Recently, problems have been detected in cold-chain foods and their inner and outer packaging in many places one after another. This situation has triggered high attention from the entire industry to the packaging of fresh food. Currently, most of the packaging materials for fresh products with good sealing performance can, to some extent, isolate external pollution.
Recently, problems have been detected in cold-chain foods and their inner and outer packaging in many places one after another. This situation has triggered high attention from the entire industry to the packaging of fresh food. Currently, most of the packaging materials for fresh products with good sealing performance can, to some extent, isolate external pollution. However, there are still obvious deficiencies in terms of safety and freshness preservation. The combination of tray packaging materials with vacuum and modified atmosphere preservation packaging technologies has significantly enhanced the freshness, safety, and sealing performance of fresh products.
With the rapid upgrade of the consumption diet structure and the continuous improvement of residents' income levels, consumers' requirements for fresh products are becoming increasingly stringent, and the frequency of fresh food demand has increased significantly. Driven by this high-frequency and strong demand, since 2013, the scale of the domestic fresh food market has always maintained a growth rate of more than 6%. Especially during the Spring Festival in 2020, affected by special circumstances, fresh food e-commerce has become the main way for residents to buy fresh products while "staying at home", and the scale of the fresh food market reached 2.16 trillion yuan that year.
In the past, farmers' markets have always been the main channels for fresh food sales. However, with the in - depth penetration of the "Internet +" concept in all walks of life, fresh food products, as daily necessities, have shown great development potential when adopting the e - commerce sales operation model. Nowadays, some fresh food e - commerce enterprises have used modern information technologies such as artificial intelligence to continuously improve the logistics supply chain. By continuously improving logistics technologies and launching intelligent logistics systems, they have successively launched innovative services such as home delivery services, intelligent drone delivery, "driverless" intelligent supply chains, and robot delivery, greatly optimizing the user's shopping experience.
Whether it is the traditional farmers' market fresh food sales channels or the intelligent fresh food new retail model, the entire process of fresh products such as vegetables, fruits, meats, aquatic products, and egg products from the origin to the dining table is inseparable from food packaging materials. As an important protective barrier to isolate fresh ingredients from pollution and achieve freshness preservation, most packaging materials with good sealing performance can indeed isolate external pollution to a certain extent. However, the incidents of detecting problems in cold-chain foods and their inner and outer packaging in many places across the country recently have prompted the industry to pay more attention to packaging materials.
Looking at the current outer packaging forms in the market, the packaging of fresh foods such as fruits, vegetables, and meats mainly includes ordinary plastic bag sealing, tray + plastic wrap winding, and tray + heat - sealing film. In order to reduce costs, most major supermarkets and fresh food O2O platforms use the method of ordinary plastic bag sealing to package fresh products such as vegetables. This method can, to some extent, isolate external pollutants, but its freshness preservation and safety performance are poor. In the current context where food safety is highly concerned, it is difficult to meet consumers' requirements for food safety and freshness.
Compared with the ordinary plastic bag sealing method, the tray + plastic wrap winding form can reduce the probability of extrusion and collision between fresh products and also play a certain role in isolation and freshness preservation. However, this packaging method cannot achieve completely sealed preservation of fresh food, and its safety is relatively limited. The tray + heat - sealing film packaging method, on the other hand, adopts advanced vacuum and modified atmosphere technologies, and is equipped with packaging machinery such as vacuum skin packaging machines and modified atmosphere packaging machines. This not only extends the freshness preservation period and shelf life of fresh products but also significantly enhances the sealing and safety of product packaging.
