Process

%

Chemical

^oC

Time(min)

PH

Comments

Washing

200

   Water

40

0.5

   Rockol  642

30

Drain

150

   Water

35

Neutralization

1

   Sodium formate

30

0.5

  Sodium bicarbonate

3×15

5.2

Check Ø with B.C.G

Drain

Washing

300

   Water

35

5

Drain

100

   Water

35

Retannage

3

   Rockytan RE-540

30

5

   Rockytan RD

30

1

   Rockytan RR7

30

2

   Mimosa extract

30

2.5

   Rockytan ROS

2

   Chest nut extract

Dyeing

3

   Dye

60

Check Ø Penetration

0.3

   Formic acid

30

Drain

100

   Water

50

Fatliquoring

3

   Rockol  LNP-375

3

   Rockol OPS-322

2.5

   Rockol LNE-918

1.5

   Rockol OFL

60

1

   Formic acid

2×15

3.7

Drain

Washing

300

   Water

20

5