OF THE ORDER OF 45%, AND RETAINS ITS PEBBLE AFTER REPEATED WASHINGS, WHICH INCLUDE THE STEPS OF FIRST OBTAINING AN ACETATE FILLING YARN WHICH IS CAPABLE OF TAKING A HIGH TWIST WITHOUT SUBSTANTIAL INJURY THERETO, SAID YARN BEING PRODUCED BY EXTRUDING A SOLUTION OF CELLULOSE ACETATE IN A VOLATILE SOLVENT THROUGH AT LEAST 38 ORIFICES OF A SPINNERET AT A TEMPERATURE OF 80-100* C. TO FORM SAID FILLING YARN, SAID YARN BEING CURED AND WOUND UP AT A DRAFT OF .4 TO .7, THEN CREPE TWISTING THIS UNCOATED FILLING YARN PRODUCED AS AFOREMENTIONED TO THE ORDER OF AT LEAST 75 TURNS PER INCH AT A TEMPERATURE BETWEEN 25-30* C., AND IN CARRYING OUT SAID TWISTING APPLYING AN AQUEOUS SETTING BATH CONTAINING AT LEAST ONE OF THE COMPONENTS FROM THE GROUP CONSISTING OF GELATIN AND SULPHATED VEGETABLE OIL TO SET THE TWIST, SAID TWIST BEING APPLIED IN A MANNER WHEREBY THE TWIST RUNS BACK INTO SAID BATH, CONTROLLING THE TENSION ON THE YARN WHILE IN CONTACT WITH THE BATH, SO THAT THE TENSION IS WITHIN THE RANGE OF 0.05 TO 0.1 GRAM PER DENIER, AND THEREAFTER WEAVING THE YARN AS A FILLING YARN INTO AN ACETATE WARP, EMBOSSING THE RESULTANT FABRIC AND SUBJECTING THE EMBOSSED FABRIC TO A BOIL OFF WHEREBY THE NEW ALL ACETATE CREPE FABRIC HAVING THE IMPROVED CHARACTERISTICS REFERRED TO ABOVE IS OBTAINED.