Abstract
The effect of the pilling degradation results is an important decreasing in garment quality and a negative influence on the user’s comfort to wear. There are a lot factors, such as the yarn spinning system, fabric geometry and finishing operation, which affect the pilling performance. This research paper presents the investigation of fabric surface concerning pilling formation, especially knits, influenced by the fibrous composition. As samples were used knitted fabric panels, obtained from carded yarns, with fibers composition like cotton, wool or mixed one. Regarding fabric geometry 3 types were used – single jersey, 2x2 rib and moss stitch. In order to establish which of the yarns are most appropriate for knitting garments from the point of view of pilling resistance were realized tests using the standard SR EN ISO 12945-2.The tests were performed with the Nu-Martindale – Abrasion and Pilling Tester, Model 864.For assessment were used two methods – the first one is a comparison with visual standards, tested fabrics or photographs of fabrics, to find the degree of pilling on a scale from 5 (no pilling) to 1 (very severe pilling) and the second one by determination of mass loss percent.
Highlights
The process of pilling appearance consists of three steps [1-2]: because of mechanical impact to the surface of garment, several fibers tips are pulled out creating a peeled surface
The pilling tendency on a textile's surface for three type of weft knitted fabric geometry - single jersey, 2x2 rib and moss stitch - produced from ring yarns and raw material like cotton, wool and mixed yarns were evaluated
According to the raw material, percent of mass loss is higher for knitted samples from wool yarn than cotton samples
Summary
The process of pilling appearance consists of three steps [1-2]: because of mechanical impact to the surface of garment, several fibers tips are pulled out creating a peeled surface (figure 1). The broken fibers come to separate tips and forms, gradually increasing pills. The fibers that retain these balls are still subjected to mechanical stresses, due to other factors (wear, washing, etc.), resulting in the friction wear effect that leads to their fall. The resistance to pilling of the fabric depends on the fabric density, i.e. when the length of loop structure decrease and the surface density increases, the pilling resistance grows [57]. The correct form of yarn, fabric and fabric formation can improve the quality of knit fabric [8-9]. Washing intensity, cleaning process [10] that varies depending on chemical softeners used during washing [11-12], their influence is not fully investigated
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