Ink composition and recording method using the same

Abstract

An ink composition which comprises a compound represented by formula (1), which is described in the specification; and a plurality of water-soluble organic solvents, wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %, and a recording method which uses the ink composition.

Description

Claims

1. An ink composition which comprises: a compound represented by formula (1); anda plurality of water-soluble organic solvents,wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %:

2. An ink composition which comprises: a compound which is represented by formula (2) and has at least one ionic hydrophilic group; anda plurality of water-soluble organic solvents,wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %:

3. The ink composition according to claim 1, wherein the water-soluble organic solvent having a thioether or sulfoxide moiety is selected from the group consisting of 2,2′-thiodiethanol, dimethyl sulfoxide, 2,2-bishydroxyethyl sulfoxide and 3,6-dithiooctane 1,8 diol.

4. The ink composition according to claim 2, wherein the water-soluble organic solvent having a thioether or sulfoxide moiety is selected from the group consisting of 2,2′-thiodiethanol, dimethyl sulfoxide, 2,2-bishydroxyethyl sulfoxide and 3,6-dithiooctane 1,8 diol.

5. A recording method, which uses an ink composition according to claim 1.

6. A recording method, which uses an ink composition according to claim 2.

7. The recording method according to claim 5, which is an ink jet recording method.

8. The recording method according to claim 6, which is an ink jet recording method.