| 摘要 |
<p>PURPOSE:To provide the titled composition outstanding in resistance to nib dryability, thus with nibs not apt to dry even left uncapped for a long time, comprising a colorant, organic solvent, a resin soluble to said solvent and specific sorbitan fatty acid ester(s). CONSTITUTION:The objective composition comprising (A) pref. 2-17wt.% of a colorant, (B) pref. 65-85wt.% of an organic solvent (e.g. ethanol, methyl ethyl ketone, ethyl acetate, toluene, cyclohexane, hexane), (C) pref. 3-19wt.% of a resin soluble to the solvent B (e.g. rosin), and (D) pref. 0.15-5wt.% of sorbitan fatty acid ester(s) of formula I and/or II (R is H or alkyl, where all of them are not H) (e.g. sorbitan monocaprylate).</p> |
