Adjustable Polymeric Bag Structure for Excess Air Reduction
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Solution Overview
Problem
Existing polymeric bags often have excess volume after sealing, allowing air to reside and compromising the preservation of perishable items.
Innovation Solution
A selectively sizeable polymeric bag design featuring interconnected sheets with connector elements that allow the bag volume to be adjusted to match the size of the contents, expelling excess air and maintaining freshness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a polymeric bag is designed with a fixed large volume to accommodate various items, then the bag can hold different sized items, but excess volume remains causing air to reside and compromising preservation
Solution Approach 1:
The bag is divided into multiple collapsible sections or panels that can be independently adjusted. Each section can be collapsed or expanded based on the size of items stored, allowing the bag to conform to different volumes while maintaining a sealable structure that eliminates excess air.
Solution Approach 2:
The bag incorporates dynamic, adjustable components such as expandable gussets, adjustable grommets, or flexible connectors that allow the bag volume to change based on content size. This enables the bag to transition from a fixed-volume structure to a variable-volume structure that adapts to different storage needs while minimizing air space.
2Object-affected harmful factors
If the bag volume is reduced to match item size, then air is eliminated and preservation is improved, but the bag structure becomes more complex with connector elements
Solution Approach 1:
The bag design allows users to easily adjust the volume by collapsing excess panels or sections without requiring complex tools or mechanisms. The structure itself provides the means for adjustment through pre-formed creases, flexible seams, or simple snap-connectors that enable user-friendly volume modification.
Solution Approach 2:
The bag utilizes flexible polymeric materials and thin-film construction that naturally allow for collapsing and conforming to different volumes. The flexibility of the material itself provides the volume-adjustment mechanism, reducing the need for additional rigid connectors or complex structural elements.
3Adaptability or versatility
If connector elements are added to adjust bag volume, then the bag can be selectively sized, but the manufacturing process becomes more complex
Solution Approach 1:
The bag is manufactured as pre-segregated modular sections or panels that can be easily assembled and connected. Each panel is produced separately using standard bag-making processes, then joined using simple sealing or connecting methods, maintaining manufacturing simplicity while enabling post-production volume adjustment.
Solution Approach 2:
The bag design uses universal connectors or sealing mechanisms that can accommodate different panel configurations and sizes. A single connector design works across multiple panel types and bag sizes, simplifying the manufacturing process by reducing the variety of unique components that must be produced and assembled.
Data Source
AI summary
A polymeric bag for storing items. The bag includes connector elements that can be connected together at different locations. The connection of the connector elements effectively reduces the volume of the bag so that it can more closely conform to the item stored in the back.