Molded Fiber Container Closure With Bonded Collar Sealing
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Solution Overview
Problem
Fiber-based or pulp-formed containers face issues with sealing content due to loose manufacturing tolerances, leading to potential leakage and difficulty in achieving a reliable and consistently sealed closure.
Innovation Solution
A container design featuring a molded fiber container body with a bonded collar and a latching mechanism, which provides a sealing surface and allows for a secure closure that is tolerant of dimensional inaccuracies, using interlocking mechanisms and sealant materials to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional packaging materials and methods are used, then packaging functionality is provided, but environmental pollution increases and resource depletion accelerates
Solution Approach 1:
The fiber package is designed with nested structures where inner fiber packages can be placed within outer fiber packages, creating a hierarchical containment system. This nesting approach maximizes space utilization and reduces the total volume of packaging materials needed for multiple items, thereby decreasing overall material consumption and environmental impact.
Solution Approach 2:
The patent emphasizes the biodegradability and compostability of the fiber packages, allowing them to be discarded in an environmentally friendly manner. The fiber materials are designed to break down naturally after use, converting waste into beneficial compost that can be recovered and reused in soil, thus closing the material cycle and reducing pollution.
2Reliability
If traditional closure systems are used, then sealing functionality is achieved, but manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The closure system integrates multiple functions into a single component: the cap provides both sealing and opening/closing functionality. The interlocking design combines the lid and base into one piece that simultaneously achieves secure closure and easy manipulation, eliminating the need for separate sealing mechanisms and reducing overall system complexity.
Solution Approach 2:
The fiber package design incorporates universal features that serve multiple purposes: the same structural elements provide both mechanical strength and sealing capability, while the modular design allows the same components to function in different packaging configurations. This multi-functionality reduces the number of specialized parts needed.
3Strength
If non-biodegradable packaging materials are used, then packaging durability is improved, but environmental persistence of waste increases
Solution Approach 1:
The patent utilizes natural fiber materials with inherent biodegradable properties while maintaining sufficient mechanical strength through optimized material composition and structural design. The fiber blend ratios, processing methods, and structural configurations are carefully controlled to achieve the right balance between durability during use and controlled degradation after disposal.
Solution Approach 2:
The fiber package employs composite material construction combining different natural fibers (such as cellulose, lignin, and other plant-based fibers) to create a material system that exhibits both adequate mechanical properties for packaging durability and enhanced biodegradability. The composite structure allows synergistic effects where different fiber types complement each other's strengths while maintaining overall environmental compatibility.
Data Source
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AI summary
Disclosed herein are packages such as containers. A container includes a closure including a closure sealing surface, a molded fiber container body, and a collar bonded to the molded fiber container body. The collar configured to provide a sealing surface corresponding to the closure sealing surface to seal the container when the closure is attached to the bonded collar and molded fiber container body. The container includes a latching mechanism configured to releasably latch the closure to the bonded collar and molded fiber container body.