Application of some novel pyrazole disperse dyes to synthetic fabrics

Authors : Emine BAKAN, Fikret KARCI

Pages : 78-94

Doi:10.47137/uujes.1095062

View : 12 | Download : 7

Publication Date : 2022-12-30

Article Type : Research Paper

Abstract :In this study, 8 novel pyrazole disperse dyes which were synthesized in our previous work [1] were applied to polyethylene terephthalate insert ignore into journalissuearticles values(PET);, poly insert ignore into journalissuearticles values(lactic acid); insert ignore into journalissuearticles values(PLA); and polyamide 6.6 insert ignore into journalissuearticles values(PA 6.6); fiber fabrics and their colorimetric and fastness properties were evaluated. The measured a*, b* and hue angle insert ignore into journalissuearticles values(ho); values of all dyed fabrics exhibited yellow, orange and red colour shades. Quite high colour strength values insert ignore into journalissuearticles values(K/S); were measured particularly for dyes containing substitute groups; p-OCH3 and o-OCH3. Shade changes of all fabrics after standard washing and sublimation tests were in the commercially adequate range. All dyed PET, PLA and PA 6.6 fabrics exhibited commercially acceptable fastness staining performances with very good to excellent levels. Synthesized novel disperse dyestuffs led to moderate to high light fastness levels particularly in the case of PLA and PET fabrics.
Keywords : Pyrazole, disperse dye, PLA, Poly lactic acid, colour, fastness, PET, Polyamide