During washing of clothes, we use indigo due to its
During washing of clothes, we use indigo due to its
A). Better cleaning action
B). Proper pigmental composition
C). High glorious nature
D). Very low cost
1 answers
Proper pigmental composition
Indigo is a dye different than any other. It does not require any mordant. Rather it is dyed through a living fermentation process. The process “reduces” the Indigo, changing it from blue to yellow. In this state, it dissolves in an alkaline solution. The fibre is worked in the solution, or “vat”. When brought out to the air, it is a bright green. Slowly the air changes it to the beautiful deep and rich blue of Indigo.
Other Questions
1. Which of the following is used for regulated electric supply
4. What is the force of attraction between any two bodies by virtue of their masses is called?
5. Who among the following is credited for the Corpuscular theory of light?
6. Visible light has a higher frequency than
7. Speed of sound in air is unaffected by change in
9. The three famous law of Kepler is related to
10. What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?