Referring to packaging, it is an important item and is widely used in today's life. And on the market there are many different types of packaging, but not everyone knows what complex packaging is. So today's article we would like to explain thoroughly. Make sure to help you better understand this complex packaging with some information related to it.
1. What is complex packaging?
Complex packaging is a type of packaging used for the purpose of containing products, goods or food for humans. It is therefore required that it be designed in such a way that it does not affect the quality of the products or goods inside.
Specifically, complex packaging is a special type of packaging made up of many different layers of materials combined to form. Those materials can be aluminum, PE, PP or paper. Thanks to the combination of materials with different properties and functions, it will create a type of food packaging with its own characteristics. However, it is guaranteed to bring smooth surface, beautiful and diverse ink colors to meet the maximum needs of customers.
At the same time, although looking at the complex packaging initially, it can be seen that it is a bit fragile, but extremely durable. It is also resistant to impact in certain cases. This type of packaging provides 100% water resistance.
2. The structure of the complex packaging
Complex packaging is made from materials such as BOPP / PE, PA / PE or CELLO / OPP. And at the same time its structure is as follows:
Different polymer layers are used as a barrier, welding layer, structural layer or bonding layer.
- The structural layer of the composite packaging ensures essential mechanical properties as well as easy printing properties and also has moisture resistance.
- The bonding layer is the glue with thermoplastics and it is used to combine different materials of different nature.
- The barrier layer is used for special requirements and at the same time it helps to block gas, keep odors such as AL, PA, PET ...
- The welding material layer is often used with a mixture of PE or LLDPE.
3. Features of complex packaging
This type of packaging possesses the following distinctive characteristics:
- Contains multiple layers put together.
- The laminated films have different structures but in general it brings the best product for users.
- There are 2 types that are laminating the inner structure with the printed film.
- Smooth surface, beautiful ink colors and more diverse than other packaging types.
- Can be used to store many different types of goods and products.
The use of complex packaging like?
Complex packaging is considered as the soul of the product because it brings the aesthetic beauty and appeal of the product. On the other hand, materials such as PA, A1 or MPET also play an important role in preserving products inside. It will help to retain product properties right from the moment of packaging. This will prevent undesirable chemical reactions from occurring.
In addition, with complex packaging, thanks to the advantages of product protection and delicate beauty, it is used in many different fields. It can be mentioned as frozen goods, cosmetic chemicals or plant protection drugs.
4. The method of creating complex packaging
There are many ways to create complex packaging and among them we can mention some of the common methods as follows:
- Using adhesive to join together two or more films. Then coat the material with another material that exists in the molten form, then let it cool and harden.
- Or companies can also use 3 methods of lamination of complex packaging as follows:
+ Extrusion laminating will include single extrusion, pull extrusion, pre-extrusion or post extrusion.
+ Dry grafting will include solvent free grafting, solvent free grafting or combination grafting.
+ Wet hating is glue grafting technology, which means that when joining, two layers of material will link together through a liquid adhesive (glue).
Currently, solvent-free grafting is a highly advanced and advanced laminating technology. It is quite popularly used in the manufacturing of complex packaging.
Thus, all of the information we present from the above article has helped you to better understand what complex packaging is and some related issues.
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