Yarn Twist Tester

Application:

Determine the twist in yarns, twist irregularity and twist shrinkage. It is applicable to single yarns (spun and filament), plied yarns and cabled yarns.

 

Principle:

The twist in a known length of yarn is removed by rotating one end of the specimen with respect to the other until the components of the yarn being tested are parallel. The exact number of turns required to remove the twist is reported in terms of turns per unit length of yarn.

 

Test Standard:

ISO 2061, ASTM D1422, JIS L1095

 

Specification:

Working mode	Microcomputer control, data processing, data printing
Testing method	Untwist-retwist Method A, Untwist-retwist Method B, Triple Twisting Method
Sample length	10, 25, 50, 100, 200, 250, 500mm
Twist range	1~6,000 twist/10cm; 1~6,000 twist/m
Untwisting range	Max. 60mm
Twist shrinkage	20mm
Rotating speed	200~2,000r/min
Pre-tension	0.5~171.5cN
Power source	1-phase, AC220V, 50Hz
Machine size	920*170*220mm
Weight	16kg