What equipment do I need to open a plastic bag factory?

Buy material to do, you need a mixer, a single-screw extruder (supporting the mouth of the mold, to choose a good, related to the yield and the maximum diameter can be done), supporting the traction device and air compressor, air ring cooling device, such as the need to print the pattern but also a set of printing devices (want to print a solid pattern, it is best to add a corona, not much money), a large number of manufacturers of the above devices are complete sets of sales, which Jiangsu and Zhejiang Enterprises do better. Cut a bag machine (preferably fully automatic, save labor costs).