Printing factory printing electroplating metal sign

Printing factory introduction screen printing electroplating metal plates metal plates is one of the many signs factory production products. Solemnly, mainly metal materials, it requires clear, adornment sex is strong. In traditional metal metal signs, especially for brass, corrosion word, note - - - - - - - > printing factory introduction screen printing electroplating metal plates metal plates is one of the many signs factory production products. Solemnly, mainly metal materials, it requires clear, adornment sex is strong. In traditional metal metal signs, especially for brass, corrosion word, note the black paint of square metal labelzui is common. Constantly changing as people aesthetic point of view, the gradual development of commodity economy, the quality of metal plate also has a new different requirements. Screen printing technology is introduced because of the sign industry, not only promoted the development of printing technology, but also to sign industry provides a technology to develop new products. Screen printing new plating metal plates is plates plating of legal system, the combination of the screen printing process. Its basic method is the spiral pattern, legal system on the copper plate with screen printing ink layer of protection cover without shape parts, bare copper graphical parts for copper, nickel, chromium system electricity: plating, to mechanical plastic protection. (1) process. This process involves the electroplating, printing, copper plate processing and spray paint and metal processing technology, so the content is more, the general process is as follows: copper plate blanking to prepress processing, check check to silk screen printing plate making, silk screen printing - drying - plating pretreatment and electroplating nickel - cleaning - plating chromium layer - > clean dry - > Out of print material to plastic welding frame, spray the paint coat - inspection factory (2) the main technological procedures. Screen printing. Selection of more than 150 mesh nylon or polyester yarn network. Use direct photographic system,; Version of the method, the number of diazo photosensitive glue coated more is better, so that can be gained when printing, thicker protective ink film. Print shop for 1000 w metal halide lamp, lamp exposure 45 mm oh ~ 5 minutes. Printed material is resistant plating ink. PVC silk screen printing factory to introduce the principle of main have those? PVC silk screen consists of the five elements, namely, screen plate, scraping scraping plate, printing ink, printing machine, and substrates. Silk screen printing basic principle is: use silk screen printing ink plate picture and text part of the mesh, the graphic part of the mesh is not through the basic principle of ink to print. In silk screen printing on the plate at one end into the ink, scrape printing scraper ink on silk screen printing position a certain pressure, moving in silk screen plate at the other end at the same time. Ink scraper in moving from the graphic part of the mesh extrusion on the substrates. Due to the effect of viscosity of the ink fixation within a certain range, and make the mark scraper is always in the process of printing and silk screen printing and printing substrates in line contact, the contact line with scraper and movement, due to silk screen printing plate and keep some space between the substrates, makes the screen plate through own tension when printing and reaction of scraper, the reaction is called elastic back.

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