Pressurized Packaging System Using Inner Web Tension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional packaging methods, such as sealed pouches, often fail to provide sufficient mechanical protection while increasing bulk and weight, leading to higher costs and waste in the supply chain.
Innovation Solution
A flexible package design featuring a pressurized outer bag with gas-tight seals and an inner web that suspends the article within, using air or inert gases for protection, reducing the need for additional cushioning materials and minimizing packaging material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness or rigidity of the sealed pouch is increased to provide mechanical protection, then the protective capability is improved, but the weight and bulk of the package increase
Solution Approach 1:
The packaging system divides the protective function into two separate components: an inner pouch that provides product containment and an outer bag that provides mechanical protection and cushioning. This segmentation allows each component to be optimized for its specific function, enabling the outer bag to be made of lighter, more flexible material while still providing adequate protection.
Solution Approach 2:
The invention uses composite packaging structure combining an inner pouch material (such as foil or plastic) with an outer bag material (such as corrugated plastic or flexible protective material). This composite approach provides both the hermetic sealing properties of the inner pouch and the mechanical protection of the outer bag, achieving protection with reduced overall weight compared to using thick rigid material throughout.
2Strength
If cushioning material such as bubble wrap or expanded foam is added to protect the sealed pouch, then the mechanical protection is improved, but the bulk and weight of the package increase
Solution Approach 1:
The invention merges the protective pouch and cushioning elements into a single integrated packaging unit. The outer bag itself provides the cushioning function through its rigid or semi-rigid structure, eliminating the need for separate cushioning materials like bubble wrap or expanded foam that would increase bulk.
Solution Approach 2:
The outer bag is constructed from flexible protective material that can be thin yet still provide adequate mechanical protection and cushioning. This flexible shell approach replaces bulky rigid cushioning materials while maintaining protection capabilities.
3Device complexity
If conventional sealed pouches are used for packaging, then the packaging simplicity is maintained, but sufficient mechanical protection during handling or transport cannot be provided
Solution Approach 1:
The invention implements a nested packaging structure where the inner pouch is placed inside the outer bag. This nested arrangement allows the simpler inner pouch to be combined with the protective outer bag, achieving adequate mechanical protection while maintaining relative packaging simplicity through a straightforward two-layer design.
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 effective mechanical protection, reduces packaging material weight and waste, and allows for the use of recyclable materials, while maintaining product freshness through controlled atmospheres, thus lowering the carbon footprint and production costs.
Implementation Method 1
the web is maintained under sufficient tension by the pressure within the outer bag to suspend the article within the bag
Implementation Method 2
the web is maintained under sufficient tension by the pressure within the outer bag
Implementation Method 3
the pouch may be evacuated or filled with an inert gas or gaseous mixture, as may be desirable to prolong the shelf life of certain articles such as foodstuffs. The outer bag may itself be pressurised with an inert gas or gaseous mixture.
Data Source
AI summary
A package for an article (1) comprises a pressurized outer bag (5) having gas-tight seals (7) at opposite ends, and an inner web for supporting the article within the outer bag. The web extends along the length of the outer bag and is secured to the outer bag only at the gas-tight seals (7). The web is maintained under sufficient tension by the pressure within the outer bag to suspend the article within the bag and to maintain a space between the article and the outer bag on all sides of the article.