Method of treating knitted superpoly-amide textile fabric with an aqueous phenol bath subjected to ultra-sonic waves and fabric produced thereby

Claim 1

THE METHOD OF TREATING A KNITTED TEXTILE FABRIC COMPRISED OF SUPERPOLYAMIDE MULTI-FILAMENT YARN OF WHICH THE INDIVIDUAL FILAMENTS ARE CONTINUOUS, WHICH COMPRISES SUBJECTING SAID FABRIC TO AN AQUEOUS BATH CONTAINING A SOLUTION OF THE ORDER OF FOUR TO SIX PERCENT, BASED ON THE WEIGHT OF THE SOLUTION, OF A CHEMICAL FIBER-CURLING AGENT FOR SUPERPOLYAMIDES, SAID AGENT CONSISTING ESSENTIALLY OF A CRYSTALLIZED PHENOL, AND SIMULTANEOUSLY IMPARTING PULSE TRAINS OF ULTRA-SONIC ACOUSTIC WAVE OSCILLATIONS TO THE BATH THE FREQUENCIES OF SAID OSCILLATIONS BEING WITHIN THE RANGE OF 20,000 TO 60,000 CYCLES PER SECOND, THE DURATION OF SUCH TREATMENT IN SAID AQUEOUS BATH BEING NOT LONGER THAN 15 SECONDS, WHEREBY RESPECTIVE INDIVIDUAL ONES OF SAID CONTINUOUS FILAMENTS BECOME CURLED AND SPREAD APART AT PORTIONS THEREOF BETWEEN CROSSING POINTS OF THE KNITTED FILAMENTS, THE EFFECT OVER THE FABRIC BEING UNIFORM.

Claim 2

THE METHOD OF TREATING A KNITTED TEXTILE FABRIC COMPRISED OF SUPERPOLYAMIDE MULTI-FILAMENT YARN OF WHICH THE INDIVIDUAL FILAMENTS ARE CONTINUOUS, WHICH COMPRISES SUBJECTING SAID FABRIC TO AN AQUEOUS BATH CONTAINING A SOLUTION OF THE ORDER OF FOUR TO SIX PERCENT, BASED ON THE WEIGHT OF THE SOLUTION, OF A CHEMICAL FIBER-CURLING AGENT FOR SUPERPOLYAMIDES, SAID AGENT CONSISTING ESSENTIALLY OF A CRYSTALLIZED PHENOL, AND SIMULTANEOUSLY IMPARTING PULSE TRAINS OF ULTRA-SONIC ACOUSTIC WAVE OSCILLATIONS TO THE BATH THE FREQUENCIES OF SAID OSCILLATIONS BEING WITHIN THE RANGE OF 20,000 TO 60,000 CYCLES PER SECOND, THE DURATION OF SUCH TREATMENT IN SAID AQUEOUS BATH BEING NOT LONGER THAN 15 SECONDS, WHEREBY RESPECTIVE INDIVIDUAL ONES OF SAID CONTINUOUS FILAMENTS BECOME CURLED AND SPREAD APART AT PORTIONS THEREOF BETWEEN CROSSING POINTS OF THE KNITTED FILAMENTS, THE EFFECT OVER THE FABRIC BEING UNIFORM.