Improving rotor spun yarn fabrics by tensile drawing processing

Rotor yarns treated by tensile drawing processing are found not only differing from their original form in terms of yarn structure but also in bulk, mechanical and surface properties. The characteristics of fabrics produced from drawn rotor spun yarns will no doubt be affected by these changes. This paper reports a study on this aspect. Our experimental observation reveals that there exists an appreciable increment in most of the fabric mechanical properties. What is more important, dimensional stability and pilling performance are not seriously influenced. Especially, both subjective evaluation and rational experimental results indicate that comfort property is significantly improved as well. Other features of modified yarn fabrics include whiter appearance, slight increase in fabric weight-per-unit-area, as well as larger fabric thickness.