Direct filling ink capable of being used for a ballpoint pen containing an aqueous ink composition

摘要

There is provided an ink capable of being used in a ballpoint pen, the ink comprising: 2 to 10 % by weight of a dye, 20 to 30 % by weight of a wetting agent, 5 to 10% by weight of urea, 0.2 to 0.4 % by weight of cross-linked acrylic acid polymer, 0.05 to 0.2 % by weight of xanthan gum, 1.0 to 5.0 % by weight of sorbitol, and the balance, water.