Glass screen printing, is to use silk screen printing, the use of glass glaze, decorative printing on the glass.Glass glaze is also called glass printing ink, glass printing material, it is by the coloring material, links mixture and stir paste printing material.Coloring material by inorganic pigments, low melting flux (lead glass powder);Link is commonly known as for suet in glass screen printing industry.After printing glass products, to put in the furnace, in the temperature of 520 ~ 600 ℃ fire, printed on the surface of glass glaze on the glass to consolidation, form the colorful decorative pattern.If the screen printing and other processing methods and use of words, will give a more ideal result.For example, using methods such as polishing, engraving, corrosion in printing before or after processing was carried out on the glass surface, able to improve the effect of printing double.
Silk screen printing process
Glass screen printing process according to the principle of silk screen printing, printing ink to the surface of the glass, and then USES the ink curing measures, the patterns of the printed solid durable.The process is as follows: tension net to sizing, drying and dry plate burning - development - left flat glass cutting - edge grinding and dry cleaning - printing left sintering 1.Suitable for printing glass cutting glass according to user requirements, can be rules shape, also can be irregular shape, and then pour edge grinding, cleaning, drying.Should pay special attention to here, the glass surface can not have water.2.The choice of screen glass printed with silk screen printing plate with general screen plate, glass plate choose synthetic fiber mesh, stainless steel wire mesh, natural fiber mesh.When general pigment printing, the screen, generally choose cheap synthetic fiber mesh;As the gold and silver decoration, cannot choose stainless steel wire mesh.Silk screen of the specifications of the commonly used 270 ~ 300 mesh.3.Screen frame choice is more formal and less deformation of net frame is aluminum alloy net frame, its size should be bigger than design, the outside part of the specific size should be design from net frame should be between 70 ~ 100 mm.Additional selection screen frame, its strength is very important, the key is a horizontal rigid enough.4.Stretch mesh chose the wire mesh and mesh frame, combine the two, this is stretched.There are a number of ways for tension net, can use manual, motor, pneumatic ways, the current is relatively advanced, can stretch quality net version of the machine is pneumatic tension network.Tension network requirement is uniform tension, network geographic remain vertical, sticky glue is strong, can't slack.
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