|The erasable pen is made of special ink and refined by special techniques. It can be divided into erasable ballpoint pen, erasable gel pen, erasable water pen, erasable pen and so on. A liquid that evaporates quickly and has a certain viscosity.|
It is made of special ink and refined by special process. It is divided into erasable ballpoint pen, erasable gel pen, erasable water pen, erasable pen and so on. The writing can be cleaned with a normal eraser or a special pen for a certain period of time, and can be repeatedly modified, but some pens cannot be written, and have the double advantages of a ballpoint pen and a pencil. Its appearance, writing, and cost are similar to those of ordinary ballpoint pens and gel pens. It can be used in different grades and different colors, and can be widely used for writing, drawing, and drawing.
The erasable pen ink is a colored ink mainly composed of a water-soluble solvent, supplemented by a polymer film-forming agent, a pigment, and other auxiliary agents. The ink and the matching pen and board of writing tools can be used for school teaching, office, academic exchanges, children's painting and calligraphy practice. It is characterized by fluent writing, easy writing and wiping, no dust pollution, and can completely replace chalk and blackboard. It is an ideal product for teaching board books and a major innovation of traditional teaching equipment.