As a popular one in the industry, the packaging structure of flexible packaging seems to have more vitality because it takes a longer time to change. Below are some flexible packaging structures that have occurred or are changing.
There are more ways to open the box and it is easier to handle. Compared with the past, the current packaging box will use some small accessories as switches, such as the zipper of some stand-up bags. When using, there is no need to tear the packaging bag, just unscrew it. There have also been significant advancements in machinery, with increased functionality allowing one-stop service from filling to packaging in the shortest possible time.
Clear high barrier film. The barrier properties of the new generation of clear films and coatings are beginning to approach those of metal flakes and aluminized films. It provides an opportunity to display, so that people can visually see those very appetizing food. This packaging structure is also convenient for food to be heated in a microwave oven.
Packaging for new products. After years of development, it is widely believed that flexible packaging will sweep all products. Typical examples are tuna and pet food, where sterilizable bags have become popular after decades of canning. More recently, baby food glass bottles have also been replaced by sterilizable bags.
One step faster than others. Now that packing ketchup in larger, stretchy stand-up pouches is no longer a novelty, pouches for other condiments aren't far behind. The successful test-marketing in Europe, Asia and Latin America proved to be a miracle. New packaging for shampoo and laundry detergent comes when the time is right, as are fruit cans.
The global cereal flexible packaging industry is moving slowly. Whether in the low-end or high-end market, flexible packaging has entered the attention of cereal manufacturers. But experts admit that if they want to change to flexible packaging in a short period of time, manufacturers will invest a lot in packaging machinery. And, despite the many advantages of renewable resources, direct replacement of flexible packaging materials with recycled cardboard is unlikely. Mainly because flexible packaging is not meant to be accepted by consumers across the country, especially Americans.
There will be more layers in this part of the coextrusion. When I heard it, I felt that this statement was wrong. In fact, adding layers to the flexible packaging structure can save costs and increase performance. what happened? It requires more precise control over layers. The 3-5 layer film composite extrusion production line is limited by the size of the extruder and the design of the die. The 7-9 layer composite extrusion line can produce better performance, thicker flexible packaging materials, and because there is no need to redesign the structure, the cost will be lower. One is to use less expensive resins as intumescent layers. Another is to separate the moisture barrier into two thinner layers, one of which is spare in case pinholes connect to other layers. This approach also increases the number of moisture-resistant surfaces, which further reduces penetration. There are various techniques to separate the moisture-resistant material into many layers, and there are data showing a linear increase in waterproofing performance.
Appropriate flexible packaging shape. Contemporary packaging styles can create more shapes than ever before. For CPG companies craving new packaging shapes, products that stand out on the shelf are very important. The shape of the stand-up bag with almost two curved spaces is out of fashion, although almost all of the machines outside the machine company produce this type of conical stand-up bag. At the same time, with the more complex shapes of stand-up bags, how to suppress design waste is a challenge that needs to be faced.
Widespread impact of packaging bags. Because the bag structure can be customized according to requirements, many new product physical structures have emerged: liquid, viscous, powder, granular and granular. With that comes the intersection of product and product, including food and beverages, cosmetics, healthcare, pet food, automotive, pharmaceuticals, and agricultural products. The filling speed of flexible packaging has not yet reached the speed of common boxes, but the gap is closing, especially in the field of dry products. The low-carbon environmental protection storm has spread to the packaging industry
In recent years, the global low-carbon environmental protection storm has spread to the packaging industry, and the concept of low-carbon packaging has been put forward. Etc., replacing wood with paper is the core of low-carbon packaging. The recycling of waste paper not only reduces the amount of wood used, cuts down trees, protects the ecological environment, but also saves energy, water and emissions. Enterprises need to fully consider social responsibility in product development, and focus on the theme of green packaging. The developed packaging materials can be recycled, recycled or degraded, and will not affect the human body and the environment during the entire life cycle of the product. Under the premise of satisfying the packaging function, the amount of waste generated is minimized, so that the packaging film and materials are developing in the direction of lightweight and thin film. At present, the ban on the use of EPS foamed plastic gaskets has forced Chinese enterprises to eliminate foamed plastics in the packaging of exported home appliances and use environmentally friendly gaskets such as honeycomb cardboard. Honeycomb paperboard is an environmentally friendly and energy-saving material with a new sandwich structure composed of high-strength honeycomb paper core and various high-strength kraft papers. It has the advantages of low cost, less material, sound absorption and heat insulation, high strength, and good impact resistance. . Honeycomb cardboard is all made of recyclable paper, which can replace wood and can be recycled and reused after use.
At present, my country's packaging machinery products have few varieties, low technical level, and poor product reliability, and have no advantages in the international market. More than 80% of processing and packaging equipment are imported, facing the development of deep processing of agricultural products, building a conservation-oriented society, and developing a circular economy. The market for packaging machinery products is very broad. If packaging machinery companies can speed up technological innovation and adapt to market demand, they will gain considerable profits.