发明名称 |
PROCESS OF MAKING SPUN-BONDED WEB |
摘要 |
An improved process and apparatus are provided for the formation of a spun-bonded fibrous web suitable for service in nonwoven end uses. A melt-processable thermoplastic polymeric material is melt-extruded to form a multifilamentary spinline, is quenched, and is wrapped about at least two spaced driven draw rolls that are surrounded by a shroud prior to collection to form a web, and is bonded to form a spun-bonded nonwoven product. The draw rolls exert a pulling force on the multifilamentary spinline so as to accomplish drawing of the molten multifilamentary spinline prior to complete solidification. The shroud makes possible the self-stringing of the spinline around the draw rolls. A pneumatic jet located at the exit end of the shroud assists in the contact of the multifilamentary spinline with the draw rolls in order to facilitate the imposition of a uniform pulling force and expels the multifilamentary spinline in the direction of its length toward a support where it is collected. The formation of a highly uniform spun-bonded nonwoven is made possible on an expeditious basis. |
申请公布号 |
LT98151(A) |
申请公布日期 |
1999.02.25 |
申请号 |
LT19980000151 |
申请日期 |
1998.10.23 |
申请人 |
REEMAY, INC. |
发明人 |
BRIGNOLA,EDWARD L.;FLECK,ALVIN A.;LACROIX,PRICE W.;WILLIS,EDWARD K.;ZIMMERMAN,LEON H. |
分类号 |
D01D5/12;D01D5/098;D01D10/00;D04H3/00;D04H3/08;D04H3/16;(IPC1-7):D01D5/12 |
主分类号 |
D01D5/12 |
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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