Process

%

Chemical

^oC

Time(min)

PH

Comments

Washing

200

    Water

40

0.3

    Rockol  642

30

Drain

100

    Water

35

Retannage I

3

    Chrome ( 26/33 )

0.3

    Sodium formate

60

0.3

    Sodium bicarbonate

30

4.4

Drain

150

    Water

  35

Neutralization

1

    Sodium formate

30

0.3

    Sodium bicarbonate

3 х 15

5.2

Check Ø with B.C.G

Drain

Washing

300

    Water

35

5

Drain

80

    Water

35

Retannage II

3

    Dye(black NT)

60

CheckØ penetration

5

    Rockytan RE-540

30

3

    Rockytan RD

30

2

    Mimosa extract

30

3

    Rockytan RR7

20

2

    Mimosa extract

30

50

    Water

60

Fatliquoring

2.5

    Rockol LNE-918

2.5

    Rockol CS-414

2

    Rockol LNP

60

1

    Formic acid

2 х 15

3.7

Drain

Washing

200

    Water

20

5