Abstract:
A rope (40) comprising a plurality of bundle groups (41), each of said bundle groups having a periphery and comprising a plurality of high strength fibers, at least one low coefficient of friction fiber (42) disposed around at least a portion of the periphery of at least one of the bundle groups.
Abstract:
Novel polyethylene multifilament yarn having high strength and high modulus and being substantially free from cohesion between single yarns is provided by a novel process which comprises employing a dry-wet spinning or gel-wet spinning method, drying single yarns containing an extractant separately from each other by vibrating them using a turbulent air flow, and heat-treating them under tension at temperatures in a specific range before drawing.
Abstract:
PROBLEM TO BE SOLVED: To provide a fishline obtained by using a stainless steel wire as a metal wire, produced by discovering a suitable condition for improving a tensile breaking strength characteristics of the metal wire by paying attention to the temperature and the tensile breaking strength characteristics of the metal wire subjected to high deformation wire drawing, and having improved bundling ability, curl resistance and water break characteristics as the fishline, and to provide a production method or the like thereof.SOLUTION: The fishline 2 that shows improved cohesion, curl resistance, drainage properties and so forth is produced by carrying out the wire drawing of a high deformation of from 95 to 99.5% as the total area-reducing ratio by using an austenite stainless steel wire obtained by subjecting the metal wire to solid solubilization treatment, accumulating low-temperature heat treatments in suitable conditions by each processing step of the metal wire, and/or utilizing the heat when forming a resin film on the fishline 2 to improve the mechanical strength characteristics of the metal wire, and twisting the resultant metal wires.
Abstract:
PROBLEM TO BE SOLVED: To provide a rope by which the amount of generated carbon dioxide can be reduced, and the strength of a fiber comprising a biomass-originated polymer inferior to that of a fiber comprising a petroleum-originated general-purpose polymer can be compensated by using the fiber comprising the biomass-originated polymer as a part of the rope without the rope constituted only of the conventional fiber comprising the petroleum-originated polymer. SOLUTION: The rope is constituted by intertwining or combining two or more strands 2. Each strand 2 exhibits two-layered structure of a sheath yarn 6 and a core yarn 5. At least a part of the sheath yarn 6 is constituted of the fiber comprising the biomass-originated polymer, or at least a part of the core yarn 5 is constituted of the fiber comprising the biomass-originated polymer. COPYRIGHT: (C)2008,JPO&INPIT