| Abstract [eng] |
For textile products, such as garments, the comfort properties are important, for they influence the microclimate they create between the garment and the skin of the wearer, which is influenced by the air permeability, water absorption and moisture transportation through the product. Digital textile printing is an ecological textile printing method, the usage of which allows the reduction of environmental pollution and new opportunities for textile printing designs. The purpose of this master’s thesis is to research and determine the influence of digital textile printing on the structural parameters and physical properties of textile fabrics. In this project, 10 fabrics of different fiber compositions and knitting patterns were analyzed prior and after applying the digital printing process. Fabrics were made from pure cotton, cotton and viscose fiber yarn in combinations with modal fiber yarn and elastane, metallic threads. The analyzed fabrics were knitted using the single jersey, plated (single jersey based), plated laid-in, laid-in patterns, using a circular weft knitting machine. The analyzed fabrics were provided by knitted and woven fabric production and digital printing company “Textilis”. During this research, the loop pitch, row height and loop length were calculated for unprinted fabrics. For unprinted and printed fabrics, the horizontal and vertical densities, thickness, area density were measured. The physical properties – air permeability, dynamic and static water absorption, drying rate – of the unprinted and printed fabrics were determined. The conducted research shows that for unprinted and printed fabrics, the highest air permeability values were obtained from the fabric knitted from pure cotton yarn, using the single jersey pattern, the lowest air permeability values were obtained from fabrics knitted from a combination of cotton yarn and elastane threads, using the plated (single jersey based) pattern. Results of the dynamic absorption test show that the highest water absorbency values were obtained from fabrics knitted using the laid-in patterns, from combinations of cotton, modal yarns, elastane and metallic threads. The lowest dynamic absorption was observed in fabrics knitted from combinations of viscose yarn and elastane threads. The results of the static absorption test show that the highest absorption values were obtained from fabrics knitted using the laid-in patterns, using combinations of cotton, modal yarns, elastane and metallic threads. The lowest static absorption values were obtained from fabrics knitted from viscose yarn and elastane thread combinations. Results of the drying rate test show for both unprinted and printed fabrics, the highest drying rate values were observed in fabrics knitted using the laid-in patterns, from combinations of cotton, viscose yarns, elastane and metallic threads. |
