Gallnut Extract, Packaging Type : Bottle, Jar

Introduction:
Tannin occurs naturally in tea, coffee, oak, sumac bark and myrobalan. It is a basic ingredient in the chemical staining of wood. The tannic acid or tannin is already present in woods like oak, walnut, and mahogany. Tannic acid can be applied to woods low in tannin so chemical stains that require tannin content will react.
Functions:
1. Hemostatic, treating sore throat, tonsillitis, and hemorrhoids and skin blister disease, etc;
2. Detoxification;
3. Transparent agent;
4. Coagulating agent.
5. Pre-treatment of vegetable fibres : The tannic acid is perfect for the pre-treatment of cellulosic vegetable fibers (named engallage in this case) to enhance the fixation of the mordant during the mordanting step