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    • 1. 发明授权
    • Process of making a yarn
    • 制作纱线的工艺
    • US06303063B1
    • 2001-10-16
    • US09330491
    • 1999-06-11
    • Ian RobertsDavid MacKenzie Hill
    • Ian RobertsDavid MacKenzie Hill
    • A61C1504
    • A61C15/041D01D5/16D01F6/04D01F6/06D01F6/30D01F6/46
    • A method of converting a plastics material into a yarn includes heating the material to melt it and pumping the melted material through an extrusion die (114) to form an extruded filament (116). The extruded filament is cooled and passed through a first draw roller assembly (122) while elevating the temperature of the filament. The filament (116) is heated in a heating zone (126) as it exits the first draw roller assembly. Thereafter the filament is passed through a second draw roller assembly (134) operating at a different linear speed to the first draw roller assembly (122). The filament (116) is spooled after exiting the second draw roller assembly (134).
    • 将塑料材料转化成纱线的方法包括加热材料以使其熔化并将熔化的材料泵送通过挤出模具(114)以形成挤出的丝线(116)。 挤出的长丝被冷却并且通过第一牵引辊组件(122),同时升高灯丝的温度。 当灯丝116离开第一牵引辊组件时,加热区126被加热。 此后,灯丝穿过以不同的线速度操作到第一牵引辊组件(122)的第二牵引辊组件(134)。 在离开第二牵引辊组件(134)之后卷绕丝(116)。