Cellulose Insulated Liner Assembly for Recyclable Seamless Corners
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Solution Overview
Problem
Existing cellulose-based insulated packaging materials are difficult to manufacture, require custom setups, and produce low-quality fibers that are not optimal for recycling, while also being inefficient and prone to fiber contamination and heat leakage.
Innovation Solution
A recyclable, expandable insulating liner made from multilayer cellulose-based material that forms a one-piece box shape, using intra-panel connection lines to connect side panels and a bottom panel, with adhesive or sewing, and features a seamless design to enhance insulation and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-panel insulated liners are manufactured using macerated newsprint deposited between paper layers, then insulation function is provided, but manufacturing complexity increases and production costs rise due to custom setups and time-intensive processes
Solution Approach 1:
The liner is divided into multiple panels that can be manufactured separately and then assembled together to form the complete insulated liner, allowing for standardized production of individual panels that can be combined in different configurations
Solution Approach 2:
The paper layers and connecting structures are designed to serve multiple functions: providing structural support, enabling panel connection, and maintaining insulation integrity, thereby eliminating the need for separate components and custom setups
2Reliability
If macerated newsprint is used as insulation material, then insulation capability is achieved, but fiber quality deteriorates to low quality short fibers that are suboptimal for recycling
Solution Approach 1:
The liner combines macerated newsprint fibers with a paper matrix structure to create a composite material that maintains insulation properties while improving the overall recyclability and fiber quality for downstream paper production
3Strength
If panels are connected at periphery to hold newsprint, then structural integrity is provided, but adhesion is prevented in connected areas due to dust and fibers
Solution Approach 1:
Dust and loose fibers are removed or controlled in the connected areas through specialized processing, creating clean bonding surfaces that enable proper adhesion while maintaining the insulating core material's integrity
Solution Approach 2:
An intermediary layer or treatment is applied at the connection areas to facilitate adhesion between panels, allowing the macerated newsprint to be held securely without compromising the bonding quality
4Stability of the object's composition
If sheet form materials are used for insulation, then material stability is maintained, but conformance to carton dimensions becomes difficult and installation efficiency decreases
Solution Approach 1:
The liner panels are designed with flexible connecting elements that allow the structure to adapt and conform to the specific dimensions of the carton during installation, while maintaining material stability and insulation properties
5Ease of manufacture
If panels are over-lapped at seams and corners, then assembly is simplified, but heat leakage occurs and insulation effectiveness is reduced
Solution Approach 1:
Adjacent panels are merged or joined edge-to-edge with minimal gaps, and corners are carefully constructed to eliminate openings, thereby preventing heat leakage while maintaining simple assembly through the panelized design
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 provides efficient assembly, improved insulation properties, and full recyclability, reducing air leakage and fiber contamination, while using environmentally friendly materials.
Implementation Method 1
utilized to insulate the heat or cold sensitive contents packed inside a shipping carton
Implementation Method 2
using intra-panel connection lines to connect side panels and a bottom panel, with adhesive or sewing
Data Source
AI summary
Process to produce a recyclable insulating liner, the process comprising folding a web of cellulosic material in half, thereby forming a folded web comprising two side edges a top edge and a bottom folded edge; connecting at least one of the two side edges along an intra-panel connection line to form a pouch comprising two bottom corner portions; cutting out a parallelogram-shaped section in each of the two bottom corner portions, thereby forming a cut pouch comprising two unconnected bottom corner sections comprising free edges; and expanding the cut pouch and connecting the free edges of both unconnected bottom corner sections to form straight edges.