INTRODUCTION
UNIQUE CHD is a modified vegetable chestnut extract powder agent. It can be soluble in cold water. It has excellent tanning properties and medium astringency.
PROPERTIES
-Pale yellow colour.
- Excellent lightfastness and tear resistance compare with catechinic tanning agent.
- Softness touch.
- Gives firm and smooth leather grain.
USAGE
UNIQUE CHD is recommended to used in tanning formulation, combined formulation and retanning formulation at stadndard dosage. It can be used alone or mixed using with other vegetable extract or synthetic tanning agents.
TYPICAL ANALYSIS（SHAKE METHOD）
Physical aspect: Pale yellow powder
Tannin Agents %: 70± 1.5
None Tannin Agents%: 21±1
Ratio of Tannin and None Tannin Agents: 3.33
Ph: 4.3±0.2
Water Max %: 6.5±0.5
Insolubles %: 1±0.2.%
Lovibond Colour (obs): ±0.2
Red: 2.9
Yellow: 7.3
