发明授权
- 专利标题: Liquid management film for absorbent articles
- 专利标题(中): 用于吸收制品的液体管理膜
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申请号: US546592申请日: 1995-10-23
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公开(公告)号: US5728446A公开(公告)日: 1998-03-17
- 发明人: Raymond P. Johnston , Robert T. Fehr , James A. Servatius
- 申请人: Raymond P. Johnston , Robert T. Fehr , James A. Servatius
- 专利权人: Johnston; Raymond P.,Fehr; Robert T.,Servatius; James A.
- 当前专利权人: Johnston; Raymond P.,Fehr; Robert T.,Servatius; James A.
- 主分类号: A61F13/15
- IPC分类号: A61F13/15 ; B32B3/28
摘要:
There is provided a liquid management film for use in rapid transport of liquid. The liquid management film is a thermoplastic film having at least one microstructured hydrophilic surface with a plurality of primary grooves. The primary grooves have at least two secondary grooves, each of said secondary grooves forming at least one notch which notches are substantially parallel and separated by a secondary peak. The notches or secondary grooves have an included angle of from about 10.degree. to about 120.degree., the depth of one of said secondary grooves (the height of the secondary peak over the notch) being at least 5 microns and said depth being from about 0.5 to about 80 percent of the depth of the primary groove. The said notches have a radius of curvature of less than about 15 microns and the primary and/or secondary groove depth and width varies by less than 20 percent for each groove over a given length of the film.
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