Bottle Packaging Container With Tiered Stiffeners
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Solution Overview
Problem
Existing bottle-shaped packaging containers made from laminated composite materials face issues such as uneven surfaces, susceptibility to damage and mildew, and difficulty in maintaining shape and sterilization due to exposed paper base layers, especially when filled with liquid foods, leading to potential food safety concerns and deformation.
Innovation Solution
The introduction of tiered stiffeners formed by folding and arranging laminated material on the surfaces of both the bottle body and neck, which project from the container wall, along with the use of indentation lines on a blank for forming these stiffeners, helps maintain the shape and prevents exposure of the paper base to external environments, enhancing the structural integrity and sterilization capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the bottle body is formed by folding laminated material to create a tapered neck, then the bottle shape is achieved, but the external surface develops obvious steps and uneven heights at crease positions
Solution Approach 1:
The folding structure is divided into multiple segments: the first folding structure creates a first crease with folds turning to one side, while the second folding structure creates a second crease with folds turning to the other side. This segmentation allows each folding structure to compensate for the surface unevenness created by the other, achieving a relatively flat external surface despite the tapered geometry.
Solution Approach 2:
The patent employs asymmetric folding arrangements where the first folding structure has folds turning to one side of the crease, and the second folding structure has folds turning to the opposite side. This asymmetric design allows the higher portion of one folding structure to compensate for the lower portion of the other, balancing the surface height at the crease positions.
2Device complexity
If the paper base layer is exposed to the external environment, then the laminated structure is simplified, but the exposed portions become susceptible to breaking, cracking, and mildewing
Solution Approach 1:
The patent applies a protective coating to the paper base layer before the folding and sealing process. This preliminary protective measure ensures that when the paper base layer is subsequently exposed at the skirt end, it is already protected against breaking, cracking, and mildewing from the external environment, rather than applying protection after damage occurs.
3Quantity of substance
If the bottle is filled with liquid food, then the packaging capacity is increased, but the liquid pressure and weight cause uneven squeezing onto the inner walls, affecting the container shape
Solution Approach 1:
The patent introduces stiffeners at specific locations within the bottle structure - particularly at the bottle neck and shoulder areas - to provide localized reinforcement. These stiffeners have different properties than the main bottle wall, providing additional structural support precisely where liquid pressure and weight create the most stress, thereby maintaining the overall container shape while preserving packaging capacity.
4Shape
If multiple folding structures are used to form the bottle neck, then the tapered shape is achieved, but the gaps between folded portions create sterilization difficulties
Solution Approach 1:
The patent extracts or eliminates the harmful gaps between folded portions by designing the folding structures to interlock or abut together. The first and second folding structures are arranged so that their folded portions meet without creating spaces, thereby removing the sterilization problem while preserving the tapered bottle neck geometry.
Data Source
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AI summary
A packaging container. The packaging container is partially or completely formed by a laminated packaging material. A plurality of reinforcing ribs is formed on the surface or inside of the material of the packaging container to protect stability of the structure, so that the packaging container has higher performance when carrying liquid food, and the service time of the container can be prolonged. A base layer of the packaing material is isolated from the external environment by means of a waterproof material, so that the possibility that the base layer is damaged or moldy due to excessive environmental humidity is required, and the performance and quality of the packaging container itself are improved.