| 摘要 |
Synthetic fiber filament slub yarn which has face similar to spun yarn and has bulkiness and flexibility like twist thread, was manufd. by connecting one strand of thermoplastic synthetic fiber central filament with one strand of thermoplastic synthetic fiber covering filament which was supplied excessively passing through the friction roller which was rotated in the opposite direction, twisting and anti-twisting, connecting and passing through the guide which has some frictional force, and then by twisting.
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