INTRODUCTION
ATD Quebracho extract is a semisoluble spraydried dedusted powder with an exceptionally pale colour. This extract obtained from selected woods has been chemically treated to reduce and transform the inherent insolubles in a natural Quebracho extract.
PROPERTIES
- Very light colour.
- Maximum filling properties.
- Excellent tanning properties.
- Rapid penetration.
- Non dusty.
- Good weight yield.
- Full compatibility with vegetable extracts and synthetic tannins.
-Soluble in cold water.
USAGE
Used in vegetable tanning and chrome retanning . Leathers treated with this product present firmness grain, silky touch and a pale surface colour. It supplies evenness abrasive resistance and embossing ability. It has very good result in filling when used after any Quebracho extract, especially, for the flank part of the leather.
TYPICAL ANALYSIS（SHAKE METHOD）
Physical aspect:Pale red powder
Tannin Agents %:71 ± 2
None Tannin Agents%:19±1
Ratio of Tannin and None Tannin Agents:3.70
Ph:4.3±0.2
Water Max %:8±0.5
Insolubles %:3±0.2%
Lovibond Colour (obs):±0.2
Red:1.3
Yellow:2.5
