The screen printing process of glass is based on the principle of screen printing, printing ink onto the surface of the glass, and then using the curing measures of the ink, the printed pattern is firm and durable. The process is as follows: stretching net → sizing → drying → printing → development → drying → flat glass → cutting → edging → cleaning and drying → printing → sintering
1. Glass suitable for printing Cut glass according to user's requirements, it can be regular shape or irregular shape, then be edged and ground, then cleaned and dried for use. Special care should be taken here that there should be no water marks on the glass surface.
2. Screen Selection The screen printing plate for glass printing is the same as the general screen printing plate. The glass screen printing plate is made of synthetic fiber mesh, stainless steel wire mesh and natural fiber mesh. When printing general color materials, the above-mentioned screens can be used, generally using inexpensive synthetic fiber mesh; when used as gold and silver decoration, stainless steel wire mesh cannot be selected. The specifications of the wire mesh are generally 200 to 250 mesh.
3. The selection of the frame is relatively regular, and the frame that is not deformed is an aluminum alloy frame. Its size should be larger than the pattern. The specific size should be that the outer edge of the pattern should be between 70 and 100 mm from the frame. In addition to selecting the frame, its strength is very important, the key is that the rigidity in the horizontal direction is sufficient.
4. The netting selects the screen and the net frame to combine the two. This is the stretch net. There are many ways to stretch the net. It can be manually, maneuvered or pneumatic. At present, the more advanced, high-quality screen version is a pneumatic stretcher. The requirement of the stretch net is that the tension is uniform, the web warp and weft are kept vertical, and the adhesive mesh is firm and cannot be slack.