| 摘要 |
<p>PURPOSE:To provide the oily marking open ink composition containing a coloring agent, an organic solvent, a resin, and an amine-modified silicone oil, little in the bleeding of pen marks and not generating the scratching of pen marks when used on the non-absorbing surface of paper including coated paper. CONSTITUTION:1.0-20.0wt.% of a coloring agent (e.g. methyl violet), 50.0-95.0wt.% of an organic solvent (e.g. isopropyl alcohol), 1.0-15.0wt.% of a resin, and 0.01-5.0wt.% of an amino-modified silicone oil to provide the objective oily marking pen ink composition not generating the bleeding and scratching of pen marks when used on the non-absorbing surface of paper including coated paper. The amino-modified silicone oil comprises the reaction product produced by reacting a siloxane oligomer produced by hydrolyzing an aminoalkylmethyldimethoxysilane with a cyclic siloxane in the presence of a basic catalyst.</p> |
