First, the role of squid ink Although squid ink cannot be used for writing, its ink can be used for medical treatment. Squid ink can have anti-tumor activity, and at the same time, squid ink can also improve its own immunity. He is often used to make some health care products, and its effect on health care products is much stronger than that of calligraphy, because it can really help people improve their immunity, but it can't help people improve their calligraphy ability.
Second, the origin of squid ink squid ink is not ordinary. It is a protective article used by squid to resist the harm of bad people and keep itself safe. When the squid encounters some dangerous situations and wants to escape, it can release this ink, because most marine creatures can see with their own eyes, and they can protect themselves from harm by interfering with their sight with ink. Under normal circumstances, squid will not spit out such ink, only when it is stimulated.
But our current calligraphy world is written with a specific ink. This kind of ink has a long storage time and is convenient to write on paper. When people want to use this ink, they can open it and use it. Squid ink, although it looks exactly like this ink, can't be used for writing.