Ink jet recording method
To provide an ink jet recording method which can record an image on a recording medium irrespective of what material is selected therefor. The ink jet recording method is a method of recording an image on a recording medium with a colorless transparent aqueous ink and includes a step of applying, to the recording medium, the aqueous ink containing a mineral acid and having a pH of 1.0 or less; and a step of forming carbon by making use of the mineral acid.
1. An ink jet recording method of recording an image on a recording medium, the method comprising:
an ink application step of applying to the recording medium a colorless transparent aqueous ink containing a mineral acid and having a pH of 1.0 or less; and
a carbon formation step of forming a carbon atom by depriving a water molecule from a carbon atom-containing component in the recording medium by the mineral acid,
wherein (i) the recording medium has a component which forms carbon by making use of the mineral acid or (ii) when the recording medium does not have a component which forms carbon by making use of the mineral acid, the method further comprises a step of applying the component which forms carbon by making use of the mineral acid, and
wherein the component which forms carbon by making use of the mineral acid comprises a saccharide.
2. The ink jet recording method according to claim 1 , wherein the recording medium is colored in advance and the method further comprises, after the carbon formation step, a carbon removal step of removing the resultant carbon from the recording medium.
3. The ink jet recording method according to claim 1 , wherein the recording medium is selected from the group consisting of wood, paper and cloth.
4. The ink jet recording method according to claim 1 , wherein the mineral acid comprises sulfuric acid or phosphoric acid.
5. The ink jet recording method according to claim 1 , wherein the mineral acid comprises sulfuric acid.
6. The ink jet recording method according to claim 1 , wherein a total content (% by mass) of the mineral acid and water in the ink is 80.0% by mass or more based on a total mass of the ink.
7. The ink jet recording method according to claim 1 , wherein the carbon formation step is carried out by heating the recording medium and wherein a temperature of the heating is 130° C. or more.
8. The ink jet recording method according to claim 1 , wherein the aqueous ink contains a resin.
9. An ink jet recording method of recording an image on a recording medium, the method comprising:
an ink application step of applying to the recording medium a colorless transparent aqueous ink containing a mineral acid and having a pH of 1.0 or less; and
a carbon formation step of forming a carbon atom by depriving a water molecule from a carbon atom-containing component in the recording medium by the mineral acid,
wherein the recording medium is colored in advance and the method further comprises, after the carbon formation step, a carbon removal step of removing the resultant carbon from the recording medium.