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Study of analytical methods for quantifying unfixed form of bifunctional reactive dyes used in dyeing cellulosic fibers (cotton)

Study of analytical methods for quantifying unfixed form of bifunctional reactive dyes used in... Abstract The objective of the present study was to examine the reliability and compatibility of three methods for quantifying the unfixed form of heterobifunctional reactive dye type monochlorotriazine/β-sulfatoethylsulfone used in dyeing cellulosic fibers (cotton). The first method is based on spectrophotometric analysis by measuring the absorbance of residual dyebath (after dyeing process) and residual soaping bath (after washing-off phase), the second one is based on colorimetric analysis by measuring the reflectance of dyed fabric, and the third on high-performance liquid chromatography (HPLC) technique. The purpose of the latter is to identify and quantify the hydrolyzed and inactive forms of dye in residual soaping bath. The calculated unfixed dye rates unequivocally prove the reliability and compatibility of these methods. According to the availability of the required laboratory instruments, we can select the most suitable method in every case, though the tests proved that the HPLC technique is most efficient. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fibers and Polymers Springer Journals

Study of analytical methods for quantifying unfixed form of bifunctional reactive dyes used in dyeing cellulosic fibers (cotton)

Chemchame, Y.; Popikov, I. V.; Soufiaoui, M.
Fibers and Polymers , Volume 11 (4): 7 – Jul 1, 2010
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References (19)

Publisher
Springer Journals
Copyright
2010 The Korean Fiber Society and Springer Netherlands
ISSN
1229-9197
eISSN
1875-0052
DOI
10.1007/s12221-010-0565-1
Publisher site
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Abstract

Abstract The objective of the present study was to examine the reliability and compatibility of three methods for quantifying the unfixed form of heterobifunctional reactive dye type monochlorotriazine/β-sulfatoethylsulfone used in dyeing cellulosic fibers (cotton). The first method is based on spectrophotometric analysis by measuring the absorbance of residual dyebath (after dyeing process) and residual soaping bath (after washing-off phase), the second one is based on colorimetric analysis by measuring the reflectance of dyed fabric, and the third on high-performance liquid chromatography (HPLC) technique. The purpose of the latter is to identify and quantify the hydrolyzed and inactive forms of dye in residual soaping bath. The calculated unfixed dye rates unequivocally prove the reliability and compatibility of these methods. According to the availability of the required laboratory instruments, we can select the most suitable method in every case, though the tests proved that the HPLC technique is most efficient.

Journal

Fibers and Polymers – Springer Journals

Published: Jul 1, 2010

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