Abstract: There is provided a method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method including: forming the layer using a three-dimension formation composition containing particles, a binding resin, and a solvent; applying a binding solution containing a binder to the layer; and removing the particles, which are not bound by the binder, using a removing solution after repeating the forming of the layer and the applying of the binding solution, in which, in the removing of the unbound particles, the binding resin has a water-soluble functional group whose pKa in water is less than the pH of the removing solution.

Abstract: The method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, includes the steps of: forming the layer using a three-dimension formation composition containing a particle and a light stabilizer A; and discharging a binding solution containing a binder and a light stabilizer B to the layer, in which, when the content ratio of the light stabilizer A contained in the three-dimension formation composition is represented by A (mass %) and the content ratio of the light stabilizer B contained in the binding solution is represented by B, a relationship of 2?A/B?4 is satisfied.

Abstract: Provided is a method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method including: forming the layer using a three-dimensional formation composition containing a surface-hydrophilic particle and a binding resin having a hydroxyl group; and discharging a curable ink containing a ultraviolet curable resin having an isocyanate group to the layer, in which an urethane group is formed by the hydroxyl group of the binding resin and the isocyanate group of the ultraviolet curable resin.

Abstract: Provided is a method of manufacturing a three-dimensional structure, in which the three-dimensional structure is manufactured by laminating a layer, the method including: forming the layer using a three-dimensional formation composition containing a particle whose surface is hydrophobically treated and has at least one reactive group selected from the group consisting of an acrylic group, a methacrylic group, a vinyl group, a styryl group, and an isocyanate group; and discharging a curable ink containing monofunctional and/or difunctional (meth)acrylate onto the layer.

Abstract: A method of manufacturing a three-dimensional structure includes forming a layer using a composition including particles and an aqueous solvent, heating the layer, and repeating a series of processes including the forming of the layer and the heating of the layer, in which in the heating of the layer, a first heating treatment and a second heating treatment in which the layer is heated to a temperature higher than in the first heating treatment are performed.

Abstract: Provided is a manufacturing method of a three-dimensional structure which manufactures a three-dimensional structure by laminating layers, the method including: forming the layers using a three-dimensional formation composition containing three-dimensional formation powders, a solvent, and a binder; discharging a binding solution containing a binding agent to the layers; and performing a permeation prevention step of preventing the solvent from permeating the layers, at least on a part of the layers to which the binding solution is discharged. It is preferable that the permeation prevention process is selectively performed with respect to an area of the layers to which the binding solution is not discharged.

Abstract: Provided is a three-dimensional structure manufacturing apparatus which manufactures a three-dimensional structure by laminating layers, the apparatus including: a formation unit in which the three-dimensional structure is formed; a three-dimensional formation composition A preparation unit which mixes three-dimensional formation powders with a solvent and prepares a three-dimensional formation composition A; a supply unit which supplies the three-dimensional formation composition A to the formation unit; a layer formation unit which forms the layers in the formation unit using the three-dimensional formation composition A; a discharge unit which discharges a binding solution for binding the three-dimensional formation powders to the layers; and a curing unit which binds the three-dimensional formation powders by curing the discharged binding solution.

Abstract: Provided is a manufacturing method of a three-dimensional structure which manufactures a three-dimensional structure by laminating layers, the method including: forming the layers using a composition A containing three-dimensional formation powders and a solvent; discharging a binding solution for binding the three-dimensional formation powders to the layers; binding the three-dimensional formation powders by curing the discharged binding solution; removing the non-bound three-dimensional formation powders using the solvent; and additionally adding the three-dimensional formation powders to a mixed solution generated by the removing and containing the non-bound three-dimensional formation powders and the solvent, and preparing a composition B containing the three-dimensional formation powders and the solvent.

Abstract: A sintering and molding method includes forming a fluid mold material by heating a sinter mold material, which includes inorganic particles, a binder material and a binder material which bond together the inorganic particles, to a temperature equal to or more than the melting points of the binder materials, forming a mold layer by spreading the fluid mold material, layering a mold layer, applying UV ink to a desired region on the mold layer, forming a mold cross sectional pattern by curing the UV ink which is applied to a desired region on the mold layer, finishing a mold object by removing a region, where the UV ink is not applied, in the mold layer, carrying out heat treatment on the mold object at a temperature which is less than the initial temperature of thermal decomposition of the binder material, and carrying out sintering treatment on the mold object.

Abstract: The invention provides metal powder constituted from metal particles. Each of the metal particles comprises a base particle having a surface and a metal material constituting at least the surface of the base particle. The base particle is subjected to a surface treatment with a fluorine type phosphoric acid ester. Further, the invention also provides an ultraviolet ray curable ink jet composition to be ejected by using an ink jet method. The ultraviolet ray curable ink jet composition comprises a polymerizable compound and metal powder constituted from metal particles. The metal particles of the metal powder are subjected to a surface treatment with a fluorine type phosphoric acid ester.

Abstract: A molding apparatus includes a heating section, a spreading section, a molding section, a drawing section and a curing section. The heating section which heats a mold material including particles and a binder agent which bonds together the particles, to a temperature equal to or higher than the melting point of the binder agent and forms a fluid mold material. The spreading section forms a mold layer by spreading the fluid mold material. The molding section layers the mold layers. The drawing section applies UV ink to a desired region of the mold layer. The curing section cures the UV ink applied to the desired region of the mold layer.

Abstract: An ultraviolet ray curable ink composition adapted to be ejected by using an ink jet method is provided. The ultraviolet ray curable ink composition includes a polymerizable compound and metal powder. The metal powder is constituted from metal particles subjected to a surface treatment with a fluorine type silane compound and/or a fluorine type phosphoric acid ester as a surface treatment agent. A polymerizable compound includes a monomer having an alicyclic structure. This makes it possible to provide the ultraviolet ray curable ink composition which has excellent storage stability, can provide excellent dispersion stability of the metal particles of the metal powder. A printed object is also provided. Such a printed object is produced by using the ultraviolet ray curable ink composition.

Abstract: An ultraviolet ray curable ink composition adapted to be ejected by using an ink jet method is provided. The ultraviolet ray curable ink composition includes a polymerizable compound, metal powder, and a liquid component having an alicyclic structure including a hetero atom. The metal powder is constituted from metal particles subjected to a surface treatment with a fluorine type silane compound and/or a fluorine type phosphoric acid ester as a surface treatment agent. An amount of the liquid component contained in the ultraviolet ray curable ink composition is in the range of 0.05 mass % or more but 7.0 mass % or less. A printed object is also provided. Such a printed object is produced by using the ultraviolet ray curable ink composition.

Abstract: An ultraviolet ray curable ink composition adapted to be ejected by using an ink jet method is provided. The ultraviolet ray curable ink composition includes a polymerizable compound, metal powder, and a polyether based solvent. The metal powder is constituted from metal particles subjected to a surface treatment with a fluorine type silane compound and/or a fluorine type phosphoric acid ester as a surface treatment agent. An amount of the polyether based solvent contained in the ultraviolet ray curable ink composition is in the range of 0.05 mass % or more but 7.0 mass % or less. A printed object is also provided. Such a printed object is produced by using the ultraviolet ray curable ink composition.

Abstract: An ultraviolet ray curable ink composition is provided. The ultraviolet ray curable ink composition contains a polymerizable compound; and an aluminum pigment subjected to a surface treatment with a phosphate compound. The aluminum pigment subjected to the surface treatment with the phosphate compound is subjected to an X-ray photoelectron spectrometer to obtain an X-ray photoelectron spectrum having a wave form. Thereafter, when a waveform separation was performed by using a Voigt function in such an X-ray photoelectron spectrum, the X-ray photoelectron spectrum has peaks in the rage of 190 eV or more but 192 eV or less. A printed object is also provided. The printed object is produced by applying the ultraviolet ray curable ink composition onto a recording medium, and then irradiating the ultraviolet ray curable ink composition with an ultraviolet ray.

Abstract: The invention provides metal powder constituted from metal particles. Each of the metal particles comprises a base particle having a surface and a metal material constituting at least the surface of the base particle. The base particle is subjected to a surface treatment with a fluorine type phosphoric acid ester. Further, the invention also provides an ultraviolet ray curable ink jet composition to be ejected by using an ink jet method. The ultraviolet ray curable ink jet composition comprises a polymerizable compound and metal powder constituted from metal particles. The metal particles of the metal powder are subjected to a surface treatment with a fluorine type phosphoric acid ester.