| 摘要 |
This invention belongs to the screen process printing field, disclosing the tinplate cylindrical can screen printing technology, that is, prepare the screen first and then carry out the screen printing with pneumatic cylindrical screen printer of high accuracy; The said screen workpieces' periphery are elongated by 3 mm and the said 3 mm range are respectively made into gradient screentone of 50%, 35% and 15% at the screen trail, being the connection for the screen printing. The said screen is coated with UV curable varnish, which is mainly made from the following components based on the weight proportion: acrylic mixed resin, 70%; acrylic mixed monomer, 20%, mixed photosensitizer, 4%-8%; and organic siloxane, the adjuvant, 2%-6%. The room temperature for blending UV curable varnish ranges from 23° C. to 33° C. The purpose of this invention is to provide a technology with high transparency, smooth workpiece surface and free of any added textures. |
