High twist polyester multifilament yarn and fabric made therefrom
AssigneeTeijin Limited
InventorsAkio Kimura, Osamu Wada, Kohichi Iohara, Michikage Matsui
Life of this patent
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Abstract
A high twist polyester multifilament yarn having a twist of a twist multiplier K within a range between 15,000 and 25,000, made from polyester filaments consisting essentially of a copolymer of two or more monomers selected from the group consisting of ethylene terephthalate, trimethylene terephthalate and tetramethylene terephthalate and/or a blend of two or more polymers of the respective monomers and having a breaking elongation of not more than 60% and a shrinkage in boiling water of not more than 6%. A woven or knitted crepe fabric obtained by employing such a high twist yarn has a desirable pebble configuration.
Claims7
A high twist polyester multifilament yarn having a twist of a twist multiplier K within a range of 15,000 to 25,000 made from polyester filaments consisting essentially of at least one member selected from the group consisting of a copolymer of at least two units selected from the group consisting of ethylene terephthalate, trimethylene terephthalate, and tetramethylene terephthalate, a blend of at least two polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephtalate and a blend of at least one of said polymers and at least one of said polymers having a breaking elongation of not more than 60% and a shrinkage in boiling water of not more than 6%.
A high twist polyester multifilament yarn having a twist of a twist multiplier K within a range of 15,000 to 25,000, made from polyester filaments consisting essentially of a mixture of at least one member selected from the group consisting of a copolymer of at least two units selected from the group consisting of ethylene terephthalate, trimethylene terephthalate and tetramethylene terephthalate, a blend of at least two polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate, and polytetramethylene teraphthalate and a blend of at least one of said polymers and at least one said copolymers with 3% to 15% by weight, based on the weight of said polyester, of a noncrystalline polymer, said mixture having a breaking elongation of not more than 60% and a shrinkage in boiling water of not more than 6%.
Dependencies are inferred from the claim text.