Knitted fabrics are textile surfaces obtained by forming connections in loops of threads with needles and auxiliary elements. Knitted fabrics are used in sportswear, women's and men's outerwear, underwear, baby clothes, bath and beach wear, socks, etc.
With digital printing, high-quality prints with clear contours and high color efficiency can be obtained on textile surfaces. Digital printing technology is a significantly cleaner production method compared to other textile dyeing technologies, it produces fewer greenhouse gases and has a lower carbon footprint compared to conventional methods at every stage of production. It reduces the production time by eliminating the intermediate stages such as film preparation, and screen preparation in conventional printing methods. These features make digital printing an effective coloring method within the scope of sustainability.
After the normal pre-treatment processes, a paste containing a suitable thickener should be padded to prevent ink from spreading. In addition, alkali, acid, urea, etc., which are necessary for the fixation of the dyestuff, can be added to this paste.
After the digital printing process, a fixation process is carried out to increase the penetration of the dyestuffs into the fibers. Different types of fixation are implemented according to raw materials and dyestuff types.
In this study, single jersey knitted fabrics obtained from raw materials of Cotton, Viscose, Cotton-Hemp, Cotton-Modal, and Cotton-Viscose mixed raw materials were used. Before the digital printing process, the amount of thickener in the pre-treatment paste was changed. After printing, fixation time was changed and samples were obtained. For this purpose, the wale/course density, thickness, and weight properties of the fabrics were tested. Bursting strength tests were applied to all samples according to BS EN 13938-2 standard. The effect of change of raw material, thickener amount, and fixation time on burst strength was determined. Statistical analysis of the experimental results was analyzed with the SPSS package program.
Anahtar Kelimeler: Digital Printing, Bursting strength, thickener amount, fixation, single jersey.
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