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公开(公告)号：US4859519A
公开(公告)日：1989-08-22
申请号：US92862
申请日：1987-09-03
CPC分类号： A61F13/512 , A61F13/15707 , A61F13/51104 , A61F13/51121 , B29C59/022 , B31F1/07 , A61F2013/5108 , A61F2013/51088 , A61F2013/51338 , B29C2059/023 , B29C2791/001 , B31F2201/0725 , B31F2201/0733 , B31F2201/0738 , B31F2201/0758 , B31F2201/0774 , B31F2201/0784 , Y10T428/24273 , Y10T428/24355 , Y10T428/24479
摘要： Apertured polymeric films for use as a liquid permeable facing material on absorbent products such as diapers and sanitary napkins is textured by a dual embossing process. The film is preferably embossed first with a pronounced, textile-like pattern, then embossed with a finely engraved finish roll to produce a thin, smooth film with a matte finish while retaining the appearance of the previously embossed pattern. The twice embossed film is soft, conformable, and more comfortable against the skin. The embossing sequence may be reversed for some applications.
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公开(公告)号：US4806411A
公开(公告)日：1989-02-21
申请号：US33552
申请日：1987-04-02
CPC分类号： A61F13/5611 , A61F13/5116 , A61F13/5123 , A61F13/515 , A61F13/534 , A61F2013/15821 , A61F2013/53445 , A61F2013/5395 , A61F2013/583 , Y10T428/24339 , Y10T428/24942
摘要： An apertured film, suitable for use as a sanitary napkin cover which passes body fluids, is provided. The film comprises a first layer of a first polymeric material and a second layer of a second polymeric material. Both layers are apertured for the transmission of body fluids therethrough. The first polymeric material exhibits a melting point temperature which is greater than the melting point temperature exhibited by the second polymeric material. The apertured film may be thermally bonded by heating the film to a temperature in excess of the melting point temperature of the second layer material and below the melting point temperature of the first layer material. The unmelted first layer will thereby maintain the integrity of the apertured film when the second layer is in its thermally softened condition.
摘要翻译： 提供适合用作通过体液的卫生巾盖的多孔膜。 该膜包括第一聚合物材料层和第二聚合物材料层。 两层都是有孔的，用于透过体液的传播。 第一聚合物材料的熔点温度大于第二聚合物材料所呈现的熔点温度。 多孔膜可以通过将膜加热到超过第二层材料的熔点温度并低于第一层材料的熔点温度的温度来热粘合。 因此，当第二层处于其软化状态时，未熔化的第一层将保持多孔膜的完整性。
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公开(公告)号：US4690679A
公开(公告)日：1987-09-01
申请号：US840290
申请日：1986-03-14
IPC分类号： A61F13/15 , A61F13/49 , A61F13/511 , A61F13/56 , A61F13/16
CPC分类号： A61F13/5611 , A61F13/5123 , A61F13/513 , A61F13/51394 , A61F13/515 , A61F13/534 , A61F2013/15821 , A61F2013/53445 , A61F2013/5395 , A61F2013/583
摘要： An apertured film, suitable for use as a sanitary napkin cover which passes body fluids, is provided. The film comprises a first layer of a first polymeric material and a second layer of a second polymeric material. Both layers are apertured for the transmission of body fluids therethrough. The first polymeric material exhibits a melting point temperature which is greater than the melting point temperature exhibited by the second polymeric material. The apertured film may be thermally bonded by heating the film to a temperature in excess of the melting point temperature of the second layer material and below the melting point temperature of the first layer material. The unmelted first layer will thereby maintain the integrity of the apertured film when the second layer is in its thermally softened condition.
摘要翻译： 提供适合用作通过体液的卫生巾盖的多孔膜。 该膜包括第一聚合物材料层和第二聚合物材料层。 两层都是有孔的，用于透过体液的传播。 第一聚合物材料的熔点温度大于第二聚合物材料所呈现的熔点温度。 多孔膜可以通过将膜加热到超过第二层材料的熔点温度并低于第一层材料的熔点温度的温度来热粘合。 因此，当第二层处于其软化状态时，未熔化的第一层将保持多孔膜的完整性。
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