Prediction of yarn processability:
Draw tension reflects the molecular orientation of the yarn. With DTI 600, it is possible to predict the yarn’s behaviour in texturing, drawing and dyeing processes. By measuring the draw elongation, the yarn’s thermal shrinkage at a certain pretension is analysed.
DTI 600 is placed directly in the production, close to the spinning position. This together with the high-speed testing Test principle means timely reactions to minor quality, hence less downgraded material with cost savings as a result.
Easy results evaluation
Intuitive and easy analysis of measurement results. Thorough problem analysis with special key figures: No need for expert personnel.
Highly automated handling
DTI 600 features automatic yarn string-up and sample removal. An even higher automatization degree can be achieved if DTI 600 is used together with the optional SESS Sequential End Sampling System: With SESS, up to 24 positions are handled centrally and automatically for efficient sample feeding to DTI 600 or any other of Lenzing Instruments filament testing instruments without any need for operator interference.
During the draw tension measurement, the running yarn is drawn to a certain percentage and heated to a specific temperature for determination of the tension developed in the yarn. If the test is performed at constant tension, the yarn’s thermal shrinkage behaviour at a certain pretension can be analysed on the running yarn. Standardized according to ASTM D 5344.