The rapid development of the domestic printing ink market has broad prospects
The printing ink market is vast and profitable, attracting many domestic companies to research and develop, and domestic ink production has recently experienced rapid development.
UV ink has long been common in the field of screen printing, and now a final bastion is that UV printing inks can not be replaced with screen printing inks like solvent-based inks. The production process of UV screen printing ink is much simpler, as long as the ink permeability is good, the printing effect is easily guaranteed, and the UV pad printing ink requires the transfer of the pad to the acrylic resin monomer in the ink Well, generally speaking, the pads are made of silicone rubber, the affinity of silicone rubber and acrylic resin unit monomer is very poor, the transfer efficiency will be affected, on the other hand, the solvent ink must be added with necessary fillers to improve The trimming and trimming of the imprint, but UV pad printing ink can not add too much such Filler, in addition to affecting the curing efficiency, the transparency of the ink will be difficult to guarantee: when developing UV pad printing ink, to ensure the color It is difficult to ensure a high concentration but ensure good transparency and good transferability. Now these problems have been overcome. MARABU, a professional manufacturer of pad printing inks, has fully launched their UV pad printing ink TPC series to the market. The successful development of UV pad printing inks has solved some problems that have always troubled people. For a long time, the requirements of gloss and wear resistance of the text of computer keyboards have not met the requirements of customers. The use of UV inks has become the goal pursued by many manufacturers. However, printing UV inks by screen printing has a lot of troubles and is now used. The method of pad printing completes the transfer of UV ink, which can easily meet the requirements of customers. The characteristic of the pad printing process is to generate pressure from just above the substrate to complete the printing. Then, the printing process can easily prevent the product from shaking.
Oil Cup Pad Printing Machine
China has developed rapidly in recent years, and the advantages of Western countries in traditional industries have been gradually replaced by China. In order to protect the development of their own industries, some European and American countries have formulated very strict market access systems to restrict Chinese products from entering the EU market. Product manufacturers exporting to the EU comply with the ISO14001 environmental standards. Objectively speaking, the technical barriers of European and American countries are very unfavorable to Chinese companies, but in the long run, the pressure these systems put on Chinese companies may force us to continuously adopt new technologies to improve our country. Product technology and safety level. Shown in the field of printing technology, the use of more environmentally friendly technologies must attract the attention of Chinese enterprises.
The solvent in the solvent ink will be captured by the human respiratory system when it evaporates into the air, and most of them are harmful to the human body. This is generally resisted by Western society that mainly protects human safety. Regulations to control the use of solvent-based inks. The earliest production of the printing machine in Germany to control the volatilization of the solvent by cutting off the volatilization of the solvent is the oil cup pad printing machine. The main difference between it and the traditional open pad printer is the difference in ink supply.
The ink supply part of the oil cup pad printing machine uses the oil cup with ink and solvent reversed on the pad to continuously supply ink to the plate. Due to the control of the volatilization of the solvent, the viscosity of the ink during use The change of the drying speed tends to be stable, which is more conducive to obtaining uniform printing quality. The stable stability of the gondola is the most commendable advantage of the ink cup pad printing machine. The effective reduction of solvent evaporation also improves the working environment of the operating staff. It is worth noting that the manufacturing level of the ink cup pad printing machine reflects the level of the manufacturing level of an enterprise. At present, there are only a handful of domestic companies that have passed the quality of the ink cup pad printing machine.
Plate making process
At present, the production of pad printing steel plates is mainly performed by using a nitric acid solution and a ferric chloride solution added with a protective agent for corrosion. The acid smell of this kind of corrosion is unpleasant, and the generation of nitric oxide and nitrogen dioxide is very harmful to the human body. The development of the steel plate after corrosion is mostly based on the use of chemical solvents with hydrogen peroxide as the main body. It also has a certain effect on human skin. damage. Therefore, it has been banned in European countries. They started to use resin plates or laser engraving to make plates. It is a relatively novel idea to use the powder-free corrosion machine that corrodes the zinc plate to corrode the steel plate. Some manufacturers have successfully tried it. This method greatly reduces environmental pollution. Resin plate making is much more environmentally friendly and safer. The resin plate uses nylon photoresist, which can be developed with sprinkling liquid. With the popularity of digitization, it will not take too long to produce digitally printed resin plates using digital methods.
Ink
Pad printing inks are still dominated by solvent-based inks. Pad printing inks have been replaced with screen printing inks, and the effect is also very good. At present, most ink manufacturers treat pad printing inks and screen printing inks as one series . However, screen printing inks used in the pad printing process also have many problems. MARABU has pioneered the development of pad printing inks. In contrast, dedicated pad printing inks dry faster and more stable, and have better thixotropy. The ink layer of the pad printing process is relatively thin. To obtain more striking handwriting, the pigment purity in the ink is higher and the fineness is finer. These are the difficulties in manufacturing pad printing ink. At present, in addition to MARABU company's special series of pad printing inks, German DUJO company's pad printing inks have begun to occupy a certain market. In addition, there are very few special printing inks, and the British COATES ink, which is famous for the production of screen printing inks, also has a large market share as an alternative to low-end products.
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