• Textile Coloration and Finishing
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• v.28 no.3
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• pp.175-182
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• 2016

To investigate dyeing behaviors in accordance with dye structure in cold pad batch dyeing of cotton knit, monochlorotriazine-vinylsulfone bifunctional dyes and monofluorotriazine-vinylsulfone bifunctional dyes were prepared. The spectral property and solubility of the dyes were tested and compared with the imported dyes. In addition, exhaustion behaviors of individual and mixed dye solutions were measured to examine the influence of dye structure on dyeing behavior in cold pad batch dyeing. The substantivity, fixation, migration index and half dyeing time were also calculated for further analysis of dyeing behavior of the prepared dyes. As a result, both dyes exhibited the superior solubilities and satisfactory light absorption properties. Also, monofluorotriazine-vinylsulfone bifunctional dyes showed moderate sensitivity to alkalinity and proper kinetic index values compared with the monochlorotriazine-vinylsulfone bifunctional dyes and the imported dyes. The results indicated monofluorotriazine-vinylsulfone bifunctional structure of the dye is suitable for cold pad batch dyeing.

• Textile Coloration and Finishing
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• v.18 no.5 s.90
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• pp.15-21
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• 2006

Temporarily solubilized azo disperse dyes containing ${\beta}$-sulfatoethylsufonyl group were applied to acetate fabric and the feasibility of dispersant-free dyeing was investigated. The color yields of the dyes on acetate fabric were found to be dependent on dye bath pH as well as dyeing temperature. The optimum results were obtained at pH 6 and $80^{\circ}C$. The dyes showed good exhaustion and levelling properties. Vinylsulfone derivatives of the dyes were prepared and applied to acetate with dispersant. Dyeing properties of the temporarily solubilized disperse dyes were similar to or better than those of the vinylsulfone dyes. The dyes showed moderate to good fastness properties on acetate.

• Bulletin of the Korean Chemical Society
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• v.34 no.1
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• pp.287-290
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• 2013

• Textile Coloration and Finishing
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• v.23 no.1
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• pp.11-20
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• 2011

UV-induced surface copolymerization has been widely applied as a simple, useful and versatile approach to improve the surface properties of textiles. C.I. Reactive Black 5 and acrylic acid (AA) were continuously grafted onto cotton by UV irradiation. The photografting may occur by the copolymerization of AA with the vinylsulfone reactive dye which photochemically converted from the bissulfatoethylsulfone reactive group. The graft yield and color yield were influenced by UV energy, the dye and photoinitiator concentrations, a mole ratio of AA to dye, and pH. The coloration of cotton fabrics having a K/S of 7.0 can be obtained under a UV irradiation energy of 15$J/cm^2$ by the photografting of an aqueous alkaline formulation of 6% dye concentration containing 3% photoinitiator concentration on the weight of monomers, and a 3:1 mole ratio addition of AA to the dye. Furthermore, the photochemically dyed cotton fabrics showed comparable washing (staining) and rubbing fastness to conventional reactive dyeing method except shade change in the wash fastness and light fastness.