Synthetic resin molded article using plastic waste

A method for manufacturing a synthetic resin molded product using plastic waste, the method comprising:

• mixing 30 to 80 wt % of plastic waste including a plurality of kinds of plastics each having a diameter or a side of 5 mm or less or a weight of 0.1 g or less and having different colors and melting points mixed therein, and 20 to 70 wt % of a second material having a diameter or a side of 5 mm or less, and not molten under a temperature condition of 200° C.;
• grinding a mixture thereof into a powder with a diameter or a side of 1 mm or less by a grinding device;
• supplying the resulting powder to a molding machine, and carrying out a molding step;
• and
• scraping a surface layer of the molded product, thereby exposing spots constituting a stipple pattern on a surface of the molded product, the spots being formed by a powder of plastic having a higher melting point than a molding temperature of plastics included in the plastic waste and a powder of the second material, that are different in color and/or glossiness from a base color of the molded product.