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Journal: JOURNAL OF COLOR SCIENCE AND TECHNOLOGY | Year:1389 | Volume:4 | Issue:4 | Start Page:223 | End Page:231

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Information Journal Paper

Title

STUDY OF ADSORPTION ISOTHERM OF NANIONIC DYES ON NYLON 6 FIBERS

Writers

SAFI M.

Pages

 Start Page 223 | End Page 231

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.

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