Pops always come and go, and inadvertently, the various pops next to you may have gone several times. As a popular type in the industry, the packaging structure of flexible packaging seems to have more vitality, because it takes a long time to change. The following are some flexible packaging structures that have occurred or are undergoing changes.
1. There are more ways to open the packaging box and it is easier to operate. Compared with before, the current packaging box will use some small accessories to make the switch. Like some zipper of the standing bag, there is no need to tear the packaging bag during use, just unscrew it. There have also been major advances in machinery. With the increase of functions, we can provide one-stop service from filling to packaging in the shortest time.
2. Clear high barrier film. The barrier properties of the new generation of clear films and coatings are beginning to approach that of metal flakes and aluminized films. It provides an opportunity to display, so that people can intuitively see those very appetizing food. This packaging structure is also convenient for heating food in the microwave.
3. First choice packaging for new products. After years of development, it is generally believed that flexible packaging will sweep all products. Typical examples are tuna and pet food. After decades of canned packaging, sterilizable bags are popular. Recently, baby food glass bottles have also been replaced by sterilizable packaging bags.
4. One step faster than others. Since it is no longer a novelty to pack ketchup in a larger, flexible stand-up bag, the small bag packaging of other condiments is not far away. The success of test marketing in Europe, Asia and Latin America proves that this is a miracle. The new packaging for shampoo and laundry detergent was introduced when the time was right, as was the canned fruit.
5. The global oatmeal flexible packaging industry is moving slowly. Whether in the low-end or high-end market, flexible packaging has entered the sight of cereal manufacturers. But experts admit that if they want to change to flexible packaging in a short time, manufacturers will invest a lot in packaging machinery. And, although renewable resources have many advantages, it is unlikely that flexible packaging materials will be replaced directly with recycled cardboard. Mainly because flexible packaging does not mean that consumers across the country will accept it, especially Americans.
6. There will be more layers in compound extrusion. Upon hearing it, I feel that this statement is wrong. In fact, adding a layer to the flexible packaging structure can play a role in saving costs and increasing performance. what happened? It requires more precise control of the layer. The 3-5 layer film composite extrusion production line is subject to the size of the extruder and the design of the die. The 7-9 layer composite extrusion line can produce thicker flexible packaging materials with better performance, and because there is no need to design the structure again, the cost will be lower. One is to use cheaper resin as the expansion layer. Another is to separate the moisture-proof layer into two thinner layers, one of which is reserved to prevent pinholes from connecting with other layers. This method will also increase the number of moisture-proof surfaces, thereby further reducing the permeability. There are various techniques to separate the moisture-proof material into many layers, and there are data showing a linear improvement in the waterproof performance.
7. Appropriate flexible packaging shape. Contemporary packaging styles can design more shapes than before. Consumer packaged goods companies are eager for new packaging shapes, and it is important for them to highlight the products on the shelves. The shape of the standing bag, which almost subtracts two curved spaces, is no longer popular, although almost all the machines of the outside machinery company are producing this kind of conical standing bag. At the same time, as the shape of the standing bag becomes more complicated, how to suppress design waste is a challenge to be faced.
8. Extensive impact of packaging bags. Because the structure of the packaging bag can be customized according to the requirements, many new physical structures of the product have emerged: liquid, viscous, powder, granular and particulate. As a result, there is an intersection between products, including food and beverages, cosmetics, health care, pet food, automobiles, drugs and agricultural products. At present, the filling speed of flexible packaging has not reached the speed of common packaging boxes, but the gap is decreasing, especially in the field of dry products.
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