There are many manufacturers of screen printing meshs in the market, and customers do not know which specifications to choose. Mesh yarns are available in a wide variety of materials. Net yarn is very important when printing. We can choose the number of meshes according to the printing requirements of our products.
About the mesh number of screen printing meshs: the mesh number refers to the specifications of the screen and the size of the mesh holes, which means how many holes there are in a length of 1 inch or 25.4mm, that is, how many meshes.
About weaving methods of screen printing meshs: plain weaving and diagonal weaving. Net yarn is made of cotton yarn, the printing quality of the veil is not good, and the resolution is poor. It is rarely used now.
Single yarn Polyester mesh yarn: suitable for general screen printing factories, clothing printing factories, handbag screen printing, plexiglass, plastic panel and other screen printing. Polyester mesh is also made of chemical synthetic fibers and belongs to the polyester system. Polyester mesh has the advantages of solvent resistance, high temperature resistance, water resistance, and chemical resistance. When polyester mesh is subjected to external pressure, its physical properties are stable and its stretchability is small. The disadvantage is that it has poor abrasion resistance com
pared to nylon mesh. In addition to the advantages of nylon screen printing, polyester meshs are also suitable for printing printed circuit boards that require high dimensional accuracy.
Nylon mesh yarn: It is made of chemical synthetic fiber and belongs to polyamide series. Nylon wire mesh has high strength, good abrasion resistance, chemical resistance, water resistance, and elasticity. Because the wire diameter is uniform and the surface is smooth, the ink's passability is also excellent. The disadvantage is that the stretchability of nylon mesh is large. The tension of this kind of screen is reduced for a period of time after the screen is stretched, which makes the screen printing plate loose and reduces the accuracy. Therefore, it is not suitable to print circuit boards with high dimensional accuracy.
In conclusion, when we choose a printing mesh, we need to choose according to our actual needs. The main ones are polyester and nylon.
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