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    Method of making a fibrous electret web using a nonaqueous polar liquid
    1.
    发明授权
    Method of making a fibrous electret web using a nonaqueous polar liquid 失效
    使用非水极性液体制造纤维驻极体网的方法

    公开(公告)号：US06454986B1

    公开(公告)日：2002-09-24

    申请号：US09416216

    申请日：1999-10-08

    申请人： Philip D. Eitzman ,  Alan D. Rousseau ,  Marvin E. Jones ,  Seyed A. Angadjivand

    发明人： Philip D. Eitzman ,  Alan D. Rousseau ,  Marvin E. Jones ,  Seyed A. Angadjivand

    IPC分类号： D06M13127

    CPC分类号： A41D13/1146 ,  B01D39/163 ,  B03C3/28 ,  D06M13/127 ,  D06M13/144 ,  D06M13/148 ,  D06M13/188 ,  D06M13/248 ,  D06M13/345 ,  D06M13/402 ,  D06M23/10

    摘要： A method of charging fibrous webs with nonaqueous polar liquids. A web 20 that contains nonconductive fibers is wetted with a nonaqueous polar liquid 14. The web 20 is then substantially dried 22 to provide a fibrous electret web. The fibrous electret web can be used as a filter in a filtration face mask 40 that is adapted to cover the nose and mouth of the wearer. The present method has the advantage over known charging methods in that the nonaqueous liquid requires less energy for drying than is required for aqueous liquids. Additionally, many filter webs can be directly wetted with nonaqueous liquids, which cannot be easily wetted with aqueous liquids.

    摘要翻译： 用非极性极性液体填充纤维网的方法。 含有非导电纤维的纤维网20用非极性极性液体14润湿。然后将幅材20基本上干燥22以提供纤维驻极体网。 纤维驻极体网可用作过滤面罩40中的过滤器，该过滤面罩40适于覆盖穿戴者的鼻子和口部。 本方法优于已知的充电方法，因为与水性液体所需的非水液体相比，非水液体需要较少的干燥能量。 此外，许多过滤网可以用非水液体直接润湿，这不会容易用含水液体润湿。

    Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid
    2.
    发明授权
    Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid 有权
    从自由纤维和极性液体制造非织造纤维驻极体网的方法和装置

    公开(公告)号：US06375886B1

    公开(公告)日：2002-04-23

    申请号：US09415566

    申请日：1999-10-08

    申请人： Seyed A. Angadjivand ,  Michael G. Schwartz ,  Philip D. Eitzman ,  Marvin E. Jones

    发明人： Seyed A. Angadjivand ,  Michael G. Schwartz ,  Philip D. Eitzman ,  Marvin E. Jones

    IPC分类号： H05B716

    CPC分类号： D04H1/4382 ,  D04H1/4291

    摘要： A method and apparatus for charging fibers that contain a nonconductive polymer. A polar liquid 32, 34 is sprayed onto free-fibers 24, and the free-fibers 24 are then collected to form an entangled nonwoven fibrous web 25 that may contain a portion of the polar liquid. The nonwoven web 25 is then dried 38. By applying an effective amount of polar liquid 32, 34 onto the nonconductive free-fibers 24 before forming the nonwoven web 25, followed by drying 38, the individual fibers 24 become charged. The method and apparatus enable the fibers 24 to be charged during web manufacture without subsequent processing.

    摘要翻译： 一种用于装入含有非导电聚合物的纤维的方法和装置。 将极性液体32,34喷涂到自由纤维24上，然后收集自由纤维24以形成可包含一部分极性液体的缠结非织造纤维网25。 然后将非织造纤维网25干燥38.通过在形成非织造纤维网25之前将有效量的极性液体32,34施加到非导电自由纤维24上，随后干燥38，单个纤维24变成带电。 该方法和装置使纤维24能够在卷筒纸制造期间被充电而不后续处理。

    RESPIRATOR THAT HAS INWARD NOSE REGION FOLD WITH HIGH LEVEL CONFORMATION
    5.
    发明申请
    RESPIRATOR THAT HAS INWARD NOSE REGION FOLD WITH HIGH LEVEL CONFORMATION 审中-公开
    具有高水平配合的密封区域的呼吸器

    公开(公告)号：US20110315144A1

    公开(公告)日：2011-12-29

    申请号：US12823259

    申请日：2010-06-25

    申请人： Philip D. Eitzman ,  Dean R. Duffy

    发明人： Philip D. Eitzman ,  Dean R. Duffy

    IPC分类号： A62B18/02

    CPC分类号： A62B18/025 ,  A41D13/1123 ,  A62B23/025

    摘要： A flat fold filtering face piece respirator 10 that includes a mask body 12 and a harness 14. The mask body 12 includes a filtering structure 16 that contains a cover web 48, 50 and a filtration layer 52 that contains electrically-charged microfibers. The filtering structure 16 is folded over upon itself in a nose region 32 of the mask body 12 to be at least 1 centimeter or more wide and to extend across the upper perimeter of the mask body in a generally straight line when the respirator is in the folded condition. The filtering structure 16 has a deflection greater than about 0.5 millimeters and has a recoverability of at least 40% in the folded condition. A mask body having this construction is beneficial in that it does not need to use a nose foam to obtain a snug fit over the nose.

    摘要翻译： 包括面罩主体12和线束14的平折式过滤面件呼吸器10.面罩主体12包括过滤结​​构16，过滤结构16包含覆盖纤维网48,50和含有带电微纤维的过滤层52。 过滤结构16在面罩主体12的鼻部区域32中自身折叠成至少1厘米或更宽，并且当呼吸器处于 折叠条件。 过滤结构16具有大于约0.5毫米的偏转，并且在折叠状态下具有至少40％的可恢复性。 具有这种结构的面罩体是有益的，因为它不需要使用鼻泡来获得鼻子上的贴合。