In the jade trading market, in addition to the common bracelets and pendants, the most eye-catching is probably the dazzling face, many Cuiyou are often attracted by these small, round, fluorescent "small things." However, in these round and full mouths, are each one of the same quality? If not, what kind of means make them look more beautiful? What are the more concealed optimization methods that will be used in the face? This is summarized by a large number of visits to the market and the usual identification work. Optimization is generally only a way to improve the color of the backing pad or yellowing, and the treatment methods are more diverse, in addition to filling, dyeing treatment, as well as bottom coloring, upper polishing powder, surface coated with colored wax and so on. First, the "bottom" The jade ring face is generally sold in the shape of a ring, earrings, bracelets and necklaces. The copper plate will be removed after the transaction and re-inlaid. The white ring faces are basically not sealed. If the back cover is opaque, the gloss will be "boring" and not conducive to sales. Most of the green and purple ring faces have a back cover, and some improvement or fraudulent means also make a fuss by the back cover. There are two kinds of copper plates, white and yellow. There is a hole in the middle to transmit light. Usually, white or yellow tin foil paper is used to improve the color. When the color is deep and stuffy, it will generally be white to brighten the overall color. When the green ring is blue-gray, or lighter, it is generally yellow, so that the green looks more yang. The ring surface of the bottom is required to be used as a back cover in conjunction with the bottom of the bottom to achieve the best effect of the face itself. This type of bottom is recognized as being acceptable and is optimized. Second, "bottom painting" In addition to the bottom of the ring, there will be a bottom coloring phenomenon. This is a treatment. The light green or dark jade may be treated like this. Remove the green film on the bottom of the ring and wipe it off with alcohol. The way the effect on color is much more pronounced than the bottom. The color and front color of the ring face treated in this way will have a big difference. When the colors in these two directions are obviously inconsistent, it must be paid attention to. Of course, some side colors are generally deeper than the front color, so you need to pay attention to distinguish between them. It is easy to judge. Third, "polishing powder dyeing" and "painting wax" Polishing powder dyeing is also a treatment that is easily overlooked. Some pale purple, light green ring surface is dyed with chemical reagents of chromium oxide and manganese oxide. Compared to the bracelet with the polished powder, the ring-shaped face on the powder needs to be carefully identified. The surface of the ring surface treated in this way is generally uniform. When zoomed in, the dye will be distributed along the gap of the particle on the surface. Compared with the natural color, the color is not very natural. It is not easy for people to feel it and it is easy to see. In addition to the surface of the polishing powder, there are also surface coated with colored wax, the waxing part of the gloss is more boring, zoom in on the surface scratches, and can be scraped off with fingers, this treatment is relatively rare. From the above point of view, the jade in the market has a variety of falsification methods, and it is impossible to prevent it. It is best to check carefully when purchasing, and confirm that the goods are correct and then make the transaction more secure; if you can't judge, you can choose the regular jewelry inspection agency to conduct the test before making the purchase. Knitted Gloves For Men,Customized Knitted Gloves,Winter Men'S Knit Gloves,Winter Knitted Gloves Huaian Changfeng Knitting Co., Ltd. , https://www.cf-knitting.com