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Fabric take-down tension controls how newly knitted polyester fabric moves away from circular knitting needles. Learn how the take-down system works, how it interacts with yarn feeding and stitch formation, and why balanced settings support consistent production.

Courses and wales determine how closely loops are packed in polyester knitted fabric. Learn how loop density affects GSM, opacity, airflow, stretch, stability and finished fabric appearance.

Why can two polyester fabrics with similar GSM have completely different opacity and airflow? Learn how yarn density, loop length, structure and finishing control fabric cover factor.

Two polyester knits can recover to the same final size but at very different speeds. Learn how yarn crimp, loop structure, elastane, finishing and heat setting control fabric recovery time after stretch.

Two polyester fabrics can have the same GSM yet produce completely different garment silhouettes. Learn how shear rigidity, bending stiffness, yarn friction and knit structure control fabric drape.  

Why does one polyester fabric spring back after pressure while another remains flat? Learn how yarn crimp, loop structure, thickness, heat setting and finishing control fabric compression and recovery.

Why does polyester knitted fabric roll or curl at the edges after cutting? Learn how single-jersey loop geometry, residual knitting stress, yarn torque, stenter tension and heat setting influence edge curling—and how mills and garment factories can reduce it.  

Why can the front and back of the same polyester knitted fabric appear different in colour? Learn how loop geometry, yarn orientation, light reflection, gloss, knit structure and finishing create face/back shade differences—even when dye uptake is similar.