To get the best results, tanners are advised to maintain bath temperature at 34°C to 35°C and pH range - 8.5 - 9.0. Higher temperatures above 40°C may damage the enzymes.
Hence due care has to be taken to maintain the bath temperature between 34 °C to 35°C. The pH of the Bating Bath should be between 8.0 and 9.0 for good results and the duration of Bating depends on the final quality of leathers required. The following chart gives guidelines for Bating various types of Leather by using
Specification of enzyme CNB
Appearance: Light Brown to Off White Colour Powder
pH 10% Solution: 5.00 - 7.00
Moisture: 4.0% Max
Solubility: Soluble Shelf
Life: 2 years when kept closed under shade and at normal room temperature. Keep away from sunlight and moisture. Enzyme CNB is an improved version of Bating Enzyme for the leather industry.
SALIENT FEATURES:
1. Very Silky, Smooth Grain.
2. Good Air permeability.
3. More clean & White look.
4. Economy in use
5. Better scud & Pigmentation release.
| Type of Leather | (% on pelt wt.) pH | Duration |
|---|---|---|
| Goat Glace Kid | 0.4 % - 0.8 % 8.5 - 9.0 | 60' - 90 |
| Goat Softy | 0.8 % - 1.0 % 9.0 | 90' |
| Sheep Polished Upper | 0.4 % - 0.6 % 8.5 -9.0 60' | |
| Sheep Nappa | 0.3 % - 0.6 % 9.0 | 90' |
| Sheep Glove | 0.8 % - 1.0 % 9.0 | 90' - 120' |
| Cow Upper | 0.3 % - 0.6 % 8.5 | 30' - 45' |
| Cow Softy | 0.4 % - 0.8 % 8.5 | 45' - 60' |
| Cow Nappa | 0.6 % - 0.8 % 9.0 | 60' - 120 |
| Buff Calf | 0.3 % - 0.6 % 8.5 | 60' |