What are the special processes of printing industry? Printing technology itself is a high-tech process, with the continuous development and improvement of modernization, printing technology of course also needs to move forward steadily. Printing technology should not only go ahead in the direction of environmental protection, but also in the direction of digitalization and informatization, which is not an easy task. Printing, which used to be an old term, will be a technical field that requires continuous and long-term learning for every relevant practitioner today.
Now let me briefly introduce the special technology of the printing plant. First of all, I would like to introduce pearlescent printing, which is a special printing technology using pearlescent ink. Because the pearlescent ink has the natural luster of mussel pearl, the packaging printing products show colorful colors like jewelry gas, which appears noble and elegant. Pearl printing process can be lithographic printing, relief printing, gravure printing or flexographic printing, or screen printing. Because different printing methods should be based on the characteristics of the process, reasonable selection of pearlescent inks with different particle sizes of pigments, such as relief printing process can choose pearlescent inks with coarse particle sizes. Pearlescent prints have good surface gloss and smoothness, which can show a good effect of printing. In our daily life, we can see some aromatic prints, such as business cards, greeting cards and packaging products, which are printed with perfume ink. In this process, spices can be directly added to the ink and printed by embossing, flexographic and offset press. The method is simple, but the fragrance is difficult to preserve for a long time. Nowadays, perfume inks sealed in capsules are mostly used for printing. This way of printing, because the perfume is rubbed and broken by microcapsules, emits fragrance slowly and can be preserved for a long time. Isn't it amazing? Finally, let me talk about Decal printing, which is achieved by indirect transfer.
Firstly, the pattern is printed on the coated paper or plastic film by lithographic printing process, and then the finished product of this decal printing is pasted on the surface of the object to be decorated. The water solubility of the gum is used to dissolve the gum by soaking in water. Then the paper or plastic film is torn off, and the pictures and texts are transferred to the surface of the object. Different application of printing technology will create different effects. These processes play an important role in improving the creativity and artistic value of design works. They will make a sharp contrast in the texture of printed products, and will be more expressive and unique personality. For example, foil ironing can increase the visual impact; polishing can bring a bright light effect; die-cutting technology makes the structure of the work rich and hierarchical, increase the interest of reading, and enhance the interaction between customers and printed matter.