List of top Textile Engineering and Fibre Science Questions 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

Amongst the following, the property(ies) of a disperse dye that allow(s) it to be applied on polyester by thermofixation method is/are

A sample of cotton fabric is dyed with a vat dye at 60°C till equilibrium dye uptake is reached. Another sample of the same cotton fabric is dyed with the same dye at 90°C till equilibrium, keeping all other parameters same. Amongst the following, the correct statement(s) is/are:

A cotton fabric is to be dyed with 2 % shade (on the weight of fabric). If dye concentration is 0.4 g/L, then the material-to-liquor ratio is 1 : X. The value of X (in integer) is