Surface treatment liquid compostion, ink set, recording method, and recording device

1. A surface treatment liquid composition for a substrate, the composition comprising:

a nonionic resin particle;

a multivalent metal salt; and

an organic solvent comprising at least one of 1,2-propanediol, 1,2-butanediol and 2,3-butanediol.

2. The surface treatment liquid composition according to claim 1 , wherein the nonionic resin particle comprises at least one of a polyolefin resin, a polyvinyl acetate resin, a polyvinyl chloride resin, a urethane resin, a styrene butadiene resin, and a copolymer thereof.

3. The surface treatment liquid composition according to claim 1 , wherein the multivalent metal salt comprises at least one of an aluminum salt, a calcium salt, a magnesium salt, and a nickel salt.

4. The surface treatment liquid composition according to claim 1 , wherein the multivalent metal salt comprises an aluminum salt selected from the group consisting of aluminum sulfate, aluminum phosphate, polyaluminum chloride, and aluminum potassium sulfate.

5. The surface treatment liquid composition according to claim 1 , wherein the nonionic resin particle accounts for 0.5-20 percent by mass of the surface treatment liquid composition.

6. A recording device, comprising:

a pre-processing fluid comprising the surface treatment liquid composition of claim 1 ; and

an ink discharging head configured to discharge one or more inks, each ink comprising a coloring material.

7. The recording device according to claim 6 , wherein the one or more inks comprise a non-white coloring material having a volume average particle diameter of from 30 to 110 nm and a thermoplastic resin particle.

8. The recording device according to claim 6 , wherein the one or more inks comprise a white coloring material and a thermoplastic resin particle.

9. The recording device according to claim 6 , wherein the one or more inks comprise:

a non-white ink comprising a non-white coloring material having a volume average particle diameter of from 30 to 110 nm and a thermoplastic resin particle, and

a white ink comprising a white coloring material and a thermoplastic resin particle.

10. The recording device according to claim 9 , wherein at least one ink of the non-white ink and the white ink has a ratio (R/P) of a mass ratio (R) of the thermoplastic resin particle to the at least one ink of the non-white ink and the white ink to a mass ratio (P) of the coloring material to the at least one ink of the non-white ink and the white ink is 0.5-3.0.

11. The recording device according to claim 7 , wherein a glass transition temperature Tg 1 of the nonionic resin particle of the surface treatment liquid composition is lower than a glass transition temperature Tg 2 of the resin particle of the ink.

12. A recording method, comprising:

applying the surface treatment liquid composition of claim 1 to a substrate; and

printing by discharging the one or more inks to the substrate.

13. The recording method according to claim 12 , further comprising:

reforming a surface of the substrate by at least one method selected from the group consisting of a corona treatment method, an atmospheric pressure plasma processing method, a frame processing method and an ultraviolet irradiation processing method.

14. The recording method according to claim 12 , wherein:

the one or more inks are discharged by an ink discharging head, the ink discharging head including a nozzle configured to discharge the one or more inks, a plurality of individual liquid chambers communicating with the nozzle, a flow-in path configured to flow the one or more inks into the individual liquid chambers, and a flow-out path configured to flow the one or more inks out of the individual liquid chambers; and

the printing further comprises circulating the one or more inks from the flow-out path to the flow-in path.

15. The recording device according to claim 6 , wherein the ink discharging head includes a nozzle configured to discharge the one or more inks, a plurality of individual liquid chambers communicating with the nozzle, a flow-in path configured to flow the one or more inks into the individual liquid chambers, a flow-out path configured to flow the one or more inks out of the individual liquid chambers, and a circulating device configured to circulate the one or more inks from the flow-out path to the flow-in path.

16. The recording method of claim 12 , wherein the substrate has a water-absorption amount of 10 mL/m 2 or less between the contact and 30 msec 1/2 after the contact according to the Bristow method.

17. The surface treatment liquid composition of claim 1 , wherein the multivalent metal salt comprises aluminum sulfate.

18. The surface treatment liquid composition of claim 1 , wherein the multivalent metal salt is a trivalent metal salt.

19. The surface treatment liquid composition of claim 1 , wherein the multivalent metal salt comprises phosphate.