Reclosable Bag With Segmented Inner Liner For Detergent Sealing
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Solution Overview
Problem
Existing reclosable bags for granular detergents often fail to form a reliable seal due to contamination with the contents, leading to leakage and instability during handling and storage.
Innovation Solution
A flexible bag with a mechanical hook and loop fastener system is designed, where the fasteners are applied to the bag material to ensure a secure seal, with specific particle size control of the detergent composition to minimize contamination and optimize sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical fastener is used for reclosing the bag, then the bag can be securely reclosed after opening, but the fastener can fail due to contamination with bag contents
Solution Approach 1:
The bag is divided into two separate compartments: an inner bag containing the detergent particles and an outer bag containing the mechanical fastener. This segmentation prevents the particles from directly contacting the fastener, eliminating contamination while maintaining reclosing functionality.
Solution Approach 2:
The inner bag acts as an intermediary barrier between the detergent particles and the mechanical fastener. By placing the fastener on the outer bag and the particles inside the inner bag, the inner bag mediates the interaction, preventing direct contact and contamination.
2Quantity of substance
If the bag contains fine particles, then the detergent composition is more effective, but the particles contaminate the reclosing means preventing reliable sealing
Solution Approach 1:
The bag structure is segmented into inner and outer bags, with the fine detergent particles confined to the inner bag. This allows the use of fine particles for effective detergent composition while preventing them from contaminating the fastener on the outer bag.
Solution Approach 2:
The inner bag serves as an intermediary containment layer that holds the fine detergent particles, preventing them from reaching the mechanical fastener on the outer bag and interfering with seal formation.
3Ease of operation
If the bag is made flexible for handling, then the bag is easier to use, but the bag may open during handling and storage
Solution Approach 1:
The mechanical fastener is pre-applied to the outer bag during manufacturing, creating a secure closure mechanism before the product is used. This preliminary action ensures the bag resists opening during handling and storage while maintaining flexibility for consumer use.
Solution Approach 2:
The mechanical fastener provides self-service closure functionality, allowing consumers to easily open and reclose the bag multiple times without requiring additional tools or complex mechanisms, while maintaining secure sealing.
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 a reliable, reusable seal that prevents leakage and maintains product integrity, ensuring the bag can be securely closed and opened multiple times without spillage, even when tipped on its side.
Implementation Method 1
a reclosing means comprising a mechanical fastener, the mechanical fastener comprising interoperating hooks and/or loops
Data Source
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AI summary
The invention relates to a reclosable packaging comprising: - a bag (10) comprising a reclosing means (32) and - a granular product comprising less than 10% by weight of undersized particles having a geometric mean particle diameter of at most 150 micrometers.