Saat ini, there are many gold-encased jewelry imported from abroad. The appearance of this type of jewelry is exactly the same as that of gold jewelry. The gold is brilliant, berwarna-warni, and it is admirable, but the price is low. This effect must be attributed to its “glamor” lapisan, yaitu, the gold-clad layer.
Gold-coated jewelry refers to gold jewelry made by coating a thin layer of gold foil on non-gold metal jewelry. The process is roughly as follows: Pertama, hammer the gold flake into thin gold foil thinner than paper, clean the non-gold metal ornaments to be coated with gold, then wrap the gold foil made of the hammer on top of it, then heat it, use a tool to put The gold foil is firmly pressed against the jewelry.
The gold content of gold-clad jewelry is higher than that of gold-plated jewelry, which generally accounts for 2%-4% of the total weight of the jewelry. Karena itu, gold-clad jewelry is more expensive than gold-plated jewelry. The gold content of gold-clad jewelry is determined by the number of layers of gold foil wrapped. Umumnya, the number of gold-coated layers can be divided into one layer, two layers and three layers. Because the gold foil is very thin and has a certain degree of light transmission, the number of layers of gold foil wrapped can be judged according to the color of the gold-clad jewelry appearance. Umumnya, the gold-clad jewelry covered with a layer of gold foil has a light yellow surface; the one with two layers of gold foil has a positive yellow color; the one with three layers of gold foil has a deep yellow surface.
The quality of gold-clad jewelry depends on the number of gold-clad layers and the gold-clad process. The more layers of gold foil covered, the higher the gold content, and the better the quality. The gold-coated process refers to whether the gold foil and non-gold tires are completely enclosed and pressed firmly, and whether the seam of the gold foil is smooth and obvious. Secara umum. The durability of gold-clad jewelry is better than that of gold-plated ones.