| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-fusible ink which excels in acid resistance and alkali releasablility and is suitable as the mask for an electronic circuit sub strate. SOLUTION: The heat-fusible ink can be obtained by mixing 82.9 wt.% wax having an acid value of >=80 (e.g. a montanic acid wax), 15 wt.% wax having a molecular structure with many branches (e.g. a microcrystalline wax, an oxidative microcrystalline wax, a low density polyethylene wax or an oxidative low density polyethylene wax), 0.1 wt.% antioxidant, and 2 wt.% dye at 120 deg.C with stirring. |
