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121. 发明申请

WO2004035902A1 COMPOSITE MATERIALS CONTAINING FULLY STABILIZED FILAMENT ASSEMBLIES 审中-公开
标题翻译：包含完全稳定的FILAMENT组装的复合材料
公开(公告)号：WO2004035902A1
公开(公告)日：2004-04-29
申请号：PCT/GB2003/004293
申请日：2003-10-03
申请人： BARTH, Georg, Martin , CARUS, Edmund, Hugh
发明人： BARTH, Georg, Martin , CARUS, Edmund, Hugh
IPC分类号： D04H13/00
CPC分类号： D02G1/12 , A61F13/00987 , A61F13/15626 , D02G1/122 , D04H3/04 , D04H3/10 , D04H3/11
摘要： A method of producing a nonwoven textile structure comprises the steps of: (a) stretching a plurality of substantially parallel continuous tow filaments (1), such as cellulose acetate or solvent spun rayon, to provide a partially stabilized filament bundle (5) and (b) folding or corrugating the stretched bundle in a stuffer box process (at 6) which includes air or steam injection (at 7) so as to increase its bulk and loft. The resulting material is consolidated so as to maintain substantially uninterrupted capillarity along the entire length of the resulting filament bundle. This may be accomplished by a controlled light hydroentanglement process (at 8) employing either widely spaced water injection manifolds or low water pressure. Alternatively it may be accomplished by light tacking using thermal spot calendaring or ultrasonic means. Either technique provides sufficient strength and integrity to the tow assemblies to facilitate handling during further processing, such as bonding to a carrier layer to provide a bandage or incorporation between outer layers, whether pre-cut or not, to provide smaller dressings or elongate bandages.
摘要翻译：制造非织造织物结构的方法包括以下步骤：（a）拉伸多个基本平行的连续丝束（1），例如乙酸纤维素或溶剂纺丝人造丝，以提供部分稳定的丝束（5）和（ b）在包括空气或蒸汽注入（7号）的填塞箱过程（6）中折叠或折叠拉伸的束，以增加其散装和放样。所得到的材料被固结，以便沿着所得细丝束的整个长度保持基本上不间断的毛细作用。这可以通过使用宽间隔的注水歧管或低水压的受控轻水合加工工艺（8）来完成。或者，可以通过使用热点压延或超声波装置的轻型固定来实现。任一种技术为丝束组件提供足够的强度和完整性，以便于在进一步加工期间的操作，例如结合到载体层以提供绷带或外层之间的并入，无论是否切割，以提供更小的敷料或细长的绷带。

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