Method and apparatus for increasing the yield of rubber yarn

摘要

A method and apparatus for stabilizing and increasing the yield of natural rubber yarn includes stretching the yarn three times while allowing the yarn to relax intermediate and following the stretching steps. The method is accomplished using a plurality of nip rolls wherein a second roll is caused to travel faster than a first roll or the second roll is larger than the first roll, or both, to achieve the stretch while the yarn is relaxed intermediate three such stretching assemblies.