Development direction of post-press processing: diversification, high efficiency, and intelligence

Printing is a systematic project, which is mainly divided into three major processes: prepress, printing and postpress. Of course, advanced prepress and printing need to be matched with advanced postpress processing in order to produce high quality prints. According to the purpose of processing, the post-press processing of printed products can be classified into three categories: the processing of printed products for specific functions, the use of printed products for people's use, and the difference between different types of printed products due to their service images or purposes of use. Should have or strengthen a certain function, such as the printed product has moisture protection, wear resistance, corrosion protection and other protection functions, some printing products should have a specific function, such as stamps, introduction letter, etc. can be torn off, documents, forms Such as rewritable; the beautification of the printed surface of the print processing, such as in order to improve the gloss of the printing process for the printing or laminating, to improve the print three-dimensional impression of embossing and embossing processing; printing of the molding process, For example, the single-page printed matter can be cut to the design size, the binding size of the book, and the die-cutting and indentation processing of the packaged product.

At present, compared with the world's advanced level, there is still a big gap between China's post-press processing, mainly reflected in the relatively simple post-press processing technology, the working performance and automation of the equipment needs to be improved, and the stability, reliability, and quality of the equipment. The automatic detection and automatic control technology is basically still in its infancy. In response to the ever-changing printing market and the basic status quo of China's post-press processing, the 28-character guideline put forward by China clearly points out the direction of development of “multiple high-efficiency after printing”.

Diversification of process

The development of economy and the transformation of ideas have promoted the improvement of people's quality requirements for printed products: not only should they have exquisite design, real printing, but also reasonable post-press processing, so printers in order to better embody "print as realization The concept of “a means of service” diversifies the post-press processing as much as possible, including the diversification of surface finishes after printing, the diversification of bookbinding, and the diversification of packaging. The diversification of surface finishing refers to the improvement of printing products by adopting a wide range of printing finishing techniques, such as UV polishing, calendering, laminating, gluing, embossing, bronzing, punching, and spray printing. Luster, abrasion resistance, corrosion resistance and water resistance; books and bookbinding diversification means that printers use glue binding, binding, etc. to achieve the corresponding positioning and value-added printing products; the diversification of packaging and forming processes refers to the packaging products. In the processing, the combination of a variety of packaging molding processes, such as die-cutting indentation, bronzing, folding paste boxes, windowing, compounding, slitting, etc., to meet the needs of the rapid growth of the packaging market, variety, high quality, short-term cycle. In short, the diversification of post-press processing can not only effectively achieve the exquisite processing of printed products, but also greatly enhance the value-added service capabilities of printers.

High efficiency after printing

Postpress automation refers to the widespread adoption of automated and continuous processes and equipment, gradually changing the backward conditions of manual and semi-mechanized production, fundamentally improving the quality of final products and production efficiency, and striving to achieve the general level of advanced countries. With respect to bookbinding, through the extensive use of automated, continuous production of high-level folding, collation, locking, binding, cutting, packaging and other equipment, improve work efficiency and improve the appearance and internal quality of books and products. In terms of packaging and surface finishing, printers try to make the printing and post-printing processes (such as light, die cutting, etc.) to be produced on-line efficiently. This can reduce the time required to move the prints and improve the production efficiency. It can realize the unification of the precision of on-line printing products and ensure the accuracy of printing processing. In addition, it also reduces the number of required staff and saves labor costs.

Intelligent equipment

In recent years, the development and application of digital technology has revolutionized the printing industry. Not only has it been reflected in prepress and printing processes, but it has also reacted in postpress processing. The printing equipment manufacturers have invested in unprecedented confidence and strength in the emphasis on post-press processing equipment and intelligent research while paying attention to the development of prepress and printing equipment. For example, Heidelberg clearly defined the post-press department as an independent in the strategic adjustment. The entity is responsible for the development of various businesses in India. Coupled with the printing industry under the direction of CIP4, the introduction and application of workflow, as one of the three major processes in the entire process of postpress, there is no reason not to achieve intelligence, otherwise it will not be consistent with prepress, printing, Correspondingly, work efficiency will be reduced, and the quality of printed products cannot be guaranteed. Therefore, the intelligentization of post-press processing equipment is also a future development direction of post-press processing.