What is 18K gold foil

Let's introduce what gold foil is first. 18K gold foil is well understood

The gold foil is a thin piece made of gold hammer. Due to good ductility and plasticity, gold can be hammered with one or two (31.25 grams) of gold foil with one thousandth of millimeters thick and an area of ​​16.2 square meters. That is, one gram of gold can be made into a pure gold foil of about 0.5 square meters, with a thickness of 0.12um. The standard specifications of the gold foil are 9.33*9.33cm, and other common specifications are 8*8cm, 10.9*10.9cm, 4.5*1.5cm, and 2.75*2.75cm.

The golden nature is stable, permanently unchanged, antioxidant, humidity, corrosion resistance, mildew -resistant, insect -proof, radiation protection, gold foil made of gold has a wide range of uses. The ancient gold foil is to purify the gold first, and then the knocking through thousands of refined gold leaf into a gold leaf with an area of ​​2.5 square centimeters, and then sandwiched in the black gold paper made of kerosene oil, and then hit the manual hammer of 6-8 hours. Make the golden leaves into foil, which is equivalent to about forty times that of the golden leaves, and then cut into a square. Gold foil is a craftsmanship of the Chinese nation. It originated from the Eastern Jin Dynasty and matured in the Southern Dynasties. It is popular in Song, Qi, Liang, and Chen. Today, the Longtan area of ​​Nanjing (Jiangning) is the birthplace of gold foil. According to legend, it has a history of nearly 1700 years. The inscription of the Cixi Mausoleum in Beijing is a typical gold foil product.

The traditional process production gold foil is based on the gold bars with a gold content of 99.99%as the main raw material. The special processing of more than a dozen processes such as polyester, hammer, and foil makes it golden. Light and soft, light as Hongmao, as thin as cicada, less than 0.12 microns.
Gold foil has the difference between "red gold" and "gold". Since the late Qing Dynasty, there have been many titles of "library gold foil", "Su Dachi", and "Tian Chijin". The color of the "Golden Foil" is red, the golden color is the best, and Zhang Zi is the largest, about three inches. The color of "Su Dachi" is yellow and poor in color. Zhang Zi is about two inch eight. The light color is called "Tian Chijin". The color is like gold and is actually called "Choosing Gold Foil" with silver. The Shangdai gold foil crafts unearthed from Sanxingdui and Jinsha are very representative, such as gold foil tiger, gold foil phoenix, gold foil frog decoration, gold foil fish decoration, etc.
The production process of gold foil generally go through twelve programs. They are: gold ratio, chemical bars, cakes, twisted, golden opening, dipping gold twist, golden opening, installing the pits, pits, thinning, issuing gold foil.
The gold foil has five major production bases internationally, namely China, Japan, Italy, Germany, Thailand, and the Japanese foil craftsmanship was passed on the time of Jianzhen East. The largest gold foil factory has now commissioned Nanjing Gold Foil Group to process. At present, all the gold foil factories such as Italy and Germany have been closed, so Nanjing, China is now the largest production center in the world. Although gold foil is a traditional crafts in my country, it has a history of more than 1700 years. It has the characteristics of thin cicada wings, pure color, uniform thickness, and long -lasting color. It is a symbol of wealth and gorgeous.
The production of gold foil is a gold bar with a gold content of 99.99%. After a special processing of a dozen procedures, that is, constantly beating, it becomes a gold foil. The thickness is less than 0.12 microns, which is thinner than a piece of paper. Gold foil can be edible (gold foil meal, gold foil wine, gold foil candy), can be used for cosmetics (beauty, anti -aging), making gold foil lines, and also used for high -end ink drawing formulas. At present Sewing surgery.
The 18K gold foil is a thin piece made of 18K gold hammer. His price of gold foil is calculated according to the square meter to calculate the price, about 1,200 yuan per square meter. For reference only!