Investigation on the properties of regenerated spinnable fibers for the production of rotor yarn with high quality
A mixture of fibrous waste was cleaned by a cleaner which has two drum toothed regenerator equipped with two suction fan. Regenerated fibers from the cleaner give fleece layer that accumulates in the trolley for transportation to the destination. In that way, from the mixture of spinning fiber wastes obtained regenerated fiber. Output of spinnable fiber waste is 41.2%. The resulting regenerated spinnable fibers were subjected to tests on High volume instrument HVI 1000. Cleaner removes dust and short fibers very effective, whereby the contents of the trash is 2%. Other indicators show the properties of regenerated fibers are quite suitable for spinning with rotor method. Yarn with linear density 50 tex was developed with a number of twists 680 twist/m at the spinning chamber with a diameter of 43 mm and rotation frequency of 60,000 min<sup>-1</sup>. Yarn with linear density of 74 tex produced from sliver with linear density 4916 tex. The characteristics of the fiber length in the spinnable fiber waste was found more than 30 mm, which is quite spinnable and they can be used as a raw material for the production of rotor yarn. Physical - mechanical properties of the samples having a linear density of 29, 50 and 74 tex coincide with the standard.