This plastic color concentrate is made by mixing and granulation of coffee grounds and polypropylene (PP) in a ratio of 3:7, then used to make car perfume cases through injection molding. Due to the addition of 30%, coffee grounds can reduce the use of petrochemical plastic on the one hand, and on the other hand, it can be used as a low-polluting natural color concentrate.more
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This plastic color concentrate is made by mixing and granulation of coffee grounds and polypropylene (PP) in a ratio of 3:7, then used to make car perfume cases through injection molding. Due to the addition of 30%, coffee grounds can reduce the use of petrochemical plastic on the one hand, and on the other hand, it can be used as a low-polluting natural color concentrate.
