Ink jet and ink jet recording method
An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.
1. An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule, wherein the compound comprises two or more triazine rings per molecule.
2. The ink-jet ink according to claim 1 which contains a colorant selected from a phthalocyanine colorant, an anthrapyridone colorant, a monoazo colorant, a disazo colorant, a trisazo colorant, and a tetrakisazo colorant.
3. The ink-jet ink according to claim 1 , wherein the water-soluble planar compound is a non-fluorescent compound having an absorption peak at a wavelength of 350 nm or shorter and a molar absorptivity of 10,000 or less.
4. The ink-jet ink according to claim 1 , wherein the water-soluble planar compound is a non-fluorescent compound having an absorption peak at a wavelength of 320 nm or shorter and a molar absorptivity of 10,000 or less.
5. The ink-jet ink according to claim 1 , wherein the water-soluble planar compound has a sulfo group.
6. An ink jet recording method comprising forming an image with the ink-jet ink according to claim 1 .
7. A method for reducing bronzing in ink jet recording comprising forming an image with an ink-jet ink comprising a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule, wherein the compound comprises two or more triazine rings per molecule.