| 摘要 |
PROBLEM TO BE SOLVED: To obtain an oily ink for ball-point pens, hardly causing the irregularity in the concentrations of drawn lines in response to writing directions, when the lines are drawn using a ball-point pen, by adding a specific compound to an oily ink for the ball-point pens. SOLUTION: This oily ink for ball-point pens comprises (A) an organic solvent (for example, a glycol ether compound or an alcohol compound such as an aromatic alcohol or a polyhydric alcohol), (B) a colorant for example, a dye such as Barifast color [made by Orient chemical industry (limited)] or a pigment (for example, an inorganic pigment such as titanium dioxide or an organic pigment such as an azo lake)}, (C) a resin (for example, a ketone resin), and (D) a compound of the formula [R1-R3 are each H or a hydrocarbon, provided that the total carbon number of R1-R3 is 7-30 carbon atoms; X is a halogen; (m) is >=1; (n) is >=2]. The components A, B, C and D are preferably contained in amounts of 30-80 wt.%, 3-50 wt.%, 0.1-50 wt.% and 0.05-15 wt.%, respectively. |
