发明授权
- 专利标题: Apparatus and process for aperturing and stretching a web
- 专利标题(中): 用于打开和拉伸网的装置和方法
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申请号: US13455857申请日: 2012-04-25
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公开(公告)号: US09242406B2公开(公告)日: 2016-01-26
- 发明人: Richard George Coe , Jill Marlene Orr , Sarah Beth Gross , Robert Karl Isburgh , Leroy Joseph Kocher , Kevin Gerard Muhs , Timothy Ian Mullane
- 申请人: Richard George Coe , Jill Marlene Orr , Sarah Beth Gross , Robert Karl Isburgh , Leroy Joseph Kocher , Kevin Gerard Muhs , Timothy Ian Mullane
- 申请人地址: US OH Cincinnati
- 专利权人: The Procter & Gamble Company
- 当前专利权人: The Procter & Gamble Company
- 当前专利权人地址: US OH Cincinnati
- 代理商 Megan C. Hymore; George H. Leal
- 主分类号: B29C55/18
- IPC分类号: B29C55/18 ; B29C55/08 ; B29C59/04 ; A61F13/15 ; B31F1/07 ; B29C53/26 ; B29C43/22 ; B29C53/28 ; B29C53/22
摘要:
Apparatuses and processes for aperturing and stretching a web are disclosed. In one embodiment, the method involves feeding a web into a nip that is formed between at least one pair of intermeshing rolls. The first roll is a raised ridge rotary knife aperturing roll and the second roll is a ring roll; both rolls comprise ridges and grooves. The first roll comprises a plurality of spaced-apart teeth extending outwardly from the top surface of the ridges, said teeth having tips, wherein the top surface of said ridges are disposed between the tips of said teeth and the bottom surface of said grooves. These apparatuses and processes enable a web to be formed which comprises apertures having greater open area than previously achievable with traditional processes and apparatuses.
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