Die-Cut Paper Buffer Layer for Recyclable Logistics Packaging
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Solution Overview
Problem
Current packaging structures in logistics and express deliveries face issues with non-recyclable buffer materials, leading to environmental pollution and poor working conditions due to the use of plastic films and powdery buffer materials.
Innovation Solution
A full recycling environmental protection packaging structure made of a planar paper structure with a die-cutting network layer that serves as both a protective and buffering layer, allowing for easy recycling and reducing environmental harm, combined with a manufacturing method that uses stretched and laminated paper materials to form a recyclable and efficient packaging solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If plastic film and plastic foam are used as buffer materials in paper packaging structures, then protective buffering performance is improved, but recyclability deteriorates because the plastic materials cannot be separated from the paper structure
Solution Approach 1:
The patent uses homogeneous paper material for both the packaging structure and buffer layer, eliminating the need for separation during recycling. The buffer layer is formed by die-cutting and stretching paper material to create a three-dimensional network structure, ensuring the entire packaging is made of the same recyclable material.
Solution Approach 2:
The patent creates a composite paper structure where die-cut and stretched paper material forms an integrated buffer layer within the packaging structure. This composite approach maintains protective performance while ensuring all components are made of recyclable paper material that can be processed together.
2Strength
If powdery and granular buffer materials are used to fill packaging structures, then buffering capacity is improved, but working environment deteriorates due to powder in air exceeding safety standards
Solution Approach 1:
The patent uses a flexible paper-based buffer layer formed by die-cutting and stretching paper material into a three-dimensional network structure. This flexible buffer layer provides buffering capacity without the dust and contamination issues associated with powdery and granular materials, creating a safe working environment.
3Strength
If thermoplastic plastic film is used to adhere buffer materials to paper packaging inner walls, then adhesion performance is improved, but environmental friendliness deteriorates due to non-recyclable plastic coating
Solution Approach 1:
The patent eliminates thermoplastic plastic film by using homogeneous paper material throughout the packaging structure. The buffer layer is formed by die-cutting and stretching paper material, which naturally adheres to the paper packaging structure without requiring plastic coatings, thereby maintaining environmental friendliness and recyclability.
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 enables complete recyclability of packaging materials, reduces environmental pollution, and improves working conditions by using paper-based buffer layers that mimic the protective effects of plastic boards or foams, while enhancing production efficiency through the use of paper rolls in the manufacturing process.
Implementation Method 1
the liner is formed by stretching a die-cutting paper
Data Source
AI summary
A full recycling environmental protection packaging structure and a manufacturing method thereof applied to express deliveries, postal services and logistics and made of a planar structure of paper. The packaging structure includes a first surface and a protecting layer overlapped on the first surface. The protecting layer includes at least one layer of liner which is a three-dimensional network structure formed by paper material being stretched after being die-cut. The planar structure is sealed edges thereof and an opening is reserved to form a bag body. The packaging structure of the present disclosure can overcome problems that kraft paper bubble bags or envelopes, and paper and plastics can't be separated and recycled to pollute environment in the prior art. At the same time, it can solve technical problems of dust pollution and poor air quality caused by using powdery and granular soft structures used as buffers.