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1. 发明授权

US06551436B1 Method for forming an apertured web 失效
标题翻译：用于形成多孔网的方法
公开(公告)号：US06551436B1
公开(公告)日：2003-04-22
申请号：US09806889
申请日：2001-04-05
申请人： Andreas Flohr , Georg Pescher
发明人： Andreas Flohr , Georg Pescher
IPC分类号： D06C2700
CPC分类号： A61F13/15731 , B26F1/24 , Y10T156/1054 , Y10T156/1056 , Y10T156/1057 , Y10T156/1084 , Y10T156/1085 , Y10T156/1304 , Y10T156/1309 , Y10T156/1313 , Y10T156/1378 , Y10T225/30 , Y10T225/371
摘要： A method for forming an apertured web which may be used as a topsheet on a disposable absorbent article, such as a diaper. The web (240) is fed in as machine direction through a first nip (250) formed by a pair of rollers one of the rollers having a smooth outer surface and the other roller having an outer surface with a plurality of projections extending from it's outer surface. At least one of the rollers of the first nip (250) is heated. The first nip (250) apertures the web with a plurality of apertures each having a fused perimeter. The web (240) is then cooled to solidify the fused perimeter of the apertures. The web (240) is then fed through a second nip (280) formed by a pair of rollers to break the solidified fused perimeter of the apertures. One of the rollers of the second nip (280) has an outer surface with a plurality of grooves.
摘要翻译：用于形成可用作一次性吸收制品（例如尿布）上的顶片的多孔纤维网的方法。纸幅（240）通过由一对辊形成的第一辊隙（250）沿着机器方向进给，其中一个辊具有光滑的外表面，另一个辊具有外表面，该外表面具有从其外表面延伸的多个突起表面。加热第一压区（250）中的至少一个辊。第一压区（250）利用多个具有熔融周长的孔使幅材开孔。然后将网（240）冷却以固化孔的熔融周长。纸幅（240）然后通过由一对辊形成的第二辊隙（280）进给，以破坏孔的凝固的熔融周长。第二压区（280）的一个辊具有带有多个槽的外表面。

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