Fiber-Containing Container Rim for Resealable Biodegradable Packaging
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Solution Overview
Problem
Existing containers with fibers lack effective resealability, especially for quantities over 200 ml, as they often rely on plastic threads and lids which are not practical for repeated use.
Innovation Solution
A method for producing containers with a brim using fiber-containing pulp, allowing for the creation of biodegradable and sustainable containers that can be resealed using a combination of different fiber types, including cellulose, hemp, and viscose fibers, with a separate fibrous pulp for the brim that can be designed to protrude and serve as a support for reclosing lids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plastic threads and lids are used to ensure resealability, then resealability is improved, but environmental sustainability and biodegradability deteriorate
Solution Approach 1:
The patent changes the material parameters from synthetic plastic to natural fibers (cotton, hemp, linen, wool, silk) while maintaining the functional parameters of resealability through a fiber-based rim structure that can be opened and closed multiple times
Solution Approach 2:
The patent uses composite fiber materials comprising different natural fibers (cellulose-based fibers like cotton and hemp, protein-based fibers like wool and silk) to create a rim that combines strength, flexibility, and biodegradability for sustainable resealability
2Reliability
If plastic components are added to fiber containers, then resealability is improved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The patent merges the rim and the closure function into a single integrated fiber-based structure, eliminating the need for separate plastic threads and lids, thereby simplifying the overall container structure while maintaining resealability
Solution Approach 2:
The fiber-based rim serves multiple functions: it provides structural support for the container opening, enables resealability through its flexible nature, and acts as an interface for closure, replacing multiple separate plastic components with a single multi-functional element
3Object-affected harmful factors
If fiber-based materials are used for the rim, then biodegradability and sustainability are improved, but handling efficiency and structural strength may deteriorate
Solution Approach 1:
The patent employs composite fiber materials combining different natural fibers (cellulose-based fibers for structure, protein-based fibers for flexibility) to achieve both biodegradability and sufficient mechanical strength for handling, resolving the contradiction between environmental friendliness and operational efficiency
Data Source
Figure 1~2
Figure 3A~4E
Figure 5A~5C
AI summary
The invention relates to a method for producing a fiber-containing container (2, 7) with a fiber-containing rim (3, 8, 13, 15, 17, 19, 21, 23, 26, 29, 32, 35, 39, 44), wherein the method comprises: forming a fiber-containing container (2, 7) using fiber-containing pulp, wherein the container (2, 7) comprises an outlet area (5, 11, 38, 45) with an outlet opening (4, 9, 12, 14, 16, 18, 20, 22, 25, 28, 31, 34), and providing a rim (3, 8, 13, 15, 17, 19, 21, 23, 26, 29, 32, 35, 39, 44) on an outer surface of the mouth area (5, 11, 38, 45) using fiber-containing pulp. The invention further relates to a container (1, 6) comprising fibers and a device for carrying out the method.