Compostable Wall Bulk Shipper Using Molded Plant Fiber
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bulk shippers are not compostable, leading to disposal issues, and their insulation materials, such as plastics, are also not recyclable or compostable, complicating their disposal.
Innovation Solution
A bulk shipper with walls made of molded plant fiber sheets joined together, featuring an interior space filled with air, starch, or loose plant fiber, which provides thermal insulation and is compostable or recyclable, and optionally includes a moisture barrier and corrugated strengthening for structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional bulk shippers are made from rigid materials like wood, metal, or plastic, then structural strength and durability are improved, but compostability and recyclability deteriorate
Solution Approach 1:
The patent uses composite materials by combining molded plant fiber with natural adhesives (starch or loose plant fiber) to create walls that are both structurally sound and compostable. The inner and outer sheets of molded plant fiber are bonded using these natural adhesives, achieving a balance between strength and environmental compatibility.
2Temperature
If insulation materials like extruded polystyrene are used in conventional bulk shippers, then thermal insulation performance is improved, but recyclability and compostability deteriorate
Solution Approach 1:
The patent changes the material parameters by replacing synthetic insulation materials with natural alternatives (air, starch, or loose plant fiber) that provide comparable thermal insulation while being compostable. The interior space is configured to trap air or contain natural insulating materials, achieving the desired thermal performance through material substitution.
3Temperature
If thick solid walls are used to provide insulation, then thermal insulation is improved, but material usage and weight increase
Solution Approach 1:
The patent employs porous or hollow wall structures by creating an interior space between inner and outer sheets of molded plant fiber. This hollow configuration traps air, which provides thermal insulation, while using less material than solid walls of equivalent thickness. The corrugated portions further enhance insulation by creating additional air pockets within the wall structure.
4Reliability
If molded plant fiber sheets are used to make walls compostable, then compostability is improved, but structural strength may deteriorate
Solution Approach 1:
The patent creates a composite structure by bonding inner and outer sheets of molded plant fiber using natural adhesives (starch or loose plant fiber). This composite approach maintains compostability while enhancing structural strength through the multi-layer configuration and adhesive bonding.
Solution Approach 2:
The patent transitions from single-layer to multi-layer wall construction by incorporating both inner and outer sheets with an interior space between them. This dimensional change from one layer to multiple layers significantly improves structural strength while preserving compostability through the use of natural materials throughout.
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 compostable bulk shipper offers a sustainable solution for disposal and thermal insulation, comparable to traditional materials like extruded polystyrene, while being environmentally friendly and easily disposable.
Implementation Method 1
The interior space contains one or more of air, starch or loose plant fiber
Data Source
AI summary
A compostable wall includes a solid inner sheet and a solid outer sheet, both formed primarily of molded plant fiber. The inner sheet and the outer sheet are joined together along adjacent edges to form a generally planar body having a length of at least 2 feet, a width of at least 2 feet, a thickness that is less than the length and width, and an interior space between the inner sheet and the outer sheet. The interior space contains one or more of air, starch or loose plant fiber.