Water-based pen
The ink used for water-based pens is pure water, and the paper has strong absorbency. Water-based pens are generally used on the absorption surface, and can be erased even if they are coated on the non-absorption surface. Writing on paper generally does not have back marks. The advantages are good writing feel and good writing quality, but the disadvantages are low ink viscosity and short writing length, that is, fewer words can be written under the same ink output. Compared with oil-based pens, water-based pens are tasteless, the nib is not easy to dry, and the writing is light-resistant but not waterproof. When it comes to water, it will be rendered, and if it is accidentally dropped, it will be easy to cut off water. Water-based pens include: pen, ordinary pen, gel pen, ballpoint pen, ballpoint pen, signature pen, highlighter pen, whiteboard pen and watercolor pen.
Oil pen
The ink for oil-based pens is oily, insoluble in water and not easy to fade and melt. Oil-based pen can write on the absorption surface and non-absorption surface, and it is not easy to be erased. When writing on white paper, there are obvious back marks on the back, which are often used in situations where marking is needed. The advantages are high ink viscosity and long writing length, that is, more words can be written under the same ink output; The disadvantage is that the writing feel and quality are not good. Oily pens include ballpoint pens, marker pens, pigment pens and gel pens.
Zhong You Peninsula
The ink used by China Oil Pen is between water-based pen and oil-based pen, and its storage time is longer than that of water-based pen. It is not easy to melt in water, but its performance is not as stable as that of oil-based pen. When writing some documents that need to be saved, China oil pen is often used.