| Abstract [eng] |
Summary Growing consumer demands for quality and comfort encourage research with newly emerging and well-known raw materials, weave and knitting parameters. Knitted fabrics are easy to maintain, with good comfort characteristics. Knitted fabrics also have good elastic properties. All these features are also required for socks, e.g products that are in contact with the body are worn and washed every day. Thus, the aim of this work is to investigate and determine the impact of sock products structure on end-use and comfort characteristics. For the research, 7 different raw material combinations were chosen: semi-wool 33 tex, semi-wool 25 tex, wool / silk 22 tex, cotton 29 tex, and cotton 25 tex yarns combination with elastomeric yarns (PU/PA6), cotton yarn 29,4 tex combinations with antibacterial “Skinlife” yarns and fire resistant FR viscose yarns. Knitted fabrics were knitted with tree different densities, by naming them as the low, medium, and high knitting density. The results of the research have showed that washing has a negative effect on dimensional stability. After washing, structure parameters of all knitting patterns, such as loop length, vertical and horizontal densities, and surface density, was changed. Air permeability is an important feature of comfort, which helps to create warming and cooling layer, defining the movement of air through the product. The highest air permeability was determinate in knitted fabrics made of semi-wool 25 tex, lowest – of knitted fabrics from FR viscose. The research also included abrasion resistance test, which is one of the main indicators of product durability. After abrasion resistance test, weight loss in knitted fabric was evaluated. The highest loss of the mass was found in samples of wool / silk 22 tex yarns, the smallest – in samples of semi-wool 33 tex yarns. Repeated abrasion test with knitted fabrics after washing showed negative impact of washing on abrasion resistance. In all samples, the weight loss after washing was higher than in the specimens before the washing, except for the wool / silk 22 tex yarns, which showed after washing lower weight loss than before the washing. |
