Linked Answer Questions
A knitted fabric is to be dyed with a low substantive dye to 2% shade using exhaust method.
Question 82 (Textile Engineering & Fibre Science)
If the dye concentration is set 1 g/l, the material to liquor ratio, assuming 50% exhaustion at equilibrium, would be
| (A) | 25 |
| (B) | 2.5 |
| (C) | 0.25 |
| (D) | 0.025 |
[Show Answer]
Option A is correct.
Given in the question-
Dye %=2%
Dye concentration=1 g/l
Exhaustion=50%
The material to liquor ratio(M:L)=?
Assuming weight of fabric=100 kg
Dye=100 x 2%
Dye wt=2kg
Exhaust dye=2000 x 50/100
Exhaust dye=1000 gm
Exhaust dye=1 kg
By formula-
Concentration=Weight of dye/Volume of liquor
Concentration=