Carton Liner Resealable Closure for Flat Shipping
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Solution Overview
Problem
Existing hybrid packages with flexible inner liners and outer cardboard boxes face difficulties in opening and reclosing, making it challenging to access and dispense contents efficiently.
Innovation Solution
A carton liner with a resealable closure, such as a zipper or hook and loop fastener, is integrated into a cardboard carton, allowing for easy access and reclosure by using a slider device or press-to-close mechanism, and the carton is designed to maintain a relatively flat configuration during shipping to prevent creasing of the closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hybrid structure with flexible inner liner and outer cardboard box is used, then barrier protection and damage protection are improved, but ease of opening and reclosing deteriorates
Solution Approach 1:
The closure system is segmented into separate components: a closure member attached to the liner at the first end, and a closure member attached to the carton at the second end. This segmentation allows independent optimization of the closure mechanism while maintaining the hybrid structure's protective benefits.
Solution Approach 2:
A closure member acts as an intermediary element between the flexible liner and the rigid cardboard box, enabling easy opening and reclosing operations while preserving the barrier and damage protection properties of the hybrid structure.
2Productivity
If the carton is flattened for shipping, then shipping efficiency and space utilization are improved, but the closure may become creased or damaged
Solution Approach 1:
The closure system is divided into separate members attached to different components (liner and carton), allowing the carton to be flattened for shipping while the closure members remain intact and functional.
Solution Approach 2:
The closure members are positioned and secured in advance during assembly, protecting them from creasing or damage during the flattening process for shipping.
3Stability of the object's composition
If the closure is attached to both liner and carton, then closure stability is improved, but device complexity increases
Solution Approach 1:
The closure system is segmented into distinct members: one attached to the liner and another to the carton. This segmentation achieves stable closure functionality while simplifying the overall structure by avoiding complex integrated designs.
Data Source
AI summary
A package has a carton with a liner with a recloseable closure. The package is shippable as a relatively flat carton blank.