发明名称 |
MULTI-PLY WEB FORMING APPARATUS AND METHOD |
摘要 |
A multi-ply paper web forming apparatus utilizes first and second forming wires which travel in a co-running path for a portion of their length and which form a throat into which an aqueous slurry of paper pulp fibers is introduced. The slurry is dewatered between the co-running first and second forming wires upwardly and downwardly to quickly produce a substantially formed, but still moist, top ply web which is carried on the second forming wire onto a base ply web which has previously been formed on the wire of a single wire former. The first surface of the top ply web is brought into ply bonding engagement with the surface of the base ply web to produce a composite multi-ply web which has superior overall ply bond, retention and dryness before leaving the web forming section of a papermaking machine. |
申请公布号 |
CA1313965(C) |
申请公布日期 |
1993.03.02 |
申请号 |
CA19880565543 |
申请日期 |
1988.04.29 |
申请人 |
BELOIT CORPORATION |
发明人 |
TURNER, JAMES A.;GRAY, PAUL T. |
分类号 |
D21F9/02;D21F1/00;D21F9/00;D21F11/04 |
主分类号 |
D21F9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|