| 摘要 |
<p>PURPOSE:The titled composition, obtained by adding a silicone block copolymer to an ink for ball-point pens containing an organic solvent, resin and colorant, capable of preventing the dropping of the ink and improving the extrusion properties. CONSTITUTION:An ink composition for ball-point pens obtained by adding preferably 0.1-1.0wt% silicone block copolymer which is a copolymer of dimethylsiloxane and ethylene oxide and/or propylene oxide to an ink for the ball-point pens containing at least one or more organic solvents, e.g. benzyl alcohol or dioxane, resin, e.g. vinyl resin or polyamide resin and colorant.</p> |
