The present invention discloses a production process of melamine resin foam sponge, including the following steps: mix the melamine and paraformaldehyde powder. The mixture is fed into the first screw machine by the material pump, and lye is added to the feed port of the first screw machine; the auxiliary material solution is added at the feed end, the middle position or the end of the first screw machine; the outlet of the first screw machine is extruded The transparent resin from the second screw machine enters the second screw machine.
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