Heat-setting is a thermal process applied to synthetic fibers or blended fabrics to stabilize their dimensions and improve properties such as shape retention, wrinkle resistance, and elasticity.
It involves heating the fabric or yarn to a specific temperature and then cooling it in a fixed position.
This process helps eliminate internal stresses developed during spinning, weaving, or knitting.
Heat-setting is especially used for thermoplastic fibers like polyester, nylon, and acrylic.
It enhances fabric performance by reducing shrinkage and improving crease recovery and dimensional stability.