Color pencil is mixed with pigments or dyes and waxes and other manufactured into powder together. Even water color pencil off the paper wet, the color will not dissipate. In other words, it does not bleed. At this point, it made water soluble dye ink used to write different. For example, the word written in red ink on paper drop in Sheung Shui, the paper will bleed red. This is because the main component dye in red ink (not paint) dissolved by water.
The hot roast color pencil again to write, pencil color becomes deep. This is because the colored wax pencil raw material of a roasted.