Adhesive-Free Packaging Strip With Ultrasonic Welded Handle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing packaging solutions for grouped individual goods, such as bottle packs, face issues with stability during transport, material wastage, and label damage due to adhesive-based designs, and are complex to produce and handle.
Innovation Solution
A packaging system featuring a plastic-coated paper strip that wraps around goods adhesive-free, with welded end sections forming an overlap area and bonded to a handle element, allowing selective gluing of goods for stability without adhering to labels, and using ultrasound welding for production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive-based packaging strip is used to wrap around individual goods, then the packaging provides strong holding force and stability, but the adhesive damages labels on individual goods and creates difficulty in opening and removing the packaging
Solution Approach 1:
The patent replaces the adhesive-based mechanical bonding system with an ultrasonic welding system. The packaging strip end sections are welded together using ultrasonic vibration energy, creating a strong mechanical bond without adhesive. This substitution eliminates label damage while maintaining packaging integrity and enabling easy opening through the welded overlap area.
Solution Approach 2:
The patent changes the bonding mechanism parameter from adhesive chemistry to ultrasonic mechanical vibration. By using ultrasonic welding at specific frequencies and amplitudes, the packaging strip materials are fused together through localized melting and bonding, transforming the bonding approach while achieving strong attachment without adhesive-related label damage.
2Stability of the object's composition
If shrink film is used to wrap and shrink around grouped individual goods, then the packaging achieves high stability and secure holding, but it requires a shrink tunnel for production and uses comparatively large amounts of packaging material
Solution Approach 1:
The patent extracts the shrink tunnel requirement from the packaging system by using a pre-formed packaging strip with integrated welding capability. Instead of requiring a separate shrink tunnel device to achieve stability, the packaging strip is designed with weldable end sections that can be joined using simpler ultrasonic welding equipment, eliminating the need for complex shrink wrapping infrastructure.
Solution Approach 2:
The patent uses a flexible packaging strip made of plastic-coated paper or similar material that can be wrapped around goods and welded at the ends. This thin film approach provides sufficient stability through the welded overlap area while using minimal material, replacing the bulky shrink film system with a more efficient flexible strip design.
3Ease of operation
If packaging material sections are overlapped and welded without gluing to individual goods, then label damage is prevented and packaging can be easily opened, but the stability and reliable holding of heavy or numerous items is insufficient
Solution Approach 1:
The patent merges the advantages of both adhesive bonding and overlap welding by using a packaging strip design where the end sections overlap and are welded together. This combined approach provides the label protection and ease of opening associated with non-adhesive methods while achieving the stability and reliable holding of adhesive methods through the welded overlap structure that secures multiple individual goods together.
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
This solution provides a stable, transport-compatible package that minimizes material usage, prevents label damage, and simplifies production and handling, while allowing easy opening and reuse.
Implementation Method 1
the end sections are welded to one another, preferably by means of ultrasound
Implementation Method 2
the end sections of the strip element are bonded both to the packaging strip and also to a single item, forming a carrying loop
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a container (1) of grouped individual goods (2), with an outer packaging comprising a packaging strip (4) encircling the individual goods (2) in the manner of a banderole and a strip element (5) serving as a carrying handle (13), wherein the packaging strip (4) is free of adhesive on its inner side (6) facing the container (1) and has two end sections (8, 9) forming an overlap area (7) which are welded together, and wherein the end sections (12) of the strip element (5) are each bonded to both the packaging strip (4) and to each individual goods (2) in the form of a carrying loop (11), characterized in that the individual goods are bonded to each other at least partially in a detachable manner.