Lidded Box Packaging with Segmented Closure Label
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Solution Overview
Problem
Cap boxes for elongated tobacco products face challenges in maintaining tightness against aroma and moisture loss, with existing solutions either relying heavily on plastic or having aesthetically unappealing edges when opened.
Innovation Solution
A cap box design featuring an inner pack made of dimensionally stable material like coated or uncoated cardboard, with a frame and closure label system that reduces visible edges and enhances moisture and aroma retention, while allowing for easy cigarette removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large-area sealing film is used to cover the open side of the box part, then tightness against aroma and moisture loss is improved, but plastic usage increases
Solution Approach 1:
The sealing function is segmented between the frame (providing structural support and positioning) and the closure label (providing the actual sealing). The closure label is divided into multiple actuatable portions that can be sequentially opened, allowing the sealing function to be distributed across multiple components rather than requiring a single large plastic film.
Solution Approach 2:
The invention changes the material parameter from plastic film to paper-based materials (frame and closure label). The closure label is made of paper or card material that can be multi-actuated, fundamentally changing the material type from synthetic plastic to renewable paper-based material while maintaining sealing functionality.
2Reliability
If an inner pack made of film is used to increase tightness, then aroma and moisture retention is improved, but plastic usage increases
Solution Approach 1:
The inner pack material is changed from plastic film to paper or card material. The blank for the inner pack is made of paper or card that forms narrow side walls with overlapping flaps, creating a paper-based sealed container instead of a plastic film pouch, thereby reducing plastic usage while maintaining aroma and moisture retention.
3Shape
If the frame height is increased to cover the edges of the inner pack, then aesthetic appearance is improved, but device complexity increases
Solution Approach 1:
The frame is designed with locally differentiated heights rather than a uniform structure. The free upper edge of the frame has varying heights at different locations to selectively cover the edges of the inner pack only where necessary for aesthetic purposes, while maintaining overall structural simplicity. This localized adaptation allows aesthetic improvement without requiring complete redesign of the entire frame structure.
Data Source
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AI summary
The invention relates to a lidded box-type packaging comprising a box part (11) together with an attached frame (16) and a hinged lid (12) for a group of elongated tobacco products; an inner packaging (13) for the packaging contents, said inner packaging being made of a dimensionally stable material and having narrow lateral walls made of overlapping inner and outer lateral flaps of a blank (26) for the inner packaging (13); a front wall which connects the narrow lateral walls; a rear wall which connects the narrow lateral walls; a removal opening (27) for the tobacco products; and a closure label (30) which covers the removal opening (27) in a closed position and which can be actuated multiple times.