In order to combine the desirable properties of disperse and reactive dyes on nylon, namely the excellent coverage of substrate irregularities and high wet fastness, reactive disperse dyes were synthesized from intermediate materials. In this research work, three disperse dyes were synthesized and subsequently three reactive disperse dyes were produced from them. Synthesized dyes were purified by crystallization. Thin layer chromatography (TLC) was used to control the purity of synthesized dyes. After purifying the products, identification of new dyes with FT-IR, UV-VIS spectroscopy TLC and measuring melting point were performed. Synthetic disperse and reactive disperse dyes were grinded by ball mill in order to decrease their particle size and become more uniformly. Then, the synthesized dyes were used for dyeing wool and conventional nylon fibers. Considering the increasing importance of nanotechnology, the dyeing properties of synthesized dyes on nylon nano fibers were also examined. To dye applied goods with synthesized reactive disperse dyes, the dyeing method of a two-stage bath was studied and the dyeability of the products was evaluated by color strength, degree of staining and fixation. For further investigation, the title of physical chemistry of synthesized disperse and reactive disperse dyes on wool, nano fibers and ordinary nylon was introduced. After dyeing, the dyeing properties were investigated by evaluating the physical chemistry parameters such as half-dyeing time, rate constant, penetration coefficient, activation energy, isotherm adsorption, affinity, enthalpy and entropy. Then, the washing, light and rubbing fastness of samples were measured. The results from experimental shows that reaction between the reactive disperse dyes with nylon fibre were occurred. Washing, light and rubbing fastness of the dyeing obtained from reactive disperse dyes improved, compared with disperse dyes.
