Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Organic Solvent Dyeing (I) - The dyeing of PET by C. I. Disperse Violet 1 -

유기용매염색 (I) - C. I. Disperse Violet 1에 의한 PET 염색 -

  • Kim, Tae Kyeong (Department of dyeing and finishing, College of Engineering, Kyungpook National University, Taegu, Korea) ;
  • Heo, Jae Won (Department of dyeing and finishing, College of Engineering, Kyungpook National University, Taegu, Korea) ;
  • Lim, Yong Jin (Department of dyeing and finishing, College of Engineering, Kyungpook National University, Taegu, Korea)
  • Published : 1997.08.01
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Abstract

As a non-aqueous dyeing method, organic solvent dyeing was discussed, The dye uptakes on PET and the solubilities of C. I. Disperse Violet 1 in 24 kinds of organic solvents including water were investigated, and the partition coefficients in PET- solvents system were also obtained from their isotherms. Contrary to in the other solvents, the dye uptake of C. I. Disperse Violet 1 on PET in hexane was even much higher, and also considerable in cyclohexane. The logarithmic plot of the dye uptakes versus the solubilities showed that the dye uptakes are linear and inversely proportional to the solubilities. The effect of $T_g$ decrease of PET in organic solvents to dye uptake seems to be very small relative to the effect of solubility, and so negligible.

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