STUDY OF INFLUENCE OF THE PREPARATION METHOD ON THE LIGHT FASTNESS OF COTTON KNITTED FABRIC

摘要

The main goal of this research is to study the effect of preparation methods (boiling, bleaching, combined boiling and bleaching principle, developed preparation principle) on the quality of cotton knitted fabric, sorption capacity in relation to reactive dyes and light fastness of colour. The quality of the preparation was evaluated in terms of capillarity, degree of removal of waxy substances, whiteness, breaking load and sorption of reactive dyes using traditional methods. The light fastness of the obtained colours was evaluated after exposure of Light Fastness Tester (Mercury-Tungsten Lamp) RF 1201 BS («REFOND») with a PCE-TCR 200 colorimeter. It has been established that high indices of light fastness of colours obtained on cotton knitted fabric with reactive dyes are ensured by the developed preparation principle.