Inorganic anti-bacterial agent NOVARON (for resin)
NOVARON contributes to cleaner, more comfortable living
The NOVARON Series (for resin) features a glass-based antimicrobial agent that uses zinc as its active ingredient. Thanks to its excellent discoloration resistance and high suitability for transparent resins, it can be used in a wide range of products. It has high level of safety.
- Product Name
-
NOVARON
Features
- High heat resistance and can be compounded into resin.
- Broad range of types to select best one depending on the situation.
- Resistant to fading.
- Some grades are approved by the Society of International Sustaining Growth for Antimicrobial Articles (SIAA) as an antimicrobial agent.
Usage
| Daily sundries | Cutting boards, triangular strainers, cups, food containers, sponge, hangers, remote control covers, etc. |
|---|---|
| Interiors and building materials | Wallpaper, flooring, sinks, kitchen counters, furniture, sealants, towels, etc. |
| Home electronics | Refrigerators, washing machines, televisions, dishwashers, humidifiers, Smartphone, game consoles, etc. |
| Others | Sporting goods, dolls, clay, puzzles, hand dryers, escalator belts, etc. |
Specifications
Grades and Characteristics
| Grades | Features and Applications | Average particle diameter (μm) | Specific gravity | Refractive index |
|---|---|---|---|---|
| VZ100 | Zinc glass general purpose | 5 | 3.6 | - |
| AGZ330 | Silver-based general purpose | 1 | 4.2 | - |
| VZN300 | For ABS resin | 2 | 4.3 | - |
| VZ600 | For transparent ABS resin | 9 | 3.1 | 1.54 |
| VZ900 | Transparent GPPS, for PC | 9 | 3.4 | 1. |
Mechanism of action
The metal ions act on intracellular enzymes and inhibit their metabolic functions, thereby inhibiting the growth of bacteria.
Anti-bacterial effect
The minimum concentration of antimicrobial agent required to prevent the division and growth of bacteria (unit: μg/ml) is called the minimum inhibitory concentration (MIC), and a smaller value indicates a higher antimicrobial effect. The table below shows the results of MIC measurement for various microorganisms using the agar medium dilution method.
| Bacterial species | Features and Applications | VZ100 MIC |
|---|---|---|
| Escherichia coli | Food, Drinking Water Contamination Indicator Bacteria | 800 |
| Staphylococcus aureus | Festering, Septicemia, Foodborne Pathogenic Bacteria | 200 |
Safety of NOVARON
Various safety tests have confirmed that the product is safe.
Safety test results for standard grade VZ100
| Safety items | Test conditions | Result |
|---|---|---|
| Acute oral toxicity | OECD423 | >5,000mg/kg |
| Mutagenicity | OECD471 | Negative |
| Primary skin irritation | OECD404 | No irritation observed. |
| Skin sensitization | OECD406 | Negative |
Processing example
Example of NOVARON added to transparent ABS resin
Application in transparentABS resin
Anti-bacterial effect*3 and transparency (transmittance rate*4) of transparentABS resin (0.5% anti-bacterial agent) was assessed at initial stage, after water resistance test*1 and after light resistance test*2.
| E. coli | Staphylococcus aureus | Transmittance rate | |||||
|---|---|---|---|---|---|---|---|
| Initial stage | Post-water resistance test | Post-light resistance test | Initial stage | Post-water resistance test | Post-light resistance test | ||
| Initial microbial count | 2.9×105 | 3.7×105 | (%) | ||||
| Blank | 1.4×107 | 1.1×107 | 1.4×107 | 2.3×105 | 2.0×105 | 1.6×105 | 90 |
| VZ600 | 7.4×102 | 2.2×102 | 3.5×103 | 1.2×102 | 5.3×102 | 3.1×102 | 89 |
| Silver-supportedzeolite | 4.8×103 | 5.1×106 | 9.2×103 | 4.9×102 | 1.1×105 | 2.4×103 | 35 |
*1 50±5℃, 16 hours (SIAA Waterproofing Test Category 2 of Antibacterial Power Sustainability Test Method for Antibacterial Products)
*2 Under sunshine carbon arc lamp for 8 hours
*3 Based on JIS Z 2801
*4 The larger value means higher transparency
Related Sites
Inquiries
- Department in charge
- Inorganic Functional Materials Department
- Phone number
- +81-3-3597-7265
*9:00 am - 5:00 pm (except weekends and holidays)
