In the mid-Qing Dynasty, Hetian white jade children can teach Nafu Yingxiang small ornaments

In the Tang Dynasty, Wu Jing wrote the book "Zhenguan Zhengyao", in which "On Chongruism" said: "The "Li" says: "If you don't cut jade, you can't make a tool, and people don't know it if you don't learn it." It can be seen that the ancients were very interested in learning, and there is a saying that people have to live to old age and learn to grow old, and they are not ashamed to ask. Bats are not birds or mice, but a mammal that can fly, belonging to the order Chiroptera in zoology. In traditional Chinese decorative arts, the image of the bat is regarded as a symbol of happiness. Customs use the homophony of the words "bat" and "fu", and combine the arrival of the bat into the meaning of "advancing blessing". Fall from the sky like a bat. This set of auspicious patterns. The color of the bottom of this collection is the old oil. Since the Song Dynasty, culture and art have developed rapidly. From the royal family to the literati, scholars and scholars all advocate the art of jade. In the Song Dynasty, jade was called grinding jade. According to years of research, Song imitates Han, and emphasizes literature over martial arts. The popularity of the literati is too heavy, and the old saying of oil-lifting in the Song Dynasty reflects the Song Dynasty's governance of jade, antiques and Mugu. Use plant rainbow grass juice and organic dye to cook the jade repeatedly to make the jade puffy, and the rainbow juice is hot. Some cool down rapidly, creating hidden grid patterns. Some are naturally cooled, and the cracks are almost invisible to the naked eye. In the Song Dynasty, the jade treatment also used old oil to cover up the defects of the jade body. What a popular saying: Flaws do not hide goodness. This refers to people, who have small shortcomings and faults, but the mainstream quality is good. However, Zhiyu wants the market to recognize it, and the craftsmen dye it and hide the flaws, so as to become the beauty of the beautiful color. Laoti oil as the name implies: old ---ancient--- past. Oil extraction---The oil of hotan jade, which was the mainstream material at that time, was removed to make it sang and old-fashioned. It is worth pointing out that the vast majority of the old oil is Hetian jade. And the old oil basically does little damage to the jade, the reason is that it gradually heats up and takes a long time, and the dye is the organic substance of the plant juice. Although from the Song Dynasty to the Qing Dynasty, the old oil was used, from rainbow grass to ebony juice, wild flower juice, maple oil, wild flower leaf juice, etc. The ancients usually used some ebony shavings to simmer jade with a small fire to make the jade locks blackened to imitate black lacquer ancient jade. There is also preheating the jade with hot water, and then grilling it on a wire rack with a charcoal fire, and smearing Wax on the jade while burning. The oil is carbonized into black powder ash, which is then baked and repainted without time limit until black spots are formed on the jade. Another method is to use cotton to wrap the jade and bake it on a charcoal fire. After carbonization, the black ash on the ash-coated cotton is wetted with water and then burned again, so that small fire patterns are formed on the jade.