发明名称 |
VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON BAHNEN |
摘要 |
<p>The invention resides in a method of forming a nonwoven web by employing a forming apparatus which includes a fiberizing roll for separating fibers from a feed mat and entraining them in a gaseous medium, a foraminous forming surface through which the gaseous medium passes and upon which the fibers are condensed to form a fibrous web, and a formation duct between the fiberizing roll and the forming surface for defining a flow path for the gaseous suspension of fibers from the fiberizing roll to the forming surface; the improvement wherein the formation duct includes front and back, substantially planar inner surfaces which may slightly converge in a direction from the fiberizing roll to the forming surface, but preferably diverge at an angle of up to about 41/2 degrees when the forming surface is a curved surface of a cylindrical drum, and up to about 11/2 degrees when the forming surface is a linear surface of a forming belt; the formation duct being inclined to the forming surface to define an incidence angle with the forming surface in the range of from about 10 DEG to about 30 DEG . The invention also resides in a method of forming a nonwoven web by employing the above-described apparatus.</p> |
申请公布号 |
DE2615640(A1) |
申请公布日期 |
1976.10.28 |
申请号 |
DE19762615640 |
申请日期 |
1976.04.07 |
申请人 |
SCOTT PAPER CO. |
发明人 |
PETER GOTCHEL,JOEL;JMES NORTON,HENRY;CONSTANTINE SPENGOS,AIRS;VAALBURG,LAWRENCE |
分类号 |
D01G25/00;D04H1/732;(IPC1-7):D04H1/70 |
主分类号 |
D01G25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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