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US 4,980,227 AGranted
Netlike sheet and method for producing multilayer yarn for producing the same
AssigneeDiaTex, Inc.
InventorsKeji Sekiguchi, Takashi Fukushima
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AssigneeDiaTex, Inc.
InventorsKeji Sekiguchi, Takashi Fukushima
Estimating the term…
A netlike sheet comprises woven warp and weft yarns, either the warp yarns or the weft yarns being a five-layered yarn composed of two stretched layers of polyolefin resin and layers of polyolefin resin having a melting point lower than that of the former disposed between the two stretched layers an on the outer surfaces thereof and the other being the same the five-layered yarn or a three-layered yarn composed of a central stretched layer of polyolefin resin and layers of polyolefin resin having a melting point lower than that of the former, which are disposed on both side of the stretched layer, the warp and weft yarns being heat bonded at intersections of these yarns. The netlike sheet exhibits good stiffness and excellent retention of sheet-like shape and the meshes of the net are stable during using the same.
A netlike sheet comprising woven warp and weft yarns, either the warp yarns or the weft yarns being a five-layered yarn composed of two stretched layers of polyolefin resin each having a thickness of 15-55 microns and an alternating layer of polyolefin resin having a thickness of 1-5 microns and a melting point lower than that of the polyolefin in the stretched layers disposed between the two stretched layers and on the outer surfaces thereof, and the other being the same five-layered yarn or a three-layered yarn composed of a central stretched layer of polyolefin resin and an alternating layer of polyolefin resin having a melting point lower than that of the polyolefin in the central stretched layer disposed on both sides of the stretched layer, the warp and weft yarns being heat bonded at their intersections.
Dependencies are inferred from the claim text.