A green environmentally friendly ink made from soybeans is popular in Europe and America. According to reports, the average price of soybean ink is 5% to 10% higher than that of gasoline ink, but the former spends less on the use of pigments, volatile organic compounds and printer cleaning costs; not to mention, With less soybean ink, you can print brighter and more eye-catching prints than petroleum inks. Currently, this technology accounts for a quarter of the market share in Japan, Europe and the United States.
On the homepage of the "Soybean Ink Information Center" in the United States, the history of the discovery of this new environmentally friendly material was described: the price of oil skyrocketed in the late 1970s, and the "American Press Association" realized the need for more reliable printing materials. So, after trying more than 2,000 vegetable oil solutions, the R & D department of the association finally determined soybean oil as an alternative ink solvent. In 1987, a media in Iowa began printing with soybean ink; in 2004, soybean ink became the main printing oil in the US daily newspaper. In order to promote the research and development and use of soybean ink, the United States also established the National Soy Ink Information Center in 1993. In 2005, soybean ink was successfully promoted in the United States and the world.
It is reported that soybean ink has good environmental protection and economy. The first is environmental protection. Soybean ink is a kind of soybean oil that is lightly purified and mixed with additives such as pigments and resins. Substituting vegetable oil for petroleum reduces the use of fossil raw materials and can alleviate resource constraints. In addition, soybean ink requires less volatile organic substances than petroleum ink, which can reduce air pollution, and its pigment degradation rate is also 4% of standard gasoline ink. Times. Second is the economy. Soybean ink is purer than petroleum extracts. To achieve the same dyeing effect, the former requires less pigment and reduces ink costs. The Illinois Department of Energy and Resources ’Hazardous Waste Research and Information Center once conducted a survey on soy inks. Many printers reported that soy inks are 15% more ductile than general inks, further reducing ink usage Printing costs are thus reduced.
Of course, soybean ink also has disadvantages. For example, it is not suitable for personal printers. Because there are no volatile organic compounds, soybean ink dries slower than ordinary gasoline ink, which poses challenges for some printing projects.
According to experts, the American Soybean Association has made specific regulations on the content of soybean oil in the ink, requiring that the content of soybean oil in the ink of the thermoset offset printing wheel transformation should not be less than 10%, the offset sheet ink should not be less than 20%, and the foaming ink Not less than 40%, offset news ink must be above 55%. If the product does meet this standard, the “SOYSEAL†logo of the Soybean Association can be affixed to indicate that the product has met environmental protection requirements.
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