It can be seen that ink has become the main ink for printing. In the US market, 40% of plastic printing uses water-based inks, and sales of inks are rising. Currently, green and environmentally friendly inks have been used in the United States and some European countries, and solvent-based inks containing benzene have been banned. The development of water-based inks has broadened the competition with solvent-based inks, and the development of water-based inks has entered a new stage of development. As a polymerized emulsion resin having a core-shell structure and a network structure prepared by polymerizing an acrylic monomer and styrene is used in an aqueous ink, not only the gloss and dryness of the ink are greatly improved, but also promoted. In the first phase of the study, the design and development of resins for aqueous binders was the key to the development of waterborne inks. The styrene-acrylic copolymer resin is the second generation ink product of the binder, and the third stage is the third generation ink product with the polymerized emulsion resin as the binder. Titanium dioxide and Petroleum Resin C9 are one of the important raw materials for the production of inks.ġ.1 Development of foreign water-based inksįoreign research on water-based inks began in the 1960s and has mainly gone through three stages: the first stage is the first generation of ink products with rosin and maleic acid modified resin as the binder, and the second stage is solvent. These are little environmental pollution, but The air pollution to the workshop is serious. They still contain small amounts of alcohols, ethers and even organic amines. Although water-based inks have great advantages in the packaging and printing industry due to their environmental friendliness, they still cannot achieve zero emissions. In addition, it also reduces the risk of fire and toxicity caused by static electricity and flammable solvents, and provides favorable conditions for the greening and environmental protection of the packaging and printing industry in the future. Water-based inks are water-based, with extremely low VOC content, which greatly improves the working environment of ink manufacturers and print operators compared to solvent-based inks, thereby reducing the harmful effects of harmful substances on their bodies. It has two remarkable characteristics: one is low viscosity and good fluidity the other is that it does not use organic solvents and is beneficial to environmental protection. Water-based ink is a new "green" printing material in the 21st century. China has clearly listed water-based inks and related raw materials as the focus of future development research and the main direction of the development of the ink industry. At the same time, its use will also be replaced. They have received more and more attention and become the main target of future research. Water-based inks can solve the problems of emissions and pollution in the current packaging and printing industry due to their excellent environmental performance.
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