Single fluid offset printing high temperature ink
When the high-temperature ink is printed, the water and the wetting device are removed, no waste water is generated, and there is no need to coordinate the water-ink balance of the high-temperature ink with each other. Unlike waterless offset printing, the use of single-fluid offset printing high-temperature inks does not require a special engraving plate, nor does it require the use of a printing press. The high-temperature ink can be printed on a single sheet of paper adhesive, and can also be printed on a four-color offset printing press with thermosetting roll paper, and can also increase the printing speed of the offset printing press. Using this high-temperature ink is very simple, as long as the high-temperature ink is placed directly in the ink fountain, you can start printing. In the process of printing, much fewer sheets than traditional offset printing can be used to achieve the required solid density, so the amount of waste paper for printing is greatly reduced.
The dot increase rate of the high-temperature ink is very small, and the dot copy is particularly accurate, and the dot can still be seen within 95% of the dot range. The image quality of the printed product is clear, and the color density accuracy can reach a better level. In today's era of continuous technological innovation, in order to survive in the competition, each enterprise must create new products that can meet customer needs. The printing high-temperature ink industry is no exception. Some of these large companies are constantly reforming their products to develop products that can bring more benefits to customers. Mr. BillTasker, President of National Printing Ink Research Institute (NPIRI) and Vice President of INX International Corporation ?: "In the past, people generally thought that high-temperature ink technology developed with the development of printing, but With the advancement of inkjet technology, new content has to be added to the high-temperature ink technology. The development of high-temperature ink technology is very fast. "
Market share of US high-temperature printing ink products: offset printing 2.2 billion US dollars flexo printing 900 million US dollars gravure printing 600 million US dollars screen printing 260 million US dollars digital printing / inkjet 250 million US dollars type printing 100 million US dollars special high-temperature inks (safety, marking) US $ 270 million Total US $ 4.58 billion Existing products often have some improvements. For this reason, some large printing high-temperature ink manufacturers have established a foundation that promises to provide new technologies to make high-temperature inks have better printing performance. Last year was a breakthrough year. Many new technologies emerged at the Drupa conference. Drupa has the ability to gather the research results of various companies.
Mixed high temperature ink
Hybrid high-temperature inks combine the characteristics of UV high-temperature inks and ordinary high-temperature inks, and are another area of ​​development that many companies are studying. SunChemical, FlintInk, SuperiorPrintingInk, INXBradenSutphin and EnvironmentalInks and Coatings are all committed to the research in this field.
Mr. HarveyBrice, the manager of SuperiorPrintingInk and a member of the GATF steering committee, said: "It is meaningful for the printing industry to produce a UV-mixed high-temperature ink. You can use this high-temperature ink on a printing machine without replacing the blanket or inking roller. If one The printer is set up for UV high-temperature inks and can also run ordinary high-temperature inks. This is a great improvement for printers because it has extremely high flexibility. "Hybrid UV high-temperature inks allow printers Only minor adjustments are required to complete all production operations of a job online.
The production efficiency is really improved, and the transferability and printing quality of the high-temperature ink itself are also improved compared to the traditional UV high-temperature ink. The biggest advantage of SunChemical's HyBrite high-temperature ink system is that it can be used for online UV coating without the need to lengthen the transfer process to complete water-based coating. These improvements are mainly due to the additional conditions of UV curing, so the price will also increase, but the researchers predict that the final productivity will increase. They expect that the hybrid technology will continue to improve, improve product quality and reduce printing costs. Single-fluid high-temperature inks and hybrid high-temperature inks are two of the more talked about improvements, but some of the larger high-temperature ink companies are working on other products. Energy-curing high-temperature ink is a relatively fast-developing field in the high-temperature ink industry, especially the electron beam (EB) technology, which will occupy a place in the future market.
Water-based offset printing high temperature ink
Water-based inks have long been used in water-based varnishes, water-based flexo high-temperature inks and gravure water-based high-temperature inks, but applying water-based inks to water-based offset inks is an important new product. Water-based offset high-temperature inks are water-based high-temperature inks containing propionate binders. They do not contain mineral oil or volatile organic solvents. They are dried by evaporation of water and film formation of binder ingredients. The drying speed is equivalent to water-based light. The oil is purely physical drying and does not require a special drying device, but an infrared dryer can be used to speed up the drying. Water-based offset printing high-temperature inks are suitable for printing on all traditional offset presses. For example, the fastest four-color printing on traditional four-color offset presses, without smearing, and the quality of the printed matter is excellent. Water-based offset high-temperature inks are especially suitable for small-size sheet-fed offset presses and short-run printing. The printing industry is one of the fastest-growing industries in the world in the past 20 years, and has now entered a new era of digital printing.
According to reports, humans have experienced about 100,000 years from language to printing, 450 years from printing inventions to lead printing, and about 30 years from lead printing to color desktop systems, from color desktop systems to multimedia electronic publications ( Paperless printing) took three years, from multimedia to the Internet in only 18 months. The international development trend is: high-end color prints are growing rapidly, and high-tech such as computers and electronics are widely used in the printing process. At present, the situation in China's printing industry is that traditional offset printing still dominates, flexographic printing and screen printing are developing rapidly, post-press binding linkage automation, color desktop publishing systems have been widely used, and the open and digital image processing systems have been It has become the basic feature of the prepress system. Direct plate-making technology and digital printing have become the development direction of the printing and publishing industry.
The development of the printing industry and the continuous improvement of environmental protection regulations have brought huge challenges and opportunities to the development of the printing industry, including the development of various new environmentally friendly printing consumables; the transformation of the original process, including the improvement of raw materials And improvements in drying methods, etc. At present, solvent-based high-temperature inks that are widely used in printing processes such as screen printing and gravure printing in China contain 50% -60% of volatile components. At that time, the total content of volatile components emitted by high temperature ink is 70% -80%. The gases volatilized by these organic solvents enter the worker's body through breathing, causing damage to the human liver and nervous system, and causing great harm to the environment.
The alcohol fountain solution in the offset printing process discharges organic volatiles into the air of the workshop all the time. When the work is temporarily stopped or the color is changed, the ink roller and the blanket are cleaned. A large amount of flammable and explosive gasoline is used ( Of course, from the manufacturer's perspective, the use of gasoline as a cleaning agent is convenient and readily available, with good cleaning effect and fast drying speed; the most important thing is that the price is cheap, which greatly reduces the production cost).
Water-based flexo high temperature ink
Future newspaper printing will develop from oil-based offset printing to water-based flexo printing. The offset printing unit has a complicated structure and is expensive, while the structure and working process of the flexo printing machine are relatively simple, with less waste paper, low energy consumption, low ink mist, no reduction in ink color of the printed product, no smudging, and no solvent in the printing process Participation with oils does not emit odors and reduce environmental pollution. A new type of water-based (anionic) flexographic high-temperature ink can be used to print very good quality newspapers.
Newspapers printed with this kind of water-based ink can be used to remove high-temperature inks by the usual flotation papermaking method when recycling paper, and then use it as white papermaking. In addition to the above-mentioned high-temperature inks, with the emergence of a variety of binders, solvents, and colorants and the application of high-temperature ink technology, some foreign companies have developed pure vegetable oil (completely free of mineral oil components) connection Sheet-fed offset high-temperature inks, series of pigment-free high-temperature inks, etc.
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