发明授权
- 专利标题: Nonwoven fabrics having raised portions
- 专利标题(中): 具有凸起部分的无纺布
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申请号: US308001申请日: 1994-09-16
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公开(公告)号: US5674591A公开(公告)日: 1997-10-07
- 发明人: William A. James , William G. F. Kelly , Susan Lynn Suehr
- 申请人: William A. James , William G. F. Kelly , Susan Lynn Suehr
- 专利权人: James; William A.,Kelly; William G. F.,Suehr; Susan Lynn
- 当前专利权人: James; William A.,Kelly; William G. F.,Suehr; Susan Lynn
- 主分类号: D04H11/00
- IPC分类号: D04H11/00 ; D04H1/44 ; D04H1/45 ; D04H1/46 ; B32B3/00
摘要:
Nonwoven fabrics having a fibrous background portion in one plane thereof and raised fibrous portions in another plane thereof. There may be two types of raised portions. In one type, the basis weight of the raised portion is substantially the same as the basis weight of the background portion. In another type of raised portion, the basis weight is greater than the basis weight of the background portion. The raised portions are joined to the background portion by a fibrous transition region.
公开/授权文献
- US4427143A Apparatus for and method of initiating a damage-free score 公开/授权日:1984-01-24
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