10 kinds of screen mesh
1. Natural Silk mesh
Natural Silk mesh is the earliest used in screen printing plate, screen printing technology in the past some of the books often called it tulle, natural tulle, natural silk mesh , raw silk screen mesh.
Natural Silk mesh is characterized by: water resistance, with a certain degree of hygroscopicity, and sensitive adhesive or photosensitive film with good flexibility, general flexibility, easy stretching, easy plate-making operations. However, the silk screen has poor abrasion resistance, poor chemical resistance, easy aging and brittleness, smaller stretch tension value and higher cost.
At present, silk screen printing plate production, the Natural Silk mesh has been mostly replaced by synthetic fiber mesh, the amount of very little.
2. Nylon screen mesh
Nylon mesh, also known as nylon monofilament knit, woven into heat resistance, dimensional stability. Plain up to 380 mesh, twill weave greater than 330 mesh.
Nylon mesh has the following characteristics: Nylon mesh surface is smooth, the ink through the good, you can use the viscosity and particle size of the ink, so you can get a fine print design; Use fine mesh wire mesh, suitable for thin lines Painting patterns and printing outlets; flexible, with appropriate flexibility, good adaptability of the substrate, suitable for printing bump and surface; tensile strength, knuckle fastness, flexibility and abrasion resistance, long life ; Acid, chemicals and organic solvents, good performance, renewable easy to use, especially for alkali is extremely strong resistance.
Nylon mesh should be noted that the following points: Nylon mesh and polyester, silk screen compared to its elongation, in order not to cause a printing failure, to increase the stretch tension, then shrinking force will be larger, So require the use of strong strength of the mesh of frames and Stretching Machine; because of its low heat resistance, if the hot-melt method will be fixed in the frame on the mesh, from the operational point of view is difficult; intolerance of acid, carbolic acid, cresol , Formic acid and other erosion; a slight impact on its ultraviolet light, take care to avoid the light custody.
3. Polyester screen mesh
Polyester mesh, also known as ester screen mesh.
Polyester screen mesh has the following characteristics: Tensile elongation is small, flexible, single-wire screen for printing integrated circuits, thick film semiconductors, scale board, counting board and other high-precision printed matter; tensile strength, structural strength, resilience and resistance India are better; has sufficient resistance to chemicals, especially acid-resistant, organic solvents and strong resistance, and renewable as nylon; hygroscopicity is low, almost no humidity; heat-resistant than nylon to High; less affected by UV than nylon.
Use should pay attention to the following points: Polyester mesh size stability, suitable for high-precision printing, so more than nylon mesh need to have a greater tension, need stronger frames, stretching machine and more Strong adhesion method; Because polyester is hydrophobic, it is difficult to bond with the plate film. Pay attention to the cleaning and degreasing before plate making. Although hygroscopicity is low, it is not able to resist boiling water of long time. Nylon slightly worse; Impatience alkali erosion.
4. Stainless steel mesh
Stainless steel mesh plane stability is excellent, the production of graphic size stability, suitable for printing high-precision circuit boards and other products; Excellent ink through the performance; good alkali resistance and tensile strength; good chemical resistance; heat-resistant Strong, suitable for hot melt printed material (in the wire on the heating of the printed material melting) printing. The disadvantage is: susceptible to twists and turns and damage to the external, easy to press during the printing process to relax the mesh, affecting India capacity, expensive, high cost.
5. Nickel-plated polyester mesh
The nickel-plated polyester mesh is made by coating a layer of nickel with a thickness of about 2 to 5 μm on the polyester web. It combines the metal mesh and polyester mesh both long to produce high tension and low elongation of the screen to avoid the metal mesh due to fatigue caused by the relaxation and the poor adhesion of polyester and film version of the ills, Wear resistance, electrical conductivity and resilience have improved. Therefore, the applicability of this web is very wide. This kind of mesh weave knot is fixed by nickel plating, the mesh is not easy to deform when printing, the flow of ink is unobstructed, the ink layer thickness is even printed.
The disadvantage of this type of mesh is the need for release of oxidizing liquid to be less resistant; the price is higher than the polyester mesh, but cheap in stainless steel wire mesh.
6. Flatten screen mesh
Flatten screen mesh is made by flattening the screen side. This screen can make the amount of ink transfer less ink thinning, and prevent ink from infiltration, flow, especially for UV-curable inks. Flatten the screen thickness, the opening will be smaller because of flattening, so only a small amount of ink can be printed. Flattening the screen to improve ink printability, reduce the amount of ink and save ink are very beneficial. Due to the flattening of the cross-sectional shape of the screen deformation, some people think that because of this deformation, will reduce the scraper wear and tear, improve ink pemeshration and protect the film.
7. Anti-static screen mesh
The use of nylon, polyester and other synthetic fibers woven into the screen easy to bring static electricity, is a big drawback. Although there are a variety of methods to prevent charging, but are not perfect, especially in the dry, some substrates can not be completely removed static electricity. Anti-static screen mesh To make the horizontal line has conductivity, the core contains carbon fine wire, the elimination of static electricity is very good.
8 . silk screen mesh with color
In the screen printing plate making process exposure, often have halo phenomenon, the unnecessary reflection of light will cause exposure defects.
The reason for this phenomenon comes from the disorderly reflection of the wire as the screen material. Therefore, as long as irregular reflection is avoided and irregular reflection light is absorbed, a colored mesh is generally used.
Exposure generally uses UV light, but also mixed with visible light. Dyeing screen color to light as well, dark to extend the exposure time.
9. Nickel foil perforated mesh
Nickel foil perforated mesh is a high-tech screen. It is not woven mesh, but the foil mesh, which is made of nickel foil drilling, the hole was hexagonal, can also be made by electrolytic forming round hole shape. The entire mesh surface is even and thin, which can greatly improve the stability and precision of imprinting, and is used for printing high-tech products such as conductive ink, chip and integrated circuit. Can distinguish 0.1mm circuit line spacing, positioning accuracy of up to 0.01mm.
10.. Striped steel mesh
This is a stainless steel wire for the lack of flexibility of the shortcomings of the design of a mesh, that is, around the stencil with a special elastic material inlaid with a flexible edge, the image is located in the range of steel stencil.
WUXI JINFENG SILKSCREEN MESH MANUFACTURING CO., LTD.
Since 1996, as professional we manufacture high quality meshes at best price!
Address: Jinxin industrial zone, xibei town, wuxi city, jiangsu province, China 214194
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