Technical Information

Cow wet blue to nappa                                           

Recipes
 
 

Percentage On: shaved weight                                             Ref No: 8

Thickness (mm):       1.5-1.6                                                        

Process

%

Chemical

oC

Time(min)

PH

Comments

Washing

200

Water

40

 

 

 

 

0.2

Formic acid

 

 

 

 

 

0.2

Rockol 642

 

20

 

 

Drain

 

 

 

 

 

 

 

100

Water

35

 

 

 

Rechroming

4

Chrome(26/33)

 

 

 

 

 

0.5

Sodium formate

 

90

 

O.N(Run 1 hr-stop5min )

Drain

 

 

 

 

 

 

 

150

Water

35

 

 

 

Neutralization

1

Sodium formate

 

30

 

 

 

0.7

Sodium bicarbonate

 

3 ×15

5

Check Ø with B.C.G

Drain

 

 

 

 

 

 

Washing

300

Water

35

5

 

Drain

 

80

Water

35

 

 

 

Dyeing

3

Dye(Brown)

 

60

 

Check Ø penetration

Retannage

5

Rockytan RE-540

 

30

 

 

 

3

Rockytan RR7

 

30

 

 

 

1.5

Rockytan RD

 

20

 

 

 

2.5

Rockytan ROS

 

 

 

 

 

2

Mimosa extract

 

45

 

 

Add

50

Water

60

 

 

 

Fatliquoring

1.5

Rockol FM-222

 

 

 

 

 

2.5

Rockol LNP-375

 

 

 

 

 

3

Rockol OPS-322

 

60

 

 

 

1.5

Rockytan RE-808

 

20

 

 

 

1

Formic acid

 

2×15

3.7

 

Drain

 

 

 

 

 

 

Washing

200

Water

 

5

 

 

  Rinse-horse up-samming-setting-vacuum (2¢-60oc)-drying-staking-dry vacuum(45sec-60 oc)

#2, Ground Floor, Bldg. 43, Iranshahr Ave., Tehran – IRAN

P.O.Box: 15815 / 3736

e-mail: info@rockchemie.com

Tel: +98 (21) 88843227 - 8           Fax: +98 (21) 88826168