Abstract: Provided is an active-energy-ray-curable liquid composition containing a monomer (A) having a hydrogen-bonding capacity and a solvent (B) having a hydrogen-bonding capacity, wherein the active-energy-ray-curable liquid composition satisfies conditions below, <Conditions> a cured product obtained by irradiating the active-energy-ray-curable liquid composition with 500 mJ/cm2 of an active energy ray is a solid having a compressive stress of 2.0 kPa or greater when compressed by 1% at 25 degrees C., and the cured product has a water decaying property.

Abstract: A disclosed three-dimensional modeling composition set includes a first composition, and a second composition, where at least one of a cured product of the first composition and a cured product of the second composition has water disintegratability, and when ST1 represents surface tension of the first composition and ST2 represents surface tension of the second composition, the following formula (1) is satisfied: IST1?ST2I?2 (1) where in the formula (1), the unit of the surface tension is mN/m. A method and an apparatus using the three-dimensional modeling composition set are also disclosed.

Abstract: A three-dimensional fabricating apparatus includes a forward layer fabricator, a backward layer fabricator, and a controller. The forward layer fabricator is configured to discharge a fabrication material in a forward path to form a forward fabrication layer. The backward layer fabricator is configured to discharge a fabrication material in a backward path to form a backward fabrication layer. The controller is configured to control the forward layer fabricator and the backward layer fabricator so that a total discharge amount of the fabrication material in the backward path is larger than a total discharge amount of the fabrication material in the forward path.

Abstract: Provided is an active-energy-ray-curable liquid composition containing a monomer (A) having a hydrogen-bonding capacity and a solvent (B) having a hydrogen-bonding capacity, wherein the active-energy-ray-curable liquid composition satisfies conditions below, <Conditions> a cured product obtained by irradiating the active-energy-ray-curable liquid composition with 500 mJ/cm2 of an active energy ray is a solid having a compressive stress of 2.0 kPa or greater when compressed by 1% at 25 degrees C., and the cured product has a water decaying property.

Abstract: A method of manufacturing a solid freeform fabrication includes forming a liquid film constituting a model part and a detail part with a model part forming material and a detail part forming material, respectively, curing the liquid film, repeating the forming and the curing, wherein the model part includes one or more surfaces without a support and the detail part is disposed adjacent to at least one of the one or more surfaces.

Abstract: A method of fabricating a solid freeform fabrication object, includes discharging multiple liquid droplets of modeling material and multiple liquid droplets of supporting material to a stage by a discharging device, merging the multiple liquid droplets of the modeling material into a liquid droplet of the modeling material in the air and the multiple liquid droplets of the supporting material into a liquid droplet of the supporting material in the air, curing the liquid droplet of the modeling material and the liquid droplet of the supporting material on the stage to form a layered fabrication object, and repeating the discharging and the curing to laminate the layered fabrication object to manufacture the solid freeform fabrication object, wherein the discharging device stands still during at least the discharging to a boundary area of the modeling material and the supporting material on the stage.

Abstract: Certain embodiments provide a marking apparatus, which marks on media that is reusable by recording and erasing decolorable material, comprising a scanner configured to read media to which a first mark representing the reuse times of media is attached; a determination section configured to determine whether or not the media is reusable according to a reading result of the first mark or a use state of the media; and a recording section configured to print a second mark different from the first mark on the media according to a determination result representing that the media cannot be reused.

Abstract: A method of manufacturing a solid freeform fabrication object includes forming a layer by solidifying a curable liquid composition by a solidifying device to form a solidified layer, repeating the forming to laminate the solidified layer to form a model portion and a support to support the model portion, and removing the support, wherein the support includes a water decaying area and the area other than the water decaying area, the water decaying area forming a continuous area including the surface of the support in contact with the model portion and at least a part of the surface of the support not in contact with the model portion.

Abstract: Certain embodiments provide a marking apparatus, which marks on media that is reusable by recording and erasing decolorable material, comprising a scanner configured to read media to which a first mark representing the reuse times of media is attached; a determination section configured to determine whether or not the media is reusable according to a reading result of the first mark or a use state of the media; and a recording section configured to print a second mark different from the first mark on the media according to a determination result representing that the media cannot be reused.

Abstract: An aliphatic polyester having a number-average molecular weight of from 500,000 to 2,000,000 includes an ester bonding site and an amide bonding site. The content of the amide bonding site is from 1×10?3% to 1×10?1% by mol based on total weight of the ester bonding site and the amide bonding site.

Abstract: Electrically semi-conductive carbon nano tube is used as a coloring agent.

Abstract: A wax dispersion in a developing agent using a polyester resin is improved by adding an ester wax in the polyester polymerizing step or both in the polymerizing and kneading steps, or by adding a compatibilizing agent selected from the group consisting of alkylene block copolymer or graft copolymer to a polyester-styrene hybrid resin used in place of the polyester resin.