For customized products of plastic packaging bags, printing is required in the production process. What is the printing process?

Before printing, manufacture and color separation plate making. Color separation plate making requires white plate for backing and corresponding color plate. This operation can be carried out in the electronic engraving system, or it can be planned in the prepress planning system, and then the printing plate can be directly carved on the electronic engraving machine. When printing on the unit printer, the detailed process is plate loading, ink scraping knife, ink preparation, ink adjustment, roll up, ink test, conditioning and formal printing. The film covering in the plastic packaging bag is carried out on a special film covering machine.

In the later stage of manufacturing plastic packaging bags, it is necessary to make bags. In fact, it is bonding. Two layers of films are bonded to form a three-sided sealed plastic bag and cut into a single bag.