发明授权
- 专利标题: High uniformity foam forming
- 专利标题(中): 高均匀泡沫成型
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申请号: US825121申请日: 1992-01-24
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公开(公告)号: US5200035A公开(公告)日: 1993-04-06
- 发明人: Dinesh M. Bhat , Robert J. Marinack , Bruce W. Janda
- 申请人: Dinesh M. Bhat , Robert J. Marinack , Bruce W. Janda
- 申请人地址: VA Richmond
- 专利权人: James River Corporation of Virginia
- 当前专利权人: James River Corporation of Virginia
- 当前专利权人地址: VA Richmond
- 主分类号: D21F11/00
- IPC分类号: D21F11/00
摘要:
A method of foam forming of paper includes the steps of metering a controlled feed of fiber dispersed in an aqueous liquid into a dewatering device, wherein the consistency of the fiber dispersed in the aqueous liquid input to the dewatering device is between about 0.5 and about 7% by weight. A uniform continuous strand of semi-moist pulp is obtained wherein the consistency of the semi-moist pulp leaving the dewatering device is between about 8 and 30% by weight. A stream of a foamed aqueous admixture is obtained and introduced into a dispersing mixer having shearing action extending substantially throughout a zone substantially athwart the flow path of the uniform continuous strand and the foamed aqueous stream and forming a stream of dispersed fiber bearing aqueous foam. The dispersed fiber bearing aqueous stream is conducted to the inlet of a positive displacement pump. Thereafter the dispersed fiber bearing stream is conducted through a headbox and the fibers dispersed in the stream are deposited on a moving foraminous support.
公开/授权文献
- US5952006A Drug preparations for treating impotency 公开/授权日:1999-09-14
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