Polyamide yarn

Claim 1

A CONTINUOUS FILAMENT POLYMIDE YARN WHICH FIRST COATED WITH A FIRST FINISH COMPOSITION CONSISTING ESSENTIALLY OF 30 TO 60 PARTS BY WEIGHT OF WHITE MINERAL OIL HAVING A BOILING POINT OF BETWEEN 265*C., 25 TO 50 PARTS BY WEIGHT OF AN ETHOXYLATED PHOSPHATED OLEYL ALCOHOL, 2 TO 10 PARTS BY WEIGHT OF A SULFONATED SUCCINIC ACID ESTER OF OLEYL ALCOHOL, AND 5 TO 10 PARTS BY WEIGHT OF AN OXIDIZED POLYETHYLENE WAX HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 1,000 AND ABOUT 3,000 AND CONTAINING 3 TO 6 PERCENT OF OXYGEN BY WEIGHT, THEN COATED WITH A SECOND FINISH COMPOSITION CONSISTING ESSENTIALLY OF 60 TO 70 PARTS BY WEIGHT OF AN AQUEOUS DISPERSION OF COLLOIDAL SILICA CONTAINING ABOUT 25 TO 50 WEIGHT PERCENT SILICA IN THE FORM OF A STABLE SILICA SOL, AND 30 TO 40 PARTS BY WEIGHT OF A POLYETHYLENE GLYCOL ESTER OF A C6-C18 ALIPHATIC ACID, SAID POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT OF ABOUT 200 TO 600, AND THE WEIGHT RATIO OF SAID SILICA TO SAID POLYETHYLENE GLYCOL ESTER BEING BETWEEN 0.45 AND 0.70. SAID YARN BEING COATED WITH AN EFFECTIVE AMOUNT OF SAID FIRST FINISH COMPOSITION TO PROVIDE A WATER-RESISTANT OXIDIZED POLYETHYLENE WAX COATING THEREON OF BETWEEN 0.05 AND ABOUT 2 PERCENT BY WEIGHT OF THE YARN, AND SAID SECOND FINISH COMPOSITION BEING APPLIED TO THE YARN IN AN AMOUNT SUFFICIENT TO SUPPLY BETWEEN ABOUT 0.1 PERCENT AND ABOUT 0.6 PERCENT OF SILICA BASED ON THE WEIGHT OF THE YARN WHEREBY PROCESSIN OF SAID YAR THROUGH CONING OPERATIONS IS IMPROVED.