The ancients said that gold is not exchanged.

What the ancients called "gold does not change" is the "ink" in Four Treasures of the Study.

The name of "gold does not change" comes from the record in Lei Xin's Mo Jing in the Qing Dynasty: "Daily use is halved at the age of one, and daily use is not changed"; The other sentence is from a poem by a philosopher, "A thousand dollars can't buy an elixir, but everything needs cloth."

Hui ink was very famous in the Qing Dynasty, and Cao Sugong and Hu Kaiwen were good brands in the "gold without exchange" ink block. The earliest paper village "Jingji Paper Village" in Beijing was founded in 1898.

The impression of ink seems a little simplistic, but it is an indispensable article in ancient Chinese characters. With the help of this original material, the fantastic artistic conception of China's paintings and calligraphy can be realized. The world of ink is not boring, but rich in connotation. As a consumable, ink can be presented intact today, which is very precious.

Classification of ink:

There are two kinds of ink: Song Yanmo ink and lampblack ink. Song Yanmo is made of ash burnt by pine trees, which is dark in color, poor in luster and light in gum, and only suitable for writing. Smoke and ink are mostly cigarettes made of animals or vegetable oil, which are characterized by black and bright color; The most common tung smoke ink is solid, delicate and shiny.

Chinese painting generally uses lampblack, only color painting occasionally uses pine smoke. But in the performance of some plain things such as butterflies, black velvet and so on. It is also best to use pine smoke. Chinese painting ink generally uses ink ingots. When you choose Mo Ding, you should look at its ink color.

It is best to see that the ink is blue and purple, followed by black, and the worst is red, yellow or white. According to the purpose, it can be divided into ordinary ink, tribute ink, royal ink, homemade ink, rare ink, gift ink and so on.

Reference to the above content: Baidu Encyclopedia-Ink