Paper Information

Journal:   JOURNAL OF COLOR SCIENCE AND TECHNOLOGY   WINTER 2011 , Volume 4 , Number 4; Page(s) 223 To 231.
 
Paper: 

STUDY OF ADSORPTION ISOTHERM OF NANIONIC DYES ON NYLON 6 FIBERS

 
Author(s):  SAFI M.*
 
* DEPARTMENT OF COLOR PHYSICS, INSTITUTE FOR COLOR SCIENCE AND TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 
Sorption isotherms of three nonionic disperse dyes, Blue 3, Red 1 and Yellow 3 on nylon 6 fibers were studied at 90 and 98°C. A remarkable deviation from Nernst trend was obtained for all cases. Performance of Dual-Mode sorption model which is consisting of Langmuir mechanism for covering of initial curvature zone and Nernst model for the later nearly linear part was tested. Dual-Mode fitting was appeared to be in good agreement with experimental data. In addition, temperature effect on Dual-Model isotherm and on saturation point of fiber at two selected temperature was compared. The results showed the capacity of fiber for solution sorption is increased by increasing the temperature; however an important part of the total sorption was still followed as Langmuir isotherm.
 
Keyword(s): DISPERSE DYE, NYLON 6, SORPTION ISOTHERM, NERNST, DUAL-MODE, LANGMUIR
 
References: 
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