Tara powder UNITAN TM is a natural source of tannins from the milling of the tara`spod (Caesalpinea Spinoza).
UNITAN TM contains hydrolysable tannins (derivated from pyrogallol), whose main components are particles of glucose and acids, as the gallic acid, m-gallic and ellagic.
Pyrogallol tannins can be hydrolyzed with acids and enzymes.
It can be used for all vegetable or vegetable / mixed skin types, for upholstery, leather,clothing and footwear.
It is also used in textile industry, making stained with iron salts, mordant dyeing and printing fabrics.
Tara produces a clear, flexible, soft and fitness for dyeing leather.
Suitable for vegetal type leather requiring good light fastness.
In conjunction with suitable oils, good fogging values leather are obtained.
PHYSICAL AND CHEMICAL PROPERTIES
Tannins: 54% +/- 2%
METHODS: CC-1-004
Determination particle size; CC-1-006
Determination pH; AOAC 955.35:2005; 18th Ed.,
Tannin in cloves and Allspice.
Titrimetric Method; CC-1-002 Moisture Analysis.
| Minimum Mesh | 92% passing (on 100 mesh) |
| Physical Type | Powder |
| Appearance | Fine powder highly soluble in light beige color. |
| Odor | Pleasant characteristic odor |
| Boiling Point | 170 °C |
| PH | 3,5 ± 0,4 in solution |
| Moisture | 8,5 ± 0.7 |
Packing: in bags of 25 kg., palletized per 1000 kg. Containers per 20 MT
Warning: UNITAN TM is a product-sensitive iron salts, like all plant extracts. Therefore in all operations tanning and retanning contact with ferrous materials should be avoid. To improve the performance of the product is recommended to add small amounts of UNICLAR to the liquors to prevent stains, as well as the final bath wash removing hides and stacking with the wash water.
These data are indicative and our approach right. Is excluded by any misuse of the product.
