Packaging printing production process

Printing is divided into three stages:

Pre press ->refers to the pre printing work, generally including photography, design, production, typesetting, output film proofing, etc;

During printing, it refers to the process of producing finished products through a printing machine during the middle stage of printing;

Post press ->refers to the post printing work, which generally refers to the post-processing of printed materials, including gluing (lamination), UV coating, oil coating, beer, hot stamping, embossing, laminating, etc. It is mostly used for packaging printed materials.

Printing is a technology that replicates the graphic and textual information of the original manuscript. Its major feature is the ability to reproduce a large amount of graphic and textual information on various substrates in an economical manner. It can be said that the finished product can also be widely circulated and preserved, which is incomparable to other replication technologies such as movies, television, and photography.

The production of printed materials generally involves five process steps: selection or design of the original manuscript, original plate production, plate drying, printing, and post-press processing. That is to say, first select or design a suitable original for printing, then process the graphic and textual information of the original to create an original plate (usually called a positive or negative image film) for printing or engraving, then use the original plate to make a printing plate for printing, install the plate on the printing machine, use an ink transfer system to apply ink to the surface of the plate, and apply pressure mechanically to transfer the ink from the plate to the substrate, Such a large number of copies, after being processed, become finished products suitable for various purposes. Nowadays, people often refer to the design of the original manuscript, processing of graphic and textual information, and plate making as prepress processing, while the process of transferring ink from the plate to the substrate is called printing. The completion of such a printed product requires processes such as prepress processing, printing, and post-press processing.