Photofading Mechanism of Reactive Blue Dyes on Cotton against Sunlight and Xenon-arc lamp

Authors

  • Shekh Md. Mamun Kabir Assistant Professor Department of Wet Process Engineering Bangladesh University of Textiles Tejgaon, Dhaka https://orcid.org/0000-0001-6656-7796
  • Sk. Mohammad Raafi Department of Wet Process Engineering
  • Joonseok Koh Division of Chemical Engineering,

Abstract

The photofading mechanism investigates in this study for dyeing of cotton fabric with five different blue reactive dyes by exposing sunlight and xenon arc lamp. Fading rate has enhanced by prolonging the time period 24 -120 hr and stabilized at 72 hr of irradiation. Furthermore, a significant colour difference obtained with unexposed and exposed cotton fabric dyeing with di fluro pyrimidine azo (ΔE= 5.5) by irradiating xenon arc lamp. The structural characteristics of both the dye and substrates confirmed by using FT-IR and UV-Vis spectroscopy. Among five reactive blue dyes, the di fluro pyrimidine and copper metal complex azo dyes appeared most sensitive. However anthraquinone based reactive dyes showed the best stability for sunlight and xenon arc lamp.

Author Biographies

  • Shekh Md. Mamun Kabir, Assistant Professor Department of Wet Process Engineering Bangladesh University of Textiles Tejgaon, Dhaka
    Assistant Professor Department of Wet Process Engineering Bangladesh University of Textiles Tejgaon, Dhaka
  • Sk. Mohammad Raafi, Department of Wet Process Engineering
    Bangladesh University of Textiles, Dhaka
  • Joonseok Koh, Division of Chemical Engineering,
    Konkuk University, Seoul, South Korea

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Published

2020-12-03

Issue

Vol. 11 No. 4 (2020)

Section

Scholarly Articles

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