Treatment

Condition

Time

Stone Wash

Temperature = 40˚C

Total liquor - 500 liter

Bleaching powder - 4% (4 kg)

Soda Ash - 8 kg (8%)

Add pumic stone - Sample (1:2)

30 min., 5min.

And 10 min.

Caustic Wash

Temperature = 60˚C

Total liquor - 500 litters

Acetic acid - 1% (1 liter)

Softener - 0.1% to 0.5%

40 min., 10 min.

Pigment Wash

Pretreatment:

Sample - 100 kg

Water - 500 liter

M: L - 1:5

Detergent - 1% owf

Temperature - 60˚C

Finishing:

Softener - 0.1% to 0.5%

30 min.5 min.

Acid Wash

Temperature = 50˚C

Water - 100 L

Potassium permanganate - 1.2 kg

OBA - 500 gm (0.5%)

60 min.

10 min.

15 min.

Sand Blasting

Total liquor - 500 liter

Costic soda - 2% (2 kg)

Hydrogen peroxide - 5 ml/l

Soda ash - 2%

Temp - 700˚C

30 min., 60 min.

Normal wash

Temperature = 40˚C

Water - 500 L

Softener - 0.1% - 0.5%

Detergent - 1 kg (1%) (Liquor)

Color fixing agent - 1% (1 kg)

30 min.

10 min.

Super White Wash

Water - 500 liter

Detergent - 2%

Caustic soda - 4%

Hydrogen peroxide - 10%

Stabilizer - 5%

Acetic acid - 1%

Florescent whiting agent (OBA) - 1%

75 min.

10 min.