Self-standing Blister Packaging with Segmented Cardboard Box
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Solution Overview
Problem
Conventional blister packs face issues with high plastic consumption and poor recyclability due to the need for a wide sealing edge for welding and the inability to separate cardboard and plastic fibers effectively, which hinders recycling efforts and increases environmental impact.
Innovation Solution
A self-standing blister pack design featuring a cardboard box with a lower part forming a base, where the front part has openings that allow product chambers to be partially inserted, reducing the need for plastic welding and enabling easy separation of cardboard and plastic fractions for recycling, while maintaining stability through a triangular cross-section and tapered openings for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wide sealing edge is provided on the plastic film insert for welding it to the cardboard backing, then reliable sealing and packaging is achieved, but plastic material consumption increases
Solution Approach 1:
The packaging is divided into separate cardboard components (front part, back part, lower part) that form a box structure, eliminating the need for a continuous plastic sealing edge. The plastic film insert is segmented into product chambers that are individually positioned within the cardboard structure, allowing reduced plastic usage while maintaining sealing through the cardboard box design.
Solution Approach 2:
The sealing function is extracted from the plastic film insert and transferred to the cardboard box structure. The cardboard front part and back part are connected to form a sealed box that contains the plastic product chambers, eliminating the need for wide plastic sealing edges and reducing plastic material consumption.
2Ease of operation
If the plastic film insert is separated from the cardboard backing after opening, then product access is enabled, but cardboard and plastic fibers mix making clean separation impossible
Solution Approach 1:
The packaging is segmented into distinct cardboard components (front part, back part, lower part) and plastic product chambers. The cardboard box structure can be easily separated from the plastic chambers after product access, enabling clean recycling separation without fiber mixing.
Solution Approach 2:
The plastic product chambers are extracted from the cardboard box structure through the openings. The cardboard box can be completely separated from the plastic material after product removal, enabling efficient recycling of both materials without contamination from mixed fibers.
3Stability of the object's composition
If a stand is made of the same plastic material as the blister pack for self-standing display, then stability is achieved, but plastic material consumption increases
Solution Approach 1:
The lower part of the cardboard box is designed with specific geometric properties (trapezoidal shape with longer base) to provide stability. The cardboard material in this region has enhanced structural properties through its shape and connection to the front and back parts, eliminating the need for plastic stand material.
Solution Approach 2:
The stand function is achieved using cardboard, a more economical and recyclable material, instead of plastic. The cardboard lower part serves as a stable base for display while being easier and more sustainable to recycle, replacing the need for plastic stand material.
Data Source
Figure 1
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AI summary
The invention relates to a blister pack (1) for a product (100), comprising at least one product compartment (2) for receiving the product (100), further comprising a carton (3) for receiving the at least one product compartment (2), wherein the carton (3) comprises a front part (4) and a back part (5), and wherein the at least one product compartment (2) is received between the front part (4) and the back part (5) of the carton (3), wherein furthermore the front part (4) and the back part (5) are connected to each other at least partially at their edges, and the front part (4) of the carton (3) has an opening (6) for each product compartment (2) through which the product compartment (2) received between the front part (4) and the back part (5) partially extends, wherein the size of the opening (6) is dimensioned such that the product compartment (2) cannot pass completely through the opening (6).wherein the carton (3) comprises a lower part (11) connecting the front part (4) and the back part (5), which forms a stand (12) for the blister packaging (1), wherein the front part (4) adjoins the lower part (11) a section (40) which extends obliquely at an angle α of at most 75° with respect to the lower part (11) and wherein at least one opening (6) is formed at least partially in the obliquely extending section (40) of the front part (4).