Surface functionalization of greige cotton knitted fabric through plasma and cationization for dyeing with reactive and acid dyes

Dyeing cotton fabrics with anionic dyes produces high effluent loads and requires a considerable amount of water energy due to the electrostatic repulsion cellulose. Therefore, several approaches have been researched increase efficacy dyeing. One is cationization, which adds cationic sites Another treatment surface plasma. In this paper, combination both techniques was investigated. Two commercially available agents were used: 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTAC) poly[bis(2-chloroethyl) ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] quaternized, novel agent also known as Polyquaternium-2 (P42). The plasma performed using dielectric barrier discharge atmospheric facility, helium used seed gas 1.5% oxygen injected. cationization on greige fabric, an innovative sustainable approach that eliminates conventional scouring bleaching processes. treated samples dyed Reactive Red 195 Acid Blue 260 dyes. effect treatments evaluated by different characterization such X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) atomic force microscopy (AFM). slightly increased light fastness for some samples, but tends prevail over treatment. best results attributed pretreated CHPTAC, presented highest K/S lowest unlevelness reactive acid CHPTAC most common textiles, its industrial use limited safety criticisms. between P42 resulted in same color strength offers safer alternative process.