1. Paper is made by either removing water or thinly processing animal skins into thin layers of water. Then, let's talk about the history of the first paper and paper.

2. Paper was first invented in ancient China, and the oldest existing paper in the world is Bangatanji, an object from the 2nd century B.C. found in Tianshui, Gansu Province, China.

3. Later, the paper production and use of paper increased significantly due to the improved method of paper making and the activation of publishing, but it was an expensive item that only the upper class could use.

4. In ancient Egypt, a plant called papyrus was processed and used as a recording medium. Papyrus was popular in the Middle East and Europe because it was as efficient as real paper, and was highly preferred as a major export item in Egypt's heyday, but it was banned due to its closed-door policy of Alexandria through the Roman Empire. However, since the 6th century, papyrus was grown in Italy and other countries, so papyrus was used a lot instead of parchment, which was relatively expensive because it was made of sheep's skin. Leonardo da Vinci, Galileo Galilei, written on paper in papyrus.

5. So let's look at what goes into the paper manufacturing process and why and why it goes into necessity.

6. Starch is added to the papermaking process. This is the most common use of starch for purposes other than food. When making paper, stone powder is added to improve durability and smooth printing.

7. Did you know that paper has front and back sides? There is a distinction between modern and contemporary paper that looks smooth in the front and back. The back is rougher than the front...

8. The smooth part is the front and the rough part is the back. This difference occurs because the back of the paper comes into contact with the mesh when the pulp is filtered and dehydrated during the papermaking process.

9. Of course, a lot of paper dehydrated with twin rollers, which are virtually indistinguishable, is in circulation these days, but in the field of art, this fine difference is one of the factors that affect expressiveness.

10. However, paper can become as powerful as metal depending on the process! I'm sure there's no one who's ever had a hard time cutting their fingers on paper. During the Joseon Dynasty, there was a defense tool made of several layers of hard paper called Ji-Gab.