| 摘要 |
<p>PURPOSE:To provide black ink which is deepblack and suitable for use as marking ink and ink for sintered article, consisting of a natural high-molecular material and/or a synthetic high-molecular material, graphite and a solvent. CONSTITUTION:A natural high-molecular material such as gilsonite or rosin and/or a synthetic high-molecular material such as vinyl acetate resin or vinyl chloride resin, graphite, a solvent such as methyl isobutyl ketone or n-butyl acetate and optionally, a plasticizer such as dioctyl phthalate are blended together.</p> |
