Hiện tại, có nhiều đồ trang sức bọc vàng được nhập khẩu từ nước ngoài. Hình dáng bên ngoài của loại trang sức này giống hệt với trang sức bằng vàng. Vàng thật rực rỡ, đầy màu sắc, và thật đáng ngưỡng mộ, nhưng giá thấp. Hiệu ứng này phải được quy cho “quyến rũ” lớp, đó là, lớp mạ vàng.
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: Đầu tiên, 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. Vì thế, 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. Nói chung là, 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. Nói chung là, 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. Nói chung. The durability of gold-clad jewelry is better than that of gold-plated ones.