Question
Textile Engineering and Fibre Science Question on Dyeing processes and machines
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
A
Rate of dyeing at 100 °C is higher than that at 120 °C
B
Saturation dye-uptake at 120 °C is higher than that at 100 °C
C
Dye solubility at 120 °C is higher than that at 100 °C
D
Dye solubility at 120 °C is lower than that at 100 °C
Answer
Saturation dye-uptake at 120 °C is higher than that at 100 °C
Explanation
Solution
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