Optical Brightener Masterbatch, also known as fluorescent whitening agent (FWA) masterbatch, is a specialized additive used in the plastics industry to improve the brightness and whiteness of plastic materials. It is commonly used in applications where visual appeal and color vibrancy are important, such as in packaging, textiles, and consumer goods.
The optical brightener masterbatch contains fluorescent compounds that absorb ultraviolet light and emit visible light in the blue region of the spectrum. This emission of blue light helps offset any yellowish or dull appearance in the plastic, resulting in a visually brighter and whiter appearance.
Here are some technical details about optical brightener masterbatch:
It's important to note that the effectiveness of clarifier additives masterbatch can vary depending on the specific polymer type, processing conditions, and desired level of clarity. Therefore, it is recommended to conduct testing and optimization to determine the appropriate concentration and processing parameters for achieving the desired clarity in a particular application.
| Appearance | Granule/Pellets |
|---|---|
| Color | Greenish |
| Carrier Resin | PE |
| Active Ingredients | ≈ 1 % Optical Brightener Complex |
| Thermal Stabilizer | Yes |
| Melf Flow Index | 16 |
| Specific Density | 0.93 gr/cm3 |
| Appearance | Granule/Pellets |
|---|---|
| Color | Greenish |
| Carrier Resin | PP |
| Active Ingredients | ≈ 1 % Optical Brightener Complex |
| Thermal Stabilizer | Yes |
| Melf Flow Index | 7.5 gr/10min. (@ 190 °C ,2.16 kg) |
| Specific Density | 0.93 gr/cm3 |
Optical brightener masterbatch consists of fluorescent whitening agents dispersed in a carrier resin, which is compatible with the plastic material being processed. The carrier resin acts as a vehicle to evenly distribute the optical brightening agents throughout the plastic.
When the plastic product containing optical brightener masterbatch is exposed to ultraviolet light, the fluorescent compounds in the masterbatch absorb the UV light energy. They then re-emit the absorbed energy as visible blue light, effectively enhancing the perceived whiteness and brightness of the plastic.
The concentration of optical brightener masterbatch required depends on various factors, including the specific plastic material, desired level of brightness, and the application. It is important to carefully determine the optimal concentration through testing to achieve the desired visual effect without compromising other properties of the plastic.
Optical brightener masterbatch should be compatible with the base plastic material to ensure proper dispersion and uniformity. Compatibility testing should be performed to assess the performance and stability of the masterbatch in the specific plastic matrix.
Optical brightener masterbatch is typically incorporated into the plastic resin during the compounding or extrusion process. The masterbatch is uniformly mixed with the base resin to ensure even distribution of the fluorescent compounds throughout the final product.
It is essential to consider factors such as light stability, migration resistance, and the intended application when selecting an optical brightener masterbatch. Different fluorescent compounds have varying performance characteristics, and their suitability should be evaluated based on the specific requirements of the application.
It is essential to consider factors such as light stability, migration resistance, and the intended application when selecting an optical brightener masterbatch. Different fluorescent compounds have varying performance characteristics, and their suitability should be evaluated based on the specific requirements of the application.
The information provided herein is based on our current knowledge and is intended to offer general guidance on products and their applications. It should not be construed as a guarantee of specific product properties or their suitability for a particular purpose. Due to the wide variability of conditions in product usage, which are beyond MKEY's control, users must independently assess whether MKEY products are suitable for their intended applications prior to use.
The quality of our products is warranted in accordance with our General Terms and Conditions of Sale, which are currently in effect or may be updated in the future. Technical information, test data, and advice provided by MKEY personnel are based on our best knowledge and reliable tests. However, it is assumed that recipients of such information possess the necessary expertise and technical skills to analyze test methods and conditions, as well as handle and utilize raw polymers and related compounding ingredients effectively.
