发明授权
- 专利标题: Method of making a cellulosic absorbent sheet
- 专利标题(中): 制造纤维素吸收片的方法
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申请号: US13460940申请日: 2012-05-01
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公开(公告)号: US08568560B2公开(公告)日: 2013-10-29
- 发明人: Frank C. Murray , Greg A. Wendt , Steven L. Edwards , Stephen J. McCullough , Guy H. Super
- 申请人: Frank C. Murray , Greg A. Wendt , Steven L. Edwards , Stephen J. McCullough , Guy H. Super
- 申请人地址: US GA Atlanta
- 专利权人: Georgia-Pacific Consumer Products LP
- 当前专利权人: Georgia-Pacific Consumer Products LP
- 当前专利权人地址: US GA Atlanta
- 代理商 Laura L. Bozek
- 主分类号: B31F1/16
- IPC分类号: B31F1/16 ; B31F1/12 ; D21H25/04
摘要:
A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the bulk of the dried web.
公开/授权文献
- US20120211187A1 Method Of Making A Cellulosic Absorbent Sheet 公开/授权日:2012-08-23
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