Optical Brightener Color Masterbatch (OB-1/KSN/127)
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Runpacet fluorescent brighteners work by absorbing ultraviolet light and emitting blue-violet fluorescence, thereby enhancing the visual whiteness of materials. Specifically, these brighteners absorb UV rays from light and convert their energy into lower-energy blue-violet light emission. This increases the reflection of blue-violet light from treated objects, counteracting the yellowish appearance caused by excessive yellow light reflection, making materials appear visually whiter.
In plastic recycling granulation, fluorescent brighteners can effectively improve the appearance quality of recycled plastics. Due to repeated use, recycled plastics often develop yellowing, reduced transparency, or color impurities. By adding appropriate amounts of fluorescent brighteners, the whiteness and transparency of recycled materials can be significantly enhanced, making their appearance nearly as good as virgin materials, thus improving the product's market competitiveness.
