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Process of spinning multifilament thread, fibrous yarn, polyester fibrous yarn and cord comprising the polyester fibrous yarn
Process of spinning multifilament thread, fibrous yarn, polyester fibrous yarn and cord comprising the polyester fibrous yarn
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机译:复丝线,纤维纱,聚酯纤维纱和包含该聚酯纤维纱的帘线的纺丝方法
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摘要
A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.
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