| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a marking pen capable of continuously drawing bordered multi-color written lines. <P>SOLUTION: The marking pen comprises an ink guide core having a pen tip with its one end protruding from at least the tip end of the barrel main body, a water-soluble ink storage part having a water-soluble pigment dissolved in water arranged inside of the barrel main body and an oil-soluble ink storage part wherein an oil-soluble dye exhibiting a color tone different from the water-soluble pigment is dissolved in an organic solvent which is hard to be dissolved or not dissolved in water. The marking pen is characterized in that the oil-soluble ink mainly exists on the peripheral edge part in the radial direction near the pen tip end, while the water-soluble ink exists in the inside part of the peripheral edge part. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
