What kind of development level is the printing process in China? Where is the latest development? The shallow insights of this article hope to bring a little help to the reader.
Generally speaking, the technical content of the printing process is not high. It is very difficult to continue to develop in the case of high production costs in developed countries, so the printing industry is transferred to developing countries with low labor costs like China. It is an inevitable trend. At present, in addition to a few companies that also manufacture high-precision printing production lines, most companies have moved their production bases to China, which is a historical opportunity for China. What kind of development level is the printing process in China? Where is the latest development? The shallow insights of this article hope to bring a little help to the reader.
The printing process is a special printing technology that has just been transmitted to China in the 1980s. Because it has a very obvious advantage in printing on small-area and uneven-surface products, it compensates for the shortcomings of the screen printing process. Therefore, it has developed very fast in recent years. Regarding the printing process, relevant printing consumables will be used, please see the following:
1. The use of pad printing steel plate printing plate in the pad printing process dominates, 100% oil pan type pad printing machine and 16% oil pad printing machine use thick steel plate with thickness of about 15mm; The 77% oil-based pad printing machine uses thin steel sheets with a thickness of 0.25 mm and 0.5 mm. The plate making process is the same whether it is a thin steel plate or a thick steel plate. The substrate used is also approximately the same. The steel plate must have a fine structure and a high surface finish. The former guarantees the tidyness of the edge of the image after corrosion, thereby ensuring the integrity of the dot structure, and maximizing the sharpness and color reduction of the printed image; the latter ensures the cleanness of the ink and the printing durability. The thick steel plate used on the oil pad printing machine has higher surface tolerance requirements. The excessive surface tolerance is on the one hand, which accelerates the wear of the oil pan. On the other hand, it also relates to the sealing property of the ink. It is used on the oil pan type pad printing machine. Steel plates are to be used on oil kneaders to ensure a higher surface finish and lower flatness tolerances.
The thin steel plate has better flexibility, so the degree of cleanness of the ink scraping is easy to ensure, but this is related to the manufacturing precision of the substrate supporting the steel sheet, the surface degree tolerance of the substrate is not satisfactory, and the ink leaks during the sliding process of the oil pan and the steel plate. Another factor is the manufacturing precision of the oil sliding guide shaft, such as surface roughness and fit tolerance, which is reflected in the assembly level of the whole machine. How to control the parallelism tolerance between the guide shaft and the steel plate is very important. From this point of view, the thick steel plate oil pad printing machine is more difficult to manufacture.
Second, the resin version The resin plate applied to the pad printing process is not long, but has been paid attention to. The resin plate is mainly made of nylon photographic adhesive and cast on the surface of the zinc plate, similar to the resin plate used on the sticker trademark. Nylon has very good wear resistance and is capable of repeating friction of oil squeegee or scraper after photographic curing. The advantage of using a resin plate is that it is easy to obtain extremely fine dots. When printing small and beautiful items, the resin plate is the first choice. If it is said that the manufacturing of the oil pad printing machine reflects the manufacturing level of a company, it will be more difficult to manufacture a pad printing machine using a resin plate. The nylon photosensitive glue is a polymer material after all, and when the substrate supporting the substrate is manufactured with poor precision, the printing is performed. It is not easy to complete the general printing. The surface state of the polymer material is very fine, and slight defects will seriously affect the printing quality.
3. Pad printing is to use the principle of development. The pattern to be printed is first etched on the steel plate, and then the ink is transferred onto the surface of the article to be printed by a soft glue pad on the pad printing machine.
The company is also specialized in the production of pad printing heads, using German and Japanese glue raw materials.
1, according to the color is divided into yellow, white, red, according to the shape of HA (round), HB (square and long strip), HS (specially customized shaped) three series, thousands of common styles, special prints Plastic head can be specially made
2, according to different shapes and hardness of the rubber head, the customer can obtain the ideal elasticity and flexibility of various patterns and printing, which can guarantee the plane, curved surface, irregular surface, printed small area pattern and fine line pattern. Clear printing effect
3, good elasticity, strong flexibility, long service life, complete ink, easy to deinking transfer, residual ink is easy to clear four, printing ink printing ink is still based on solvent ink, printing ink has been used Instead of screen printing inks, the effect is also very good. At present, most ink manufacturers use pad printing inks and screen printing inks as a series to produce. However, there are also many problems with the use of screen printing inks in the pad printing process. Our company currently has professionally developed pad printing inks. In contrast, special pad printing inks are faster and more stable, and have better thixotropy. The ink layer of the pad printing process is relatively thin. In order to obtain more conspicuous writing, the pigment in the ink has higher purity and finer fineness, which are the difficulties in manufacturing the printing ink.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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