M Sadeghi-Kiakhani - Amirkabir University of Technology, Faculty of Textile Engineering
K Gharanjig - Department of Organic Colorants, Institute for Color Science and Technology
M Arami - Amirkabir University of Technology, Faculty of Textile Engineering

In this paper, dissolution of a new disperse dye derived from naphthalimide was investigated in the presence of anionic and nonionic surfactants. In addition, the important factors such as surfactant concentration, temperature and time in dissolution of a disperse dye were evaluated. The dissolution kinetic of dye in water at different temperatures shows that the dissolution rate is according to exponential equation. The maximum and minimum values of dissolution rate of dye were at 25 C and 80 C, respectively. The dye dissolution rate in anionic surfactant was greater than the nonionic surfactant.

Kinetic study, Dissolution, Naphthalimide, Disperse dye, Surfactants