Double-Wall Cardboard Packaging with Hermetic Membrane Seal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current cardboard packaging for food products is not hermetic, fails to maintain temperature, and is inefficient in material usage, leading to issues with moisture and fat leakage, and is not suitable for long-term storage or transportation.
Innovation Solution
A laminated pulp-and-paper cardboard package with double walls and membrane corner elements that form a hermetic seal, allowing for extended heat retention and reduced material usage, featuring a simplified assembly process and adaptable design for various sizes and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-layer cardboard is used, then manufacturing is simple and cost is low, but hermeticity is poor and moisture/fat leakage occurs
Solution Approach 1:
The patent applies composite materials by combining pulp-and-paper material with a laminated layer to create a multi-layer package structure. This composite construction provides hermeticity and resistance to moisture and fat leakage while maintaining the simplicity of cardboard manufacturing processes.
2Temperature
If traditional single-layer walls are used, then material usage is minimal, but heat conservation capability is insufficient
Solution Approach 1:
The patent transitions from single-layer to double-layer walls by adding a dimensional layer. This double-wall construction creates an air gap that enhances thermal insulation and heat conservation capability while using reasonable amounts of additional material.
3Productivity
If traditional folding assembly is used, then assembly process is simple, but assembly time is excessive and efficiency is low
Solution Approach 1:
The patent applies preliminary action by pre-cutting the package blank with all necessary crease lines, fold lines, and opening lines marked before assembly. This pre-preparation enables faster assembly operations and improves productivity without compromising the simplicity of the folding process.
4Strength
If traditional cardboard material is used, then package is lightweight, but structural stability and rigidity are insufficient
Solution Approach 1:
The patent uses composite materials by combining pulp-and-paper material with a laminated coating layer. This composite structure enhances structural stability, rigidity, and resistance to deformation while maintaining the lightweight characteristic of cardboard packaging.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides increased hermeticity, prolonged heat conservation, durability, and lightweight properties, reducing assembly time while maintaining a pleasant appearance and minimizing material consumption.
Implementation Method 1
The package is manufactured of a pre-cut blank (form) of necessary size which comprises a bottom, double walls on each side, corner segments between the walls as well as additional profiled outline elements on the sides in the upper parts of the package walls
Implementation Method 2
double walls on each side... the external wall becomes the support of the entire structure and prevents the contact between the package bottom and the surface it is placed upon
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to the field of manufacturing packaging for primarily liquid, fatty food products or products containing or releasing fat and moisture. The result is a wider range of technical means and methods. A method for assembling packaging for food products consists in that a blank forms a flat bottom having fold lines, which separate the side walls of the packaging; double walls are formed, wherein the outer parts of the double walls, after folding, are a support for the entire packaging and for the insertion into said walls of shaped elements in the form of tabs, arranged at both ends of adjacent side walls, and angled elements situated between the side walls, closer to the bottom of the packaging, so as to form a hermetic membrane during assembly of the packaging. The packaging is manufactured from a cellulose paper base material and a laminated layer on the inner side of the packaging, which is in contact with the food products.