Post-print processing of printed materials mainly refers to surface finishing, binding technology and other processing methods in order to improve the compression resistance, water resistance and sealing or environmental protection performance of printed materials. The post-printing process in the industry refers to the surface decoration of printed matter as the main direction. Generally speaking, the post-printing process (hereinafter referred to as the printing process or process) mainly refers to a series of processing steps after the substrate is printed  such as Cutting, embossing, embossing, creasing, bronzing, laminating, folding, punching, glazing, laminating, die cutting, binding, packaging, etc. Widely used in paper box .

Excellent printed matter must add points to the packaged goods it carries, and add value to the product. It must have the following basic conditions: creative design, suitable printing carrier, accurate printing color reproduction, detailed post-press processing, and printing. The post-press process can be regarded as two processing techniques in the process of printing finished products. For example, the conception, topic selection, and creation of calligraphy and painting works are the main processes, but there are still many processes before going to market. It needs to be completed after professional installation. The printing process is also a very important process for printed paper box.

Post-press processing technology is more complicated than the printing process because of the wide range of equipment, materials and technologies involved, from simple cutting and binding, common bump embossing or hot stamping gold foil processes, to complex profile die cutting and advanced digital control. Optical fiber cutting, etc., the post-printing process has exceeded the scope of the narrow printing itself, providing designers and printing technologists engaged in the printing book and paper packaging design industry