1, inorganic dyeing, also known as metal ion penetration dyeing, is colored by soaking and baking metal in water-soluble inorganic salt solution.

2. Organic dyeing is just like the textile dyeing process. The first process is the most commonly used. Dyeing jade is harmless and safe. Dyeing, also known as "baking", is a method to simulate the natural skin color of jade by using artificial imitation technology of dyes on jade with no color or poor color.

Extended data:

Health care function of jade

First, according to Compendium of Materia Medica, "Jade pieces are made of jade. The smell is sweet and non-toxic. It is said that jade is the most abundant substance in human body. Indications for removing stomach heat, dyspnea, thirst quenching, beans and other debris. If you take it for a long time, you will be healthy for many years.

It can moisten the heart and lungs, help the voice moisten the throat and nourish the hair. Nourish the five internal organs and stop fidgety. Gold, silver and Ophiopogon japonicus are beneficial to decoction. "This shows that jade was not only used for viewing in ancient times, but also played a very good role in medical care.

Secondly, according to modern science, jade not only contains many trace elements beneficial to human body, such as calcium, selenium, tin, zinc, copper, iron, manganese, magnesium, cobalt, chromium, nickel, lithium, potassium, sodium, titanium and so on.

It is also proved that it can also produce special photoelectric effect. A special electromagnetic field is formed, which resonates with the biological magnetic field of the human body, thus improving the metabolism of the human body and improving various physiological functions of the human body.

In addition, jade itself contains a variety of medium and trace elements, which can be inhaled through the skin for a long time, thus balancing the skills of the human body and achieving the efficacy of getting rid of diseases and health care.