YARN FRICTION TESTER Following the continuous progress of the manufacturing technology, machine’s efficiency as well as quality awareness, the friction properties are recognised nowadays as one of the most important yarn quality parameter. Thanks to its superior features, automatic functions and easy operations, the ATTRIFIL III, third generation of Mesdan-Lab yarn friction testers, became the most popular yarn friction tester on the market used by most renowned spinners, knitters, R&D labs, vocational institutions, wax & oil manufacturers, etc. There are many factors influencing yarn friction levels and evenness such as yarn structure, count, tension, yarn deflection, wax size and type, temperature and moisture level, etc. ATTRIFIL III is conceived to: ·· optimise waxing device settings and wax pick up ·· monitor the even distribution of auxiliary products on both gray and dyed yarns such as wax, oil, paraffin, sizing, etc. ·· prevent lots of downstream quality problems in knitting and weaving such as barrè effect, tension variations, machine’s stoppages, etc. ·· ensure rapid, accurate and reproducible assessment of yarn sliding properties against metal, cerami

Perfect waxed is half knitted! Functioning principle In compliance with ASTM D3108 norm, the yarn subject to a constant input tension automatically adjusted by software (usually 20 cN) runs at known speed on an interchangeable friction pin thus making a 180° wrapping angle. The resultant output tension and its variation are immediately recorded. The obtained data are instantly processed and the coefficient of friction (µ) is calculated by means of Amontons’ law as it is requested by ASTM norm. Running speed The running speed for testing the coefficient of friction is usually set at 100 m/min.,...

Graphic presentation of yarn friction comparison of 4 yarns analysis performed by SSM (Switzerland) with Mesdan ATTRIFIL ATTRIFIL III is operated by an effective software running in Windows operative system of easy and immediate employ. While testing, the display of the friction coefficient diagram points out the running property of the yarn and its variation. The following results are displayed and reported in the main print: coefficient of friction (p), (minimum, average and maximum value), and coefficient of variation CV% of each test. The same total results are calculated on the base of the...

INCLUDED ACCESSORIES Electronic instrument for measuring the coefficient of friction [p] in a wide variety of yarns and threads, either spun or filament. ATTRIFIL III is the only available fully automatic yarn friction tester able to perform multiple tests from the same bobbin completely automatically without operator attendance. ■ Software for Windows O.S. complete with Data Bank ■ Threading hook to insert easily yarn through the pre-tensioning device TECHNICAL FEATURES OPTIONAL / ACCESSORIES ■ Automatic testing from a single package/bobbin up to 999 tests without operator ■ Possibility to connect...