Process

%

Chemical

^oC

Time(min)

PH

Comments

Washing

200

Water

40

0.3

Rockol L-151

20

Drain

100

Water

35

Retannage I

2

Rockytan RE-808

20

4

Chrome ( 26 / 33 )

0.3

Sodium formate

60

0.7

Sodium formate

30

4.3

Drain

100

Water

35

Neutralization

0.7

Sodium formate

30

0.5

Rockytan TAK

30

4.8

Check Ø with B.C.G

Drain

Washing

300

Water

35

5

Drain

80

Water

35

Retannage II

2

Rockytan RR7

30

2

Rockytan RD

20

3

Rockytan RR7

2

Mimosa extract

30

2

Rockytan RR7

2

Rockytan ROS

30

2

Mimosa extract

Dyeing

1.5

Dye

45

Add

50

Water

60

Fatliquoring

3

Rockol CS-414

2

Rockol OPS-322

1.5

Rockol OFL

60

1

Formic acid

2×15

3.7

Drain

Washing

200

Water

20

5