Product Details:
| Product Name: | Multicolored small fresh ballpoint pen |
| Material: | Plastic |
| Main Uses: | Office,Stationery |
| Style: | Cartoon |
| Place of origin: | Ningbo,China |
| MOQ: | 100pcs |
| Packing: | 1pc/opp Bag |
| Feature: | Lovely cartoons are beautiful and pleasant to the eye |
| Ball pen is a writing tool which uses dry and thick ink and transfers it to paper by means of free-rotating steel balls on the pen head. It has the advantages of simple structure, convenient carrying, writing lubrication and suitable for copying.
Ball pen is a pen that uses tiny rotating balls made of brass, steel or tungsten carbide to release ink into paper when writing. Ball pens differ greatly from their predecessors, reed pens, feather pens, metal-tipped pens and fountain pens. The writing principle of ballpoint pen is mainly to make use of the friction force produced by the ball contact with the paper surface directly when writing, so that the ball can roll in the ball seat and bring out the ink or ink in the pen core, so as to achieve the purpose of writing. Ball pen is a pen written with ink and different pigments. The tip of the pen is a small steel ball. The small steel ball is embedded in a small cylindrical copper bowl, and then connected to a plastic pipe with ink. The ink flows down from all sides as the steel ball rotates. The pigment of ballpoint pen ink is dye. Ink colors are mainly blue, red and black, of which blue ink is the most widely used. In the past, the pigments in blue ink were salt-based pink blue and salt-based blue lotus, and the solvents were oxidation of castor oil and castor oleic acid. Because the salt-based dyes are not light-resistant (light resistance is only grade 1-2), heat-resistant, acid-alkali-resistant, so the durability is poor, has been eliminated.
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