In the flexible packaging sector, the quality of the raw material and the printing are fundamental elements, but it is in welding department that the plastic film takes on its final shape and becomes packaging ready for use.
After the extrusion and, where applicable, printing phases, the material is processed in the welding department, one of the most important departments of the entire production process.
This is where the film reels in LDPE, HDPE and PP They are transformed into bags, envelopes and customized packages based on the customer's specific needs.
The role of the welding department
The primary function of welding is to join plastic materials through the controlled application of temperature and pressure, creating a strong, reliable, and long-lasting seal.
The quality of the welding is crucial to ensure:
- mechanical resistance of the packaging;
- safety during transport and handling;
- correct storage of the packaged product;
- ease of use for the end operator;
- efficiency of automatic packaging lines.
In Teamplast each process is studied to guarantee the best combination between functionality, aesthetics and production costs.
Lateral wire welding: precision and maximum internal capacity
The side seam seal is created on the sides of the bag using a very thin and precise seal.
This solution offers numerous advantages:
- greater internal capacity of the envelope;
- space optimization;
- better aesthetic presentation;
- reduction of material waste;
- high dimensional accuracy.
Due to these characteristics, it is often used to package fashion products, industrial components, small parts, accessories, and items that require neat and professional packaging.
Bottom welding with flat strip: robustness and reliability
The bottom seal instead features a wider sealing band positioned at the bottom of the bag.
This type is particularly suitable when the packaging must support greater weights or contain bulky products.
The main advantages are:
- high load resistance;
- greater robustness of the packaging;
- excellent resistance during transport and storage;
- adaptability to numerous industrial sectors.
For this reason, it is frequently chosen for technical packaging, spare parts, industrial products, construction items, and logistics applications.
The customizations that make the difference
The welding department doesn't just process plastic film. It's also where all the special processes that make the packaging perfectly suited to the customer's needs are performed.
Among the main customizations that can be made we find:
Micro-drilling
Micro-perforations allow for the controlled passage of air and are particularly useful for products that require breathability or to facilitate product sterilization or for certain automatic packaging phases.
Display holes
We create holes of various shapes and sizes to allow the product to be displayed in stores using hooks or dedicated displays.
Pre-cuts and easy openings
Pre-cutting systems allow the end user to open the package easily, quickly and safely without the use of tools.
Special welding
Based on the customer's needs, it is possible to develop customized configurations to meet specific production, logistical, or commercial requirements.
Custom formats
Each bag can be produced to the required dimensions, optimizing material usage and improving packaging efficiency.
Packaging designed around the product
Every industry has different needs. That's why at Teamplast, we don't offer standard solutions, but rather develop customized packaging by carefully studying the product, packaging methods, logistics, and end-use.
Thanks to the integration between extrusion, printing and welding, we are able to follow the entire production process and create flexible packaging in LDPE, HDPE and PP completely customized, both from a technical and aesthetic point of view.
Conclusions
The welding department of Teamplast It represents the final step that transforms a simple plastic film into a functional, resistant and ready-to-use packaging solution.
Whether it's a bag with a side seal to enhance the product or a package with a flat seal on the bottom to ensure maximum strength, the goal remains the same: to provide the customer with packaging designed to their real needs.
For this reason, the Teamplast welding department is not just a production phase, but a true customization center where every detail contributes to creating a packaging effective, functional and distinctive.
