Paper Strapping Band Loop Adhesion for Eco-Friendly Packaging
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Solution Overview
Problem
Existing strapping packages using plastic bands face environmental concerns and process inefficiencies, with plastic strapping bands being criticized due to material usage, mechanical instability, and prolonged production times for welding or gluing.
Innovation Solution
A strapping package using a prefabricated closed strapping band that encloses articles, with a loop formed by pulling and folding the band, secured by adhesive and optional additional fastening means, and optionally combined with an upper gripper carton for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If plastic strapping bands are used for strapping packages, then mechanical strength and pre-tension capability are improved, but environmental friendliness deteriorates and production time increases due to welding or gluing processes
Solution Approach 1:
The patent changes the material parameter from plastic to paper, transforming the strapping band from a strong but environmentally harmful material to an eco-friendly material that requires different joining methods (adhesive instead of welding), thus resolving the environmental contradiction while maintaining functional requirements
Solution Approach 2:
The patent replaces the mechanical joining methods (welding, gluing) with a friction-based mechanical interlocking system where the looped end of the strapping band is inserted into a groove on the spool, eliminating the need for thermal or chemical joining processes and reducing production time
2Strength
If plastic strapping bands are used with welding or gluing processes, then mechanical strength is improved, but production time increases
Solution Approach 1:
The patent replaces thermal welding or chemical gluing processes with a purely mechanical friction-based fastening system where the looped end is inserted into a groove and held by friction, eliminating time-consuming heating or curing processes and significantly reducing production time
Solution Approach 2:
The strapping band's own friction force against the groove walls provides the fastening mechanism, making the system self-fastening without requiring external welding equipment, glue application, or curing processes, thereby streamlining production
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 a mechanically stable, environmentally friendly, and efficiently produced strapping package with reduced production time and improved handling, addressing the issues of plastic strapping packages.
Implementation Method 1
secured by adhesive and optional additional fastening means
Data Source
Figure 1~2
Figure 3A~3E
Figure 4A~4D
AI summary
The invention relates to a strapping assembly (1) with at least two articles (2) held together by at least one pre-assembled closed strapping band (5) that completely encircles the articles (2). The at least one closed strapping band (5) has a circumferential length (U5) that is greater than the outer circumference (A3) of the enclosed articles (2) of the strapping assembly (1). The at least one closed strapping band (5) is pulled taut at at least one point to form a loop (8), and the resulting folded loop (8), which is placed against an outer surface of the (9), is fixed to an area of the strapping band (5) covered by the loop (8) by means of an adhesive bond. The strapping band (5) has at least one recess (6) in the folded section forming the loop (8), with the adhesive bond being located in the section provided with the recess (6).