发明申请
US20100044909A1 LOFTY, TACKIFIED NONWOVEN SHEET AND METHOD OF MAKING
审中-公开
LOFTY,TACKIFIED NONWOVEN SHEET AND METHOD OF MAKING
- 专利标题: LOFTY, TACKIFIED NONWOVEN SHEET AND METHOD OF MAKING
- 专利标题(中): LOFTY,TACKIFIED NONWOVEN SHEET AND METHOD OF MAKING
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申请号: US12194777申请日: 2008-08-20
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公开(公告)号: US20100044909A1公开(公告)日: 2010-02-25
- 发明人: Thomas E. Haskett , Robert J. Maki
- 申请人: Thomas E. Haskett , Robert J. Maki
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 主分类号: B29C65/52
- IPC分类号: B29C65/52 ; B29C70/44
摘要:
A method of making a tackified nonwoven sheet that includes forming a densified, tackified web by providing a rebulkable nonwoven fiber web and applying an adhesive to the nonwoven web. The densified, tackified web is rebulked to an open, lofty form by exposing the densified, tackified web to a temperature of at least 225° F. Finally, a sheet is formed from the rebulked, tackified web. In some embodiments, the so-formed sheet is a cleaning wipe configured for picking up diverse debris such as sand, dust, hair, and/or food particles. In other embodiments, the method further includes the rebulked, tackified web having an increased degree of loftiness as compared to a degree of loftiness of the densified, tackified web prior to rebulking.
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