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    • 4. 发明公开
    • Stretchable nonwoven barrier fabric method of making and use of same
    • Dehnbarer Sperrvliesstoff,Herstellverfahren und Anwendung。
    • EP0602613A1
    • 1994-06-22
    • EP93120161.0
    • 1993-12-14
    • KIMBERLY-CLARK CORPORATION
    • Levy, Ruth LisaBolian, Charles Edward, IIMorman, Michael TodPreston, Lynn Ellen
    • D04H1/56A41D31/00A41D13/12
    • D06C3/00A41D13/1209A41D31/00A41D2400/52A61F13/15203A61F13/514A61F2013/51429D04H1/56Y10S428/903Y10T442/601Y10T442/602Y10T442/637
    • A barrier fabric having stretch and recovery properties and a method of producing are disclosed. The method includes the steps of heating at least one nonwoven web containing meltblown non-elastic thermoplastic polymer fibers to a temperature at which the peak total energy absorbed by the nonwoven web of meltblown fibers is at least about 250 percent greater than the amount absorbed by the nonwoven web of meltblown fibers at room temperature; applying a tensioning force to neck the heated nonwoven web; and cooling the necked nonwoven web so that the nonwoven web has at least the same hydrostatic head and/or particulate barrier properties as the nonwoven web before necking. Also disclosed is a stretchable barrier fabric composed of a nonwoven web of meltblown non-elastomeric thermoplastic polymer fibers, the nonwoven web being heat treated so that it is adapted to stretch at least about 10 percent more than an identical untreated nonwoven web of meltblown non-elastomeric thermoplastic polymer fibers. The stretchable barrier fabric is adapted to provide a hydrostatic head of at least about 20 cm and/or a particle holdout efficiency of at least about 40 percent for particles having an average size greater than 0.1 µm. The stretchable barrier fabric may be a component of a multilayer material and may be used in disposable protective garments.
    • 公开了具有拉伸和恢复性能的阻隔织物和制造方法。 该方法包括以下步骤:将含有熔喷非弹性热塑性聚合物纤维的至少一个非织造纤维网加热到熔喷纤维非织造纤维网吸收的峰值总能量比由熔喷纤维吸收的量至少大约250% 熔喷纤维非织造纤维网在室温下; 施加张紧力以使加热的非织造纤维网颈缩; 并冷却颈缩的非织造纤维网,使非织造纤维网在颈缩之前至少具有与非织造纤维网相同的静水压头和/或颗粒阻隔性能。 还公开了一种由熔喷非弹性体热塑性聚合物纤维的非织造纤维网组成的可拉伸阻隔织物,该非织造纤维网被热处理,使得其适于比相同的未处理的非熔喷非织造纤维网拉伸至少约10% 弹性体热塑性聚合物纤维。 适用于平均尺寸大于0.1μm的颗粒,可拉伸阻隔织物适于提供至少约20cm的静水压头和/或至少约40%的颗粒保持效率。 可拉伸阻隔织物可以是多层材料的组分,并且可以用在一次性防护服装中。
    • 5. 发明公开
    • Gathered nonwoven elastic web
    • Nichtgewebtes弹性体Plissee。
    • EP0212284A2
    • 1987-03-04
    • EP86109998.4
    • 1986-07-21
    • KIMBERLY-CLARK CORPORATION
    • Morman, Michael Tod
    • D04H1/56D04H13/00
    • D04H1/56D04H1/559
    • A process for producing a gathered nonwoven elastic web including a nonwoven elastic web joined to a fibrous nonwoven gathered web is disclosed. The process includes the steps of (a) providing a nonwoven elastic web (22) having a relaxed unbiased length and a stretched, biased length; (b) stretching (34) the nonwoven elastic to its stretched, biased length; (c) forming a fibrous nonwoven gatherable web (50) directly upon a surface of the nonwoven elastic web while maintaining the nonwoven elastic web at its stretched, biased length; (d) forming a composite nonwoven elastic web (52) by joining the fibrous nonwoven elastic web to the nonwoven elastic web while continuing to maintain the nonwoven elastic web at its stretched length; and (e) relaxing the nonwoven elastic web to its relaxed length to gather the fibrous nonwoven gatherable web. In some embodiments, joining of the fibrous nonwoven gatherable web to the nonwoven elastic web may be separable so that the gathered nonwoven web may be separated from the elastic nonwoven web after the gathering step.
    • 公开了一种用于生产聚集的非织造弹性纤维网的方法,其包括连接到纤维非织造聚酯纤维网上的非织造弹性纤维网。 该方法包括以下步骤:(a)提供具有松弛无偏长度和拉伸偏压长度的非织造弹性腹板(22) (b)将非织造弹性拉伸(34)到其拉伸偏压长度; (c)将非织造材料可收集纤维网直接形成在非织造弹性纤维网的表面上,同时将非织造弹性纤维网保持在其拉伸的偏压长度; (d)通过将纤维性非织造弹性纤维网与非织造弹性纤维网接合而形成复合非织造弹性纤维网,同时继续将非织造弹性纤维网保持在其拉伸长度; 和(e)将非织造弹性纤维网放松到其松弛的长度以聚集纤维性非织造布可收集纤维网。 在一些实施例中,将纤维状非织造物可收紧纤维网与非织造弹性纤维网的接合可以是可分离的,使得聚集的非织造纤维网在收集步骤之后可以与弹性非织造纤维网分离。
    • 8. 发明公开
    • Gathered nonwoven elastic web
    • 聚集的非织造弹性网
    • EP0212284A3
    • 1989-11-15
    • EP86109998.4
    • 1986-07-21
    • KIMBERLY-CLARK CORPORATION
    • Morman, Michael Tod
    • D04H1/56D04H13/00
    • D04H1/56D04H1/559
    • A process for producing a gathered nonwoven elastic web including a nonwoven elastic web joined to a fibrous nonwoven gathered web is disclosed. The process includes the steps of (a) providing a nonwoven elastic web (22) having a relaxed unbiased length and a stretched, biased length; (b) stretching (34) the nonwoven elastic to its stretched, biased length; (c) forming a fibrous nonwoven gatherable web (50) directly upon a surface of the nonwoven elastic web while maintaining the nonwoven elastic web at its stretched, biased length; (d) forming a composite nonwoven elastic web (52) by joining the fibrous nonwoven elastic web to the nonwoven elastic web while continuing to maintain the nonwoven elastic web at its stretched length; and (e) relaxing the nonwoven elastic web to its relaxed length to gather the fibrous nonwoven gatherable web. In some embodiments, joining of the fibrous nonwoven gatherable web to the nonwoven elastic web may be separable so that the gathered nonwoven web may be separated from the elastic nonwoven web after the gathering step.
    • 公开了一种用于生产聚集的非织造弹性织物的方法,所述非织造弹性织物包括连接到纤维非织造聚集织物上的非织造弹性织物 该方法包括以下步骤:(a)提供具有松弛无偏长度和拉伸偏压长度的非织造弹性织物(22); (b)将所述非织造弹性体拉伸(34)至其拉伸的偏压长度; (c)直接在所述非织造弹性织物的表面上形成纤维状非织造可收集织物(50),同时将所述非织造弹性织物保持在其拉伸的,偏置的长度; (d)通过将纤维性非织造弹性织物连接到非织造弹性织物上同时继续将非织造弹性织物保持在其拉伸长度,形成复合非织造弹性织物(52); 和(e)将非织造弹性织物放松到其松弛的长度以聚集纤维状非织造可收集织物。 在一些实施例中,纤维无纺可收集织物与非织造弹性织物的接合可以是可分离的,使得可以在收集步骤之后将聚集的非织造织物与弹性非织造织物分离。