Double-Layer Heated Cigarette Sealing Structure to Prevent Sleeve Fall-Off
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Solution Overview
Problem
Existing heated non-burning cigarettes face issues with sealing film/sealing sleeve falling off during transport or loading due to exposure, leading to structural instability and aesthetic limitations.
Innovation Solution
A double-layered design incorporating an aesthetic paper layer wrapped around the empty tube and sealing piece to protect the lateral end, enhancing structural integrity and allowing for decorative printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing film/sealing sleeve is fixed on the end of the empty tube by adhesive or extrusion, then the sealing function is achieved, but the exposed lateral end is easy to rub and fall off during transport
Solution Approach 1:
The patent introduces a new dimensional layer (aesthetic paper layer) that wraps around the empty tube and covers the exposed lateral end of the sealing film. This transforms a 2D sealing problem into a 3D protective structure, where the aesthetic paper layer acts as an additional protective dimension that prevents the sealing film from falling off during transport while maintaining the sealing function.
Solution Approach 2:
The aesthetic paper layer functions as a flexible protective shell that wraps around the empty tube and sealing assembly. This thin film structure provides mechanical protection to the exposed lateral end of the sealing film without rigidly constraining it, allowing the sealing film to maintain its sealing function while being protected from external forces during transport.
2Ease of manufacture
If the empty tube is used as the outermost drum for filling tobacco particles, then the filling process is simplified, but the cigarette lacks aesthetic appearance and cannot be printed with patterns
Solution Approach 1:
The patent adds an aesthetic paper layer as an outer dimensional wrapper around the empty tube, transforming the plain functional tube into an aesthetically pleasing cigarette exterior. This additional layer enables pattern printing and decorative designs while the underlying empty tube structure remains intact for its filling function.
Solution Approach 2:
The cigarette structure is segmented into functional layers (empty tube for filling, sealing film for sealing) and aesthetic layers (aesthetic paper layer for appearance). This segmentation allows each layer to perform its specific function independently, with the aesthetic layer providing visual appeal without interfering with the manufacturing and filling processes of the inner layers.
Data Source
Figure 1~2
AI summary
The present invention is in the technical field of heated cigarettes and in particular relates to a double-layer heated cigarette, and a preparation method and use thereof. The heated cigarette includes an empty tube (2) and an aesthetic paper layer (3) wrapped on the outer layer of the empty tube (2), an end of the empty tube (3) far away from the lip being sealed with a sealing piece (1), and a lateral end of the sealing piece (1) being wrapped by the aesthetic paper layer (3). In the present invention, the aesthetic paper layer is wrapped on the outer layer of the empty tube and the aesthetic paper layer wraps the lateral end of the sealing piece, at the moment, the lateral end of a sealing film/sealing sleeve is not exposed to the outside, which prevents the sealing film/sealing sleeve from falling off the empty tube when the lateral end of the sealing film/sealing sleeve is forced during transport or filling of the cigarette. In addition, the cigarette empty tube is generally a stiffer paper tube and cannot be printed with a pattern. After the outer layer of the empty tube is wrapped with the aesthetic paper layer, the pattern is easily printed and the cigarette becomes more aesthetic.