Packaging Printing Methods of Plastic Film Printing

We usually say that packaging printing, including color box printing, carton printing, label printing, bag printing, bottle printing, different products have the most suitable printing method. Flexographic, offset, gravure and screen printing are among the world's four most popular printing methods, each with its own characteristics.

Flexo printing has evolved from letterpress printing, a direct printing method known as flexographic printing due to the use of elastic, raised image plates. The flexographic plate is glued to the plate cylinder and the plate is supplied by an engraved metal anilox roll.

Offset printing is a kind of lithography. It is very simple to say that offset printing is the printing method of transferring the graphic on the printing plate to the printing substrate by means of rubber (blank), that is, there are three rollers (printing plate, blanket, embossing). The lithographic method is called offset printing in the south of China.

The gravure printing ink is full and full of three-dimensional, the graphic has a convexity, and the layers are rich, the lines are clear, the high quality printing plate has a long service life, and is suitable for mass printing. Gravure can print extremely thin materials such as plastic films.