Mehmood, FaisalLiaqat, Nazish2016-07-292016-07-292016https://escholar.umt.edu.pk/handle/123456789/1991Pilling is one of the main quality problems encountered in cotton knitted fabrics. Protruding fibers are formation of small fuzzy balls or knops giving unsightly appearance to the fabric. Pills are produced on the surface of fabric by friction and abrasion. The pilling of fabric is a serious problem in textile industry. In order to eliminate or decrease this problem, usually chemical finishing and mechanical treatments can be applied to the fabrics. Different techniques were used to remove the pilling from the surface of the fabric like singeing, shearing and bio-polishing. These techniques show different effects on the surface of the fabric. After doing this research work, it has been observed that these techniques when applied to cotton fabric resulted into many improvements in fabric properties. Dyeing, printing and other processes were improved by the use of these techniques. Pilling was removed completely by the application of these techniques and it was found helpful in improvement of fabric properties like luster, feel, and drape-ability. The best improvements were obtained with bio-polishing. The adverse effects of bio-polishing include reduction in strength and weight loss of the fabric. Bio-polishing mentions to the finishing technique of cellulase treatment of a cellulosic fabric, whether a natural or regenerated cellulose, to recover softness and to reduce pilling. The process has been used by numerous sectors of the textile industry. The bio polishing treatment offers the possible to improve the appearance and aesthetics properties of these fabrics. It was found that while these treatments yields a softer, more drape able fabric with reduced pilling on the fabric, and decrease in physical strength and basis weight was also observed after the treatment.BS ThesisSingeingShearingBio polishingThesis