The traditional oily ink solvent mainly benzene, xylene and other aromatic hydrocarbons and alcohols, ketones such as butanone and acetic ester solvents such as organic solvent or dispersant, and adding stabilizer, which has great harm to human body is aromatic hydrocarbon, as well as those of heavy metal pigments, such as lead and chromium; the water-based ink is based on water as a new type of printing ink dispersant, it greatly reduces the use of organic solvents and thus solves the harm of printing and reading process on the human body, but also greatly reduces the pollution to the surrounding environment and destruction, to ensure the sustainable development of ecological environment.

  According to reports, in the United States and some European countries have banned the use of benzene solvent based inks, instead of green ink. At present, the United States has 40% plastic printing ink. In other developed countries, such as Japan, Germany and France, also more and more use of water-based ink in plastic film printing, Britain enacted in June 2003, banned film with solvent based ink printing and packaging for food.