Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A liquid treatment method for removing impurities from an impurity-containing liquid comprises a collection step of collecting a precipitated solid component from an impurity-containing liquid in a tank containing the liquid along with a liquid component of the liquid, a separation step of separating the solid component collected in the collection step from the liquid component collected in the collection step, a return step of returning to the tank the liquid component separated from the solid component in the separation step, and a purification step of obtaining a purified liquid from the impurity-containing liquid contained in the tank.

Abstract: When thermoplastic is recycled by a general recycling process alone, only a low-quality recycled plastic material having physical property values lower than a virgin material can be obtained. A recycled plastic material of this invention 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 from the dried thermoplastic solid matter other than the thermoplastic.

Abstract: In a precision reproducing mold for forming a substrate of a recording medium on which information signals are recored, ions are implanted into a surface bearing precise pattern, of the reproducing mold. A process for producing such mold comprises a step of implanting ions into a surface, bearing precise patterns, of the metal which is electrolytically deposited onto an original plate and then separated therefrom.