Production technology for plastic-wood plate with mixed color

The invention provides a production technology for a plastic-wood plate with mixed color, and relates to the technical field of plastic-wood material production. The production technology mainly comprises a pelleting process and an extrusion process. In the pelleting process, needed raw materials comprise 40-60% of bamboo/wood powder, 15-30% of PE, 4-10% of talcum powder, 10-15% of toner, 2-5% of a coupling agent and 3-5% of a maleic anhydride grafted material. The extrusion process comprises: mixing material particles obtained in the pelleting process with color masterbatch with stirring, then adding into an extruder for extruding to obtain plates, and controlling the pressure in a cylinder of the extruder to be 0.06 MPa by utilizing vacuum-pumping equipment connected with the cylinder. By utilizing the production technology for plastic-wood plate with mixed color, the raw-material formula is reasonable, the product performances are good, the plastic-wood plate with mixed color is produced and possesses patterns with different colors, and the variety of products is improved; and the extruder cylinder is connected with the vacuum-pumping equipment in the extrusion process, so that the interior of the cylinder is a low-pressure environment, moisture, flue gas and air in the cylinder are timely exhausted, and thus the product performances are improved.