Process

%

Chemical

^oC

Time(min)

PH

Comments

Washing

200

Water

40

0.3

Rockol L-151

20

Drain

100

Water

35

Retannage I

3

Rockytan RHN

2

Rockytan RAL

60

1

Sodium formate

30

Drain

150

Water

35

Neutralization

1

Sodium formate

30

1.5

Rockytan TAK

30

5.2

Check Ø with B.C.G

Drain

Washing

300

Water

35

5

Drain

80

Water

35

Retannage II

3

Rockytan RR7

30

2

Rockytan RD

30

0.5

Rockytan RNOL

4

Mimosa extract

2

Chest nut extract

3

Dye

60

Check Ø Penetration

Add

50

Water

60

Fatliquoring

4

Rockol LNE-918

2

Rockol FM-222

60

1.5

Rockytan RE-540

30

0.5

Formic acid

2×15

1

Rockytan ROS   

20

1

Formic acid

2×15

3.5

Drain

Washing

200

Water

20

5

3.7