how to make the gold foil leaf

We are talking about the gold foil,and how to work of it, today we will talking about how to make these gold foil.

Category
Gold foil has the distinction of "red gold" and "gold". Since the late Qing Dynasty, it has been called "Kujin", "Su Da Chi" and "Tian Chjin". "Library gold foil" color is red, gold is the best, Zhang Zi is the largest, about three inches square. "Su Da Chi" color is positive yellow, the color is poor, Zhang Zi about two inches by eight square. The light and white ones are called "Tian Chijin", and the ones that look like gold but are actually smoked with silver are called "choose gold leaf". Gold leaf artifacts unearthed in Sanxingdui and Jinsha of Sichuan Province are very representative of the Shang Dynasty, such as gold leaf tiger, gold leaf phoenix, gold leaf frog ornaments, gold leaf fish ornaments, etc.

Technology
The process of making gold foil usually goes through twelve procedures. They are: gold ratio, gold bars, patting leaves, doing Nianzi, falling gold Kaizi, dipping gold Nianzi, playing gold Kaizi, installing Kaizi, Kang pit, playing fine, issuing, cutting gold foil.
Gold ratio: Take out raw gold from the vault, make the ratio according to the special requirements of product varieties, and add the quantitative proportion of silver and copper elements to make it meet the required gold content.
Gold bar: the ratio of good gold into the crucible through high temperature melting into gold water, so that the added trace silver, copper elements evenly into the slag precipitation, the gold water into the measurement of iron trough cooling, so that it becomes gold bars.

Patting: Cutting paper-thin gold leaves from thick gold bars that are manually beaten into thin gold strips.

Making Nianzi: Gold leaves are cut into small 1cm square gold leaves with bamboo knives. This size of gold leaves is called gold Nianzi.

Fall gold Kaizi: 10 cm square Wujin paper into the thermostat for heating, for the next process after loading the gold nianzi can make the gold rapid extension.

Gold-dipped Nianzi: Put the gold nianzi into a 10cm square paper bag with the fingertips. Two pieces of paper have a gold Nianzi, with a total of 2048 layers. All the gold Nianzi are required to be put into the center of the paper.

Punching gold: The paper bag with gold twist is placed on the foil machine and beaten to make the paper-thin gold twist even thinner and more open.

Pack open son: has been in 10 cm square Wujin paper bag to be opened in the gold Nianzi called "Jin Kaizi", need to continue to beat into foil, the "Jin Kaizi" carefully with goose feather while the mouth wind picked up into 20 cm square Wujin paper bag (commonly known as Jia Sheng), this process called pack open son.

Cutting gold leaf: Cutting gold leaf into regular shapes with a bamboo knife is called cutting foil.

Packaging: According to the purpose of the production of gold foil to meet the requirements of packaging.