The core advantage lies in the special surface coating treatment, which ensures that the pigment will not migrate into food, with migration resistance reaching grade 4 or above, meeting the food contact safety requirements of FDA and GB 4806.7. Its heat resistance can reach 280℃, suitable for all kinds of injection molding, extrusion and other plastic processing technologies, and will not decompose and discolor during high-temperature processing. At the same time, it is micronized with good dispersibility, which can be evenly distributed in the plastic matrix to ensure uniform color and no spots or color deviation in plastic products.
Specific parameters include average particle size of 35μm, standard dark blue color tone, coloring strength of 96%, migration resistance of 4.5 grades (ISO 105-E04), heat resistance temperature of 285℃, volatile matter content of 0.32%, pH value of 7.6, 325 mesh sieve residue ≤0.02%, packaged in 5kg boxes, heavy metal content meets FDA 21 CFR Part 178.3297 and GB 4806.7-2016 standards, storage stability of ≥18 months, no phthalates, bisphenol A and other harmful substances.
It is mainly applicable to the coloring of food-contact plastic tableware, food packaging containers, children's plastic toys, medical plastic products and other scenarios, compatible with all kinds of thermoplastic plastics such as PE, PP, PVC and ABS. It can be directly mixed with plastic resin without additional dispersing equipment, providing safe and stable blue coloring effect for food-contact plastic products.
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