Method for producing multi-hole ultra soft yarns
The present invention provides a method for successively introducing water soluble fibers into finish fibers (e.g. cotton) to produce a hollow and ultra soft structure, by introducing water soluble slivers into the center of a multi-hole feeder with multiple cotton fiber slivers arranged around the water soluble fiber in a pre-drawing process via a multi-hole sliver feeder. A plurality of these fibers can be drawn together to produces a fiber having multiple water soluble fibers. A cloth, e.g., towel, can be made using the method.
1. A method of producing soft yarns, comprising the steps of:
receiving from a first pre-drawing machine a plurality of finish fibers;
receiving from a second pre-drawing machine a water soluble fiber;
providing a first multi-hole drawing tool, the multi-hole drawing tool having a first planar surface and a second planar surface and a center passage disposed therethrough and configured to allow the passage of the water soluble fiber from the first planar surface to the second planar surface, and at least two finish fibers passages at a distance from the center passage and disposed the first and second planar surfaces and configured to allow passage of one of the at least two finish fibers of the plurality of finish fibers in each respective finish fiber passage;
introducing the plurality of finish fibers and the water soluble fiber into respective holes of the multi-hole drawing tool with the finish fibers arranged around the water soluble fiber;
pulling the finish fibers and the water soluble fiber through the multi-hole drawing tool to form a combined fiber, the combined fiber having the water soluble fiber surrounded by the finish fiber;
producing, prior to a speed frame process, a multi-combined fiber by:
providing a plurality of combined fibers;
drawing the plurality of the combined fibers through a second multi-hole drawing tool, the second multi-hole drawing tool having a first planar surface and a second planar surface disposed opposite the first planar surface and a center passage disposed therethrough and configured to allow the passage of one of the plurality of combined fibers, and at least two secondary combined fibers passages at a distance from the center passage and disposed the first and second planar surfaces and configured to allow passage of one of the at least two combined fibers in each respective finish fiber passage so as to form a multi-combined fiber, the multi-combined fiber having multiple water soluble fiber surrounded by the finish fiber; and
roving the multi-combined fiber.
2. The method of claim 1 , further including the step of exposing the multi-combined fiber to water to remove the multiple water soluble fibers.
3. The method of claim 1 , wherein the finish fiber is cotton.
4. The method of claim 1 , wherein the water soluble fibers are PVA.
5. The method of claim 1 , wherein the multi-hole drawing tool includes six passages arranged about a central seventh hole.
6. The method of claim 5 , wherein introducing step includes the step of generating a yarn from the multi-combined fiber.
7. The method of claim 1 , further including the steps of:
providing a plurality of the multi-combined fibers;
drawing the plurality of the multi-combined fibers to form a second order multi-combined fiber, the second multi-combined fiber having multiple water soluble fiber surrounded by the finish fiber.
8. A method of manufacturing a cloth, comprising the steps of:
weaving the cloth using at least one yarn produced by the method of claim 6 .
9. The method of claim 6 , further comprising incorporating at least one generated yarn into a cloth.
10. The method of claim 6 , further comprising incorporating at least one generated yarn into a towel.