Evaluation and digital application of ink

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Ink evaluation and digital application

-- assessing inks, dealing with digital the npiri conference

the 44th technical seminar was held by the American printing ink Institute in Songshan, Georgia, in October 2000. The meeting was attended by a lot of people, including short-term activities on "UV/EB curing ink" and "digital printing technology in the information age"

the release of npiri technical achievement award is the focus of this meeting. This prestigious award was awarded to Watt zavagi of flint, who participated in the ink color standardization of ISO and npiri committees and transplanted color management into color science. About 25 years ago, he began to engage in several key color projects

people who love environmental protection submitted an interesting paper - "flexographic printing ink options: evaluation of the harmlessness of ink components". In this paper, the development prospects of solvent ink, water-based ink and UV curing ink in cost, energy, environment and health are compared. Including 45 ink formulations

solvent based and water-based inks are very close in average index, but the order of ink performance is as follows: 1 Solvent type; 2. UV curing; 3. Water based ink

however, the cost is mainly determined by the printing speed. Research shows that at the same printing speed, water-based ink is the most economical, followed by soluble ink and UV curing ink

in terms of environment, water-based inks contain more unstable organic compounds than solvent based inks. In terms of controlling the oxidation of unstable organic compounds, water-based inks are more expensive than solvent based inks. Compared with UV curing ink and soluble ink, water-soluble ink shows the lowest energy consumption. All inks are harmful to unprotected workers

the evaluation conclusion of the harmlessness of ink components is as follows:

1 There is no system that has a clear advantage in the harmlessness of ink

2. Some water-based ink and UV curing ink formulations have high requirements for environmental, health and safety conditions

3. Little is known about the toxicity of many ink components

obviously, digital printing is exactly what the ink manufacturer Jinmin we work thought in less than a year. For ordinary ink manufacturers, digital printing is a threat. It can be expected that many of our ink manufacturers will invest in the digital age

take Toyo ink company, which is famous for its high-tech operation, as an example. In 1979, Toyo ink company launched the initial digital prepress system. It also supports the 1985 saiangel's first flat-panel scanner and the 1990 indigo digital January 22 printer. Now, Toyo ink company is involved in the research of electrocoagulation imaging method. This is what everyone on earth should do

the American branch of Toyo ink company introduced the electrocoagulation imaging technology. Since 1995, Toyo Ink Co., Ltd. and its U.S. branch have jointly developed this technology, and more than 32 patents have been published and registered in Europe, Japan and North America

electrocoagulation imaging is a digital printing system, which is based on electrocoagulation of electrolytic sensitized polymerization water-soluble ink. The process involves applying a very short current pulse to the conductive ink solution between the cathode array and the passivated rotating anode. The ink adheres to the positive electrode and then transfers to the white paper. By adjusting the current pulse time of each electrode, the volume of each condensation point is controlled to increase in small increments. In this way, the continuously modulated image is written rapidly at the speed of 4 microseconds/point (200 feet/minute)

the new Elco 400 printer has doubled the printing speed to 400 feet/minute with an image resolution of 400 points/inch. With a resolution of 400 lines/inch, the rated writing speed of the printer is 15 m/s. For details of this technology, see

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