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    • 7. 发明授权
    • Apparatus for making a spunbond web
    • 用于制造纺粘网的装置
    • US07762800B2
    • 2010-07-27
    • US12146573
    • 2008-06-26
    • Hans-Georg GeusDetlef Frey
    • Hans-Georg GeusDetlef Frey
    • D01D5/092D01D5/098
    • D04H3/16D01D5/0985
    • An apparatus for making a spunbond web has a deposition surface, a spinneret above the surface for producing filaments that move downward along a path toward the surface, and a cooling chamber below the spinneret. Cool process air is supplied to the chamber to cool the filaments as they pass downward through the chamber. A laterally closed stretching unit downstream of the cooling chamber has laterally closed side walls that have portions that diverges downward. A connecting region between the stretching unit and the cooling chamber substantially excludes access of air from outside to the filaments as they pass from the cooling chamber to the stretching unit so that the filaments drop from the stretching unit onto the deposition surface.
    • 用于制造纺粘纤维网的装置具有沉积表面,在表面上方的喷丝板,用于产生沿着朝向表面的路径向下移动的长丝,以及在喷丝板下方的冷却室。 冷却过程中的空气被供应到室中,以便当它们向下通过室时冷却细丝。 在冷却室下游的侧向闭合的拉伸单元具有侧向封闭的侧壁,其具有向下分叉的部分。 拉伸单元和冷却室之间的连接区域在从冷却室经过拉伸单元时基本上不包括从外部到细丝的空气进入,使得长丝从拉伸单元落到沉积表面上。