What kind of plastic packaging printing methods are there?

As is known to all, plastic bags, are generally in all kinds of plastic film printing, and then with the barrier layer and heat sealing layer composite membrane, by cutting, bag packaging products. Among them, the plastic packaging printing is indispensable key process in production process. Therefore, understanding and control of printing method is the key to the quality of the bag. So what kind of plastic packaging printing methods are there? Plastic packaging printing method: 1, intaglio printing, gravure printing plastic film mainly, used in the manufacture of all kinds of plastic bags, etc. 2, letterpress printing, letterpress printing mainly for flexographic printing, widely used in all kinds of plastic bags, composite bags and plastic packaging printing. 3, screen printing, silk screen printing is mainly used for all kinds of plastic film printing and have molding container, and can also be printing transfer printing material, used for transfer printing graphic on special shape container. 4, special printing, special printing plastic bags is different from the traditional way of printing other printed, including inkjet printing, gold and silver ink printing, barcode printing, crystal printing, magnetic printing, pearl printing, hot stamping, electrochemical aluminum, etc. About what kinds of plastic packaging printing method has this problem, today small make up to introduce here. Different methods of plastic packaging printing, the effect of the printed is different also, therefore, we can according to the actual situation to choose suitable printing method.