The aim of the thesis was to investigate the usefulness of the dye from the fruits of the alien invasive plant species, staghorn sumac (lat. Rhus typhina), obtained by comparative extractions in different solvents, such as distilled water, methanol, ethanol, propanol, acetone, dichloromethane, and acetonitrile, for the preparation of screen-printing ink and for printing on paper and cotton fabric. During the experimental work, the colour of solutions of staghorn sumac in various solvents, obtained extracts, prepared printing inks, and obtained prints on paper and fabric was visually monitored. Additionally, the colour of all prints was colorimetrically evaluated. The resistance of the prints to rubbing, as well as the resistance to washing and wet ironing of prints on cotton fabric, were tested. The colours of the prints varied between light yellow-brown and orange-brown shades. All prints had excellent resistance to rubbing. The fastness of prints on cotton fabric to wet rubbing and ironing was excellent, but worse to washing. Printing inks prepared from dyes extracted in propanol and dichloromethane proved to be the best for printing on cotton fabric due to uniform and washing-resistant prints, and for printing on paper also printing inks prepared with dyes extracted in distilled water and ethanol.
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