How to reduce environmental pollution in printing process

Nowadays, the development of social economy makes people's awareness of environmental protection more and more high. From pre-printing design to printing process to post-printing processing, the concept of green printing runs through the entire printing process, regardless of which process will cause certain pressure on the environment. How to reduce or even avoid printing pollution has become a problem that many printing machinery factories need to consider. In the printing process, the way to reduce pollution is nothing more than printing materials, printing machinery and printing technology. www.chinacartonmachine.com

 

1. vigorously develop environmentally friendly ink.

 

Green printing ink is made of pure natural materials with good fluidity, dry workability and good adhesion. Ink with bright color and good diaphaneity. This kind of ink is mainly composed of three categories: water based ink, Uv ink and water-borne Uv ink. The biggest difference between water-based ink and solvent-based ink is that the solvent used in water-based ink is water and ethanol, VOC content is very low, not only can completely eliminate some harmful substances in solvent-based ink harm to human body, but also can improve the overall environmental quality, is the preferred ink for business card printing.

 

UV-curable ink (Uv ink) is a kind of UV-curable ink which can change from liquid to solid without solvent under certain wavelength of UV light. Uv ink has the characteristics of fast curing speed, green environmental protection, good printing quality and so on. Uv ink does not contain solvents, there is no solvent volatilization, will not cause environmental pollution; printed paper can be recycled, reduce waste of resources, is considered to be almost zero pollutant emissions of environmental protection products, has the reputation of energy-saving and environmental protection "green" products.

 

At present, the general development direction of inks is toward water-based environmentally friendly inks, solvent-free UV-curable inks, special environmentally friendly inks for different new materials, and the introduction of nano-materials to form reduced, high-performance inks.

 

2. developing environmental flexography Technology

 

Flexographic printing is recognized as one of the best and most promising printing methods. On the one hand, it can be widely used as a printing technology for picture albums and photo books. On the other hand, it can also be used to print publicity materials such as leaflets or brochures. Ink, with good printing adaptability and excellent environmental performance, just in line with the green development trend of modern packaging printing. Flexography has developed rapidly in developed countries such as Europe and the United States because of its good printing quality, wide range of printing materials, low input, high output and good environmental performance. In the United States, flexography has even been called "packaging printing".

 

3. developing waterless offset printing technology

 

Alcohol vapor is a serious cause of health hazards in printing plants, and alcohols can pollute the environment. Therefore, since the use of alcohols in printing technology, people have been exploring ways to eliminate the use of alcohols. Waterless offset printing technology eliminates the use of alcohols. Environmental protection is more important. At present, waterless offset printing is not widely used, but from the point of view of environmental protection, all the new technologies, new materials and new processes that are beneficial to the environment will have great development prospects in the future, especially with the development of digital printing technology, waterless offset printing will eventually become an important choice.

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