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Raw Material |
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Vegetable pretanned E.I. Persians |
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Product Used |
Top |
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Levapon OL |
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Anionic wetting and degreasing agent |
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Chromosal B |
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Chrome tanning material with approx. 33 % basicity |
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Tanigan PAK |
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Lightfast retanning material with buffering neutralizing effect |
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Baymol A Liq |
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Non-ionic degreasing and wetting agent |
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Percentage on dry weight |
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Wetting Back |
1000.0% |
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Water 40°
C |
15 min |
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Drain Float |
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Stripping / degreasing |
Top |
| |
200.0% |
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Water 40°
C |
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| |
4-6% |
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Sodium sulphite undissolved |
15 min. |
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Add |
2.0% |
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Levapon DL (dukyte 1:5 40°
C) |
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pH of float approx. 6.0 |
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Rinsing
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Water 30°
C |
15 min |
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Retannage |
Top |
| |
200.0% |
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Water 30°
C |
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| |
1-1.5% |
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Formic acid 85 % (dilute 1:10) |
10 min |
| |
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pH of floats; 3.5-3.7 |
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Add |
15.0% |
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Chromsal B undissolved |
5hrs |
| |
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pH of floats: 3.5-3.8 |
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| |
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Horse up overnight |
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Neutralisation |
Top |
| |
200.0 % |
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Water 40°
C |
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| |
3.0 % |
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Tanigan PAK undissloved |
15 min |
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Add |
1-1.5 % |
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Sodium bicarbonate (dilute1:10) |
45 min |
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pH of float:6.0-6.5 |
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Cross section blue (BCG) |
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Rinsing
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Water 50°
C |
10min |
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Fatliqouring |
Top |
| |
200.0% |
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Water 50°
C |
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| |
2.0% |
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Cutisan TMK |
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| |
10.0% |
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Water 70°
C for emulsifying |
30 min |
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Rinsing
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Water 50°
C |
5 min |
| |
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Horse up overnight, set out, suspension dry, condition, stake, buff, weigh (=dry weight) |
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Percentage on dry weights: |
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Dyeing |
Top |
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Wetting Back |
1000.0% |
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Water 50°
C |
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| |
0.5% |
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Baymol A Liq. (dilute 1:5 30°
C) |
45 min |
| |
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Drain float |
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Predyeing |
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Without float |
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2/3 |
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Dyestuff undissolved approx. |
30 min |
| |
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Until desired penetration is reached |
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Add |
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Formic acid 85%
75-100% on weight of dyestuff used
(Dilute 1:10) |
30 min |
|
Add |
500.0% |
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Water 60°
C |
10 min |
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Add |
4.0% |
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Chromosal B undissolved |
45 min |
| |
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Drain float |
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Top Dyeing |
500.0% |
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Water 50°
C |
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1/3 |
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Dyestuff (dissolved hot) |
20min |
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Add |
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Formic aicd 85%
100% on weight of dyestuff used (dilute 1:10) |
30 min |
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Rinsing
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Water 50°
C |
10 min |
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After treatment |
Top |
| |
200.0% |
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Water 50°
C |
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1.0% |
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Persiderm SIN |
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2.0% |
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Persoftal SWA |
30 min |
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Horse up overnight, set out, suspension dry, condition, mill, toggle |
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Notes |
Top |
- For optional stripping effects possible add in 2 to 3 parts
- After treatment with Persiderm SIN (water-soluble repellent agent) and Persoftal SWA (anionic auxiliary) improves the handle of the suede and gives a silk lustre effect
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