| 摘要 |
PURPOSE:To obtain pitch yarn having a random or onion section structure from mesophase pitch, by setting long molding materials that form space becoming a flow channel of melt between the inner walls of nozzles and the molding materials in the nozzles. CONSTITUTION:A die is piled on the fixing base 9 having the holes 8 for fixing molding materials at a position where the positions of the holes coincide with those of the nozzles, fixing pieces are attached to the tops of the molding materials 10, and they are passed through the holes 8 of the fixing base 9 into the nozzles 5 of the die 6. The molding materials can be vertically arranged at given positions. The molding materials have length to reach >=1/3 thickness of the die, preferably >=1/2 thickness of the die from the top and not to reach capillary parts.
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