We select high-quality inks with appropriate viscosity to ensure that they can flow evenly and stably in the rollerball pens. This ink not only has good writing performance, but also maintains consistent writing effects on different papers to avoid blurred or broken handwriting. The ink formula has ...

In modern stationery manufacturing, more and more manufacturers tend to use environmentally friendly plastic materials, such as biodegradable plastics, recyclable plastics, etc. These materials have less impact on the environment during production, use and disposal. When the Students Use Roll Ball P...

Acrylic markers that use environmentally friendly and pollution-free oily ink have significant advantages in writing fluency and quick-drying properties. The environmentally friendly and pollution-free oily ink uses a special formula to ensure its smoothness and stability. This ink flows out of the ...

As a learning tool, one of the core functions of a highlighter is to help students quickly and accurately mark key information during reading, learning or reviewing. Therefore, the quick-drying property of the ink has become a key factor that cannot be ignored in the design process. Quick-drying ink...