Bag Packaging With Detachable Reinforced Cover
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Solution Overview
Problem
Existing polymer-based bag packaging for solid powdered and bulk materials lacks efficient closure and easy-opening mechanisms, leading to fragile packaging prone to damage during transport and handling, and does not facilitate reuse without compromising integrity.
Innovation Solution
A bag or sack-like packaging made of polymer material with a detachable cover, where the cover is reinforced with a higher grammage and density than the body, securely attached via adhesive means, allowing for easy opening and reuse without cuts or tears, and designed to withstand heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bag is made with standard polymer material and closure method, then the manufacturing cost is low and the structure is simple, but the packaging becomes fragile and prone to damage during transport and handling
Solution Approach 1:
The packaging is divided into two distinct parts: a standard polymer body and a detachable cover made of reinforced material. This segmentation allows the cover to provide enhanced strength and protection during transport, while the body remains simple and cost-effective. The cover can be detached at the destination, enabling reuse of the bag without compromising the protective function during transit.
Solution Approach 2:
The packaging combines two different materials: standard polymer material for the bag body and reinforced material (such as woven polypropylene or high-density polyethylene) for the detachable cover. This composite approach allows each part to be optimized for its specific function - the body for flexibility and cost-effectiveness, and the cover for strength and protection during handling and transport.
2Reliability
If the bag is designed with reinforced closure and detachable cover, then the resistance and safety during transport are enhanced, but the manufacturing complexity and cost increase
Solution Approach 1:
The detachable cover is pre-attached to the bag body using adhesive means during manufacturing, ensuring proper alignment and secure bonding before the bag enters circulation. This preliminary action guarantees that the reinforced cover is correctly positioned and firmly attached, providing reliable protection during transport without requiring complex assembly procedures at the destination.
Solution Approach 2:
Adhesive means are used as an intermediary to bond the detachable cover to the bag body. This adhesive layer provides a strong yet manageable connection that ensures the cover remains securely attached during transport and handling, while still allowing for clean detachment at the destination without damaging either the cover or the bag body.
3Ease of operation
If traditional closure methods are used, then the manufacturing is simple, but the bag cannot be easily opened for reuse without cutting or tearing
Solution Approach 1:
The closure system transitions from a static, permanent seal to a dynamic, reversible attachment. The detachable cover can be easily removed and reattached multiple times, allowing the bag to be opened and closed as needed. This dynamic system maintains the integrity of the bag body while providing flexible access to the contents for reuse scenarios such as refilling or partial consumption.
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 packaging provides enhanced resistance and safety during transport and handling while enabling easy opening and reuse, maintaining integrity even with heavy loads, and withstanding drops without breakage.
Implementation Method 1
The detachable cover is securely attached via adhesive means
Data Source
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AI summary
The present invention refers to a bag or sack-like packaging (1), made of polymer material, idealized for packing, transporting and handling of solid powered and/or bulk materials, and provided with a detachable cover (5) which, besides providing safety and guaranteeing the resistance required for transporting and handling the loaded packaging (1), also enables the opening of the packaging (1) by detachment of the cover (5), without making cuts or tears, so that the packaging (1) can be reused.