Making a dyed flameproof fabric

Claim 1

THE METHOD OF MANUFACTURING AN EVENLY DYED, LIGHTWEIGHT, FLEXIBLE, FLAMEPROOF FABRIC WHICH RETAINS ITS FLAMEPROOF CHARACTERISTICS AFTER LAUNDERING AND CLEANING, WHICH COMPRISES FORMING A CELLULOSIC FIBER-REINFORCED ASBESTOS FABRIC HAVING AN ASBESTOS CONTENT OF APPROXIMATELY 30 73% BY WEIGHT BY CONVENTIONAL WEAVING METHODS, IMPARTING DURABLE FLAMEPROOF PROPERTIES TO SAID FABRIC BY SUBSTANTIALLY UNIFORMLY COATING WITH AN INORGANIC FLAMEPROOFING COMPOSITION COMPRISING ANTIMONY OXIDE AND WITH A WATER INSOLUBLE SOLID THERMOPLASTIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL CHLORIDE-ACETATE COPOLYMERS, CHLORINATED RUBBER, AND NEOPRENE, SAID FLAMEPROOFING COMPOSITION AND SAID RESIN BEING PROPORTIONED IN AMOUNTS SUFFICIENT TO COOPERATE AT FLAME TEMPERATURES TO EFFECT FLAMEPROOFING OF SAID FABRIC, IN AN AMOUNT SUFFICIENT TO EFFECT A FINAL COATING SOLIDS CONTENT OF AT LEAST APPROXIMATELY 7% BY WEIGHT, AND AN INORGANIC COMPOUND CONTENT OF AT LEAST APRROXIMATELY 4 1/2% BY WEIGHT OF THE FABRIC, HEATING TO FUSE AND CURE SAID RESIN, AND IMPARTING DECORATIVE FAST COLOR TO SAID YARNS BY DYEING THEM WITH A VAT DYEING PROCEDURE WHEREIN THE FIBRES ARE TREATED WITH THE VAT DYE IN THE ALKALINE LEUCO STATE AND THEN THE DYE REOXIDIZED.

Claim 2

THE METHOD OF MANUFACTURING AN EVENLY DYED, LIGHTWEIGHT, FLEXIBLE, FLAMEPROOF FABRIC WHICH RETAINS ITS FLAMEPROOF CHARACTERISTICS AFTER LAUNDERING AND CLEANING, WHICH COMPRISES FORMING A CELLULOSIC FIBER-REINFORCED ASBESTOS FABRIC HAVING AN ASBESTOS CONTENT OF APPROXIMATELY 30 73% BY WEIGHT BY CONVENTIONAL WEAVING METHODS, IMPARTING DURABLE FLAMEPROOF PROPERTIES TO SAID FABRIC BY SUBSTANTIALLY UNIFORMLY COATING WITH AN INORGANIC FLAMEPROOFING COMPOSITION COMPRISING ANTIMONY OXIDE AND WITH A WATER INSOLUBLE SOLID THERMOPLASTIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL CHLORIDE-ACETATE COPOLYMERS, CHLORINATED RUBBER, AND NEOPRENE, SAID FLAMEPROOFING COMPOSITION AND SAID RESIN BEING PROPORTIONED IN AMOUNTS SUFFICIENT TO COOPERATE AT FLAME TEMPERATURES TO EFFECT FLAMEPROOFING OF SAID FABRIC, IN AN AMOUNT SUFFICIENT TO EFFECT A FINAL COATING SOLIDS CONTENT OF AT LEAST APPROXIMATELY 7% BY WEIGHT, AND AN INORGANIC COMPOUND CONTENT OF AT LEAST APRROXIMATELY 4 1/2% BY WEIGHT OF THE FABRIC, HEATING TO FUSE AND CURE SAID RESIN, AND IMPARTING DECORATIVE FAST COLOR TO SAID YARNS BY DYEING THEM WITH A VAT DYEING PROCEDURE WHEREIN THE FIBRES ARE TREATED WITH THE VAT DYE IN THE ALKALINE LEUCO STATE AND THEN THE DYE REOXIDIZED.