Paper Cushioning Sheet With Loose Inserts to Resist Crumpling
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Solution Overview
Problem
Cushioning materials like wrapping paper crumple easily and lose effectiveness under force, while plastic bubble wrap is not recyclable.
Innovation Solution
A cushioning sheet comprising a first and second paper layer with semi-spherical recesses and inserts, where each insert is loosely received in a larger void, allowing movement and secured with a repulpable adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wrapping paper is used for cushioning, then it is recyclable and inexpensive, but it crumples easily and loses effectiveness under force
Solution Approach 1:
The invention combines paper layers with plastic spheres to create a composite cushioning material that maintains the recyclability and low cost of paper while adding the structural integrity and cushioning effectiveness of plastic spheres. The paper layers are impregnated with molten plastic spheres, creating a unified composite structure that resists crumpling while providing effective cushioning.
Solution Approach 2:
The invention applies plastic spheres selectively within the paper structure, concentrating the cushioning properties in specific locations where impact forces are most likely to occur. The paper layers maintain their original properties in areas where cushioning is not needed, preserving flexibility and recyclability.
2Reliability
If plastic bubble wrap is used for cushioning, then it provides effective cushioning and is resistant to crumpling, but it is not recyclable
Solution Approach 1:
The invention uses a paper-based structure that can be easily discarded and recovered for recycling. The plastic spheres are embedded in the paper in a way that allows the entire composite material to be processed with paper recycling systems, recovering both the paper and plastic components for reuse.
Solution Approach 2:
By creating a composite of paper and plastic spheres, the invention combines the recyclability of paper with the cushioning properties of plastic. The composite structure is designed to be separable or processable through existing recycling infrastructure, allowing both materials to be recovered and reused.
3Reliability
If a single thin sheet of paper is used for wrapping, then it is simple and inexpensive, but it provides insufficient cushioning protection
Solution Approach 1:
The invention merges multiple functions into a single material structure. The paper layers provide the base structure and flexibility, while the embedded plastic spheres provide cushioning protection. This combination eliminates the need for separate cushioning materials and simplifies the overall packaging structure.
Solution Approach 2:
The composite structure of paper layers with embedded plastic spheres provides both the simplicity of a single material and the enhanced cushioning protection of a multi-component system. The uniform distribution of spheres throughout the paper creates consistent protection without adding significant structural complexity.
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
Provides effective cushioning without crumpling and is recyclable, maintaining protection for fragile items during shipping.
Implementation Method 1
secured with a repulpable adhesive
Data Source
AI summary
A cushioning sheet includes a first layer defining a first inner surface; a second layer coupled to the first layer, the second layer defining a second inner surface facing the first inner surface so that the first inner surface and the second inner surface define a plurality of voids therebetween; and a plurality of cushioning inserts disposed between the first layer and the second layer, wherein each of the plurality of cushioning inserts is received in a corresponding one of the voids, and each void has a diameter that is larger than a diameter of the cushioning insert disposed therein so that each void is configured to loosely receive the cushioning insert disposed therein.