Question:

Consider the following equilibrium dyeing isotherms for dyeing of polyester with a disperse dye at 100 °C and 120 °C. Amongst the following, the correct statement(s) is/are
equilibrium dyeing isotherms for dyeing of polyester with a disperse dye at 100 °C and 120 °C

Updated On: Jul 20, 2024
  • Rate of dyeing at 100 °C is higher than that at 120 °C
  • Saturation dye-uptake at 120 °C is higher than that at 100 °C
  • Dye solubility at 120 °C is higher than that at 100 °C
  • Dye solubility at 120 °C is lower than that at 100 °C
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The Correct Option is B, C

Solution and Explanation

The correct options are (B):Saturation dye-uptake at 120 °C is higher than that at 100 °C ,(C):Rate of dyeing at 100 °C is higher than that at 120 °C
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