When the original, color separation, screening, printing paper and other factors have reached high standards, the printing link is the key to restore the color and graphic content.
UV printing technology is widely used in the production of high-grade prints. Its biggest advantage is that instant curing of ink dots can be achieved. In multi-color printing, especially in online printing with more than 6 colors, high ink transfer rates can be achieved. Saturated colors can also avoid smudging and adapt to shorter delivery times. The most important point is that the dusting step is removed, so that the final product is highly clean. When reading a page, it can be as delicate and smooth as a white paper, and it will not feel astringent like an ordinary print. These outstanding advantages are the reasons why UV printing technology is favored by people and the technical foundation for creating high-level prints. In addition, scented ink printing technology has also been applied to advertising prints of some premium cosmetics and luxury cars.
Although rotary presses can achieve higher production speeds, up to 50,000 rpm will reduce the ink transfer effect, and paper creases caused by heating and drying will also reduce print quality, so the true high-end prints are all the same Both use sheetfed printers. On the one hand, these high-grade prints are unlikely to meet the demand for ordinary prints. On the other hand, they ensure the reduction of images and images.
Finishing
Only these are not enough, the top prints will generally be partially or completely polished on the key graphics, to increase the protection of the graphic ink layer, improve reading durability, and also can play a beautiful role. Currently used on-line UV coating process is widely used. On-line UV coating based on offset printing principle can achieve high flatness and high-definition outline edge, and it has unique advantages in overprinting accuracy, compared with the effect of offline UV coating commonly used in domestic screen printing technology. There can be a world of difference.
Online hot stamping process application is essential. The role of hot stamping in the binding itself is the finishing touch, highlighting the essence of the body, and the online hot stamping is not only highly efficient, but also can effectively ensure the overlay accuracy. The laminating film generally adopts the precoating film cold laminating technology. On the one hand, it conforms to the environmental protection requirements; on the other hand, it also avoids the strong odor caused by the traditional laminating technology.
Binding processing
From the product form point of view, the binding of these high-grade prints is nothing more than bookbinding, hardcovering and saddle stitching. There is nothing special in the form, but the quality is reflected in the details, such as the accuracy of the folding, the error of the drawing, and the basis Accurately calculated page creep compensation for paper thickness and number of folded pages (of course, this is pre-set at prepress), and the glue formula selected according to the type of paper to ensure long-term firmness of printed products; consider carefully The convenience of the target readers for archiving after reading, saddle-stitched and rubber-bound printed matter plus U-nails for easy collection in international standard two-hole folders, etc.
The entire production process and technology of high-end commercial advertising prints in developed countries has condensed almost all the advanced technologies in the world's printing industry. Due to multiple restrictions on the cost of technology introduction and the degree of support for various process links, at present, there are not many printed materials with these comprehensive capabilities and technologies at home. Chinese printing companies must participate in the international market competition, they must continue to learn and draw on the technical content of high-grade prints, adopt cutting-edge printing technology, continuously improve product quality, and increase added value, which is also the overall direction of the development of domestic printing enterprises. .