CTP plate making technology and digital printing machines are the results of computer technology infiltrating the printing industry. Efficient omni-directional scanning technology instantly converts originals into plates. It also has the advantages of network point expansion control, consistency of dot density on the whole page, elimination of artifacts caused by manual work, short printing preparation time, and ease of transmission and storage. The digital press under the control of the same program can quickly work as required. Printing on-demand platemaking and printing plate (or plate cylinder) transfer to the substrate can be achieved. The problem lies in the post-press processing that still maintains its original appearance.
Post-press processing is divided into two aspects: printed surface finishing finishing and print classification combined binding.
As a finishing finishing technology, the surface finishes are covered (bright, matt), glazed (whole or partial, bright or matt), die-cut, creasing, and anodized aluminum.
As a combination of print and bookbinding technologies, there are book and book binding, saddle stitching, wireless glue binding, and perfect binding; there are also reinforcements for packaging boxes and boxes (adhesive coated paper, honeycomb paper, board paper, moisture, and oil , light protection, barrier materials, and adhesive molding.
As a conventional technique for finish finishing of printed surfaces after lamination, coating and glazing, the process consists mainly of coating or glazing of randomly coated adhesives, glazing coatings. It is easy to produce pollution caused by the volatilization of organic solvents during production, and the resulting health damage and sudden fires of production personnel. The products produced often have new quality problems such as poor adhesion, color change, and odor migration.
Low-quality bookbinding technology continues to be adopted in underdeveloped countries. The imported rubber binding linkage equipment cannot operate normally in these areas. Not only does it cause a huge amount of investment waste, but bound books also have problems such as bulk loose racks, dropped pages, and difficult to read.