Green printing and green packaging
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The development of science and technology has enabled mankind to enter the stage of self-protection and sustainable development. The phenomenon that is unfavorable to the ecological environment and human health should be highly valued and severely restricted. In accordance with the requirements of the scientific development concept, it is particularly important and urgent to vigorously develop a circular economy and accelerate the construction of a resource-saving society.
The development of circular economy is the fundamental way to alleviate the contradiction of resource constraints, an effective way to fundamentally reduce environmental pollution, an important measure to improve economic efficiency, an urgent need to deal with new trade protectionism, and the essential requirement of sustainable development based on people. .
At present, people in the printing industry are increasingly aware that the excessive consumption of natural resources and energy in printing production and the pollution of packaging waste to the natural environment have become an obstacle to the development of the industry. “Health” and “Green” have attracted more and more attention. Green printing has become one of the important factors in building a harmonious society.
Green printing
In the 1980s, European and American countries took the lead in advocating the concept of green printing. At present, green printing is guiding and promoting the global printing to a healthy and orderly direction with its strong influence. In foreign countries, not only the requirements for waste disposal are increased, but also the way to reduce the consumption of ink. For example, as early as June 2000, the United Kingdom enacted legislation prohibiting the printing of food packaging films with solvent-based inks. It is understood that 60% of prints in the UK are printed with alcohol-free or low-alcohol inks. The US Environmental Protection Agency strongly opposes the use of solvent-based inks, which are currently the only non-toxic inks approved by the American Food and Drug Association and are widely used in the packaging and printing of foods and pharmaceuticals.
In many countries, the people are also very concerned about the impact of commodities on health and the environment. For example, a recent survey in France showed that 95% of French people want to understand the potential health and environmental hazards of the purchased goods, and hope that the government will increase the safety of goods. Relevant laws on transparency. 83% of French people surveyed believe that today's children face more threats to their goods than their parents, especially today's goods contain more potential substances that pose a potential threat to human health than past commodities, such as certain chemicals. Wait. In recent years, with the increasing awareness of environmental protection, the green and green printing method of environmental protection is more worthy of our expectation!
The impact of printing products on environmental protection, it is understood that there are two aspects in the international are strictly limited: the residual content of the solvent is not allowed to exist or exceed the standard, the solvent here mainly refers to benzene, esters, ketones, etc.; heavy metals such as lead, chromium, The content of copper and mercury must comply with European Directive 94/62/EC and its concentration should not exceed 100 PPM (accumulation). The above two restrictions are for harmful substances in the ink.
The ink used in flexographic printing has its unique advantages. Currently, there are three major types of flexographic printing inks: water-based inks; alcohol solvent inks; and UV inks. In particular, the aqueous ink does not contain a solvent, and therefore, there is no residual content of the solvent, and it is an internationally recognized environmentally friendly ink, and has been widely used in some countries. Alcohol solvent contamination in methanol-free alcohol solvent inks is much less than benzene, esters, and ketones, and trace amounts of alcohol do not affect human health.
Due to the limited forest resources in China, the pollution problem caused by papermaking is difficult to solve in a short period of time. If the full implementation of paper instead of plastic packaging is neither realistic nor environmentally friendly, the total ban on plastic packaging will cause greater pollution.