Question

Write the sequence of mechanism of Textile Dyeing.
A. Dissolution of dye molecules in water
B. Absorption of dye into the fiber
C. Dispersion of the dye in the bath
D. Diffusion of dye inside the fiber
Choose the correct answer from the options given below:

• A. A, B, C, D
• B. A, C, B, D
• C. B, A, D, C
• D. C, A, B, D

Hint:

Mechanism of dyeing: Dissolution → Dispersion → Absorption → Diffusion.

Answer 1

The Correct Option is B

Step 1: First step – dissolution.
The dye molecules must first dissolve in water to be available for dyeing. Hence A is the starting step.
Step 2: Second step – dispersion.
Once dissolved, the dye molecules are dispersed uniformly in the dye bath. Hence C follows next.
Step 3: Third step – absorption.
The fiber surface absorbs the dye molecules from the dye bath. Hence B comes after dispersion.
Step 4: Final step – diffusion.
The dye molecules then diffuse into the fiber interior, giving permanent coloration. Hence D is last.
Step 5: Conclusion.
The correct sequence is A → C → B → D.