A recycled plastic material is made from laser-engraved thermoplastic,
metal-containing thermoplastic, thermoplastic used in an inkjet
apparatus, or thermoplastic to which an ink or its composition have
stuck. This recycled plastic material is manufactured by pulverizing any
of these thermoplastics, cleaning the pulverized thermoplastic, removing
a cleaning solution from the cleaned thermoplastic to dry it, and
removing the dried thermoplastic solid matter other than the
thermoplastic.