| 摘要 |
PROBLEM TO BE SOLVED: To provide an oily ink composition for a writing instrument, which can give handwriting excellent in adhesiveness without cissing even when writing is done not only on a non-permeable surface such as a synthetic resin film, resin-coated paper and metal but on a surface with poor wettability such as a kraft tape for packaging.SOLUTION: The oily ink composition for a writing instrument comprises at least a colorant, an organic solvent, a resin and a trisiloxane type polyether-modified silicone. A marking pen accommodating the above oily ink composition for a writing instrument is also provided. The trisiloxane type polyether-modified silicone is used by 0.1 to 10 mass%, preferably 0.5 to 5 mass% in the whole amount of the ink composition. |
