Food Grade Polyvinyl Acetate Resins
ANHUI LIWEI CHEMICAL CO.,LIMITED
[Introduction]
Polyvinyl acetate (PVAc) is a synthetic resin polymerized from vinyl acetate, possessing excellent potential as a food coating. Even when the coated surface is immersed in water, PVAc coatings retain high gloss. The main advantages of PVAc as a food coating lie in its unique combination of properties and low cost; it is currently used in pharmaceutical coatings and as an ingredient in chewing gum.
1. Technical Data
| ITEM | PVAc-M | PVAc-L | PVAc-H |
|---|---|---|---|
| Appearance | Granule or block with tenacious, no impurity | Granule or block with tenacious, no impurity | Granule or block with tenacious, no impurity |
| Color | Colorless or slightly yellow, transparence | Colorless or slightly yellow, transparence | Colorless or slightly yellow, transparence |
| Volatile, 1.5g | 1.0 max | 1.0 max | 1.0 max |
| Heavy metal, as Pb | 10.0 max | 10.0 max | 10.0 max |
| Arsenic | 3.0 max | 3.0 max | 3.0 max |
| Pb | 1.0 max | 1.0 max | 1.0 max |
| Viscosity, 10% Ethyl Acetate | 2.5 to 3.0 | 1.0 to 1.7 | 2.8 to 3.5 |
| Softening Point | 85 to 95 | 58 to 100 | 90 to 110 |
| Free Acid, as CH3COOH | 0.05 max | 0.05 max | 0.05 max |
2. Applications
- As the core raw material for gummies and chewing gum bases;
- Used in sugar refining and chewing gum production, providing foaming and chewing functions;
- PVAC with a degree of polymerization below 1000 is the most widely used resin material.
3. Properties
- Combines the functions of elastomer, chewing agent, film-forming agent, and flavor enhancer;
- Excellent adhesive texture, strong foaming power, thick foam film, and non-sticky consistency;
- Good weather resistance and long shelf life after sugar refining;
- Imparts viscoelasticity, plasticity, chewiness, film-forming properties, and flavor retention to chewing gum;
- Hydrophobic yet absorbent, forming a flavor-retaining gum base;
- The core material determining the key properties of chewing gum bases.
4. Packaging
Carton, 25 kg net weight per carton.
5. Storage
Avoid exposure to light;
Store separately from incompatible substances;
Store and handle in accordance with all applicable regulations and standards;
Store in a cool, dry place;
Store in a sealed container.
