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    • 4. 发明授权
    • Filter cartridge
    • 滤芯
    • US07033497B1
    • 2006-04-25
    • US09937129
    • 2000-03-30
    • Osamu YamaguchiShigenori FukudaHideo Nobuhara
    • Osamu YamaguchiShigenori FukudaHideo Nobuhara
    • B01D27/06B01D27/14
    • B01D39/1623
    • A filter cartridge formed by winding, in a twill construction, a band-shaped unwoven cloth, which contains thermoplastic fibers and at least a part of its fiber intersections are stuck thereon, so that a cylindrical shape can be obtained, wherein 1. two types of filtrating layers are used, 2. unwoven cloth having opening hole parts is used, 3. an end face seal part is provided on both end parts of the cartridge, 4. unwoven cloth having a tongue piece part is used, or 5. two or more pieced of unwoven cloth are wound simultaneously, whereby those characteristic of the filter cartridge such as liquid permeability, filterable life, and stability of filtration accuracy can be kept in balance with each other.
    • 通过以斜纹结构缠绕含有热塑性纤维和其纤维交点的至少一部分的带状无纺布形成的滤筒,从而可以获得圆筒形状,其中1.两种类型 使用过滤层,2.使用具有开孔部的无纺布,3.在筒的两端部设置端面密封部,4.使用具有舌片部的无纺布,或者5。 或更多的无纺布接头被同时缠绕,从而可以保持滤筒的特性,例如液体渗透性,可过滤寿命和过滤精度的稳定性。