Four-color ink is connected by material, fill colored body (such as pigments, dyes, etc.), (filling) materials, additives and other components of a homogeneous mixture; printing and on which is printed on the dry; is color, with a certain fluidity of paste adhesives. Soybean oil vegetable oil four-color ink in ink, whether from the point of resource utilization and environmental protection point of view has traditional ink incomparable advantages, gradually become the new darling of the four-color ink market. 

Before the four-color printing process color, color printing mostly by hand open color, including Chinese Ming Dynasty woodblock "with dozens of edition to edition of 100 color engraving and printing is formed in the spectral color separation method, the formation of a vivid picture, and the original painting a few may be spurious. Japan ukiyoe, brocade painting, the use of this kind of style and the way of printing, the art of Japanese civilian life to add a lot of fun, like the Tokaido 53 times the scenery woodcut watermark, many customs, has a deep influence on the later European impressionist style. When the lithographic technology spread to Japan, some with highly artistic painter to switch to "stone colors", to anchor point or color Na network techniques show shading and texture, as long as ten, twenty color printing can form very fine lithographic effect, this pure color experience and judgment to using western lithograph printing four-color ink printing, for brocade painting made a very fine works. 

At present, the implementation of green printing has become the general trend of the printing industry, many enterprises have begun to implement the green printing, and achieved good results. So, what are the basis for these enterprises to implement green printing, or that these enterprises in the implementation of the green printing, the content of the reference is what? As the saying goes, there is no rule not Cheng Fangyuan. And the implementation of the "rules" of green printing, is all kinds of standards. But at present, various types of implementation of green printing standards can be described as a variety of people, do not know where to start. In order to further clarify this issue, let us start with the classification of the most basic standards. 

These standards around throughout the product life cycle of energy-saving, energy, reduce pollution and efficiency targets the implementation of, reached from the source pollution abatement, improve resource utilization efficiency, reduce or avoid the production and emission of pollutants in the process of production services and products to use, in order to reduce or eliminate the hazards to human health and the environment. These industry standard set the power of the whole industry experts to develop, very clear to guide enterprises to gradually implement the green printing, the enterprise can be based on the standard requirements of self diagnosis, self improvement and upgrading. 

I believe that with the introduction of the environmental protection soybean four - color printing ink, the implementation of green printing enterprises have a more clear technical basis. 

Four color printing ink is an important material for printing, it will be printed on the pattern, text performance on the substrate. Four-color ink consists of main components and auxiliary components, they uniformly mixed and after repeated rolling into a sticky gelatinous fluid. By the link material (resin), pigments, fillers, additives and solvents, and other components. Used for printing and printing, packaging and decoration, building decoration and electronic circuit board. With the increase of social demand, the four - color ink varieties and production is also the corresponding expansion and growth. 

Including pigments and dyes, pigment is divided into inorganic and organic pigments, the former bright color, strong coloring, put to dry in a short time, so in the four colour printing ink application is broad, such as azo, phthalocyanine pigments; the lightfastness, heat resistance, resistance to solvent, hiding power were better, such as titanium dioxide, cadmium red, chrome green, ultramarine, etc.. The particulate pigment coloring, not dissolved, is the most commonly used four-color ink pigment. The dye in the use of the preparation into a solution, a molecular state coloring, the effect is not as good as the pigment. The pigment can give ink with different colors and color density, and the ink has certain viscosity and drying. 

Lithographic inks. A kind of suitable for lithographic printing inks. The layout of the lithographic printing each part basically in a plane, the use of oil and water repellent principle of printing, so four colour offset printing ink must have water resistance. According to the process for the four colour offset printing ink, drum offset printing ink, offset the four colour printing ink, anhydrous offset ink, printing ink, lithographic printing ink, collotype ink. 

Environmental protection ink is mainly divided into the following categories: water-based ink, alcohol based ink, UV ink, EB ink, soy four color printing ink. For our country is the main soybean producing countries around the world, development and utilization of to soybean four-color ink not only can meet the national energy industry development and environmental protection policy, and promote the development of domestic vegetable oil industry, to expand the scope of application of vegetable oil, reduce non renewable oil consumption and imports, in order to save foreign exchange, also in line with the policy of rural industry development, promote the adjustment of agricultural planting structure benefits the country and the people. 

To reduce the energy consumption and carbon emission reduction of the printing industry by improving the technology of four color printing ink, it is the inevitable choice to ensure the whole industry to conform to the trend of green environmental protection. At present, there are a lot of environmental protection four color ink put into use, into the productivity, and create social benefits, of course, there are a lot of environmentally friendly four color printing ink technology needs further efforts to develop and promote.