Esferográfica Oleosa

A bola da cabeça da caneta usada é feita principalmente de aço inoxidável ou metal duro. O tamanho do diâmetro da bola determina o tamanho das linhas de caligrafia. Os diâmetros comuns das esferas são 1 milímetros, 0.7 mm e 0.5 milímetros (the body or core of the product is often marked). The ink of ballpoint pen is specially made, which is mainly composed of colors, solvents and tackifiers. Common colors are blue, black and red. Common ink is mostly used for general writing, and special ink is mostly used for file writing. Ink for file writing is usually marked on the core, such as DA on the domestic core.

Oily ballpoint pen is the first product of ballpoint pen series. It has been more than 60 years since it was put on the market in batches. After long-term improvement and perfection, the production technology of oil ballpoint pen is mature, the product has stable performance, long shelf life and stable writing performance. It has become a traditional product of ballpoint pen products. The ink viscosity of oil ballpoint pen is high, so the writing feel is relatively heavy.