Technical Information

Cow wet blue to shoe upper leather  

                                              

Recipes

 
 

Percentage On: shaved weight                                             Ref No: 10

Thickness (mm): 1.4 – 1.5 mm                                             

Process

%

Chemical

oC

Time(min)

PH

Comments

 

 

 

 

 

 

 

Washing

200

Water

40

 

 

 

 

0.3

Rockol 642

 

 

 

 

 

0.3

Formic acid

 

20

 

 

Drain

 

 

 

 

 

 

 

100

Water

35

 

 

 

Retannage I

1.3

Relugan GTW(BASF)

 

 

 

 

 

0.5

Rockol FM-222

 

20

 

 

 

3

Chrome (26/33)

 

 

 

 

 

0.3

Sodium formate

 

60

 

 

Add

0.7

Sodium formate

 

30

 

 

Drain

 

 

 

 

 

 

 

100

Water

35

 

 

 

Neutralization

0.7

Sodium formate

 

30

 

 

 

0.5

Sodium bicarbonate

 

3×15

5-5.1

Check Ø  with   B.C.G

Drain

 

 

 

 

 

 

Washing

300

Water

35

10

 

 

Drain

 

 

 

 

 

 

 

80

Water

35

 

 

 

Retannage II

4

Rockytan RE-540

 

30

 

 

 

3

Rockytan RR7

 

30

 

 

 

3

Rockytan ROS

 

 

 

 

 

2.5

Rockytan RAB

 

 

 

 

 

3

Mimosa extract

 

45

 

 

Dyeing

3

Dye

 

30

 

Over night(check Ø )

Add(next day)

50

Water

60

 

 

 

Fatliquoring

2.5

Rockol CS-414

 

 

 

 

 

3.5

Rockol FM–222

 

 

 

 

 

2.5

Rockol LNE-918

 

60

 

 

 

1

Formic acid

 

2×15

3.5

 

Drain

 

 

 

 

 

 

Washing

200

Water

20

5

 

 

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