To provide a method for spinning fibers comprising a thermoplastic resin, by which the sufficient cooling of the spun fibers and the prevention of the shaking of the fibers can be achieved to give the fibers having small fineness unevenness, large strength-elongation product and reduced fuzzes in good operability, and to provide a cooling device.
The method for spinning fibers comprising the thermoplastic resin, comprising melt-spinning the thermoplastic resin, blowing cooling air on the spun fibers from a uni-flow chimney to cool and solidify the fibers, passing the solidified fibers through a cylindrical duct connected to the lower portion of the chimney, and then taking off the fibers, is characterized by disposing members for surrounding the chimney to close the fiber-traveling space and discharging the cooling air together with the fibers from the lower portion of the duct.
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TOKUTOME HIROAKI
HORIGUCHI HIROTAKA
