Material set for forming three-dimensional object, three-dimensional object producing method, and three-dimensional object producing apparatus

1. A material set for forming a three-dimensional object, the material set comprising:

a first liquid material for forming a three-dimensional object; and

a second liquid material for forming a three-dimensional object,

wherein the first liquid material comprises a solvent, an organic compound A, and inorganic particles,

wherein the second liquid material comprises an organic compound B having reactivity with the organic compound A, and

wherein the organic compound B comprises at least one selected from the group consisting of Polyethyleneimine, polyallylamine, polyacrylamide, polyvinyl pyrrolidone, and polyurethane.

2. The material set for forming a three-dimensional object according to claim 1 , further comprising

a third liquid material for forming a three-dimensional object,

wherein the third liquid material dissolves the organic compound A.

3. The material set for forming a three-dimensional object according to claim 1 ,

wherein at least any one of the first liquid material for forming a three-dimensional object and the second liquid material for forming a three-dimensional object further comprises a dehydration-condensation agent.

4. The material set for forming a three-dimensional object according to claim 1 ,

wherein the organic compound A comprises an acidic functional group, and

wherein the organic compound B comprises a basic functional group.

5. The material set for forming a three-dimensional object according to claim 4 ,

wherein the acidic functional group comprises a carboxyl group, and

wherein the basic functional group comprises an amino group or an amide group.

6. The material set for forming a three-dimensional object according to claim 1 ,

wherein an amine value of the second liquid material for forming a three-dimensional object is 100 mgKOH/g or greater.

7. The material set for forming a three-dimensional object according to claim 1 ,

wherein the organic compound A comprises a polyacrylic acid.

8. The material set for forming a three-dimensional object according to claim 1 ,

wherein an amine value of the organic compound B is 300 mgKOH/g or greater but 1,500 mgKOH/g or less.

9. The material set for forming a three-dimensional object according to claim 1 ,

wherein the organic compound B comprises at least any one selected from the group consisting of polyethyleneimine and polyallylamine.

10. The material set for forming a three-dimensional object according to claim 1 ,

wherein the inorganic particles comprise at least one selected from the group consisting of ceramic particles and metal particles.

11. The material set for forming a three-dimensional object according to claim 1 ,

wherein the inorganic particles have bio-compatibility.

12. The material set for forming a three-dimensional object according to claim 10 ,

wherein a volume average particle diameter of the ceramic particles in the first liquid material for forming a three-dimensional object is less than 5 micrometers.

13. The material set for forming a three-dimensional object according to claim 10 ,

wherein a volume average particle diameter of the metal particles in the first liquid material for forming a three-dimensional object is less than 50 micrometers.

14. The material set for forming a three-dimensional object according to claim 1 , wherein a content of the inorganic particles is 20 parts by mass or greater but 70 parts by mass or less relative to 100 parts by mass of the first liquid material for forming a three-dimensional object.

15. The material set for forming a three-dimensional object according to claim 2 , wherein the third liquid material for forming a three-dimensional object comprises a substance that forms a salt with the organic compound A.

16. A three-dimensional object producing method comprising:

forming a layer of a first liquid material for forming a three-dimensional object using a first liquid material for forming a three-dimensional object; and

applying a second liquid material for forming a three-dimensional object to a predetermined region of the layer of the first liquid material for forming a three-dimensional object,

wherein the three-dimensional object producing method repeats the forming and the applying a plurality of times,

wherein the first liquid material used in the forming is included in a material set for forming a three-dimensional object, wherein the material set comprises:

the first liquid material for forming a three-dimensional object, wherein the first liquid material comprises a solvent, an organic compound A, and inorganic particles; and

the second liquid material for forming a three-dimensional object, wherein the second liquid material comprises an organic compound B having reactivity with the organic compound A, and

wherein the second liquid material applied in the applying is included in a material set for forming a three-dimensional object, wherein the material set comprises:

the first liquid material for forming a three-dimensional object, wherein the first liquid material comprises a solvent, an organic compound A, and inorganic particles; and

the second liquid material for forming a three-dimensional object, wherein the second liquid material comprises an organic compound B having reactivity with the organic compound A, wherein the organic compound B comprises at least one selected from the group consisting of polyethyleneimine, polyallylamine, polyacrylamide, polyvinyl pryrolidone, and polyurethane.

17. The three-dimensional object producing method according to claim 16 ,

further comprising after the forming

drying the layer to volatilize the solvent.

18. The three-dimensional object producing method according to claim 16 ,

further comprising after an object is formed

removing an unhardened portion of the first liquid material for forming a three-dimensional object by immersion in a liquid.

19. A three-dimensional object producing apparatus comprising:

a liquid material layer supporting unit configured to support a layer of a first liquid material for forming a three-dimensional object;

a layer forming unit configured to form the layer of the first liquid material for forming a three-dimensional object using a first liquid material for forming a three-dimensional object; and

a liquid material applying unit configured to apply a second liquid material for forming a three-dimensional object to a predetermined region of the layer of the first liquid material for forming a three-dimensional object,

wherein the first liquid material used by the layer forming unit is included in a material set for forming a three-dimensional object, wherein the material set comprises:

the first liquid material for forming a three-dimensional object, wherein the first liquid material comprises a solvent, an organic compound A, and inorganic particles; and

the second liquid material for forming a three-dimensional object, wherein the second liquid material comprises an organic compound B having reactivity with the organic compound A, and

wherein the second liquid material applied by the liquid material applying unit is included in a material set for forming a three-dimensional object, wherein the material set comprises:

the first liquid material for forming a three-dimensional object, wherein the first liquid material comprises a solvent, an organic compound A, and inorganic particles; and

the second liquid material for forming a three-dimensional object, wherein the second liquid material comprises an organic compound B having reactivity with the organic compound A, wherein the organic compound B comprises at least one selected from the group consisting of polyethyleneimine, polyallylamine, polyacrylamide, polyvinyl pryrolidone, and polyurethane.