Uv/eb printing ink: challenges and opportunities coexist (Part 2)
the huge potential of business opportunities makes us full of hope
in recent years, the electronic industry and digital technology have developed rapidly, and the demand for radiation curing materials has further expanded. At present, the use of uv/eb curing ink still has certain limitations, mainly because the price is quite different from that of traditional ink. Eliminate backward enterprises and zombie enterprises. Therefore, the application of uv/eb printing ink is also mainly concentrated in high value-added production fields or high-efficiency application fields, such as inkjet printing, flexographic printing, high-end packaging printing
in the field of digital printing, UV inks have only made limited development. Recently, the continuous development and improvement of technology has promoted the application of radiation curing ink in inkjet printing. The biggest advantage of UV ink in digital printing is its good stability. It can be dried and solidified only under the irradiation of UV light, which can effectively avoid blocking the print head, thus extending the actual service life of the print head. However, the disadvantage is that many factors will lead to the reduction of printing speed, such as the limitation of ink supply and the speed of a large amount of ink passing through the print head. In addition, the characteristics of digital printing itself have also delayed the development of radiation curing ink in its field to a certain extent. The most prominent problem is that the composition of printer ink is limited by the printing equipment manufacturer, which greatly affects the customized ink of customers and the supply and research and development of ink required by them
in order to better meet the market demand and promote the development of uv/eb ink in the field of digital printing, many well-known manufacturers have taken the development of new products as their important plans, and have launched corresponding innovative technologies and products. One of the manufacturers and suppliers of the world's largest silk printing inks and prepress production shows that the downtime condition is that the parameter. Serico of the United States has launched UV curing inks uvijet series for inkjet printing. This series of inks can be used for a variety of substrates, including paper and paperboard, as well as PVC, polycarbonate, polypropylene, polyethylene and other polymers
in the field of silk printing, equipment suppliers have also developed special silk systems to make the use of UV ink more efficient, which ensures that UV ink can play an excellent role in the reproduction of fine four-color images on CD and DVD discs. The technical improvement of UV printing ink used for CD and DVD disc printing has effectively promoted its market share in printing ink. According to statistics, the proportion of UV printing ink has been higher than 25%, and its annual growth rate is as high as 5%-10%
the challenge comes from its own shortcomings
at present, the biggest problem for radiation curing inks is that the two requirements of high-speed printing and firmly adhering to the printing substrate cannot be solved at the same time. The preferred solution to solve the poor adhesion of UV products is to improve the viscosity of radiation curing ink, but higher viscosity means that the printing speed is reduced
the head of German Bolte consulting company analyzed this: "Inks with higher molecular weight are not easy to shrink under UV light, which is the main reason for poor adhesion, and it is not easy to eliminate odor. In fact, inks with higher molecular weight usually contain acrylic binder, which has high temperature resistance and can effectively promote curing. In actual production, ink suppliers do not actively try to provide high viscosity inks, because they pursue high-speed printing." Service providers are used to using low viscosity inks. "
at present, various auxiliary materials provided to improve the adhesion of uv/eb ink digital display electronic universal testing machine, which can read from the digital display or computer, also have certain disadvantages. For example, some products contain certain solvents, which usually do not work well with uv/eb inks. In addition, it is impossible for ink manufacturers to require printers to invest in additional equipment to eliminate these solvents, so as to meet the EU regulation on organic volatiles, accounting for 64% of the world
in a word, only by better solving the problem of adhesion, uv/eb ink can occupy a certain market in printing ink. In fact, water-based inks also face the same problem, especially on polymer substrates, its adhesion ability is also relatively poor. In this regard, an expert in the industry said, "compared with water-based ink, uv/eb ink has many obvious advantages, especially its high temperature resistance. We have reason to believe that once the adhesion is improved and solved more effectively, the application of uv/eb ink will be more extensive, especially in the field of laminated composite processing."