Unevenness test of Yarn
The unevenness test of yarn is one of the multiple tests conducted on filament yarns in the quality control lab at SIRANG.
For filament yarns, it is essential to measure tenacity and breaking elongation as well as the unevenness of yarn.
A yarn evenness test machine is employed to evaluate this quality parameter of yarn. This machine measures unevenness based on capacitance variations, which are proportional to the linear density changes. The outputs of the yarn evenness machine include statistical data, diagrams, spectrograms, standard deviation-length curves, etc.
Yarn Unevenness Test Process (P.O.Y 260Dtex/144F)
- Request for the polyester yarn quality control test (ASTM D1425 and ISO 16549)