In this study, an attempt has been taken to find out the influence of stitch length, knit structure and yarn type on the pilling and abrasion resistance of major weft knitted single jersey fabrics. The knit structures were selected as Plain, Polo pique, Single Lacoste and Double Lacoste made from 30/1 Ne 100% Cotton, PC (Polyester-Cotton) and CVC (Chief Value of Cotton) yarns with varying the stitch length of 2.59mm, 2.74mm, 2.88mm, 3.02mm and 3.16mm. The results revealed that smaller stitch length promotes both pilling and abrasion properties. It was also found that pilling resistance of Double Lacoste structure was the highest in all types of yarns and stitch lengths although its abrasion resistance was the lowest. Moreover, the fabrics made from 100% cotton yarns had better pilling performance than blended yarns but its abrasion resistance was the lowest among them.

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IntroductionNatural fibers as reinforcement have attracted the attention of researchers because of their advantages over established materials as they are environmentally friendly, fully biodegradable, abundantly available and cheap. Plant fibers are lighter weight compared to glass and carbon fibers. Currently, many types of natural fibers have been investigated for use in plastics including flax, hemp, jute straw, alginate, rice husk, wheat, kenaf etc. Natural fibers are undergoing a high-tech revolution that could see them replace synthetic materials in many applications. Among all the natural fibers, jute fibers appear to be one of the most useful, inexpensive and commercially available lignocellulose fibers. Jute is one of the strongest natural fibers. Jute fabric reinforced plastic composites combine the advantages of both jute fibers and plastics. Thus, they can be widely used in the packaging, electronic and aircraft industries. In the case of automotive industries, these composites have been used in bumpers, roofs, doors, panels, seats of cars, buses, and so on [1][2][3][4]. Natural fiber reinforced composites based on fabric reinforcement are becoming popular because of their superior strength, stiffness to weight ratio, higher impact strength and balanced physico-mechanical properties compared to the unidirectional fiber composites. These composites are primarily used in the aerospace, marine, defence, land transportation, construction, and power generation sectors as load bearing materials. Furthermore, fabric reinforcements have good extensibility, easy manufacture ability, better energy absorption ability that exceeds those of conventional short fibers thus proving its suitability for the manufacture of structural parts [5].Nassif stated that the different weft densities in plain, twill and satin weave patterns will be affected the physical and mechanical properties in woven fabric. Among the various parameters influencing the mechanical properties of fabric, weave structure is identified as one of the main factors influencing the mechanical performance for high strength application [6][7][8]. In particular, the woven fabric composites provide more balance in strength, toughness and stiffness compare to nonwoven fabrics. AbstractThis paper represents a comparative study of the different weave structures of jute woven fabric reinforced polypropylene (PP) composites. The weave structures were selected as plain (1/1), twill (2/1), twill (3/1) and basket (2/2). Composites (40% fiber by wt.) were prepared by using compression molding technique. The mechanical properties such as tensile strength (TS), bending strength (BS) and impact strength (IS) of the composites were evaluated and compared. It was found that basket weave/PP based composite showed the highest mechanical properties. The optimum value of TS, BS, TM, BM and IS of the composite were found to be 49.7 MPa, 92.5 MPa, 867 MPa, 5.6 GPa and 29.8 KJ/m 2 .To find out the effect of yarn density on mechanical properties of the composites, 2/1 twill ...

Fibre blend ratio is an important factor that determines the properties of spun yarn. Modal is a regenerated man-made fibre and free from short fibres, neps, and impurities. In this paper, the influence of modal fibre in cotton-modal fibre blend ratio on the blended yarn properties has been studied. Cotton-modal blended yarn with blend ratio of 80:20, 70:30 and 50:50 and 100% cotton yarn of 30 Ne were produced in ring spinning frame. The properties of fibres, slivers, rovings and manufactured yarns were tested by using the Uster HVI, Wrap reel, Wrap block, Uster Evenness tester-5 and Lea strength tester. The experimental results show that the yarn quality parameters such as Um%, CVm%, thick places, thin places, neps, Imperfection Index and hairiness of 100% cotton are higher than cotton-modal blended yarns. With the increase of modal fibre percentage, the quality of blended yarns has been improved than 100% cotton yarn. In regards to the CSP value, the cotton-modal blended yarns show an increasing trend with increasing modal fibre percentage in the blend ratio. It can be attributed that the absence of short fibres in modal fibre which phenomena contributes to the yarn properties with increasing the modal fibre percentage.