Biodegradable Liquid Container with PLA Barrier Film
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Solution Overview
Problem
Conventional plastic bottles are non-biodegradable and often not recyclable, contributing to landfill waste and environmental issues, while existing eco-friendly solutions lack innovative designs for liquid containment and disposal.
Innovation Solution
Development of an ecologically friendly container made from sustainable materials like bamboo or palm leaves, using micro-thin PLA film as a liquid/oxygen barrier, which can be easily opened, resealed, and self-bundled, reducing material usage and litter, with options for conventional or novel screw cap closures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional plastic bottles are used for liquid containment, then liquid storage function is achieved, but environmental biodegradability deteriorates
Solution Approach 1:
The container uses a composite structure combining sustainable materials (bamboo, palm leaves, or paper) for the container body with a micro-thin PLA film barrier layer. This composite approach maintains liquid containment reliability while improving biodegradability, as the sustainable materials decompose naturally after use.
Solution Approach 2:
The patent changes the material composition parameter by replacing conventional plastic with sustainable alternatives and using a micro-thin barrier film. This parameter change reduces the overall plastic content while maintaining the necessary liquid barrier function through the PLA film layer.
2Strength
If conventional plastic containers are used, then structural integrity is achieved, but recyclability deteriorates
Solution Approach 1:
The container employs composite materials where the sustainable body materials (bamboo, palm leaves, paper) provide structural integrity and can be recycled or composted, while the micro-thin PLA film provides the necessary liquid barrier. The composite structure maintains strength while improving recyclability.
3Object-affected harmful factors
If sustainable materials like bamboo or palm leaves are used, then environmental friendliness is improved, but liquid barrier capability deteriorates
Solution Approach 1:
The sustainable materials (bamboo, palm leaves, paper) are combined with a micro-thin PLA film barrier layer to create a composite container. The sustainable materials provide environmental friendliness and structural form, while the PLA film provides the necessary liquid and oxygen barrier capability that natural materials lack.
Solution Approach 2:
The patent uses a micro-thin PLA film as a barrier layer within the sustainable material container structure. This thin film provides the necessary liquid and oxygen barrier properties while minimizing the amount of non-biodegradable material used, maintaining environmental friendliness.
4Reliability
If conventional closure devices are used, then sealing function is achieved, but environmental compatibility deteriorates
Solution Approach 1:
The closure device uses a composite structure with a sustainable material body and an integrated polymer liner. The sustainable material provides sealing function and environmental compatibility, while the polymer liner ensures proper sealing and can be removed for composting, maintaining environmental compatibility.
Solution Approach 2:
The closure device is segmented into a sustainable material body and a separate polymer liner. The liner can be removed and disposed of separately, allowing the main closure structure to be composted or recycled, thereby improving environmental compatibility while maintaining sealing function.
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 container provides a sustainable, recyclable, and aesthetically appealing solution for liquid storage that minimizes waste, enhances public perception, and reduces environmental impact through innovative design and material usage.
Implementation Method 1
a micro-thin PLA film that provides a liquid/oxygen barrier
Implementation Method 2
The barrier material also acts as the means to fuse the two container halves together
Implementation Method 3
the barrier film sections or fill pouch or natural liquid barrier material may be maintained in place during assembly to the container halves by, for example, an electrostatic charge placed on the film or container halves
Data Source
AI summary
A container for liquids comprising a first portion forming an approximate half container portion; a second portion forming an approximate half container portion, the first and second portions having a generally convex exterior shape with flange portions along perimeters thereof; a liquid impermeable barrier film being disposed on a concave interior portion of each of the first and second portions and extending onto the flange portions; the first and second portions being sealed together at the flange portions to form a liquid impermeable container; and there being provided a location on the container for the disposition of a closure device to allow contents of the container, once filled, to be removed.