Blog

Why does black or navy polyester turn pale when stretched? Learn how filament deformation, microvoids, yarn separation and optical light scattering create white stress marks in activewear and stretch fabrics.

Learn how silicone softener changes polyester fabric by improving softness, slip, drape and hand feel while affecting wicking, printing and surface performance.

Learn how false-twist texturing converts polyester POY into DTY using drawing, twisting, heating, cooling and untwisting to create permanent crimp and bulk.

A polyester-Lycra fabric can stretch well yet still develop baggy knees or lose compression after repeated movement. Learn how dynamic stretch recovery, fabric growth, hysteresis and heat setting determine long-term garment fit.

Polyester can develop dark patches, streaks and edge-to-centre differences after drying even when dyeing was uniform. Learn how moisture distribution, evaporation and finish migration create these defects.

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.  

Missing loops and ladder-like holes in polyester knit fabric often come from needle latch failure, unstable yarn feeding or poor loop control. Learn how drop stitches form and how knitting mills can prevent them.  

Why do some polyester fabrics remain creased after being folded or packed for weeks? Learn how compression, storage time, temperature, yarn crimp and heat setting affect crease recovery.  

Why does one polyester knit feel cool while another feels warm even at the same GSM? Learn how thermal conductivity, thermal effusivity, fabric thickness, air spaces and moisture influence cool-touch performance.