Some polyester fabrics twist easily in the hand, while others resist rotation and return quickly to shape. This difference is related to torsional rigidity.
What Is Torsional Rigidity?
Torsional rigidity is the resistance of a material to twisting. In fabric, it depends on yarn torque, fabric construction, density, finishing and the interaction between yarns.
Why It Matters in Garments
Low resistance to twisting can contribute to panel distortion, unstable hems or a garment that feels less structured. Higher torsional rigidity can improve shape retention but may also make the fabric feel firmer.
What Affects It?
- DTY or filament yarn behaviour
- Yarn twist and residual torque
- Knit or weave construction
- Heat-setting quality
- Fabric thickness and finish
Where Buyers Should Pay Attention
Sportswear, fitted tops, technical garments and narrow panels can show twisting more clearly than loose silhouettes. Torsional behaviour is especially important where panels are repeatedly rotated during movement.
Practical Check
Compare samples after relaxation, washing and repeated manual twisting. If one fabric stays distorted longer, it may behave differently in finished garments even when GSM is similar.
Final Takeaway
Torsional rigidity is another example of why fabric performance cannot be judged by weight alone. It helps explain shape stability during real garment use.
Need Help Choosing Polyester Fabric?
Share your garment type, GSM, DIA / width, colour, quantity and end use with Walrus – Yes India Can. We can help shortlist suitable polyester fabrics for bulk production.
Call / WhatsApp: +91 90472 77722 / +91 90420 77722
Website: yesindiacan.in
