SL

Dyeing variables

Selected proportions

1

Wetting agent (g/l)

1

2

Sequestering agent (g/l)

1.5

3

Levelling agent (g/l)

1

4

Concretion Reactive dye (%)

4%

5

Glauber salt (Na2SO4∙10H2O), (g/l)

60 g/l

6

Sodium Carbonate (Na2CO3), (g/l)

15 g/l, 18 g/l, 20 g/l

7

Dyeing Time (minutes)

60 mins

8

Dyeing Temperature (˚C)

(30˚C, 60˚C)

9

Dyeing pH

10 - 10.5

10

Sample weight

5 gm