US2010154378A1PendingUtilityA1

Method for preventing yarn breakage

Assignee: TEIJIN ARAMID BVPriority: Aug 20, 2007Filed: Aug 14, 2008Published: Jun 24, 2010
Est. expiryAug 20, 2027(~1.1 yrs left)· nominal 20-yr term from priority
D01D 10/06D01F 6/605D01D 5/06
56
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Claims

Abstract

The invention pertains to the use of a multifilament yarn spinning process comprising individually washing each filament of a multifilament yarn and, if neutralized, individually neutralizing each filament of the multifilament yarn, for preventing yarn breakage during the spinning process, the spinning process comprising spinning of a polymer through a spinneret to obtain the multifilament yarn, washing the yarn, and optionally neutralizing and/or drying the yarn and winding the yarn onto a bobbin Preferably the yarn is washed with jet washers.

Claims

exact text as granted — not AI-modified
1 . A method including a multifilament yarn spinning process comprising individually washing each filament of a multifilament yarn and, if neutralized, individually neutralizing each filament of the multifilament yarn, for preventing yarn breakage during the spinning process, the spinning process comprising spinning of a polymer through a spinneret to obtain the multifilament yarn, washing the yarn, and optionally neutralizing and/or drying the yarn and winding the yarn onto a bobbin. 
   
   
       2 . The method according to  claim 1  wherein a jet washer is used for washing and neutralizing the yarn. 
   
   
       3 . The method according to  claim 2  wherein excess liquid is removed from the outer surface of the yarn after having passed the jet washer. 
   
   
       4 . The method according to  claim 1  wherein the multifilament yarn is aramid yarn. 
   
   
       5 . The method according to  claim 2  wherein the multifilament yarn is aramid yarn. 
   
   
       6 . The method according to  claim 3  wherein the multifilament yarn is aramid yarn.

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