Filter medium for air filter, filter pack, and air filter unit

    公开(公告)号:US10335728B2

    公开(公告)日:2019-07-02

    申请号:US15751128

    申请日:2016-07-27

    Abstract: Provided are a filter medium for an air filter capable of having extended life even when composed of embossable material. The filter medium (1) has a tensile elongation of 10% or greater, and includes a main collection layer (30) having a filing rate of 5% to 15%, a thickness of 0.35 mm to 0.70 mm, and a peak in a fiber diameter distribution at less than 1.0 μm and a peak at 1.0 μm or greater. An average fiber diameter of small fiber diameters of less than 1.0 μm is from 0.1 μm to less than 0.8 μm, and an average fiber diameter of large fiber diameters of 1.0 μm or greater is from 1.2 μm to less than 3.0 μm. A volume ratio of the fibers having the small fiber diameter to the fibers having the large fiber diameter is from 30:70 to 80:20.

    FLAT FIBER-REINFORCED PLASTIC STRAND, FLAT FIBER-REINFORCED PLASTIC STRAND SHEET, AND METHOD OF MANUFACTURING THE SAME
    7.
    发明申请
    FLAT FIBER-REINFORCED PLASTIC STRAND, FLAT FIBER-REINFORCED PLASTIC STRAND SHEET, AND METHOD OF MANUFACTURING THE SAME 审中-公开
    平板纤维增强塑料条,平板纤维增强塑料条板及其制造方法

    公开(公告)号:US20160151984A1

    公开(公告)日:2016-06-02

    申请号:US14904247

    申请日:2014-07-09

    Abstract: Provided is a flat fiber-reinforced plastic strand which is produced by curing a twisted resin-impregnated strand and has no disturbed fiber orientation, and a flat fiber-reinforced plastic strand sheet which is produced by using said flat fiber-reinforced plastic strands. According to a method of manufacturing the flat fiber-reinforced plastic strand 2, (a) a twisted resin-impregnated strand f2 in an uncured state, the strand including a plurality of reinforcing fibers f, is fed in a state of tension between a pair of heated steel belts 41A and 41B facing each other and making rotation movements; and (b) the resin-impregnated strand f2 is sandwiched and heated by the steel belts 41A and 41B, and pressurized from both sides of the strand f2 to form a cross section of the strand into a flat shape, and, with the shape being kept, a resin is cured and cooled.

    Abstract translation: 本发明提供一种扁平纤维增强塑料股线,其通过固化扭曲的树脂浸渍线材并且不受纤维取向的干扰而制成,以及通过使用所述扁平纤维增强塑料线材制造的扁平纤维增强塑料线材片材。 根据扁平纤维增强塑料股线2的制造方法,(a)未固化状态的扭曲树脂浸渍线f2,包含多根增强纤维f的线材以一对张力的状态供给 加热钢带41A和41B彼此面对并进行旋转运动; 和(b)树脂浸渍线f2被钢带41A和41B夹持并加热,并且从绞线f2的两侧加压形成扁平形状的绞合线的横截面,并且形状为 保持树脂固化和冷却。

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