Gel on gel pen means gel, and gel pen means gel pen.

gel pen uses pigment ink, that is, ink formed by water-insoluble pigment particles suspended in gel ink matrix.

Gel pen has the advantages of fountain pen and oily ballpoint pen, with comfortable writing feel, low ink viscosity, and added substances that are easy to lubricate. The viscosity of writing medium is between water-based and oily, so it is smoother than ordinary oily ballpoint pen. Extended information

Principle

Although the neutral ink pen belongs to ballpoint pen products, its writing principle, pen head structure and processing technology are similar to those of the traditional oily ballpoint pen, but due to the difference in ink performance, it has special requirements for the pen head.

under the hydraulic action of the writing liquid, the writing liquid passes through the gap between the steel ball and the pen tip to form handwriting. It mainly uses the friction force generated by the direct contact between the ball and the paper surface when writing, so that the ball can roll in the ball seat and bring out the ink or ink in the refill, and the subsequent water can be continuously replenished under the action of atmospheric pressure to achieve the purpose of writing.

Baidu encyclopedia-gel pen