A Brief Introduction to "Sweeping Gold Technology" in Special Printing Process of Fine Print

What is sweep money? Sweeping gold is a special process in fine prints. Special metal powders are attached to designated parts of commodity packaging or label prints to realize gold glitter effect.

How to sweep gold? After multi-color printing production, gold-plated prints are obtained, and the printed sheets that need to be swept into fine prints are transferred to a monochrome or two-color offset printing press. The adhesive-backed ink is printed on the parts that need to be swept gold, and then transferred directly. To the sweeper, the special gold powder was pressed into the primer to complete the sweep. If a printing manufacturer owns a multi-color printing press and a UV drying device, on-line gold scanning can be performed. That is, the printing sheet is printed in the first few color groups of the multi-color printing machine and fully dried by the UV device, and then at the end A color set is coated with a sticky ink, and then connected to a gold sweeper to perform gold scan. In the above situations, when no sweep is needed, the gold sweeping equipment can be separated from the printing press within a few minutes, so that the printing press can be printed normally.

Scanning gold has unique advantages when compared with other fine printing techniques. As a widely used process, printing gold and gilding have many advantages, but there are also some deficiencies. For example, the gravure printing machine has a high printing speed, but the deformation is relatively serious when printing small characters and thin lines, and the metal texture is not strong enough when printing large areas of gold; gilding, as a traditional process, has a strong sense of metal, but its energy consumption is relatively high. High, relatively low efficiency, registration is difficult, very small graphics and a large area of ​​bronzing, the quality is not easy to control; and sweeping gold technology, operation is relatively simple, high production speed, low cost, and regardless of the pattern thickness, The area size can get finer results. At the same time, there is no environmental pollution due to the fully enclosed working method. In fact, the combination of gold sweeping and gilding can often achieve better results.

In foreign countries, many printing companies use multiple shifts to make full use of new sweepers and have achieved significant economic benefits. In China, compared with other fine print technologies, the possession of sweepers is relatively small and there is little market competition. Therefore, the pressure on the market price is very small, together with the unique anti-counterfeiting effect and advertising effect of the gold sweep product, enabling the customer to accept a certain range of price differences; in addition to the relatively low cost of sweeps. Therefore, printing manufacturers can obtain higher profits.

Currently, the only company in the world that manufactures automatic sweepers is the Dreissig company based in Germany. Its latest model 2500 sweeper has passed the rigorous inspection of official agencies and obtained CE safety certification. At present, it has been widely used throughout the world, especially in cigarettes, cigars packaging, cosmetics, chocolate packaging and liquor and other trademark printing and invitation card products have its dazzling advertising effects. The equipment is now introduced to China by Jiuheng Printing and Packaging Equipment Company, a subsidiary of Sanjiu Group, and will push China's packaging printing to a new level.

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