Investigation of effect of fibres modulus on pilling of acrylic fabrics

Pills are formed by entangling fibres into discrete balls on the surface of fabrics which are usually the result of wear, abrasion, washing or a combination of all three. In the present study, the effect of initial modulus of fibres on the pilling of woven fabrics was investigated. For this purpose, non-shrinkable (regular) and shrinkable (high bulk) acrylic fibres which have different initial modulus, were used. By using different percentages of them, five kinds of yarn were produced. Twill woven fabrics (T 1/2 z1) produced from these yarn were tested on ICI pilling box tester. Results of pilling test performed on the sample showed that by increasing the percentage of non-shrinkable (regular) fibres with high initial modulus, the tendency of fibres to leave the structure of yarn increases and they will present on the surface of fabrics as pills.