A: Since they are unisex ink ballpoint pen, the same point is that they have thixotropic ink, the difference is that the coloring agent is different. Ordinary neutral ink ballpoint pen is generally black, blue and red three colors, there are pigment-based and dye-based.
Color ink has a variety of colors, there are ordinary color, and fluorescent color, milk color, pastel, metallic color (including sequins), etc.. Different colors, with different requirements, for example, metallic color, due to the addition of metallic color glitter particles in the ink is relatively large, you need to match the large diameter ball beads, the gap is relatively large nib, write a thicker and thicker lines, often used in writing greeting cards, graffiti, art painting and so on. This type of pen ink volume is relatively large, the length of the line is relatively short, the storage time is relatively short.
