Perforated Paper Packaging Filler Elastic Units
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Solution Overview
Problem
Conventional packaging fillers made from synthetic resins lack shape-forming versatility and are not recyclable, leading to environmental pollution after use.
Innovation Solution
A packaging filler composed of an inner and outer linerboard sheet with perforated holes, featuring elastic units with protruding sections that provide elasticity and support, allowing the filler to be folded, bent, and shaped in various directions without the need for foldable slits or cut grooves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional corrugated cardboard is used, then it provides basic cushioning and elasticity, but it lacks shape-forming capability when bent or folded
Solution Approach 1:
The outer linerboard sheet is divided into multiple elastic units by perforated holes, allowing each unit to independently deform and form shapes. This segmentation enables the filler to adapt to various space configurations while maintaining structural integrity through the support sections that connect the elastic units.
Solution Approach 2:
Different regions of the filler have different properties: elastic units provide flexibility and shape-forming capability between perforated holes, while support sections provide structural strength and bonding. This local differentiation allows the filler to simultaneously achieve shape adaptability and mechanical strength.
2Adaptability or versatility
If synthetic resin air caps are used, then they provide excellent shape-forming capability and fill various spaces, but they are not recyclable and cause environmental pollution
Solution Approach 1:
The invention changes the material parameter from synthetic resin to paper-based linerboard, transforming the filler from non-recyclable to recyclable. The perforated hole pattern and elastic unit structure are optimized to maintain shape-forming capabilities comparable to synthetic resin while using environmentally friendly materials.
3Shape
If foldable slits or cut grooves are added to corrugated cardboard to improve shape-forming feature, then local shape capability is enhanced, but the structure becomes more complex and weaker
Solution Approach 1:
The outer linerboard sheet with perforated holes creates a flexible structure that can deform and form shapes without requiring cut grooves or slits. The perforated design allows bending and folding while maintaining the integrity of the support sections, providing shape-forming capability without compromising structural strength.
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 packaging filler achieves wide-ranging shape-forming capabilities and resistance to external impacts, while being recyclable and reducing environmental waste, thus replacing synthetic resin products effectively.
Implementation Method 1
an outer linerboard sheet including at least one elastic unit having a protruding elastic section
Implementation Method 2
an adhesive portion extending from the elastic section in a direction toward the inner linerboard sheet, wherein a distal end of the support section is bonded onto the inner linerboard sheet
Data Source
AI summary
Provided is a packaging filler formed from paper or corrugated cardboard rather than synthetic resins such as air caps, which is able to be recycled and yet be elastic in various directions as conventional fillers made from synthetic resins. The packaging filler includes an inner linerboard sheet and an outer linerboard sheet having a plurality of perforated holes, wherein the outer linerboard sheet includes at least one elastic unit having a protruding elastic section formed in one of regions between the perforated holes, and a support section extending from the elastic section and bonded at a distal end thereof onto the inner linerboard sheet to support the elastic section.