Compostable Shipping Insulation With Moisture-Resistant Foldable Panels
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Solution Overview
Problem
Conventional thermally insulating materials for shipping containers, such as expanded polystyrene (EPS), are not compostable, leading to disposal challenges and increased costs due to the need for specialized machinery and additional boxes.
Innovation Solution
A compostable thermal insulation article composed of a solid panel made primarily of starch and/or plant fiber pulp, enclosed in a water-resistant or water-proof film, which can be easily assembled into a box shape for use in shipping containers, providing equivalent insulation to EPS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If expanded polystyrene (EPS) is used for thermal insulation, then effective thermal insulation is achieved, but the material is not compostable and creates disposal challenges
Solution Approach 1:
The patent changes the material composition parameter from synthetic EPS to natural starch-based material, transforming the disposal characteristic from non-compostable to compostable while maintaining thermal insulation functionality through equivalent structural design
Solution Approach 2:
The patent uses composite material construction by combining starch-based insulation material with water-resistant film coating, creating a material that provides both thermal insulation and moisture protection while remaining compostable
2Reliability
If EPS is used for insulation, then insulation performance is maintained, but specialized machinery and additional boxes are required for disposal, increasing costs
Solution Approach 1:
The compostable insulation material performs self-disposal through natural composting processes, eliminating the need for specialized disposal machinery and complex waste management systems required for conventional EPS
3Ease of manufacture
If compostable material is used instead of EPS, then disposal becomes easier and more environmentally friendly, but the material must hold together as a single unit while being manually foldable
Solution Approach 1:
The patent applies different properties to different parts of the material - the starch-based panel provides structural integrity and compostability, while the water-resistant film coating provides moisture protection, creating localized functional zones within the composite structure
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 compostable and recyclable insulation that is cost-effective, easy to assemble, and provides effective thermal insulation, allowing disposal in commercial or residential composting or recycling bins without the need for specialized machinery.
Implementation Method 1
a water-proof or water-resistant film forming a pocket enclosing the panel
Implementation Method 2
A conventional thermally insulating material is expanded polystyrene (EPS)... provides for thermal insulation of an item being shipped
Data Source
AI summary
A thermal insulation article includes a thermally insulating pad shaped to be positioned in a cavity of a rectangular prism shipping container. The pad includes a solid compostable panel formed primarily of starch and/or plant fiber pulp that holds together as a single unit, and a water-proof or water-resistant film forming a pocket enclosing the panel. The panel includes a first section, a second section, and a third section connecting the first section to the second section, the first and second section each having a central portion and two flaps that extend from the central portion beyond the third section, and wherein the panel is foldable into an open box.