Reclosable Paper Pack With Curved Closure Flap
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Solution Overview
Problem
Current packaging for cigarette paper and filter paper is oversized, prone to moisture issues, and lacks optimal protection, making it inconvenient for carrying and expensive to produce while being visually unappealing.
Innovation Solution
A packaging design featuring a closure flap with a dimensionally stable, curved end area that encloses the base body's end face, allowing for elastic bending when opening or closing, eliminating the need for adhesives or magnetic fasteners and providing enhanced protection and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cutout is arranged for power transmission to allow paper removal, then ease of operation is improved, but moisture protection deteriorates causing paper to stick to packaging
Solution Approach 1:
A moisture barrier element (such as a foil layer or coating) is introduced as an intermediary between the paper and the packaging material at the cutout region. This mediator allows the paper to be pulled through while preventing moisture from the packaging or environment from reaching and sticking to the paper.
Solution Approach 2:
A flexible moisture-resistant film or coating is applied to the inner surface of the packaging at the cutout area. This thin film provides moisture protection while remaining flexible enough to allow paper removal through the cutout opening.
2Ease of operation
If packaging is designed to accommodate rolled cigarette paper with sufficient room, then paper functionality is improved, but packaging size increases making it inconvenient for carrying
Solution Approach 1:
The cigarette paper is rolled and nested within a compact cylindrical holder that fits tightly within the packaging. The packaging structure is designed to accommodate this nested configuration, allowing sufficient paper length to be stored in a minimal volume that can easily fit in a trouser pocket.
Solution Approach 2:
The packaging transitions from a flat two-dimensional design to a three-dimensional compact form. By utilizing vertical space and creating a cylindrical nesting arrangement, the packaging achieves optimal volume utilization, fitting comfortably in a pocket while maintaining adequate paper storage capacity.
3Ease of manufacture
If packaging material is simplified to reduce cost, then manufacturing cost is improved, but visual appeal and operational attractiveness deteriorate
Solution Approach 1:
The packaging uses standard cardboard material with optimized structural parameters (thickness, folding angles, flap dimensions) to achieve both cost-effectiveness and functional appeal. By carefully selecting material parameters within standard ranges, the packaging maintains operational attractiveness without requiring expensive specialty materials.
Solution Approach 2:
Different regions of the packaging are optimized with locally appropriate properties. The main body uses cost-effective standard cardboard, while specific functional areas (such as the closure flap and cutout regions) incorporate targeted design features that enhance user experience. This localized optimization achieves operational attractiveness without uniformly increasing material costs.
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 design results in a more compact, moisture-resistant, and cost-effective packaging solution that is easy to open and close, offering improved protection and user experience while reducing production costs.
Implementation Method 1
the end area of the closure tab is designed in such a way that when the packaging is opened or closed, the end area can be pushed over the end face or the closure tab by tensioning the closure tab in the direction of the longitudinal extension around the base body against an elastic counter-force
Data Source
Figure 1~2
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Figure 6~8
AI summary
The invention relates to a pack (10) with a basic body (11) which has a compartment (16) and with a closure flap (40). The closure flap (40) has a substantially dimensionally stable, bent end region (42) which is dimensioned and designed in such a way that, in the closed state of the pack (10), the end region (42) at least partially encloses an end face (44) of the basic body (11).