product name, product type, model number,
test method, manufacturer, technique, application
Yarn Appearance Board WinderBACK
ASTM 2255,GB 9996
Yarn Board (Board Winder), to assess the evenness, hairiness, neps and other imperfections in a representative sample of yarn wound at a pre-determined pitch onto a tapered black yarn board. Variable pitch traverse of 7-19 wraps per centimeter, adjustable winding speed drive, equipped with alternative pre-tension, with yarn package stand and 5 tapered aluminum black yarn boards 250 x 180 mm. Assessment against photographic comparison standards (not included).