Ink jet recording method and ink jet recording apparatus
The present invention provides an ink jet recording method capable of recording an image having good abrasion resistance by using an aqueous ink and a reaction liquid. In the ink jet recording method, the aqueous ink containing a resin particle and the reaction liquid containing a reactant for aggregating the component in the aqueous ink are ejected from a recording head of the ink jet system and applied onto a recording medium. The reaction liquid contains a compound represented by the general formula (1) (n in the formula represents an integer of 0 to 3). At least one of the aqueous ink and the reaction liquid contains a surfactant having an HLB value of ≤15.
1. An ink jet recording method in which an aqueous ink comprising a resin particle and a reaction liquid comprising a reactant for aggregating a component in the aqueous ink are ejected from a recording head of an ink jet system and applied onto a recording medium,
wherein the reaction liquid comprises a compound represented by the following general formula (1),
at least one of the aqueous ink and the reaction liquid comprises a surfactant having an HLB value of 15 or less:
wherein, in the general formula (1), n represents an integer of 0 to 3, and
wherein the resin particle in the aqueous ink first contacts the compound represented by the general formula (1) in the reaction liquid on the recording medium.
2. The ink jet recording method according to claim 1 , wherein a mass ratio of the content (% by mass) of the resin particle in the aqueous ink to the content (% by mass) of the surfactant in the aqueous ink containing the surfactant or in the reaction liquid containing the surfactant is 5.0 times or more to 40.0 times or less.
3. The ink jet recording method according to claim 1 , wherein a mass ratio of the content (% by mass) of the compound represented by the general formula (1) in the reaction liquid to the content (% by mass) of the surfactant in the aqueous ink containing the surfactant or in the reaction liquid containing the surfactant is 60.0 times or less.
4. The ink jet recording method according to claim 1 , wherein a mass ratio of the content (% by mass) of the compound represented by the general formula (1) in the reaction liquid to the content (% by mass) of the resin particle in the aqueous ink is 1.0 times or more to 5.0 times or less.
5. The ink jet recording method according to claim 1 , wherein the content (% by mass) of the surfactant based on the total mass of the aqueous ink containing the surfactant or the reaction liquid containing the surfactant is 1.0% by mass or less.
6. The ink jet recording method according to claim 1 , wherein the HLB value of the surfactant is 12 or less.
7. The ink jet recording method according to claim 1 , wherein the surfactant comprises a polyoxyethylene alkyl ether.
8. The ink jet recording method according to claim 1 , wherein a difference between an SP value of the resin particle and an SP value of the surfactant is 3.0 (cal/cm 3 ) 1/2 or less.
9. The ink jet recording method according to claim 1 , wherein a difference between an SP value of the compound represented by the general formula (1) and an SP value of the resin particle is 5.0 (cal/cm 3 ) 1/2 or less.
10. The ink jet recording method according to claim 1 , wherein an amount of an anionic group of the resin particle is 350 μmol/g or less.
11. The ink jet recording method according to claim 1 , wherein the aqueous ink further comprises the compound represented by the general formula (1).
12. The ink jet recording method according to claim 1 , wherein the reactant is an organic carboxylic acid of an acid form and the pKa thereof is 1.8 or more.
13. The ink jet recording method according to claim 12 , wherein the organic carboxylic acid of an acid form has a plurality of carboxy groups.
14. The ink jet recording method according to claim 1 , wherein the amount of water absorbed by the recording medium from the start of contact to 30 msec 1/2 in the Bristow method is 10 mL/m 2 or less.
15. The ink jet recording method according to claim 14 , wherein the recording medium comprises a resin layer.
16. The ink jet recording method according to claim 1 , wherein the aqueous ink and the reaction liquid are applied onto the recording medium, and then the recording medium is heated.
17. The ink jet recording method according to claim 16 , wherein a difference between a heating temperature T(° C.) of the recording medium and a glass transition temperature Tg(° C.) of the resin particle (T-Tg) is −10° C. or more.
18. An ink jet recording apparatus equipped with an aqueous ink comprising a resin particle, a reaction liquid comprising a reactant for aggregating a component in the aqueous ink, and a recording head of an ink jet system which ejects the aqueous ink and the reaction liquid to apply the aqueous ink and the reaction liquid onto a recording medium,
wherein the reaction liquid comprises a compound represented by the following general formula (1),
at least one of the aqueous ink and the reaction liquid comprises a surfactant having an HLB value of 15 or less:
wherein, in the general formula (1), n represents an integer of 0 to 3, and
wherein the resin particle in the aqueous ink first contacts the compound represented by the general formula (1) in the reaction liquid on the recording medium.
19. The ink jet recording method according to claim 1 , wherein a content (% by mass) of the compound represented by the general formula (1) in the reaction liquid is 7.0% by mass or more to 31.0% by mass or less based on the total mass of the reaction liquid.
20. The ink jet recording method according to claim 1 , wherein a content (% by mass) of the resin particle in the aqueous ink is 1.0% by mass or more to 20.0% by mass or less based on the total mass of the aqueous ink.