5 Questions
What is the aim of Direct Dyes Experiment No. 1?
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.
Which dye was the first direct dye discovered by Bottiger?
Congo Red
What distinguishes direct dyes from basic and acid dyes?
Cellulosic fibers have a strong affinity for them.
What was the impact of the discovery of direct dyes on cotton dyeing?
It fulfilled an outstanding demand for inexpensive and easy to apply dyes.
Why was the assumption made that the binding forces between direct dyes and cellulose were purely physical?
Cellulose has no polar groups capable of forming salt linkages.
Test your knowledge of direct dyes experiment no. 1 which involves dyeing cotton fabric and examining the effects of various factors such as concentration of dye, electrolyte, and MLR. Understand the theory behind direct dyes and their application.
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