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    • 77. 发明申请
    • Low turbulence die assembly for meltblowing apparatus
    • 用于熔喷设备的低湍流模组件
    • US20060141086A1
    • 2006-06-29
    • US11022381
    • 2004-12-23
    • Bryan HaynesMichael Cook
    • Bryan HaynesMichael Cook
    • B28B5/00
    • D01D4/025
    • An apparatus for forming meltblown material from a molten polymer includes a die configured with channels in the tip of the die through which molten polymer is extruded for forming meltblown fibers. Air plates are disposed relative to the die tip to define air channels proximate to the die tip for directing attenuating air against the molten polymer fibers extruded from the tip. The air channels include a zone of convergence adjacent the apex of the die tip at an included angle that is within a range of about 10 degrees to about 20 degrees such that each of the air channels defines a convergence angle with respect to a longitudinal axis of the polymer channels of between about 5 degrees to about 10 degrees.
    • 用于从熔融聚合物形成熔喷材料的设备包括:模具顶端设置有通道的模具,通过该模具挤出熔融聚合物以形成熔喷纤维。 空气板相对于模具顶端布置以限定靠近模头尖端的空气通道,用于将衰减的空气引导到从尖端挤出的熔融聚合物纤维上。 空气通道包括以约10度至约20度的范围内的夹角相邻于模头顶端的会聚的区域,使得每个空气通道限定相对于纵向轴线的纵向轴线的会聚角 聚合物通道在约5度至约10度之间。