The effect of different concentrations of caustic potash ((KOH) upon Pak-Made (Polylene and Terylene) and imported (Teijen, Eslan, Three Guns and Kuraray) brands of polyester staple fibres revealed that the weight loss increased and tenacity decreased by increasing the concentration of KOH. Furthermore imported brands showed superiority over indigenous polyesters because they showed high resistance against alkali treatment.


AZHAR RASHID ,BABER SHAHBAZ ,S H MUHAMMAD NAWAZ ,