Patent ID: 7452918

Claim:
A method of manufacturing a recycled plastic material comprising the steps of: pulverizing a part molded from a thermoplastic material to which ink and components of the ink have stuck; cleaning the pulverized material; dehydrating the pulverized material cleaned in said cleaning step; removing solid matter other than the thermoplastic material from the pulverized material dehydrated in said dehydrating step; and forming a recycled raw material by melting and kneading the pulverized material from which the solid matter other than the thermoplastic material has been removed in said removing step, wherein the pulverized material is cleaned so that an amount of ink and components of the ink sticking to the pulverized material fall within a range of a predetermined value in said cleaning step and the pulverized material is dehydrated so that an amount of a moisture content falls within a range of a predetermined value in said dehydrating step, thereby an impact strength and a melt flow rate (MFR) of the recycled raw material are adjusted within the ranges of predetermined values in said forming step.