My country's annual imported wire mesh has reached more than 1 million m2, and the imported products are mainly polyester wire mesh and nylon wire mesh of more than 270 mesh. High-density wire mesh with high technical content, high-strength and low-elongation wire mesh, anti-static wire mesh, calendering and other specially treated wire mesh, and polyester high-mesh wire mesh all need to be imported.
Domestic polyester wire mesh and nylon wire mesh have good sales, and a small amount of polyester wire mesh is still exported. However, the types and specifications of domestic wire mesh are too few, and high-quality, high-mesh, and wide-width wire mesh needs to be developed.
A new type of non-woven wire mesh has been developed abroad. This wire mesh overcomes the trouble of applying photosensitive tape at the junction of the warp and weft lines of traditional wire mesh. Modern advanced ultra-fine graphic screen printing, fine-level screen printing, high-precision positioning screen printing, special ink quantitative screen printing and large-scale color tone screen printing, etc., all put forward higher requirements for the screens used: such as high strength , low elongation change rate, repeatability, consistency, long service life, etc.; such as printed electronic micro components, integrated circuits, multi-layer printed circuits, fluorescent digital displays, aerospace instrument flat panel displays and other high-tech products; such as Internet time Some screen printing requires antistatic, metallization, physical, chemical treatment or screens made of special materials.
The sophistication of printed circuit boards and electronic components is obvious, requiring high accuracy in size and position. In addition to the past types of wire mesh such as polyester, polyamide, and stainless steel, there are also mesh yarns with high tensile strength polyester as the yarn core and polyamide as the core sheath. Made of polypropylene fiber, the mesh is 330 mesh, the wire diameter and longitude are 23μm, and the interweaving is 36μm. It can achieve high tension. It is truly an epoch-making wire mesh. Furthermore, in order to meet the requirements for precision, these meshes undergo various treatments such as plasma treatment, metal evaporation, and polishing.