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公开(公告)号：US5788993A
公开(公告)日：1998-08-04
申请号：US870995
申请日：1997-06-06
申请人： Michael Allen Bryner , Don M. Coates , Michael Charles Davis , Tom Edward Estep , Ralph A. Franke , Larry Ray Marshall , Subhra K. Nath , Charles Wesley Starke, Sr.
发明人： Michael Allen Bryner , Don M. Coates , Michael Charles Davis , Tom Edward Estep , Ralph A. Franke , Larry Ray Marshall , Subhra K. Nath , Charles Wesley Starke, Sr.
CPC分类号： D01D5/11
摘要： A flash spin pack for a flash-spinning apparatus is provided in which the pack includes a spin mixture inlet, that communicates with a spin mixture passage, that discharges through a spinning orifice that opens into a slot defined by two opposing faces of the body of the spin pack. The slot is 0.25 mm to 7 mm wide proximate the spinning orifice outlet, 0.25 mm to 10 mm at the slot outlet, and the distance from the orifice outlet to the slot outlet is 1.5 mm to 40 mm. The spin pack may have five or more spinning orifices that each discharge into a different slot so configured.
摘要翻译： 提供了一种用于闪蒸纺丝设备的闪光旋转组件，其中所述组件包括旋转混合物入口，所述旋转混合物入口与旋转混合物通道连通，所述旋转混合物入口通过旋转孔排放，所述旋转孔通过所述纺丝孔， 纺丝包。 狭缝在纺纱孔出口附近为0.25mm至7mm宽，槽出口处为0.25mm至10mm，并且从孔出口到槽出口的距离为1.5mm至40mm。 纺丝袋可以具有五个或更多个纺丝孔，每个喷丝孔排放到如此配置的不同槽中。
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公开(公告)号：US5863639A
公开(公告)日：1999-01-26
申请号：US685367
申请日：1996-07-23
申请人： Ralph A. Franke , Hyun S. Lim , Larry Ray Marshall , Michael P. Milone , R. Gail Raty , Akhileswar G. Vaidyanathan
发明人： Ralph A. Franke , Hyun S. Lim , Larry Ray Marshall , Michael P. Milone , R. Gail Raty , Akhileswar G. Vaidyanathan
CPC分类号： D04H3/16 , D04H1/724 , Y10S428/903 , Y10T428/24826 , Y10T428/24942 , Y10T428/24992 , Y10T428/249978 , Y10T442/608
摘要： This invention relates to improved sheet products and specifically to improved nonwoven sheet products made from highly oriented plexifilamentary film-fibril webs. The improved sheet products have high opacity and strength with a much wider range of porosity or Gurley Hill Porosity Values. In particular, sheet products made in accordance with the present invention have considerably higher Gurley Hill Porosity Values than similar weight sheet products subject to the same finishing treatments in accordance with prior known sheet materials. Similarly, sheet products made in accordance with the present invention can be made which have much lower Gurley Hill Porosity Values than prior sheet materials. The invention includes numerous methods and data characterizing the webs and sheets that form the improved sheet materials.
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3.发明授权Process for modifying porosity in sheet made from flash spinning olefin polymer 失效用于改善由快速纺丝烯烃聚合物制成的片材中的孔隙率的方法
公开(公告)号：US5833900A
公开(公告)日：1998-11-10
申请号：US685368
申请日：1996-07-23
申请人： Ralph A. Franke , Hyun S. Lim , Larry Ray Marshall
发明人： Ralph A. Franke , Hyun S. Lim , Larry Ray Marshall
摘要： This invention relates to a system and process for modifying the resulting properties of a flash spun plexifilamentary film-fibril web and spunbonded nonwoven sheets made from such webs. In particular, the system includes specifically designed letdown chamber arrangements wherein the solution of polymer and spin agent transitions from a single phase solution to a two phase solution in the letdown chamber prior to spinning at the spin orifice. The method comprises altering the configuration of the letdown chamber to alter the properties of the web and the sheet products made therefrom.
摘要翻译： 本发明涉及一种用于改变闪纺的有丝纤维膜 - 原纤维纤维网和由这种纤维网制成的纺粘非织造纸的所得性质的系统和方法。 特别地，该系统包括特别设计的减压室结构，其中聚合物和旋转剂的溶液在旋转孔口旋转之前从单相溶液转移到减压室中的两相溶液。 该方法包括改变下料室的构型以改变幅材和由其制成的片材产品的性质。
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公开(公告)号：US06070635A
公开(公告)日：2000-06-06
申请号：US62349
申请日：1998-04-17
CPC分类号： D04H3/16 , D04H1/724 , Y10S428/903 , Y10T428/24826 , Y10T428/24942 , Y10T428/24992 , Y10T428/249978 , Y10T442/608
摘要： This invention relates to improved sheet products and specifically to improved nonwoven sheet products made from highly oriented plexifilamentary film-fibril webs. The improved sheet products have high opacity and strength with a much wider range of porosity or Gurley Hill Porosity Values. In particular, sheet products made in accordance with the present invention have considerably higher Gurley Hill Porosity Values than similar weight sheet products subject to the same finishing treatments in accordance with prior known sheet materials. Similarly, sheet products made in accordance with the present invention can be made which have much lower Gurley Hill Porosity Values than prior sheet materials. The invention includes numerous methods and data characterizing the webs and sheets that form the improved sheet materials.
摘要翻译： 本发明涉及改进的片材产品，特别涉及由高取向的有丝纤维膜 - 原纤维网制成的改进的非织造片材产品。 改进的片材产品具有高的不透明度和强度，具有更宽的孔隙率或Gurley Hill孔隙度值。 特别地，根据本发明制成的片材产品具有相当高的古利山孔隙度值，而不是按照现有的已知片材进行相同的整理处理的类似重量片材产品。 类似地，可以制造根据本发明制成的片材产品，其具有比先前的片材材料低得多的古利山孔隙度值。 本发明包括形成改进的片材的幅材和片材的许多方法和数据。
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