Direct Dyes Experiment No. 1

To see the effect of MLR in the application of direct dyes.

To dye cotton fabric with best combination of MLR, electrolyte and dye and compare the effect of different after treatments given to the dyed fabric. (correct)

To see the effect of concentration of dye.

To see the effect of concentration of salt/electrolyte.

Alizarin

Congo Red (correct)

Sulphonated Azo

Indigo

Cellulosic fibers have a strong affinity for them. (correct)

They are less expensive.

They have better wet-fastness properties.

They are sulphonated azo compounds.

<p>It fulfilled an outstanding demand for inexpensive and easy to apply dyes.</p> Signup and view all the answers

<p>Cellulose has no polar groups capable of forming salt linkages.</p> Signup and view all the answers