发明名称 |
MELT BLOWING APPARATUS WITH PARALLEL FLOW FILAMENT ATTENUATING SLOT |
摘要 |
A melt blowing die for extruding filaments of a polymer by a suitable configured air supply system to provide critical influencing and control over the molecular orientation, crystallinity and crystal orientation in high speed fiber spin line applications. Control of the both the magnitude and location of the applied shearing force is provided, through the design characteristics of the air supply system and, in particular, the attenuation of the filament through an attenuation slot; in one form in conjunction with the introduction of the air flow to the filament in a parallel flow caused by a Coanda bend in a second form in conjunction with a properly designed internal channel.
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申请公布号 |
WO0208502(A1) |
申请公布日期 |
2002.01.31 |
申请号 |
WO2001CA01013 |
申请日期 |
2001.07.11 |
申请人 |
RTICA, INC. |
发明人 |
ARSENEAU, WARREN;JOHNSON, DR, GORD, W |
分类号 |
D01D4/02;D01D5/098;(IPC1-7):D01D5/098 |
主分类号 |
D01D4/02 |
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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