Our common aluminum-plastic sheet can separate aluminum and plastic, and the plastic can be processed into black particles after recycling. The specific operation is: Put the aluminum plastic plate into the pot, then add caustic soda, and burn the water to about sixty degrees, then separate the aluminum plastic plate and separate the aluminum plastic plate into aluminum and plastic plates. Such plastic can be recycled into black particles. At present, there are many manufacturers engaged in the use of black PE particles for aluminum plastic sheet.