Uniform nonwoven material and laminate and process therefor
    2.
    发明申请
    Uniform nonwoven material and laminate and process therefor 有权
    均匀的非织造材料及其制造方法

    公开(公告)号:US20040102122A1

    公开(公告)日:2004-05-27

    申请号:US10301122

    申请日:2002-11-21

    摘要: The present invention provides continuous fiber nonwoven webs with high material formation uniformity and MD-to-CD balance of fiber directionality and material properties, as measured by a MD:CD tensile ratio of 1.2 or less, and desirably of about 1.0 or less, and laminates of the nonwoven webs. The invention also includes a method for forming the nonwoven webs wherein the fiber production apparatus is oriented at an angle less than 90 degrees to the MD direction and the fibers are subjected to deflection by a deflector oriented at an angle B with respect to the centerline of the fiber production apparatus where B is about 10 to about 80 degrees.

    摘要翻译: 本发明提供了通过MD:CD拉伸比为1.2或更小,期望为约1.0或更低而测量的,具有高的材料形成均匀性和纤维方向性和材料性质的MD-to-CD平衡的连续纤维非织造纤维网,以及 非织造纤维网的层压制品。 本发明还包括一种用于形成非织造纤维网的方法,其中纤维生产设备以与MD方向成小于90度的角度定向,并且纤维经过偏转器的偏转,该偏转器以相对于 其中B为约10至约80度的纤维生产设备。

    Nonwoven nylon and polyethylene fabric
    3.
    发明申请
    Nonwoven nylon and polyethylene fabric 审中-公开
    无纺尼龙和聚乙烯织物

    公开(公告)号:US20040043689A1

    公开(公告)日:2004-03-04

    申请号:US10654324

    申请日:2003-09-03

    IPC分类号: D04H003/16

    摘要: This invention relates to a nonwoven fabric made from a nylon and polyethylene blend. The addition of polyethylene enhances specific properties such as softness, lower production cost, improved process capabilities, and ease of further downstream processing such as bonding to other fabrics or itself.

    摘要翻译: 本发明涉及由尼龙和聚乙烯共混物制成的无纺布。 聚乙烯的添加增强了诸如柔软性,降低生产成本,改进的工艺能力以及进一步下游加工(例如粘合到其它织物或其自身)的易于进行的特性。

    Nonwoven web die and nonwoven webs made therewith
    5.
    发明申请
    Nonwoven web die and nonwoven webs made therewith 失效
    非织造纤维网和非织造纤维网

    公开(公告)号:US20030236046A1

    公开(公告)日:2003-12-25

    申请号:US10177446

    申请日:2002-06-20

    IPC分类号: B32B001/00 D04H003/16

    摘要: Melt blown or spun bond nonwoven webs are formed by flowing fiber-forming material through a die cavity having a substantially uniform residence time and then through a plurality of orifices to form filaments, using air or other fluid to attenuate the filaments into fibers and collecting the attenuated fibers as a nonwoven web. Each die orifice receives a fiber-forming material stream having a similar thermal history. The physical or chemical properties of the nonwoven web fibers such as their average molecular weight and polydispersity can be made more uniform. Wide nonwoven webs can be formed by arranging a plurality of such die cavities in a side-by-side relationship. Thicker or multilayered nonwoven webs can be formed by arranging a plurality of such die cavities atop one another.

    摘要翻译: 熔融吹制或纺粘非织造纤维网通过使纤维形成材料流过具有基本均匀的停留时间的模腔而形成,然后通过多个孔以形成长丝,使用空气或其它流体将长丝衰减成纤维并收集 减弱的纤维作为非织造纤维网。 每个模头孔接收具有相似热历史的纤维形成材料流。 可以使非织造纤维网的物理或化学性质如其平均分子量和多分散性更均匀。 可以通过以并排关系布置多个这样的模腔来形成宽的非织造纤维网。 可以通过将多个这样的模腔布置在彼此上方而形成较厚的或多层的非织造纤维网。

    High efficiency ashrae filter media
    6.
    发明申请
    High efficiency ashrae filter media 审中-公开
    高效灰尘过滤介质

    公开(公告)号:US20030203696A1

    公开(公告)日:2003-10-30

    申请号:US10255366

    申请日:2002-09-26

    摘要: A filter media having an increased efficiency is provided. The filter media includes a middle filtering layer formed from at least one meltblown layer and having a dust entering side and a dust exiting side. A first outer layer is disposed on the dust entering side of the filter media and is formed from a meltblown polymer fiber web, and a second outer supporting layer, or backing, is disposed on the dust exiting side of the filter media, and is formed from a spunbond polymer fiber web. In an exemplary embodiment, the middle filtering layer includes a first, upstream meltblown layer and a second, downstream meltblown layer. The first, upstream layer is preferably formed from fibers having a diameter greater than a diameter of the fibers forming the second, downstream layer. The filter media is particularly useful to form ASHRAE filters for applications including heating, refrigeration, and air conditioning filtration.

    摘要翻译: 提供了具有提高效率的过滤介质。 过滤介质包括由至少一个熔喷层形成并具有灰尘进入侧和灰尘排出侧的中间过滤层。 第一外层设置在过滤介质的灰尘进入侧,并且由熔喷聚合物纤维网形成,并且第二外部支撑层或背衬设置在过滤介质的灰尘离开侧,并形成 来自纺粘聚合物纤维网。 在示例性实施例中,中间过滤层包括第一上游熔喷层和第二下游熔喷层。 第一上游层优选由直径大于形成第二下游层的纤维的直径的纤维形成。 过滤介质特别适用于形成用于包括加热,制冷和空调过滤的应用的ASHRAE过滤器。

    Lightweight nonwoven material and method of producing
    7.
    发明申请
    Lightweight nonwoven material and method of producing 审中-公开
    轻质非织造材料及其制造方法

    公开(公告)号:US20030186612A1

    公开(公告)日:2003-10-02

    申请号:US10194321

    申请日:2002-07-15

    申请人: Avgol Ltd.

    摘要: A lightweight nonwoven material having hydrophilic characteristics is described. The nonwoven material includes at least three layers wherein a first layer is spunlaid, a second layer is meltblown, and a third layer is spunlaid, the first and third layers being external layers. The basis weight of the nonwoven material is 13.5 gsm or less and the basis weight of the second meltblown layer is 3.5 gsm or less, preferably less than 3.0 gsm, and more preferably less than 2.5 gsm. Hydrophilicity is imparted to the nonwoven material by inclusion of a surfactant additive in an extrusion melt during formation of fibers, or by topical treatment following formation of the layers of the nonwoven material. The method of making the nonwoven material involves formation of the layers thereof as continuous fibers and forming the layers in a continuous sequential manner, i.e., a subsequent layer being formed on top of a preceding layer or layers.

    摘要翻译: 描述了具有亲水特性的轻质非织造材料。 非织造材料包括至少三层,其中第一层被纺丝,第二层熔喷,第三层被纺丝,第一层和第三层是外层。 非织造材料的单位面积重量为13.5gsm以下,第二熔喷层的单位面积重量为3.5gsm以下,优选为3.0gsm以下,更优选为2.5gsm以下。 通过在形成纤维期间在挤出熔融物中包含表面活性剂添加剂,或通过在形成无纺材料层之后的局部处理,赋予非织造材料亲水性。 制造非织造材料的方法包括将其层形成为连续纤维并以连续顺序的方式形成层,即在之前的层或顶层上形成的后续层。

    Nonwoven thermoplastic elastomer fabric roll and method and apparatus for making same
    8.
    发明申请
    Nonwoven thermoplastic elastomer fabric roll and method and apparatus for making same 审中-公开
    无纺布热塑性弹性体织物卷及其制造方法和装置

    公开(公告)号:US20030119411A1

    公开(公告)日:2003-06-26

    申请号:US10273600

    申请日:2002-10-18

    IPC分类号: D04H003/16 D01D005/12

    摘要: The invention provides a thermoplastic elastomer nonwoven fabric roll that exhibits minimal longitudinal wrinkles and minimal delayed restoration when unrolled, and a method and apparatus for producing the same. Thermoplastic elastomer filaments that have been melt-spun are piled on a belt conveyor thereby forming a sheet of nonwoven fabric, that is guided to a rotating roller disposed above the transportation zone of the belt conveyor and peeled off therefrom. Since minimal tension is applied to the nonwoven fabric during processing, the nonwoven fabric can be unrolled with little stretching by applying relatively little tension to the nonwoven fabric. By the method of this invention, a nonwoven fabric roll with unrolling tension of 0.25 g/cm/basis-weight or less can be formed.

    摘要翻译: 本发明提供一种热塑性弹性体非织造布卷,其展现出最小的纵向皱纹和最小的延展恢复时间,以及用于制造它的方法和装置。 已经熔融纺丝的热塑性弹性体长丝堆积在带式输送机上,从而形成一片非织造织物,被引导到设置在带式输送机的输送区上方并从其剥离的旋转辊。 由于在加工过程中对无纺布施加最小的张力,所以通过对无纺织物施加相对较小的张力,无纺布可以以几乎不拉伸的方式展开。 通过本发明的方法,可以形成具有0.25g / cm 2 /重量或更小的展开张力的无纺布卷。

    Liquid responsive materials and personal care products made therefrom
    9.
    发明申请
    Liquid responsive materials and personal care products made therefrom 审中-公开
    液体响应材料和由其制成的个人护理产品

    公开(公告)号:US20030087574A1

    公开(公告)日:2003-05-08

    申请号:US10226722

    申请日:2002-08-23

    摘要: There is provided a new structural composite comprising nonwoven fabric, compressed in the presence of a temporary bodily-fluid soluble binder, which will spring back upon insult of body fluids to nearly its original, uncompressed thickness, in order to decrease the gap between the product and the wearer's body. A suitable web is a vertically oriented or nullZ-directonallynull oriented web which may be made from a variety of synthetic polymeric fibers. Suitable bodily-fluid soluble binders include polyvinyl alcohol (PVOH), polyvinyl pyrrilidone (PVP), polyethylene oxide (PEO), and blends thereof. The binder may be added to the nonwoven by various means such as spraying, dipping, and the like. The soluble binder is present in an amount effective to hold the nonwoven in a compressed state until sufficient body fluid passes through the nonwoven, dissolving the temporary binder, and releasing the nonwoven to almost its original thickness. These materials are suitable for use in personal care products like diapers, training pants, incontinence products, bandages, and sanitary napkins.

    摘要翻译: 提供了一种新的结构复合材料,其包括非织造织物,其在临时体液可溶性粘合剂存在下被压缩,所述临时体液可溶性粘合剂将在体液损伤几乎达到其原始未压缩厚度时弹回,以便减少产品之间的间隙 和穿戴者的身体。 合适的纤维网是可以由各种合成聚合物纤维制成的垂直取向或“Z-直接”取向的纤维网。 合适的体液可溶性粘合剂包括聚乙烯醇(PVOH),聚乙烯吡咯烷酮(PVP),聚环氧乙烷(PEO)及其共混物。 粘合剂可以通过各种手段如喷涂,浸渍等加入到非织造材料中。 可溶性粘合剂以有效地将非织物保持在压缩状态的量存在,直到足够的体液通过非织造织物,溶解临时粘合剂,并将非织造材料释放到几乎其原始厚度。 这些材料适用于个人护理产品,如尿布,训练裤,失禁产品,绷带和卫生巾。