Optical brightener masterbatches are plastic additives that are used to improve the brightness and whiteness of plastic products. They are often used in products that require a high level of visual appeal, such as packaging, toys, and household goods.
Optical brightener masterbatches contain optical brightening agents (OBAs), which are chemicals that absorb UV light and re-emit it as visible light. This helps to improve the perceived brightness and whiteness of the plastic, making it appear more attractive and appealing.
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