| 摘要 |
The present invention addresses the problem of providing a lithographic ink composition that has superior printability and reduces the volatile organic solvent (VOC) content in a printing ink. The lithographic ink composition satisfies all of the following conditions (a)-(d). (a) A water-soluble cellulose derivative is included at 0.01-3 mass%. (b) Water is included at 1-30 mass%. (c) A 2% aqueous solution of the cellulose derivative has a viscosity of 2.5 to 1500 mPa·s, or a 1% aqueous solution thereof has a viscosity of 10-8000 mPa·s. (d) The cellulose derivative has an etherification degree of 0.45-1.00. Additionally, the present invention is the lithographic ink composition to be used in a printing method wherein a dampening solution is used. Moreover, the present invention is a printed matter that has been printed using the lithographic ink composition. |
