At present, 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, colorful, and it is admirable, but the price is low. This effect must be attributed to its “glamorous” layer, eso es, 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: first, 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. Therefore, 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. Generally, 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. Generally, 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. En general. The durability of gold-clad jewelry is better than that of gold-plated ones.