Biodegradable Liquid Container with PLA Barrier Film
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Solution Overview
Problem
The environmental impact of non-biodegradable plastic bottles in landfills and the lack of recyclable materials in the beverage industry necessitate the development of an ecologically friendly container for liquids that is both sustainable and effective in production, shipping, and disposal.
Innovation Solution
The container is made from sustainable materials like bamboo, banana leaves, and post-consumer waste, utilizing a micro-thin PLA film as a liquid and oxygen barrier, which provides structural integrity and can be easily assembled, filled, and resealed, with a focus on minimizing polymeric materials and promoting recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional plastic bottles are used for liquid containment, then structural integrity and liquid barrier properties are achieved, but environmental harm increases due to non-biodegradability and landfill accumulation
Solution Approach 1:
The patent employs composite materials consisting of biodegradable outer shell portions (made from agricultural processing materials, post-consumer waste, or other ecologically friendly materials) combined with a micro-thin PLA (polylactic acid) film barrier. This composite structure provides both the necessary liquid containment reliability and environmental sustainability, as the PLA film provides effective liquid/oxygen barrier properties while the biodegradable outer shells ensure the container can be composted or degraded naturally after use.
2Object-affected harmful factors
If biodegradable materials like bamboo and palm leaves are used for container construction, then environmental sustainability is improved, but liquid barrier properties deteriorate without additional coating
Solution Approach 1:
The patent combines biodegradable materials (bamboo, palm leaves, agricultural processing materials, post-consumer waste) with a micro-thin PLA film to create a composite structure. The PLA film provides the necessary liquid and oxygen barrier properties, while the biodegradable outer shell portions provide structural integrity and environmental sustainability. This composite approach allows the container to maintain both ecological safety and liquid containment reliability.
3Reliability
If conventional screw caps made of polymeric materials are used for closure, then sealing effectiveness is improved, but environmental compatibility deteriorates
Solution Approach 1:
The closure device is constructed with a biodegradable outer shell portion made from the same ecologically friendly materials as the container body, combined with a micro-thin PLA film barrier. This composite closure provides both effective sealing (through the PLA film barrier) and environmental compatibility (through biodegradability), allowing the entire container system including the cap to be composted or degraded naturally after use.
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 solution offers a fully recyclable and biodegradable container that reduces waste, enhances public perception, and provides a unique user experience through innovative design, enabling self-bundling and efficient shipping, while ensuring the structural integrity and safety of the liquid contents.
Implementation Method 1
encapsulate a micro-thin PLA film that provides a liquid/ oxygen barrier
Implementation Method 2
an electrostatic charge placed on the film or container halves to create a liquid reservoir for the environmentally friendly container to prevent loss of liquid
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.