发明名称 |
Casing material and a method and apparatus for its manufacture |
摘要 |
The invention relates to a method and to an apparatus for perforating a web of material intended to form an outer casing sheet of absorbent articles. As the web is advanced, the web is first provided with a large number of mutually separated cuts in the nip defined between raised plateaus on a matrix cylinder and circumferentially extending knife-edges of a cutting cylinder. The web is then deformed transversely to its plane at parts which border on each cut. The invention also relates to a perforated outer casing sheet which includes recesses in the form of mutually adjacent elongated channel-like grooves. |
申请公布号 |
AU698066(B2) |
申请公布日期 |
1998.10.22 |
申请号 |
AU19960044040 |
申请日期 |
1995.12.28 |
申请人 |
SCA MOLNLYCKE AB |
发明人 |
BENGT LINDQUIST;STEFAN ARESKOUG;ANDERS STRALIN |
分类号 |
A61F13/511;A61F13/15;A61F13/472;A61F13/49;A61F13/514;B26F1/18;B26F1/20;B29C59/04;B29D7/01;(IPC1-7):A61F13/15 |
主分类号 |
A61F13/511 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|