D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 11/06 (2006.01) B29C 35/02 (2006.01) D01D 5/04 (2006.01) D01D 5/06 (2006.01) D01F 6/14 (2006.01)
Patent
CA 2462991
The present invention relates to crosslinked polyvinyl alcohol raw cord and method for producing the same, and more particularly, to crosslinked polyvinyl alcohol fiber, in which PVA resin having a degree of polymerization of more than 1,000 and a degree of saponification of more than 97.0 mol% is dissolved in dimethyl sulfoxide, the solution is subjected to dry and wet gel spinning using methanol as a coagulation solution, drawn and thermally treated, the resulting polyvinyl alcohol drawn yarn with 500-3,000 deniers is twisted to produce a cabling yarn, the cabling yarn is plied into a 2-ply or 3-ply yarn to produce a raw cord, the raw cord is wound on a bobbin for crosslinking and crosslinked in an aqueous crosslinking solution containing an aromatic aldehyde compound and an acid catalyst. Moreover, the present invention relates to a crosslinker-introducing apparatus, which is used in the above method and can effectively induce the crosslinking reaction of the wound raw cord.
Choi Soo-Myung
Kim Hak-Sung
Kwon Ik-Hyeon
Oh In-Seok
Park Seong-Ho
Battison Williams Dupuis
Hyosung Corporation
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