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    • 3. 发明授权
    • Apparatus for producing a spunbond
    • 用于生产纺粘的装置
    • US4627811A
    • 1986-12-09
    • US692305
    • 1985-01-17
    • Wolfgang GreiserHans Wagner
    • Wolfgang GreiserHans Wagner
    • D04H3/03D04H3/16B29C47/14B29C47/88
    • D01D5/0985
    • An apparatus for producing a spunbond by pneumatic take-off and laying of melt-spun filaments comprises a superatmospheric pressure chamber which is connected to the melt spinneret in a gas-tight manner and has discharge orifices for the filaments. Said superatmospheric pressure chamber tapers weekly conically into a drawing cell. The aperture angle of the weakly conical superatmospheric pressure chamber is less than 7.degree.. The filaments are spun in the form of a linear curtain into the interior of the superatmospheric pressure chamber which is just as wide as the curtain. One side of the conical portion and of the drawing cell is moveable and, at the start of the melt spinning, can be moved away from the other wall, so that the start-up of spinning is facilitated.
    • 用于通过气流输送和铺放熔纺丝来生产纺粘的装置包括超大气压力室,其以气密方式连接到熔喷丝板并具有用于长丝的排出孔。 所述超大气压力室每周锥形地逐渐变细成拉制单元。 弱圆锥形超大气压力室的孔径角小于7°。 长丝以线性窗帘的形式旋转到超大气压力室的内部,其与帘幕一样宽。 锥形部分和拉伸单元的一侧是可移动的,并且在熔体纺丝开始时可以移开远离另一个壁,从而便于纺丝的启动。