| 摘要 |
PROBLEM TO BE SOLVED: To provide a melt spinning apparatus for a conjugated fiber, which causes slight polymer deterioration even in the case of large difference in melting point and controls a cost even in scaling-up of the apparatus. SOLUTION: The melt spinning apparatus is constituted of a spinneret pack 7 which introduces two kinds of molten polymers A and B and spins a conjugated fiber, a spinning block 4 which is heated integrally in a mounted state of the spinneret pack 7 and polymer feed pipings 1A and 1B and 5A and 5B which are installed at the upstream side and the downstream side, respectively, of metering feeders 2A and 2B for separately feeding two kinds of the molten polymers A and B to the spinneret pack 7. The polymer feed pipings 1A and 1B and 5A and 5B are equipped with a heater different from that of the spinning block 4. The polymer feed pipings 1A and 1B and 5A and 5B and the metering feeders 2A and 2B are separated from the spinning block 4 except a feed part for feeding the molten polymers A and B to the spinning block 4. COPYRIGHT: (C)2005,JPO&NCIPI
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