Transfer printing with disperse dyes on cotton fabric modified with an aqueous tolylene diisocyanate derivative

Adsorption thermodynamic and kinetic of disperse dye on cotton fiber modified with tolylene diisocyanate derivative

“…And the cotton fabric was modified with an aqueous tolylene diisocyanate derivative (D.S. = 0.226%) based on the results of previous research (Guan et al 2009). To remove the chemicals clung on the fiber, the fiber was boiled in deionized water for 30 min and squeezed to remove excess liquor and air dried.…”

“…In the previous papers, the aqueous tolylene diisocyanate derivative (TDD) was synthesized and the modifying process of the cotton fabric modified with TDD was discussed (Guan et al 2009). From the SEM photograph, the surface of modified cotton fiber was smoother than original sample.…”

“…And with the modifying agent concentration and bake temperature increasing, and the curing time prolonging, the whiteness values of modified sample was gradually decreasing and the tensile and tear strength of modified sample declined obviously. These phenomenon might be that, on the one hand, the amount of hydroxyl on glucose macromolecule decreased and the hydrogen bonds between the macromolecular chains of cellulose was broken, on the other hand, the crystalline region of cotton fiber was partly destroyed and the degree of polymerization of the macromolecular chains of glucose decreased (Guan et al 2009). …”

“…(Guan et al 2009). For optimizing the printing process, the effect of the degree of substitution (D.S.)…”

“…By K/S value, the relationship between spectral reflectance (R, %) of the sample and its adsorption (K) and scattering (S) characteristics was established. And considering to the color difference, fastness and tensile strength of modified and printed cotton fabric, an optimum transfer printing conditions were obtained (Guan et al 2009). …”