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AssigneeHyosung Corporation
InventorsHyun Gee CHUNG, Yeon Soo KANG
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The present invention relates to a spandex fiber and a method for manufacturing the same that is capable of providing excellent adhesive characteristics, by means of a hot melt adhesive, between the spandex fiber and a polypropylene nonwoven fabric or a polyethylene film, during a diaper-manufacturing process. The method for manufacturing a spandex fiber comprises the steps of: preparing a polyurethane urea solution as a spinning solution; and dry-spinning the spinning solution to obtain the spandex fiber, where the polyurethane urea solution contains, with respect to the weight of the solid content, about 0.1 to 30 wt. % of an ethylene vinyl acetate monomer or polymer, or a derivative thereof, a C9 hydrocarbon-based resin monomer or polymer, or a derivative thereof, a C5 hydrocarbon-based resin monomer or polymer, or a derivative thereof, or a C5/C9 hydrocarbon-based resin monomer or copolymer, or a derivative thereof.
A spandex fiber having improved adhesive characteristics with a hot melt adhesive, wherein in a manufacture of the spandex fiber using a polyurethane urea polymer, an ethylene vinyl acetate monomer or polymer, or a derivative thereof represented by the following chemical formula 1 is used as an adhesion enhancer in an amount of 0.1 to 30 wt. % to enhance the adhesive characteristics with the hot melt adhesive,
A spandex fiber having improved adhesive characteristics with a hot melt adhesive, wherein in a manufacture of the spandex fiber using a polyurethane urea polymer, a C9 hydrocarbon-based resin monomer or polymer, or a derivative thereof represented by the following chemical formula 2 is used as an adhesion enhancer in an amount of 0.1 to 30 wt. % to enhance the adhesive characteristics with the hot melt adhesive,
A spandex fiber having improved adhesive characteristics with a hot melt adhesive, wherein in a manufacture of the spandex fiber using a polyurethane urea polymer, a C5 hydrocarbon-based resin monomer or polymer, or a derivative thereof represented by the following chemical formula 3 is used as an adhesion enhancer in an amount of 0.1 to 30 wt. % to enhance the adhesive characteristics with the hot melt adhesive,
Dependencies are inferred from the claim text.