发明名称 CONTINUOUS CONTROLLED DRAINAGE
摘要 A process and apparatus for improving paper formation on an open surface paper making machine is described. By the use of both a path for the forming fabric which introduces a controlled level of agitation into the stock, and a low level of vacuum in a suction box extending continuously for the forming section, improvements both in paper quality, such as improved wire mark, and in machine operation, such as an improved first pass retention, are obtained.
申请公布号 WO9015187(A1) 申请公布日期 1990.12.13
申请号 WO1990CA00185 申请日期 1990.06.07
申请人 JWI LTD. 发明人 HANSEN, VICTOR, EMANUEL
分类号 D21F1/00;D21F1/52;D21F9/02 主分类号 D21F1/00
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