"Environmental friendly ink, green printing" has become the theme of the 21st century ink printing industry development, because in recent years, many countries and regions in the printing and packaging increases the health and environmental protection requirements and constraints, especially for drug, food, children's products and other aspect explicitly pointed out that prohibited the use of toxic and harmful ingredients of printed materials, the information tells us research, development and use of environmentally friendly printing ink, is a major event for the benefit of mankind, is permit to enter the international market, is the direction of development in the future. The future development of the ink industry in our country mainly has the following several directions. 

1, offset printing ink in various printing, offset printing ink in our country occupies a volume of close to 50%, still occupies a dominant position, in the next 20 years will still be steady development. The printing mode mainly has two kinds: lithographic leaflets printing paper version of peace drum paper printing, the variety specification, quality reached quite high level, just printing ink application mostly non environmentally friendly, as long as the binders little improvement can be. At present, foreign in the food, pharmaceutical packaging printing must be the use of environmentally friendly ink, such as no aromatic and non solvent type (soybean oil) offset printing ink. These low toxicity or harmless type ink is the direction of future development, is the goal of our efforts to develop, but also to enter the international market conditions. International standards for this type of ink requirement is: no aromatic ink aromatics content is less than 1%, and non solvent type ink solvent containing less than 1% of the amount, limit the content of heavy metals such as table 3: Table 3 heavy metals content restrictions (unit: mg / kg) we should pay close attention to the global environmental protection printing ink technology trends, and constantly develop more environmentally friendly ink products, to organic pigment replace containing harmful heavy metal inorganic pigments, strict use of raw materials do not contain lead, cadmium and other heavy metals, more production of non aromatic hydrocarbons and non solvent for offset printing ink, such as soy ink green ink. 

2, water-based ink is recognized as the world's most environmentally friendly printing ink printing ink, the most development prospects, but also our efforts to develop the best target. In recent years, the development of fast, especially in the international market is being used in a large number of. Water-based inks and solvent based inks on the biggest difference is lies in the use of solvent is water, and the organic solvent is not, does not affect human health, no pollution to the environment, is not easy to burn, especially suitable for medicine, food, children's toys and other packaging printing. 

3, UV ink and EB ink UV ink is a kind of ultraviolet radiation, the use of different wavelengths of UV energy to make the ink film fast drying ink. UV ink is 100% film material, non solvent, and the ink film has excellent abrasion resistance and chemical resistance. Although the development of domestic already initially but only UV printing paper and printing inks, few varieties, expensive, yield is low, can not meet the needs of the domestic printing plant, in recent years has gained great progress. EB inks is electron beam curing inks, for electron beam is much larger than the energy of ultraviolet light, so EB inks without join photosensitizer can curing and drying. In addition, it also has a significant wear resistance, resistance to scratch and no skin, and other characteristics, is a high value-added products. At present, the global EB ink market share of about 30 million to 50 million U.S. dollars, is a very promising market. So far the domestic EB ink market is still blank, is one of the direction of our research and development. 

4, digital printing ink nowadays, digital printing has become a new development trend of packaging and advertising in the field of domestic and foreign, the domestic import a considerable number of digital printing machine. In order to make the digital printing machine not only adapt to the requirements of high speed printing, but also achieve good printing quality, digital printing ink is very important. But the domestic development and production of digital printing ink products are very few, such as the Tianjin printing ink company and other companies have already developed jet printing ink, but so far has not been put into production. Therefore, the digital printing ink is still an area to be studied. 

5, nanotechnology is a rapid development of nanotechnology is a high-tech, and has begun to apply in the field of ink manufacturing. Such as nano calcium carbonate and other raw materials. But did not form the main trend. If the ink resin connecting material, pigments, additives and desiccant components made of nano scale materials, highly decentralized and has better fluidity, wettability and thus made of ink can save raw materials, reduce the cost, and can get the excellent printing effect.