Gallnut (oak gall, quercus infectoria) - is used to mordant cellulose fibres and fabrics before an alum mordant is used. Alum does not combine as readily with cellulose fibers as it does with protein fibers. Fortunately tannins have a great affinity for cellulose fibre and once mordanted with tannin, alum combines well with the tannin-fiber complex. Gallnuts (nutgalls) from the oak tree are one the earliest and richest source for natural tannin. They are produced by insects that deposit their eggs in small punctures they make on young branches. The tree excretes a tannin-rich substance that hardens and forms into a gallnut. These are collected and ground for use as a tannin mordant. Gallnuts are used in the leather tanning industry, and for in some medicines.
1. Gallnut Extract Tannic Acid With the function of antioxidant and antimicrobial;
2.Gallnuts Extract Tannic Acid has the effect on improving the body disease-resistantability, liver and gastrointestinal system function;
3. Gallnut Extract Tannic Acid With the function of treating chronic diarrhea and dysentery;
4. Gallnut Extract Tannic Acid With the function of dispelling heat, eliminating irritability, diuretic, cooling blood and detoxification;
5. Gallnut Extract Tannic Acid With the function of enhancing immunity.
1.Health food
2.Food additive
3.Natural Dyes
FAQ
1. Can I get samples?
Surely you can.
Existing Sample is free (but we will charge for custom designs). If you have a discount of your FedEx, UPS, TNT or DHL account, we may ship samples with your account. If not, we may charge the shipping freight for samples and ship them by our discount account. It always takes about 2-4 days for shipping.
2. How long is the Sample lead time?
2-3 days for existing random samples and 5-7 days for samples with customized design after all approval.
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Round, square, oval, triangle, star shape, heart shape or as per your requirements.
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Yes, we have a lot in stock, when you order the products in stock, we will pack fast and deliver to you, it will save you a lot of time. Also, we hold promtion regularly, pls pay attention to it.
