| 配方类型： |
LEATHER |
| 配方说明： |
Plumping chrome-tanned Calf Skins |
| 配制方法： |
Wash 20 min at 100'F. Neutralize with 0.5% sodium bicarbonate for 20 min at 80'f. Wash 10 min at 80'f and 10 min at 100'F. Add: 3% sumac extract, 3/4% "Chembark" T, 3% "Leukanol" ND, 4/10% "Gantrez" AN-139.
Run 30 min at 120'F. Add: % potassium oxalate, 1% formic acid. Run 15 min. Wash 10 min at 120'F.
To upgrade side leather by imparting body and roundness, "Gantrez" AN is usually applied to the blue cream leather in a drum using the dry powder and common salt in a short float. |
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