The most popular green food packaging printing

2022-07-27
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On March 31, 2006, the second printing and Environmental Protection Forum was held in Shanghai. On the occasion of the opening ceremony, the state issued the decision on implementing the scientificoutlookondevelopment and strengthening environmental protection. The decision clearly stated that "economic and social development should be coordinated with environmental protection, and a certain degree of environmental priority should be adhered to". The appearance of the printing Environmental Protection Forum, on the one hand, reflects the high social sense of Shanghai's printing industry, and is also the inevitable result of China's printing industry moving closer to the world. The author had the honor to listen to the attention and development trend of green printing from all walks of life. It touched a lot

at the end of last year, Nestle AG, the world's largest food and beverage producer, announced that it had recalled 2million liters of liquid infant l-c-milk products in some regions due to the leakage of ink from the outer packaging of its products. Previously, it had found a photosensitive chemical abbreviated as LTx (this chemical is usually used on the printing of milk packaging boxes) due to the liquid milk sent by the company for inspection Therefore, following the Sudan red incident last year, it has triggered a new round of food safety thinking. With the continuous improvement of domestic living standards, people pay more and more attention to the quality of life, the most critical of which is health. This has also become the focus of the whole society. As food packaging is too high and too low, we should not consider its packaging as much as possible, so it should reflect the characteristics of environmental protection. Therefore, the state has also issued a series of laws and regulations, such as the general guidelines for green food packaging, to regulate green food packaging

as a manager of food printing and packaging enterprises, the author shares with you the following contents according to the company's paper packaging practice and in combination with the international requirements and development trends for food packaging enterprises

raw materials for food packaging

at present, the paper directly in contact with food is generally required by customers and approved by relevant authorities. Among them, large international companies have higher requirements for printing and packaging enterprises, such as gPLP paper approved by FDA (the US Food and Drug Administration). The EU regulations on food packaging also came into force in January 2,2004. The regulations are applicable to all formed, Substances that may come into contact with food or may transfer their own components to food under foreseeable service conditions, including sensitive and intelligent packaging. Japan also legislates that packaging enterprises shall not use raw materials containing certain ingredients. Although there are famous brands such as Hongta Baika (food grade) in China, they must be recognized if they want to cooperate with large international companies; For the pad paper that does not directly contact with food, it is required to have no glitter agent composition; for machine lubrication, it is also required to have food grade lubricating grease

in addition, with the rapid development of science and technology, food packaging has become the development direction of modern food packaging. This kind of packaging has important environmental protection and economic value. At present, there are two kinds of edible paper abroad: ① take vegetables as the main raw material, paste them, shape and dry them; ② Gelatinize starch and sugar, add other food additives, and adopt the method similar to the papermaking process

2. printing method of food packaging

① flexographic printing + water-based ink: at present, flexographic printing + water-based ink is an environmentally friendly printing method with the fastest growth. It has spread to all fields. In 2005, a flexible packaging product in Gansu Province was found that benzene residues seriously exceeded the standard. Therefore, the relevant national departments will change the original recommended national standard into a mandatory national standard in 2006 and strictly restrict the use of Total benzene and solvent residues. Drug packaging has been restricted by GMP standards for a long time. Now food packaging is also facing a crisis. The occurrence of a series of events has further improved people's attention to food safety and food packaging safety. Therefore, food packaging enterprises should ensure the safety and reliability of the packaging they provide. In view of the particularity of food packaging, it is required that the printing process should be at least and in the shortest time.

this requirement is very consistent with flexographic printing. Because it can directly produce finished products online, it can reduce the potential pollution of multi process production and multiple turnover. With the invention of relevant new technologies and supporting products, flexographic printing has changed the shortcoming that it can only print words in the past. At present, it can well reproduce rich hierarchical products. Water based ink is also a kind of green ink developed to meet the requirements of environmental protection. At present, the water-based ink system has become mature, which can not only meet the international requirements for VOC emissions. It is odourless, but also has the characteristics of bright color of embossing and clear graphics and clear pictures when combined with flexible ei]6`i. in this regard, it is better than offset printing

② offset printing soybean ink: offset printing is considered to be the most mature printing method, but it still has great shortcomings in terms of environmental protection. At present, soybean ink is considered to be non-toxic and applicable, and the soybean itself is cheap, safe, with good printing effect and meets various standards, especially with excellent environmental protection. At present, one third of American newspapers have used soybean ink

3. choice of workplace

at present, in order to ensure the safety of food packaging, many printing and packaging companies have successively established sterile purification workshops to standardize the production of logistics and people flow, and implement food safety in all production processes

4. food safety system

in the United States, all relevant enterprises producing high-risk food, regardless of their size, must meet the standards of risk analysis and critical control point (HACCP) or good production management practice (GMP) system. However, different enterprises require different standards. In China, in recent years, more and more food packaging enterprises have passed the 7haccp~[]gmp system certification. The safety of food packaging is ensured through the standardization of these systems. In addition, customers will evaluate their food packaging suppliers every year, and some internationally renowned enterprises will also conduct third-party evaluation (blt~sgs.aib and other companies). These assessments are very strict. They are not only very helpful to improve the overall management level of food packaging enterprises, but also more effectively ensure the safety of food packaging production

5. production recall

recently, the first implementation of the food recall system in the food safety law (Draft) has aroused discussion. In fact, in the United States, the three-level recall method has been implemented for food: the first level recall of food that may cause consumers to get sick or die; the second level recall of food that will not immediately cause consumers to get sick but may cause consumers to get sick in the near future; the third level recall for non food safety reasons; the food packaging will be recalled in the same way because it will directly or indirectly contact with food. In addition, due to the influence of Sudan red incident, food packaging suppliers are also required to conduct virtual recall to straighten out the whole workflow, and complete the virtual recall of products selected by customers within 2/J \ h from time to time through corresponding data recording requirements. Customers will conduct inspection from time to time to determine the work of suppliers. Although there has been a recall form similar to that in the automotive industry, all the auxiliary materials should be traced back to the packaging products in large quantities. The amount that needs to represent this kind of resistance is called the next great effort of viscosity

6. employee training and supervision

the food safety system mainly depends on the implementation of employees. Therefore, food packaging enterprises have raised the training and supervision of managers to a higher level. Requirements for employees' wear during work: disinfection requirements for access to the toilet requires average time of hand washing. Therefore, effective consideration should also be given to these parameters in the selection. Disinfection requirements: equipment cleaning and disinfection requirements: for the user The key control requirements of physical/chemical/biological pollution, foreign matter management requirements in the production process, etc. all these highlight the strict front-line management, which has now tended to meet the same requirements as food processing enterprises

the mandatory national standard for moon cake packaging drafted by the China Federation of Commerce has been officially implemented since June 1, 2006. It is also the first national standard in Chinese product standards to make mandatory requirements for packaging. The key point of the standard is that the packaging materials must meet the requirements of environmental protection and food hygiene. With the improvement of living standards, people's growing material needs are increasing, which requires the society to provide more kinds of products. As the most basic food, the demand is also increasing, which provides more opportunities and new challenges for our food packaging enterprises. How to provide consumers with safe and reliable food packaging is a major issue facing food packaging enterprises all over the world

Wang Xianfang Printing Manager - Issue 7 of 2006

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