Cigarette Packaging Seams via Mechanical Crimping
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Solution Overview
Problem
Existing cigarette packaging methods are not suitable for markets where cigarettes cannot come into contact with coated materials or sealing media, leading to limitations in packaging options and increased complexity, cost, and environmental impact.
Innovation Solution
The use of crimping to form seams in cigarette packaging, eliminating the need for coated materials and heat-based sealing, and simplifying the production process by forming all seams through crimping of overlapping folding tabs, which can be configured as fin seams and optimized with grooves and recesses to enhance durability and avoid material overlap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat-based sealing or coated materials are used to form seams, then sealing reliability is improved, but the packaging becomes unsuitable for markets with regulatory restrictions and increases environmental impact
Solution Approach 1:
The invention extracts and eliminates the harmful sealing media (heat, coated materials, adhesives) from the packaging system. By removing these elements entirely and replacing them with a mechanical crimping process, the packaging becomes compliant with regulatory restrictions while maintaining seam formation capability through pure mechanical deformation of the material.
Solution Approach 2:
The invention replaces thermal and chemical sealing mechanisms with a purely mechanical crimping system. The crimping device applies mechanical force to deform and interlock the folding tabs, eliminating the need for heat-based sealing or coated materials, thus achieving both regulatory compliance and effective seam formation.
2Strength
If multiple materials and sealing media are used, then seam strength is improved, but recycling complexity increases
Solution Approach 1:
The invention achieves homogeneity by using a single material type (cellulose-based packaging material) for the entire packaging structure. The crimping process creates strong seams through mechanical interlocking of the same material, eliminating the need for different materials and sealing media, thus simplifying recycling while maintaining seam strength.
3Ease of manufacture
If crimping is used to form seams, then environmental friendliness and simplicity are improved, but the number of overlapping plies must be limited
Solution Approach 1:
The invention applies segmentation by creating recesses in the packaging material that divide and separate the overlapping plies. This segmentation reduces the number of plies that overlap at any given point during crimping, making the mechanical crimping process feasible and effective while maintaining production simplicity and environmental friendliness.
4Ease of manufacture
If folding tabs are crimped in overlap regions, then seam formation is achieved without sealing media, but material deformation must be precisely controlled
Solution Approach 1:
The invention applies preliminary action by creating grooves and recesses in the packaging material before the crimping process. These pre-formed structural features guide the crimping operation, ensuring that the mechanical deformation occurs at the correct locations and with the appropriate force distribution, thus achieving precise seam formation without requiring complex real-time control during crimping.
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 approach results in a cost-effective, environmentally friendly packaging solution that meets regulatory requirements, simplifies recycling, and ensures the packaging is durable and free from harmful chemical residues, while maintaining the integrity of the contents.
Implementation Method 1
preferably all the seams are formed by crimping folding tabs of the packaging material that bear on one another in the overlap region
Implementation Method 2
seams are formed by crimping folding tabs of the packaging material that bear on one another
Data Source
AI summary
A packet for cigarette industry products, having a casing which, preferably on all sides, surrounds a group of cigarette industry products as the packet content, wherein the casing is formed from a packaging material, and wherein folding tabs of the packaging material are connected to one another by seams. Preferably all seams are formed by crimping folding tabs of the packaging material that bear on one another in the overlap region of those folding tabs that bear on one another. The invention also relates to corresponding devices and methods for producing such packets.