| 摘要 |
<p>PURPOSE:The titled ink, consisting of a water-soluble dye, a water-soluble organic solvent, a water soluble high polymer having stringiness and a small amount of water, usable under the capless conditions in the same manner as in an oil based ball point pen, and having continuous writing property and improved feelng of writing. CONSTITUTION:An ink consisting of (A) a water-soluble dye, preferably a direct, acid or basic dye or food dyestuff, having a high color value, capable of giving a deep script in a small amount, and having improved dissolving stability, such as Direct Deep Black XA, (B) a water-soluble organic solvent, preferably having >=150 deg.C boiling point, and evaporating slightly such as (di)ethylene glycol, (C) a water-soluble high polymer having stringiness, e.g. polyethylene oxide having >=500,000 molecular weight, and (D) <=10wt%, preferably <=1wt% water. The mixing ratios of the components are as follows; 5-40wt% component (A), 10- 85wt% component (B) and 0.1-10wt% component (C).</p> |
