Method of producing a pulp product

The present disclosure provides a method of producing a 3D molded product from a pulp slurry. The method comprises applying a pulp slurry layer to a porous forming face of a first mold， in a first forming step， pressing the pulp slurry layer against the porous forming face of the first mold， while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold， transferring the pulp slurry layer to a porous forming face of a second mold， in a second， subsequent， forming step， pressing the pulp slurry layer against the porous forming face of the second mold， while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method， a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.

本公开提供了一种以纸浆浆料（pulp slurry）制备三维成型制品（3D molded product）的方法。该方法包括如下步骤：在第一成型工序中，将纸浆浆料层涂布于第一模具（first mold）的多孔成型面；随后在该工序内，对纸浆浆料层进行加热并通过第一模具的多孔成型面抽真空的同时，将纸浆浆料层压合于第一模具的多孔成型面。将纸浆浆料层转移至第二模具（second mold）的多孔成型面后，在后续的第二成型工序中，对纸浆浆料层进行加热并通过第二模具的多孔成型面抽真空的同时，将纸浆浆料层压合于第二模具的多孔成型面。本方法中，第一模具多孔成型面后侧的第一压力低于第二模具多孔成型面后侧的第二压力。