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91. 发明授权

US5948507A Absorbent articles with reduced cross-directional wrinkles 失效
标题翻译：具有减少的横向皱纹的吸收制品
公开(公告)号：US5948507A
公开(公告)日：1999-09-07
申请号：US114398
申请日：1998-07-13
申请人： Fung-jou Chen , Jeffrey Dean Lindsay
发明人： Fung-jou Chen , Jeffrey Dean Lindsay
IPC分类号： A61F13/15 , B32B3/00 , B29C49/00 , D21H11/00
CPC分类号： A61F13/532 , A61F13/15203 , A61F13/15707 , A61F13/533 , A61F2013/530948 , Y10S428/913 , Y10T156/1023 , Y10T428/24455 , Y10T428/24479 , Y10T428/31511 , Y10T428/31993
摘要： Absorbent articles containing absorbent cores of fluff pulp frequently contain wrinkles in the absorbent core that run from side to side of the article, typically normal to the machine direction in the manufacturing process. Side-to-side wrinkles are deleterious in that they provide large flow channels for urine or other body fluids to escape to the edge of the article. Frequently, such wrinkles are present after manufacturing, before the article has been folded or worn. The cause of the wrinkles is believed to be due to natural instabilities during compression of the fluff pad shortly after it is formed. Means for reducing cross-directional wrinkles include the use of grooved, drilled, or patterned compression rolls to densify the fluff pulp while providing opportunities for reduced in-plane displacement during compression or, if in-plane displacement does occur, providing paths for cross-directional displacement as well as machine-direction displacement so that continuous CD wrinkles cannot form. The use of large diameter rolls with soft rubber covers can also be used.
摘要翻译：含有绒毛纸浆的吸收芯的吸收制品通常在制品的一侧到另一侧经常在吸收芯中产生皱纹，通常在制造过程中垂直于机器方向。由于它们为尿液或其他体液提供大的流动通道以逃逸到制品的边缘，所以侧面到侧面的皱纹是有害的。在制品折叠或磨损之后，通常会出现这种皱纹。皱纹的原因被认为是由于在形成后短绒垫压缩期间的自然不稳定性。用于减少横向皱纹的手段包括使用带槽，钻孔或图案化的压缩辊来致密绒毛浆，同时提供在压缩过程中降低面内位移的机会，或者如果确实发生面内位移，则提供用于交叉方向位移以及机器方向位移，从而不能形成连续的CD皱纹。也可以使用具有软橡胶盖的大直径辊。

92. 发明授权

US5779965A Double nip embossing 失效
标题翻译：双压印压花
公开(公告)号：US5779965A
公开(公告)日：1998-07-14
申请号：US708239
申请日：1996-09-03
申请人： Paul Douglas Beuther , Tammy Lynn Baum , Anthony Mark Gambaro , David Robert Gruber , Jeffrey Dean Lindsay
发明人： Paul Douglas Beuther , Tammy Lynn Baum , Anthony Mark Gambaro , David Robert Gruber , Jeffrey Dean Lindsay
IPC分类号： A61F13/15 , B31F1/07 , B29C43/22
CPC分类号： A61F13/15731 , B31F1/07 , B31F2201/0725 , B31F2201/0733 , B31F2201/0743 , B31F2201/0774
摘要： The crispness or clarity of embossed tissue is improved by embossing the tissue twice in two successive embossing nips formed between a rigid engraved embossing roll and a resilient backing roll. The hardness of the resilient backing roll in the first embossing nip is less than the hardness of the resilient backing roll in the second embossing nip. This form of double nip embossing is particularly effective for embossing tissue webs having high bulk and resiliency, such as soft uncreped throughdried tissues, which cannot be satisfactorily embossed by conventional methods.
摘要翻译：通过在形成于刚性雕刻压纹辊和弹性背衬辊之间的两个连续的压印辊隙中压印两次组织来提高压纹组织的脆度或透明度。第一压花辊隙中的弹性背衬辊的硬度小于第二压花辊隙中的弹性背衬辊的硬度。这种形式的双压印压花对于具有高体积和弹性的组织网状物（例如柔软的未干透过的干燥组织）而言是特别有效的，这些常规方法不能令人满意地压花。

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