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1. 发明公开

EP0602613A1 Stretchable nonwoven barrier fabric method of making and use of same 失效
标题翻译： Dehnbarer Sperrvliesstoff，Herstellverfahren und Anwendung。
公开(公告)号：EP0602613A1
公开(公告)日：1994-06-22
申请号：EP93120161.0
申请日：1993-12-14
申请人： KIMBERLY-CLARK CORPORATION
发明人： Levy, Ruth Lisa , Bolian, Charles Edward, II , Morman, Michael Tod , Preston, Lynn Ellen
IPC分类号： D04H1/56 , A41D31/00 , A41D13/12
CPC分类号： D06C3/00 , A41D13/1209 , A41D31/00 , A41D2400/52 , A61F13/15203 , A61F13/514 , A61F2013/51429 , D04H1/56 , Y10S428/903 , Y10T442/601 , Y10T442/602 , Y10T442/637
摘要： 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.
摘要翻译：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。

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