Current situation and Prospect of the hottest ink

Current situation and Prospect of ink (Part 2)

the common solvents used in flexo printing are water, alcohol and toluene. If the main solvent is water, it is called water ink; And the main solvent is organic solvent, it is called solvent ink. In recent years, the domestic printing industry began to use ink while introducing flexographic printing machines. However, because few people used ink to print in the past, people habitually used the word ink to refer to all printing inks. With the emergence of ink, the relevant domestic industries agreed that Gu chengdi called it water-based ink. I think this kind of address is inaccurate. People usually say that oil and water are incompatible. In fact, oil is oil and water is water. They cannot be rigidly connected. If we analyze the word "water-based ink" in English, it should be called water-based ink, water-based ink, or simply water-based ink, so that the traditional ink can be different at the same time

ink used for flexo printing is usually composed of water-based polymer lotion, pigment, surfactant, water and other additives. The aqueous polymer lotion used for ink painting is mainly the polymer lotion synthesized by acrylic acid and ethylbenzene ethylene. Its role in ink painting is mainly: the carrier of pigment transmission, providing adhesion, hardness, brightness, drying speed, wear resistance, water resistance and other characteristics. This kind of lotion can be divided into film-forming lotion and non film-forming lotion. The former is used in ink without absorbing matrix such as plastic and metal coating materials, while the latter is often used in ink for paper and Paperboard Printing. The role of pigments is to provide the desired color. Commonly used pigments can be divided into organic pigments and inorganic pigments. For example, phthalocyanine blue and lisol red are organic pigments, while carbon black and titanium dioxide are inorganic pigments. Surfactants can also improve the stability of ink. Obviously, water is the solvent of ink system, which can change the viscosity of ink, thus affecting the thickness of ink layer in printing and the drying speed of ink

it is worth mentioning that the development of ink printing technology is the result of the improvement and development of printing machine, the development of plate making technology and the development of ink technology. For example, in order to improve the accuracy of color overprint, the printing machine manufacturing industry continues to improve the design and manufacturing technology of printing machine. Printing debugging can be carried out by computer, which is convenient and accurate. In order to obtain higher definition, the high-line number and small-size corrugation rollers are also gradually used in high-quality flexo printing. In order to meet the needs of high-speed lines (usually up to 600-800 lines) roller, ink manufacturers need to produce high-strength, less than micron particle size ink, otherwise it will affect the printing effect. Similarly, high-quality printing also requires higher requirements for color separation technology, the selection of printing plate materials and plate making technology

III. prospects

in terms of market, ink printing continues to expand. Packaging printing is the main market for the application of ink, and ink is also gradually used in the fields of decoration printing (such as wallpaper printing), books and newspapers printing

the ink used in book printing is one of the largest markets in the printing industry. The ink used for book printing is still mainly solvent ink. The main reason is that the effect of using ink to print books and periodicals is not very ideal, at least in the current situation, it can not reach the printing quality of solvent ink. The reason for this difference is not only the problem of ink, but also the cooperation between paper and printing machine. In recent years, there are many papermaking, ink making factories and printing machinery manufacturers cooperate with each other to constantly improve the ink formula and improve the water absorption performance of paper. Through many trial printing, many progress has been made. I believe that as long as it takes time, there will be a substantial breakthrough in the application of ink in the printing of books and periodicals. Once the use of ink can reach the printing quality, it was found that 100 patients with soft artificial eyes were basically satisfied, of which 10 patients in the hard artificial eye control group felt more comfortable than the hard artificial eyes after wearing the soft artificial eyes, without drooping feeling and adverse reaction requirements. The book and periodical printing industry was willing to change to ink

ink has been used in newspaper printing for at least 10 years. Because the paper used for newspaper printing has good water absorption performance, the application of ink in newspaper printing has come to the front of the book printing industry. The application of ink in newspaper printing has developed from pure black ink to color ink and overprint ink. There will be further development in this area in the future

anti counterfeit ink is a new field of ink development and application in the future. Due to the needs of anti-counterfeiting packaging, anti-counterfeiting securities, cheques and other aspects, the anti-counterfeiting ink produced by the combination of anti-counterfeiting technology and ink technology is being more promoted and applied. Although the sales volume of anti-counterfeit ink is small, the price is relatively high due to the high cost. Therefore, the sales volume is considerable

nowadays in the United States, due to the requirements of environmental protection and the development and improvement of ink technology, ink printing has been accepted by more and more printing enterprises. When ordering products from printing plants, a considerable number of users designated manufacturers to use ink to show their support for environmental protection and their commitment to the natural environment. The air cleaning program implemented in California a few years ago requires that the content of organic volatiles in ink is also limited and required. That is to say, pigments should be correctly selected in the formula of ink and try to exclude pigments with high content of heavy metal ions

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