Country’s ink
The ink used for fountain pen and the other pens are different. The amount of ink used for different types of works all over the world. The ink also differs in the different countries. Egypt has got its own ink which is made within that country. The dye which is used in the manufacture of the ink is obtained from some natural metals. It is also got from some kind of seeds and other such things like beans, walnuts, etc. the duration of an ink depend upon the substance which is used to manufacture them. Some types of ink tend to fade easily and they do not long lost.