| 摘要 |
PURPOSE:To obtain twisted union yarns having improved covering effect and soft feeling, by supplying a fleece emerging from a front roll of a spinning machine and before twisting and a core yarn to a negative pressure suction pipe, and wrapping the fleece around the core yarn while drafting the fleece. CONSTITUTION:A fleece 3 and a core yarn 4 are delivered from front rolls 5 and 5', and sucked directly through a negative pressure suction pipe 6, and drafted. The core yarn 4 is passed through a yarn guide 7 and introduced into the negative pressure suction pipe 6. The fleece 3 is joined with the core yarn 4 and twisted by the rotation of a spindle 8 to cover the core yarn 4 with the fleece of the sheath part in the helical form. |
