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Investigation of the Stripping Process of the Reactive Dyes Using Organic Sulphur Reducing Agents in Alkali Condition
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  • Investigation of the Stripping Process of the Reactive Dyes Using Organic Sulphur Reducing Agents in Alkali Condition
  • Investigation of the Stripping Process of the Reactive Dyes Using Organic Sulphur Reducing Agents in Alkali Condition
저자명
Ogulata. R. Tugrul,Balci. Onur
간행물명
Fibers and polymers
권/호정보
2007년|8권 1호|pp.25-36 (12 pages)
발행정보
한국섬유공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This paper focuses on the stripping application of the reactive dyes using different recipes set up with different reducing agents and working parameters. We tried to develop alternative stripping methods using two kinds of thioureadioxide because of several disadvantages of sodium dithionite. The pretreated woven fabrics were dyed at 0.25%, 1%, 4% owf% using five commercial reactive dyes by exhaust method. Totally, 180 specimens were dyed. Then, these specimens were stripped using alternative recipes. In these recipes, we investigated the effects of types of the reducing agents, the concentration of the reducing agents and caustic, process temperature and the presence of leveling agent on the stripping efficiency. In order to examine the efficiency of the stripping processes, we measured the colorimetric values($L^*,;{Delta}L,;{Delta}E$) of pretreated, dyed and the stripped samples using commercial spectrophotometer and international measurement method. The experimental results were statistically evaluated using analysis of variance(ANOVA) with significance level of $alpha=0.05$. According to the measured and calculated spectral results, we achieved to develop alternative methods using thioureadioxide instead of sodium dithionite. In terms of ANOVA, we found out that only concentration of caustic itself did not have significant effects on the efficiency of stripping.