Ejection device, molding device, and ejection method

An ejection method for a material using an ejection device,

• the ejection device comprising:
• a filling portion comprising a first space and a second space, wherein the first space and the second space are filled with the material having a dispersion medium and a particulate dispersoid dispersed in the dispersion medium;
• an ejection portion comprising an ejection path, wherein the ejection path comprises a first end and a second end, the first end communicates with the first space or the second space, and the second end is open to outside;
• and
• a switching portion comprising at least one communication path through which the first end of the ejection path communicates with the first space or the second space, wherein the switching portion switches between a first state where, through the at least one communication path, the first space communicates with the ejection path, and a second state where, through the at least one communication path, the second space communicates with the ejection path,
• the ejection method comprising:
• a first extrusion step of extruding the material filled in the first space out of the first space;
• a second extrusion step of extruding the material filled in the second space out of the second space;
• and
• a switching step of switching the switching portion between the first state and the second state.