Paper Blister Packaging With Lever-Assisted Opening
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Solution Overview
Problem
Existing packaging for products like blister packs are made of mixed materials, which complicates recycling and requires separate disposal of plastic components, and are often difficult to open due to complex seals.
Innovation Solution
A container with a paper-based packaging comprising a blister card and hood, where the product fills the hood and acts as a lever, and a crease line extends between the bodies to facilitate easy opening by bending, eliminating the need for separate plastic tear strips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the packaging is made of mixed materials (plastic blister cover and cardboard blister card), then the packaging provides adequate protection and sealing, but the packaging becomes difficult to recycle and requires separate disposal of different materials
Solution Approach 1:
The patent merges the blister card and blister cover into a single integrated paper-based packaging structure. The blister card is formed from a paper blank that is folded and sealed to create both the card body and the blister cover portions, eliminating the need for separate plastic and cardboard components. This unified paper structure can be disposed of together in one recycling stream, resolving the contradiction between adequate protection and recycling difficulty.
2Ease of operation
If a plastic tear strip is added to enable easy opening, then the packaging becomes easy to open, but the packaging requires separate disposal of the plastic tear strip
Solution Approach 1:
The patent extracts the opening function from a separate plastic tear strip component and integrates it directly into the paper-based packaging structure. The tear strip is formed as part of the paper blank itself, with a pre-scored separation line that allows easy tearing. This eliminates the need for additional plastic materials while maintaining easy opening capability, and the entire packaging can be disposed of together.
Solution Approach 2:
The patent changes the material parameter of the tear strip from plastic to paper, matching the main packaging material. The paper blank is designed with a specific fold line that creates a weakened area for easy tearing, allowing the packaging to be opened simply by pulling apart along the fold line. This parameter change enables easy opening without introducing incompatible materials that would complicate disposal.
3Reliability
If the seal between blister card and blister cover is made strong, then the packaging provides good sealing, but the packaging becomes difficult to separate cleanly and easily
Solution Approach 1:
The patent segments the packaging structure into distinct functional zones within the paper blank: a sealed portion that maintains integrity during storage and transport, and a tear portion with a pre-scored separation line that enables easy opening. The fold line creates a controlled weakness that allows the packaging to be separated cleanly along the intended path without damaging the product or requiring forceful manipulation.
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 allows for easy opening and complete recyclability of the packaging, preventing deformation during opening and ensuring efficient transfer of bending moments to break the package, thus enhancing sustainability and user convenience.
Implementation Method 1
The product accommodated in the packaging acts as a lever when the packaging is opened
Implementation Method 2
a bending moment applied during the bending process can be transferred via the essentially dimensionally stable product to the packaging
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a container (1) comprising a packaging (2) and a product (3) accommodated in the packaging (2), wherein the packaging (2) comprises a paper material and the product (3) comprises at least two substantially dimensionally stable, cuboid bodies (4), wherein the packaging (2) comprises a blister card (5) and a cuboid blister hood (6) arranged on the blister card (5), wherein both the blister card (5) and the blister hood (6) are made of the paper material and wherein the at least two bodies (4) substantially completely fill the blister hood (6), wherein the packaging (2) furthermore has a material weakening (8) acting as a fold line (7), which extends both over the blister hood (6) and over the blister card (5) and which runs in a plane lying between the at least two cuboid bodies (4), such thatthat the packaging (2) can be broken open by bending the container (1) along the bend line (7), so that the product (3) can be removed from the packaging (2), wherein the product (3) contained in the packaging (2) acts as a lever when opening the packaging (2).