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Analysis of the application of environmental friendly inks in the field of food packaging

environmental friendly inks are more and more widely used. In addition to the field of food packaging, they are also expanding in commercial printing, publication printing and other fields. The cup held by the figure shows edible environmental friendly ink "We put the most difficult task of building an ecological environment in the first step.

food safety has attracted more and more attention of Chinese people, and people's attention is mostly focused on food. Ordinary consumers can cite a number of relevant common sense. But whether the packaging of food is environmentally friendly, and whether the ink in packaging and printing is environmentally friendly? Such questions are not answered by ordinary consumers. Recently, China Publishing News" In an interview with Dong Jinshi, Secretary General of the International Packaging Association, he learned that at present, the violation of raw materials used in domestic food packaging is very serious. Among them, he focused on the impact of ink used in food packaging on the safety of food packaging. On this topic, we also interviewed a number of industry experts to interpret the environmental protection problems of ink in food packaging and printing for consumers

water based inks become the first choice for environmental protection

interviewed yuan Jianxiang, Secretary General of the equipment branch of China printing and equipment industry association. He said that at present, the printing industry does not classify the inks according to the commodity types of the packages, but only according to environmental friendly inks and traditional solvent inks

according to Yuan Jianxiang, the water-based ink newly developed and applied in the market is a relatively safe ink type, which can be used for food packaging and printing. In addition to water-based inks, the environmentally friendly inks known in the industry include soybean inks. However, Yuan Jianxiang believes that although vegetable oil is used to replace mineral oil in soybean ink, its solvent is still a traditional solvent. Even though its environmental protection performance has been greatly improved, it is not suitable for direct use in food packaging and printing

it is understood that the use of benzene containing inks in food packaging and printing is expressly prohibited by the state, especially for packaging materials in direct contact with food. However, Dong Jinshi said that despite the prohibition provisions, there are still some illegal operations in the market that use benzene containing ink in food packaging, which poses a great threat to the health of consumers. As for other components of ink, which components can be used in small quantities, which components cannot be used, and whether they are harmful to consumers, it is still in a state without evidence

the market application is not optimistic

talking about the application of water-based ink in food packaging, Yuan Jianxiang said that there is no exact statistical data at present. China publishing daily interviewed Yang Jianzhou, sales manager of Edison, a well-known manufacturer of water-based ink. Yang Jianzhou introduced that water-based inks are also divided into flexible water-based inks and intaglio water-based inks. Among them, flexible water-based inks are mainly used in food packaging and printing. However, there is little market application, especially in the northern domestic market. It is only partially applied in some internationally renowned chain food production enterprises, such as McDonald's, KFC, etc

what causes the water-based ink to be difficult to promote rapidly? Yang Jianzhou believes that the main reason is that there are too few market applications to achieve mass production. What we learned from the printing enterprises is that it is usually up to the food production enterprises to decide what kind of ink to use to print food packaging. Printing enterprises will only choose raw materials according to the requirements of customers. On the one hand, if the food production enterprises do not put forward environmental protection requirements, the printing enterprises will not make special adjustments to the ink, but still focus on the final printing effect of the printed matter. On the other hand, Dong Jinshi believes that the competition between domestic enterprises has become a kind of cost competition, and the cost competition has risen to the price competition of raw materials. The primary consideration of enterprises in production is cost rather than environmental protection. This unhealthy state of market competition has led food production enterprises to pay little attention to whether the raw materials of packaging are environmentally friendly

but Yang Jianzhou said that in terms of price, water-based inks are not much different from traditional inks, and people's ideas need to be adjusted urgently because they do not meet the requirements of green technology. It is understood that at present, there are no testing standards and relevant institutions for food packaging materials in the market, let alone the use of ink for packaging. People's old idea is to focus on the quality of food, and few people pay attention to its packaging. For this point, both Dong Jinshi of the International Packaging Association and Yuan Jianxiang in the field of printing equipment have expressed great recognition. The improvement of the system is conducive to the rapid adjustment and standardization of the industry

the future prospects are bright

green printing has been deeply rooted in the hearts of the people. In publication printing, China plans to achieve comprehensive green printing of primary and secondary school textbooks within three years, which also puts forward specific requirements for the environmental protection of inks. With the increasingly stringent requirements of the state on environmental protection, the environmental protection type of food packaging and printing will be included in the specific regulatory scope. Therefore, in the future, environmental friendly inks represented by water-based inks will be applied more and more widely and used more and more, which will become the development trend in the future

yuan Jianxiang also believes that the price of water-based ink is not much different from that of traditional solvent based ink, which has little impact on the cost of enterprises. And the use process is no different from that of traditional solvent based inks, which will not cause additional costs. This has laid a good market foundation for the popularization of water-based inks. The crux of the application of water-based ink actually focuses on product performance. Some properties of water-based inks are not as good as those of traditional solvent based inks. In order to stimulate consumer consumption, general food production enterprises usually design colorful packages, and the color reduction of water-based inks is insufficient, which is not as good as traditional solvent based inks. Solving this technical problem will open the development bottleneck for the wide application of water-based inks

in the process of plastic extrusion, Yang Jianzhou introduced a production method that is currently popular in printing enterprises to develop strengths and circumvent weaknesses. Food packaging is divided into direct contact inner packaging and indirect contact outer packaging. Printing enterprises take a different approach when printing these two types of packaging. The two equipment are divided into two parts. One equipment prints the outer packaging with traditional solvent based ink, and the other equipment prints the inner packaging in direct contact with food with environmentally friendly water-based ink. This optimized combination can not only give play to the environmental protection performance of water-based ink, but also better solve the requirements of high reducibility of colorful food packaging. It is understood that Beijing Jinghua Printing Factory adopts this mode to produce food packaging

as consumers, they should also help environmental protection from the terminal. Dong Jinshi, for example, said that when many consumers eat food in fast food restaurants, they will place the food directly on the paper laid on the tray containing the food. However, the ink used in the printing of this kind of paper is not environmentally friendly. Consumers should improve their awareness of food safety and avoid unsafe consumption methods. For printing enterprises and even upstream food production enterprises, it is more necessary to reduce the use of non environmental friendly inks from the source

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