Polyolefin fibres - for papermaking by injecting polyolefin soln into low pressure zone and impacting with high veloci,申请号IT19730019786-传众专利搜索

Polyolefin fibres - for papermaking by injecting polyolefin soln into low pressure zone and impacting with high veloci

申请公布号：IT1045462(B)

申请号：IT19730019786

申请日期：1973.01.30

申请公布日期：1980.05.10

申请人：

MONTECATINI EDISON S P A

发明人：PARRINI P;GALLI P

分类号：D21H;(IPC1-7):21H/

主分类号：D21H

摘要：<p>Synthetic fibres with a size suitable for the prodn. of fibres for prodn. of paper by normal paper mfrg. methods are produced without cutting by (a) preparing a soln. of a polyolefin in a solvent at a temp. above the b.pt. of the solvent and at a press. >= the autogenic pressure, (b) injecting the soln. into a low press. zone so that it expands in this zone, and (c) impacting the expanded soln. by a high velocity fluid jet at a lower temp. than the soln., the direction of this fluid forming an angle with the injection direction of the soln.</p>