When a professional packaging arrives unexpectedly, when an art catalog is deformed during transport, or when a regal packaging loses its shape under the weight of its storage, there is rarely a problem with its aesthetic: it is structural. The structural engineering of packaging, over the structural engineering of packaging resistance, is the discipline that transforms a creative project into a physical oggetto capable of sustaining all the logistics, all the distribution chain and all the expectations of the final consumer.
For the house of luxury, premium brand and art publisher, this discipline is not a technical definition: in the necessary conditions it is worth perceiving the product at the moment of the final product to the recipient.
Ingegneria strutturale packaging resistenza (structural engineering packaging resistance) | Guide
Reading time: ~10 min
- Riepilogo
- It’s about the structural engineering of packaging
- I fattori determine the resistance
- I main laboratory test for structural validation
- Impossibility and ottimizzazione per lo stoccaggio
- Luster packaging system: structural impression
- FEM simulation: when it is used and the results are as expected
- Structural resistance and stability: a possible balance
- Structural packaging comes with brand value
- FAQ
Riepilogo
- The structural engineering of the packaging defines materials, geometry, wear and tolleranze to guarantee protection and visual integrity.
- Resistance depends on a complete system: material, strength, geometry, environmental conditions and environmental conditions.
- I test the main laboratory with the Box Compression Test, it tests the battery and the climatic test, which is subject to precise temperature standards.
- Humidity is one of the most critical for the mechanical resistance of the cardboard and the richness of certain specific materials.
- The opening system of the luxury packaging (clamshell, cassette, book, magnetic, with nastro) has a direct impact on the structural architecture.
- The FEM simulation will accelerate the speed of the cycle by reducing the number of necessary prototypes.
- Resistance and stability are not subject to opposition: a good structural design is possible.
It’s about the structural engineering of packaging
The structural engineering of the packaging is the discipline that defines the physical architecture of the packaging: the scelta of the material and its grammar, the design of the fustella, the pieghe and the structural chisel, the insertion of protection, the product tolerance and the compatibility with the line of di automated configuration. It does not simply make a robust scat, but it has a system in which all elements contribute to the protection of the product, to the industrial fattibility, to the aesthetic consistency and to the logistical efficiency.
Structural engineering in luxury packaging
Nel contesto del luxury packaging, this discipline assumes an aggressive dimension: the packaging must be resistant to transport and storage but may lose its formal precision, due to deformation, but at a minimum, it is perceived as a signal of inferior quality. A rigid box for a house of spirits or a box for a limited edition of materials will not be affected by structural conditions born from an imprecise aperture. Structural planning is based on the convergence of engineering, materials and brand experience.
I fattori determine the resistance
The resistance of a vehicle does not depend on a single parameter, but on an interdependent variable system. Understanding this complexity is the first step in providing packaging that performs well with all the distribution lines.
The material and its mechanical property are subject to change. The cardboard is very rigid and used in premium packaging with several characteristics of undulated cardboard which is not packaged with specifications: grammar, rigidity and flexibility, resistance to lacerations and thermal behavior vary significantly. The condition of the substrate must be consistent with the anticipated operating conditions.
The load and the geometry of the vehicle impact directly on its vertical support capacity. A scatola with optimized geometry is distributed in uniform mode, avoiding concentration of tension without critical points like angoli and chiabrasion. The internal support structure, such as the insert of the protection or division, subsequently increases the rigidity, which is compres- sible, which necessarily increases the weight.
The production tolerance is a serious condition: there is also minimal variation in the fustella tags or some minor changes that may compromise the resistance of the final structure and its compatibility with the automated configuration line. Ultimately, the environmental conditions during transport and storage - in particular humidity and temperature - are influenza in mode determining the mechanical properties of the cardboard.
How moisture is influenced by the mechanical resistance of the cardboard
Humidity is one of the worst insidiousness of the resistance when packaged in a cardboard box. When the cardboard absorbs moisture, the cellulosic fiber if swollen and loses rigidity, drastically reduces the resistance to vertical compression. This window is particularly critical during maritime transport or in non-climate-controlled storage environments.
There thermal resistance of a package Depending on the surface of the material, the surface treatment of the application (such as the barrier coating) and the protection of the wear, it must limit the humidity in the most vulnerable area. For packaging intended for air conditioning or air conditioning, the structural validation must include a specific climatic test to simulate the actual conditions of use.
I main laboratory test for structural validation
The validation of the resistance of a package if it is based on a standardized test, it is possible to program it to simulate a specific stress condition that the package fails to survive. The main test standard is ISO 12048 for compression testing and ASTM D4169 for the simulation of transport conditions, including ISTA which defines complete protocols for validation of in-transit performance.
Typology of testing and applications
| Test | Reference standard | Cosa misura | Typical application |
|---|---|---|---|
| Box Compression Test (BCT) | ISO 12048 | Vertical resistance (imperilability) | Packaging for storage and palletization |
| Ring Crush Test (RCT) | ISO 12192 | Resist the compression of the corrugated cardboard | Packaged in a corrugated cardboard box |
| Caduta test | ASTM D4169 / ISTA | Resistance agli urti during movement | Packaging for e-commerce and international shipping |
| Climatic test (humidity and temperature) | ASTM D4169 | Igrothermal behavior of the material | Packaging for export and air conditioning |
| Vibration test | ASTM D4169 / ISTA | Resistence of all transport conditions | Fragile products, luxury packaging |
He Box Compression Test is the standard test to assess the reliability of the packaging: put the maximum force on a scatola that can be supported primarily under a vertical frame. This data is fundamental for packaging protection that must be palletized in safety during storage and transport. The Ring Crush Test is designed to be specific to the corrugated cardboard and determines the compressive strength of the material, regardless of the geometry of the scat.
I test the vehicle simulano if there are any accidents during the movement, including the test of vibration reproduced by the driver type of the transport on the road, on the road or via air. I test the climate here, in fine, sponge the packaging under conditions to control the temperature and humidity to assess the thermal resistance at the time.
Good to know — The ASTM D4169 standard does not define a single test, but a complete protocol that combines the current test sequence, vibration and compression to simulate a distribution cycle. A second valid packaging protocol has determined that the property is resistant in conditions depending on the reality.
Impossibility and ottimizzazione per lo stoccaggio
Impairability is the capacity of a package to support the weight of the package during storage and transport in pallets. In the luxury packaging, this is required to be in tension with the aesthetic requirements: a rigid cover with magnetic aperture or with a cassette system with geometry and chipping that can create a structural relief in the proper area in greater demand in the vertical frame.
Optimize impilability means that you need more livelli at the moment: the rigid cardboard box with the appropriate grammar, the angle of the angle through the geometry of the fustella, the design of internal inserts and the distribution of the carico, and the definition of a palletized piano it has the correct orientation of the scatole. L'ECMA (European Carton Makers Association) and FEFCO (Federazione Europea dei Produttori di Cartone Ondulato) provide catalog of information with standard geometry that is validated by various logistic scenarios.
Luster packaging system: structural impression
The aperture system has one of the most detailed elements of the packaging and has a direct impact on the structural architecture of the package. Ogni tipologia di apertura richie de soluzioni ingegneristiche specifiche e introduce vincoli precisi si ella progettazione della fustella. The main systems that use premium sound packaging include:
- Apertura a clamshell (coperchio incernierato): It contains a certain structural precision that must maintain its functionality even if it is a hundred times aperture, while allowing careful production to avoid distortion or deformation.
- Cassette system (trundle drawer): Compost an external container and a sealed internal container, have a precise control of the total dimensions to guarantee fluid leakage if necessary.
- Book opening: tipica dei cofanetti editoriali and dei packaging per gioielleria, prevede una struttural rilegatura che must resistere alle citazioni ripetute senza delaminarsi.
- Magnetic closure: There is an integrated magnet in the cardboard structure, there must be an attempt to prevent the magnetic force from compromising the integrity of the panel or creating interference with the product content.
- Nastro di apertura (tear strip): Elegant solution for stylish packaging, with a precise fustella that guarantees a line of straps that will not damage the complete structure.
In any case, the aperture system must be validated not only for its functionality but also for its contribution to the structural resistance of the system: a poorly programmed device may divert the point of the interior interior from the inside. To find out more about the configuration options available, you can consult the dedicated section premium delivery solutions.
FEM simulation: when it is used and the results are as expected
The numerical structural simulation, and in particular the analysis of the finite element (FEM, Finite Element Method), has transformed the circulation of the packaging to allow for deformation, critical analysis and behavior as soon as possible to build a physical prototype. This will reduce the number of necessary iterations, accelerate the time-to-market and reduce the cost of delivery.
Benefits and limits of FEM simulation
Uno academic studio ha dimostrato che The FEM analysis can correct the mass deformation of the packaging structure of the 12.4% appreciate all the adoption of a new ad arco design. At the same time, the BCT simulation can be connected to the 95% with a realistic test, render this instrument suitable for the preliminary design iteration. The FEM simulation allows you to optimize the structure in relation to the weight: it is possible to identify the extra-dimensional zone that does not reduce the weight of the cardboard if it loses its resistance, contributing to the cost of the adjustment of the ambient impact.
However, the digital simulation does not replace the physical test in the final validation phase: the real properties of the materials, the productive variability and the actual environmental conditions are introduced into which the digital model is approximate and not fully replicated. The optimal flow of water requires the use of the FEM simulation for the design and optimization process, following the validation of the initial industrial prototype.
Key points to remember — «More resistant» packaging does not require the best solution: increase the weight of the cardboard or multiply and increase the cost, weight and consumption of the material. The structural engineering objective is to find the optimum balance for resistance, weight, cost and stability.
Structural resistance and stability: a possible balance
One of the most important components in contemporary packaging engineering is to reconcile structural resistance with environmental impact pollution. This is due to the fact that you are aware of it as a contraddittori, but a rigorous engineering approach shows otherwise: a packaging that is designed structurally uses only a small material of one size to compensate for the debolezze products.
Optimization of structure and weight makes it possible to simulate FEM and deepen the mechanical properties of the material, allowing you to adjust the weight of the cardboard to maintain rich performance. At the same time, the quality of the FSC certified material and its compatibility with the offset stamp does not compromise the mechanical properties of the substrate and are properly integrated into the correct packaging cycle.
Per chi lavora nel settore dell'’editoria d'arte et delle edizioni di pregio, this balance is particularly relevant: the design and editorial packaging must respond to an elevated aesthetic standard that maintains an environmental profile that is responsible for all of the product lines.
Structural packaging comes with brand value
The structural engineering of the packaging is more of a technical requirement: it guarantees an ambitious creative project that maintains its integrity throughout the entire chain, in the final production all the hope of the final destination. Protect the resistance by informing your material, geometry, aperture system and test protocols, and verify your system with combined digital simulation and physical validation instruments.
In the case of Maestro Premium Printing, the packaging engineering process is not supervised by the manufacturing process nor the production site, and you agree to verify the consistency of the structural design and its concrete execution. This direct stability allows you to anticipate technical incompatibilities between the structural design and the production line, avoiding slippage and guaranteeing conformity with the production requirements. Per i brand del usso, this discipline is an integral part of the value of the product: a packaging that is structurally not only a logistical problem, but a danno al brand.
To deepen the solutions available or seek technical advice, it is possible contact the Maestro team directly.
FAQ
What is the difference between the cardboard and the corrugated cardboard in the luxury packaging?
It is a sturdy, rigid cardboard box that is ideally used for premium packaging, offering high quality stamp surface and high rigidity at parità di spessore. The corrugated cardboard, thanks to its internal wave structure, offers superior resistance and is preferred for shipping packaging or for packaging that is supported by low pressure loading. The price depends on the balance between aesthetics, logistics and cost.
Is the perched fustella important for structural resistance?
The fustella is the stamp that defines the tag and the edge of the cardboard to give the final shape of the package. A precisely programmed fustella determines the position of the structural trap, the angle and the chisel line. Error in the programming of the fuse if it is translated directly into structural deflation that may compromise the complete resistance of the ballast.
How do you calculate the mass number of packages stored in a pallet?
It is calculated based on the value of the Box Compression Test (BCT) of the package, which indicates that it is as strong as possible first of the cement. In this case, a safety coefficient is applied that maintains humidity conditions, storage durability and production variability. The result is that the mass number of the layers is safe, it must be possible if the pallet is on the pallet and it is stored on the shelf.
When is it mandatory to test the packaging?
The product is generally richly tested when the packaging is intended for direct delivery to the final consumer (e-commerce), when it contains fragile products or of high value, and when it contracts with customers or large-scale buyers requires compliance with specific standards such as ASTM D4169 or ISTA protocols. In the packaging for export, this test is an integral part of the supplier's qualification file.
Is it possible to certify the resistance of a packaging that has a physical test effect?
No: the FEM digital simulation is a powerful tool to optimize the preliminary design, but it is not intended to be a physical test for the final validation. The international standard such as ASTM D4169 and ISTA protocol provides its test documentation in accordance with the resistance certification. The simulation requires the prototype number to be necessary, but the physical validation requires the initial industrialization.
How does the appearance of the system influence the cost of packaging production?
The aperture system is more complex, like the magnetic chip or the aperture a cassette with tolleranze strette, richiedono fustelle more elaborate, materiali aggiuntivivi (like the magneti) and quality controllà more frequenti in production. If you increase the unit cost, my contribution is also to the perceived value of the packaging. The value of the investment depends on the influence of the viewing system on the consumer's expectations and brand position.