| 摘要 |
PURPOSE: A composite material composition is provided to improve printability or coatability, quality, and durability of a plastic product. CONSTITUTION: A composite material composition is manufactured by: a step of mixing 50-80 wt% of a calcium carbonate, 14.5-43.5 wt% of polypropylene, 3.5-4.5 wt% of wax, and 2 wt% of zinc, and melting the mixture; a step of completely melting the mixture by mixing the mixture; a step of extruding and cutting the mixture to a specific size to obtain pellets; and a step of drying the pellets. [Reference numerals] (AA) Preparing raw materials; (BB) Measuring; (CC) Mixing the raw materials(temporarily melting); (DD) Mixing the raw materials(temporarily melting); (EE) Extruding; (FF) Cutting; (GG) Drying; (HH) Sorting; (II) Packaging
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