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Compositions of ethylene alkyl acrylate grafted onto polypropylene are dyeable with disperse or cationic dyes. A small amount of polyester may be include, along with a hydrophilic modifier comprising a monoglyceride and a salt of a liner alkyl. The hydrophilic modifier also acts as a compatibilizer

Compositions of ethylene alkyl acrylate grafted onto polypropylene are dyeable with disperse or cationic dyes. A small amount of polyester may be include, along with a hydrophilic modifier comprising a monoglyceride and a salt of a liner alkyl. The hydrophilic modifier also acts as a compatibilizer to bridge the polyester and the polypropylene. A process for dyeing polypropylene fibers comprises combining the polypropylene with a thermoplastic copolymer of ethylene and alkyl acrylates having 1 to 4 carbon atoms in the alkyl group into fibers, adding the polyester to the polypropylene matrix, spinning the composition into fibers, and exposing the fibers to a dye bath. The sulfonic group may be added to the polyester for exposing the fibers to a cationic dye.

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A polyolefin composition, comprising: (a) about 99 to 70% by weight polyolefin; (b) 0.1 to 15% by weight polyester; (c) a hydrophilic modifier in an amount by weight of from 0.1 to 2% of the composition, the hydrophilic modifier comprising a monoglyceride and a long chain hydrocarbon with a hydrophi

A polyolefin composition, comprising: (a) about 99 to 70% by weight polyolefin; (b) 0.1 to 15% by weight polyester; (c) a hydrophilic modifier in an amount by weight of from 0.1 to 2% of the composition, the hydrophilic modifier comprising a monoglyceride and a long chain hydrocarbon with a hydrophilic group; and (d) a selected amount of a polar group material selected from a group consisting of (1) an ethylene copolymer comprising 70 to 82% and about 30 to 18% by weight of an alkyl acrylate wherein the alkyl acrylate has 1 to 4 carbon atoms, the alkyl acrylate being present in an amount of from 0.2 to 3.0% by weight of the composition, (2) a maleic anhydride comprising about 0.1 to 10% by weight of the composition, and (3) an acrylic acid comprising about 0.1 to 2.0% by weight of the composition. A polyolefin composition, comprising: (a) about 99 to 70% by weight polyolefin; (b) 0.1 to 15% by weight polyester; and (c) a selected amount of a polar group material comprising an ethylene copolymer comprising 70 to 82% and about 30 to 18% by weight of an alkyl acrylate wherein the alkyl acrylate has 1 to 4 carbon atoms, the alkyl acrylate being present in an amount of from 0.2 to 3.0% by weight of the composition.