Cellulose Sheet Insulation for Volume-Efficient Cold Chain Packaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cold chain shipping materials, such as EPS, are bulky, difficult to recycle, and generate excessive waste, leading to increased shipping and warehousing costs, while lacking efficient recycling options and satisfactory volume efficiency.
Innovation Solution
The use of cellulose-based insulating materials in the form of sheets that conform to the item being shipped, trapping air pockets for thermal insulation and being recyclable through existing paper recycling infrastructure, reducing packaging size and waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If EPS containers are used for thermal insulation, then insulating qualities are satisfactory, but volume efficiency is poor and recycling is difficult
Solution Approach 1:
The patent uses flexible cellulose-based insulating material that can be compressed and molded to fit the exact dimensions of the product being shipped. This replaces the rigid, bulky EPS containers with thin, conformable insulation layers that provide the same thermal protection while dramatically reducing packaging volume.
Solution Approach 2:
The patent changes the physical state and properties of the insulating material by using cellulose-based fibers that can be compressed to high densities while maintaining insulation properties. The material transitions from a loose, bulky form to a compressed, space-efficient form that conforms to product contours.
2Temperature
If EPS containers are used for thermal insulation, then insulating qualities are satisfactory, but recycling options are limited
Solution Approach 1:
The patent employs cellulose-based insulating material that can be easily recovered and recycled through existing paper and paperboard recycling infrastructure. After use, the material can be collected, processed, and reused, creating a closed-loop system that eliminates the recycling problems associated with EPS foam.
Solution Approach 2:
The patent uses inexpensive cellulose-based insulation material that is designed for single-use applications but can be easily disposed of through conventional recycling streams. The material is so inexpensive and easy to recycle that it replaces expensive, difficult-to-recycle EPS containers.
3Temperature
If EPS containers are used for thermal insulation, then insulating qualities are satisfactory, but shipping and warehousing costs increase
Solution Approach 1:
The patent divides the insulating function into multiple thin layers of cellulose material that can be stacked and compressed efficiently. This segmentation allows the insulation to be packed much more densely than single-layer EPS containers, increasing the number of units that can be shipped and stored in the same space.
4Object-affected harmful factors
If green packaging insulators are used, then environmental friendliness is improved, but volume efficiency remains unsatisfactory
Solution Approach 1:
The patent uses composite cellulose-based materials that combine the environmental benefits of natural fibers with the space-efficient properties of compressed insulation. The composite structure maintains the insulating air pockets needed for thermal protection while achieving high compression ratios that improve volume efficiency.
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 cellulose-based packaging system provides effective thermal insulation, maintaining desired temperatures for extended periods, reduces shipping and warehousing costs, and facilitates easy recycling, offering a more environmentally friendly alternative to traditional materials.
Implementation Method 1
adjacent cellulose elements of each one of the plurality of cellulose sheets define a plurality of pockets configured to trap air, and wherein the plurality of cellulose sheets are configured to insulate the space
Implementation Method 2
shipped with only a modicum of ice or refrigerant to absorb the heat that flows from the environment external to the packaging through the insulation
Data Source
Figure 1~1B
Figure 2A~2E
Figure 2D
AI summary
A packaging system for cold chain shipment may include a container having interior surface portions, a plurality of cellulose sheets disposed along the interior surface portions and defining a space configured to receive an item for cold chain shipment, and a cold source disposed within the space and configured to cool the container for cold chain shipment. The packaging system may further include a plurality of cellulose sheets, wherein adjacent sheets of the plurality of cellulose sheets define a plurality of pockets configured to trap air, and wherein the plurality of cellulose sheets are configured to insulate the space.