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Compositions useful for imparting durable hydrophilic polymer coatings to polyester, polypropylene or polyethylene fibers or fabrics comprising A) an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypro

Compositions useful for imparting durable hydrophilic polymer coatings to polyester, polypropylene or polyethylene fibers or fabrics comprising A) an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypropylene oxide polymer capped on one or both ends with an alkyl or ester group, said polymer having more than 4 propylene oxide units and an average molecular weight of at least about 300; B) a mixture of 1) an organic solvent, 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 3) a polypropylene oxide polymer capped on one or both ends with an alkyl or monoester group, said polymer having more than 4 propylene oxide units and an average molecular weight of at least about 300; C) an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypropylene glycol having an average molecular weight greater than 1100; or D) a mixture of 1) an organic solvent, 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 3) a polypropylene glycol having an average molecular weight greater than 1100 are disclosed.

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[ What is claimed is:] [1.] A method of imparting a durable hydrophilic coating to polyester, polypropylene or polyethylene fabrics or fibers comprising application to the surface of the fabric or fiber of an effective amount of a composition selected from the group consisting of:A. an aqueous dispe

[ What is claimed is:] [1.] A method of imparting a durable hydrophilic coating to polyester, polypropylene or polyethylene fabrics or fibers comprising application to the surface of the fabric or fiber of an effective amount of a composition selected from the group consisting of:A. an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and, 2) a polypropylene oxide polymer capped on one or both ends with an alkyl or ester group said polymer having more than 4 propylene oxide units and up, to about 2% ethylene oxide units, and an average molecular weight of at least about 300,B. a mixture of 1) an organic solvent, 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester; and 3) a polypropylene oxide polymer capped on one or both ends with an alkyl or ester group said polymer having more than 4 propylene oxide units and up to about 2% ethylene oxide units, and an average molecular weight of at least about 300,C. an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypropylene glycol having an average molecular weight greater than 1100, andD. a mixture of 1) an organic solvent 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 3) a polypropylene glycol having an average molecular weight greater than 1100.