Process of conditioning yarn and fabric materials to render them receptive to dyes having affinity for cellulosic materials and such conditioned yarn and fabric materials

Claim 1

THE PROCESS OF CONDITIONING YARN AND FABRIC MATERIALS CONSTITUTED OF A BLEND OF NON-CELLULOSIC AND CELLULOSIC FIBERS TO RENDER THEM RECEPTIVE TO DYES FOR CELLULOSIC MATERIALS, WHICH PROCESS COMPRISES APPLYING TO SAID MATERIALS A COLLOIDAL SOL CONTAINING ABOUT 4% FIBROUS BOEHMITE, ABOUT 0.25% OF THE SODIUM SALT OF A C10 TO C18 ALIPHATIC IMIDAZOLINE CARBOXYLIC ACID, AND THE REST WATER IN AMOUNT TO SUPPLY TO THE SAID MATERIALS ABOUT 80% BY WEIGHT OF SAID SOL, DRYING AND THEN CURING THE THUS TREATED MATERIAL AT A TEMPERATURE OF 250* F. TO 450* F. FOR FROM 30 SECONDS TO 600 SECONDS TO BOND THE FIBROUS BOEHMITE TO THE MATERIALS, THEREAFTER APPLYING TO THE FIBROUS BOEHMITE-CONTAINING MATERIALS AN ALKALINE SOLUTION OF HYDROXYETHYLCELLULOSE, CONTAINING ABOUT 5% OF HYDROXYETHYLCELLULOSE PRODUCED BY REACTING ALKALI CELLULOSE WITH ETHYLENE OXIDE SO THAT FROM ABOUT 2% TO 10% ETHYLENE OXIDE IS COMBINED WITH THE ALKALI CELLULOSE, ABOUT 6.25% SODIUM HYDROXIDE, AND ABOUT 0.25% OF THE SODIUM SALT OF A C10 TO C18 ALIPHATIC IMIDAZOLINE CARBOXYLIC ACID IN AMOUNT TO APPLY TO SAID FIBROUS BOEHMITE-CONTAINING MATERIAL ABOUT 80% BY WEIGHT OF SAID HYDROXYETHYLCELLULOSE SOLUTION, STEAMING THE THUS TREATED MATERIALS AT A TEMPERATURE OF 220* F. TO 250* F. FOR FROM 10 SECONDS TO 50 SECONDS, AND THEREAFTER COAGULATING AND REGENERATING THE HYDROXYETHYLCELLULOSE THUS APPLIED TO EACH MATERIAL TO CONVERT IT TO WATER-INSOLUBLE HYDROXYETHYLCELLULOSE FILM BONDED TO THE BOEHMITE-CONTAINING MATERIAL.