By Lily | 04 March 2023 | 0 Comments
Structure principle of ballpoint pen
Structure principle of ballpoint pen
I. Principle and structure of ballpoint pen
The writing principle of ballpoint pen mainly uses the friction generated by the direct contact between the ball and the paper when writing, so that the ball rolls in the ball seat and brings out the ink or ink in the pen
Water, for the purpose of writing.
Ballpoint pen is a pen that uses ink and different pigments to write. The tip of the pen is a small steel ball, which is inserted into a small cylindrical copper bowl, and then connected with oil.
The ink of the plastic tube, ink with the steel ball rotation from the four sides.
The pigment of ballpoint pen ink is dye. Ink color is mainly blue, red, black three, especially in blue ink use the most. In the past blue ink pigment composition is
The solvent is oxidized castor oil, ricinoleic acid. By the dry base dye is not light resistance (light resistance only 1 -2 level), heat resistance, acid and alkali resistance.
So durability is poor, has been eliminated. The 424 blue ballpoint pen and 322 black ballpoint pen on the market have better durability.
It is often reported that scented ballpoint pens are toxic. The volatile organic compounds contained in poor scented stationery are toxic. Have certain damage to human body; But we haven't heard of cases of poisoning caused by the normal use of oil-based ballpoint pens without volatile organic compounds.
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