NOVARON Inorganic Antibacterial Agent
NOVARON is a broad-spectrum antibacterial agent in which silver particles are supported on an inorganic ion exchanger. Originally developed by Toagosei Co., Ltd. of Japan, it is an advanced functional material. NOVARON is a fine powder with a uniform particle size, extremely low moisture absorption, and excellent heat resistance. It can be readily and uniformly incorporated into fibers, films, and molded plastic-resin products, and it disperses exceptionally well in coatings. Its physical and chemical properties are highly stable, providing excellent resistance to staining and discoloration during both processing and use. NOVARON also offers a high level of safety and has received clearance from the U.S. Food and Drug Administration (FDA).
For Plastics Processing
For Fibers and Films
Features
Key Advantages
• High heat resistance and easy processing: withstands temperatures above 800°C and can be blended directly into resins
• Comprehensive grade range for selecting the optimum grade for each application
• Excellent resistance to discoloration
• Grades with an average particle size of 1 μm and a very narrow particle-size distribution, suitable for textiles, films, and coatings
• Extremely low moisture content, minimizing bubble formation during heat processing
• Long-lasting antibacterial and antifungal performance
Applications
Antibacterial Mechanism
Silver ions present on the surface of the antibacterial agent, or released from it, bind to bacterial enzymes and disrupt bacterial metabolic function.
Safety
| Safety Item | Test Conditions | Result |
|---|---|---|
| Acute Oral Toxicity | OECD 423 | >5,000 mg/kg |
| Mutagenicity | OECD 471 | Negative |
| Primary Skin Irritation | OECD 404 | No irritation observed |
| Skin Sensitization | OECD 406 | Negative |
NOVARON AG Series Grades
| AG Series | |||
|---|---|---|---|
| Grade | Features | Average Particle Size (μm) | Specific Gravity |
| AG100 | Low silver content; minimal effect on color | 1.0 | 3.0 |
| AG300 | Standard grade | 1.0 | 3.0 |
| AG1100 | High silver content and high antibacterial activity | 1.0 | 3.0 |
| AGZ010 | For incorporation into resins; minimal effect on color | 1.3 | 5.1 |
| AGZ330 | General-purpose grade for incorporation into resins | 1.3 | 4.2 |
| AGT330 | Fiber-spinning grade | 0.8 | 4.4 |
| VFA701 | Fine particles, excellent spinnability, and high antibacterial activity | 1.2 | 3.4 |
NOVARON VZ Series Grades
The NOVARON VZ series consists of inorganic antibacterial agents whose primary active component is zinc. Compared with silver-based inorganic antibacterial agents, the VZ series offers outstanding resistance to discoloration and causes virtually no color change during processing or use.
| VZ Series | ||||
|---|---|---|---|---|
| Grade | Features | Average Particle Size (μm) | Specific Gravity | Refractive Index |
| VZ100 | General-purpose VZ series grade | 5.0 | 3.6 | — |
| VZF101 | Fine particles with excellent spinnability | 1.0 | 3.6 | — |
| VZF200 | Fine particles suitable for thin products | 3.0 | 3.6 | 1.65 |
| VZN300 | Suitable for ABS resin | 1.5 | 4.3 | — |
| VAG500 | Silver-zinc composite with high antibacterial activity | 8.0 | 3.3 | 1.65 |
| VZ600 | Suitable for transparent ABS resin while maintaining transparency | 9.0 | 3.1 | 1.54 |
| VZ900 | Suitable for GPPS and PC resins while maintaining transparency | 7.0 | 3.4 | 1.58 |
Application Examples
| Test Organism | Bacterial Count in Control Sample | Bacterial Count in Antibacterial Sample | Antibacterial Rate |
|---|---|---|---|
| Escherichia coli | 4.6 × 107 | <10 | >99.99% |
| Staphylococcus aureus | 2.9 × 106 | <10 | >99.99% |
PET Egg Mesh Bag
With 0.5% AGZ330
| Test Organism | Bacterial Count in Control Sample | Bacterial Count in Antibacterial Sample | Antibacterial Rate |
|---|---|---|---|
| Escherichia coli | 2.0 × 107 | <10 | >99.99% |
| Staphylococcus aureus | 4.7 × 105 | <10 | >99.99% |
PE Cutting Board
With 1% AGZ330