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Products Used
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Cismollan BM |
|
Bactericidal and fungicidal soaking agent with good slating agent |
|
Baymol A Liq |
|
Non-ionic degreasing and wetting agent |
|
Baychrome F |
|
Organically seeked Chrome tanning material with approx. 50% basicity and 30% chrome oxide |
|
Chromosol B |
|
Chrome tanning material with approx. 33% basicity. |
|
Baychrome A |
|
Self basifying chrome tanning material with approx. 67% theoretical basicity |
|
Preventol L |
|
Bactericidal ad fungicidal preserving agent to prevent mould forestation |
|
Tanigan PC |
|
Lightfast retanning material with buffering neutralizing agent |
|
Percentage on dry Weight: |
|
Dirt Soak |
1000.0%
|
|
Water 25°
C |
|
| |
1 g/l
|
|
CismollanBM |
1 day |
| |
|
|
Green flash |
|
| |
|
|
|
|
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Main Soak |
1000.0%
|
|
Water 25°
C |
|
| |
1.0%
|
|
Cismollan BH |
|
| |
1.0%
|
|
BaymolA Liq.(dilute 1:5 50°
C) |
30 min |
| |
|
|
Run for 5 min every hout for approx. |
2 days |
| |
|
|
Drum dry or horse up skin in drain |
60 min |
|
Method :1 Wool Save liming
|
Top |
|
Lime Painting |
1kgs
|
|
Sodium Sulphide conc. 60/62% |
|
| |
2.5kgs
|
|
Hydrated lime (2) |
|
| |
8 l
|
|
Water 25°
C(conc. Approx. 25°
B6 |
|
| |
|
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Paint on flash side, stack approx. |
|
| |
|
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Dewool, weigh (* Dewooled weight) |
|
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Percentage on Dewool weight |
|
Liming (3) |
300%
|
|
Water 25°
C |
|
| |
0.5%
|
|
Baymol A Liq. (dilute1:5 50°
C) |
|
|
Approx. |
3%
|
|
Sodium sulphide Conc. 60-62% |
2-4 hrs |
| |
|
|
Add Skins |
30 min |
| |
|
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Run for 2 min. every hour |
1-2 days |
| |
|
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Drain float |
|
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Washing |
300.0%
|
|
Water 30°
C |
10 min |
| |
|
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Flash, weigh (* Fleshing Weight) |
5 min |
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Method:2 Wool burn Liming
|
Top |
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Weigh |
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(* Soaked weight) |
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Perscentageon Soaked Weight: |
|
Drum Painting (3) |
30%
|
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Water 30°
C (4) |
|
| |
0.5%
|
|
Baymol Aliq. (dilute 1:5 50°
C) |
5 min |
|
Add |
3.0%
|
|
Sodium Sulphide conc. 60-62% |
|
| |
3.0%
|
|
Hydrated lime (5) |
60 min |
|
Add |
300.0%
|
|
Water 30°
C add slowly within approx. run for 2 min. every hour approx. |
1-2 days |
| |
|
|
Drain float |
|
|
Washing |
300.0%
|
|
Water 30°
C |
10 min |
| |
|
Flesh, weigh (* Fleshed Weight) |
|
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Processing of the skins limed according to Method I and 2 is continued as follows; |
Top |
|
Washing |
300%
|
|
Water 35°
C |
10 min |
| |
|
|
Drain Float |
|
|
Deliming |
300.0%
|
|
Water 30°
C |
|
| |
0.6-0.8%
|
|
Ammonium sluphate undissolved |
|
| |
0.5%
|
|
Sodium bisulphete powder undisssolved |
45 min |
| |
|
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PH of float: approx 7.0-8.0, cross section with phenolphthelein = colourless |
|
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Bating |
0.5-1.0%
|
|
Polyzim 202 (6) |
60 min |
| |
|
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PH of floats approx. = 8.0 |
|
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Rinsing |
|
|
Water 35°
C |
15 min |
| |
|
|
Drain float |
|
|
Degreasing (7) |
10-15%
|
|
Kerosane |
|
| |
1-2 %
|
|
Baymol A Liq. (dilute 1:5 50°
C) |
60 min |
|
Add |
200%
|
|
Water 35°
C |
10 min |
| |
|
|
Drain Float |
|
|
Washing |
200%
|
|
Water |
|
| |
0.2%
|
|
Baymol A Liq. (dilute 1:5 50°
C) |
60 min |
| |
|
|
Drain float |
|
|
Rinsing |
|
|
Water |
15 min |
| |
|
|
|
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Tanning Method 1 : Baychrome F Tannage
|
Top |
| |
|
|
|
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Pickle |
60%
|
|
Water 20°
C |
|
| |
6 %
|
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Comman salt |
10 min |
| |
|
|
Wash |
|
|
Add |
0.4-0.5%
|
|
Sulphuric Acid 66°
8b |
|
| |
|
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Dilute 1:10 |
|
| |
|
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PH of floats 3.8-3.9 |
|
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Tannage |
|
|
|
|
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Add |
5-7%
|
|
BayChrome F undissolved |
60 min |
|
Add |
0.3%
|
|
Preventol L (undissolved) |
5-6 hrs |
| |
|
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PH of floats 3.8-3.9 |
|
| |
|
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Final tempreture 38-40°
C |
|
| |
|
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Processing of wet Blue : horseup |
|
|
Tanning Method II : Combination Tannage
|
Top |
| |
|
|
|
|
Pickle |
60%
|
|
Water 20°
C |
10 min |
| |
6%
|
|
Comman Salt |
|
|
Add |
1%
|
|
Sulphuric Acid 66°
B6 |
60 min |
| |
|
|
(dilute 1:10) |
|
|
Tannage |
|
|
|
|
|
Add |
3-4%
|
|
Chromosaol B undissolved |
60 min |
|
Add |
5-6%
|
|
BaychromeA undissolved |
15min |
|
Add |
0.3%
|
|
Preventol L (dilute 1:2) |
5-6 hrs |
| |
|
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Ph of Float: 3.4-3.6 |
|
| |
|
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Processing of wetblue : horse up |
|
|
Processing of Chrome Crust:
|
Top |
|
The process according to Method I and II is continued as follows: |
|
Add |
2%
|
|
Tanigan PC undissolved |
60 min |
| |
|
|
Ph of floats: 4.2-4.6 |
|
|
Rinsing |
|
|
Water 50°
C |
10 min |
|
Fatliqouring |
200%
|
|
Water 50°
C |
|
| |
3%
|
|
Coripol DXA (9) |
|
| |
0.75%
|
|
Neat foot oil raw |
|
| |
20%
|
|
Water 7°
C for emulsifying |
60 min |
|
Rinsing |
|
|
Water 20°
C |
5 min |
| |
|
|
Horse up |
|
|
Notes: |
Top |
- A third soak in the drum can be given if necessary
- When processing particularly spongy or loosely structured materials, the hydrated lime is placed partly or completely by Koalin, is a quantity giving a concentration of 25°
86
- For soft types of leather a reliming may be carried out :
- 100% used lime liquor
- 100% water 25
C
- 2% hydrated lime
-
- 0.25% Baymol A liq. (dilute 1:5 50
C) 30 min
- fun for 2min every hour approx. 1-4 days
- For long wool sheep skins dilute sodium sulphide with water
- For the reason stated under (2), the hydrated lime proportion is reduced accordingly or omitted altogether
- Instead of the combination of kerosane/Baymol a Liq., 5-8% Baymol D may also be used for degreasing, Baymol D is biodegradable
- The proportionate use of formic acid (e.g. 0.2% formic acid and 0.2% sulphuric acid permits a faster rate of pickle penetration, and leads to a particularly fine grain
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28/08/02 |
FeedBack
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Product |
Weight |
Liming I |
Liming II |
Tanning I |
Tanning II |
Fatliqouring |
Notes
