When for the first time in school they get a chance to write with a pen instead of a pencil, there is no limit to the happiness of children. Children buy different types of pens for themselves. However, the ink inside all pens is mostly of two colors, blue or black. Now the question arises that when so many colors are present in the world then why only blue or black color was chosen for writing. Let us know the science behind it.
Blue and black colored ink
The use of blue and black colored ink in writing is a long-standing tradition. And there are many scientific, cultural and experimental reasons behind it. Let us tell you, from the time of ancient Egypt to the Chinese imperial courts, ink was prepared in different types of colors. However, even at that time black and blue ink had special significance. Talking about black ink, first of all it was made from dark colored carbon compounds.
Scientific reason behind it
Actually, black And blue colored ink has high durability. Let us tell you, black ink, which is usually carbon based, does not change color with time and the identity of the words written with it remains clear for a long time. Apart from this, blue ink contains special pigments and this color is also not affected by UV rays nor does it fade with time.
It is also easy to read
Black and blue ink provide clarity making it easy to read. In fact, black ink has high contrast, especially on white paper. While the blue color has a gentle effect on white paper and is comfortable to read for long periods of time. This is the reason why pointers or headings are written in black color and the answers are written in blue color. Because the answers are long and need to be read for a long time.
Who discovered the ink
If you think that the discovery of ink If the credit can be given to any one person or culture then perhaps you are wrong. This is because it developed over time in different civilizations. If we talk about the oldest evidence of ink, it dates back to about 5,000 years ago, when it was developed in ancient Egypt, China and Mesopotamia. The ancient Egyptians are believed to have used black ink, which was made from a mixture of charcoal and water. It was used on papyrus for writing. Whereas, in China about 3,000 years ago, natural pigments and resins were used to prepare ink.
