"Tang Liu Dian" records a total of 14 kinds of gold used at that time, among which "nianjin" and "weaving gold" were used for weaving. During the Song and Yuan Dynasties, a large number of fabrics using metallic yarn appeared, such as "nianjinfan satin", "weaving gold silk" and "nashishi".



The Ming Dynasty's "Tian Gong Kai Wu" records the manufacturing process of traditional metallic yarn in detail. Traditional metallic yarn is divided into two categories: flat gold wire (or sheet gold) and round gold wire (or nianjin). The gold foil is glued to the paper and then cut into narrow strips of about 0.5 mm to form a flat gold wire. The flat gold wire is spirally wrapped around cotton yarn or silk thread to form a round gold wire.
Today, some traditional gao-grade fabrics such as Chinese brocade and Japan's Nishijin still use traditional metallic yarns. The chemical fiber film metallic yarn developed since the 1940s is made of two layers of butyl acetate cellulose film sandwiched with a layer of aluminum foil and then cut into thin strips.



Later, polyester metallic yarn was produced. It is vacuum-coated polyester film, coated with colorless or colored transparent paint, or laminated with vacuum-coated polyester film and non-aluminized polyester film, and then cut into flat filaments with different Color coatings can be made into two-color metallic yarn or multicolored metallic yarn. It can also be made into rainbow lines, fluorescent lines, etc. through special processes.



The use of metallic yarns can give fabrics a rich and luxurious style. Metallic yarn requires uniform fineness, bright color, good color fastness, high strength, no knife marks, acid and alkali resistance, soaping resistance, and friction resistance.



metallic yarn: http://shjdgroup.com/product-details?product_id=4

Tel: 86 574 87739182 Address: 21F,No.168,Baizhang Road,Jiangdong district,Ningbo,China