Multi-Sheet Tobacco Wrapper for Stable Insertion and Heat Transfer
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Solution Overview
Problem
Existing electrically heated smoking articles face issues with the management of the tobacco part's circumference during storage and insertion, leading to potential difficulties in inserting and removing the smoking article, as well as issues with thermal conductivity and appearance quality.
Innovation Solution
A non-combustible heating-type smoking article with a tobacco part wrapped by a wrapper formed from two or more sheets, including a metal and paper combination, providing a tensile strength of 10 to 30 N in the transverse direction, which manages the circumference of the tobacco part effectively, ensuring proper insertion, thermal conductivity, and maintaining appearance quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single-sheet wrapper is used, then the manufacturing process is simple, but the tensile strength is insufficient and the circumference cannot be managed effectively
Solution Approach 1:
The wrapper is constructed by attaching multiple sheets (first sheet and second sheet) together to form a composite structure. This composite wrapper configuration provides enhanced tensile strength while maintaining effective circumference management, resolving the contradiction between strength and structural complexity.
2Ease of operation
If the tobacco part circumference is not managed properly, then the insertion and removal process is simple, but the smoking article cannot be properly inserted into and removed from the main body
Solution Approach 1:
The wrapper's mechanical properties (tensile strength and flexibility) are optimized through the multi-sheet attachment structure, enabling the tobacco part to maintain an appropriate circumference that facilitates smooth insertion into and removal from the main body, thus improving ease of operation while controlling shape.
3Strength
If the wrapper has high tensile strength, then the appearance quality and circumference management are improved, but the thermal conductivity may be affected
Solution Approach 1:
The wrapper structure is designed with different sheet materials and attachment patterns in specific regions to achieve high tensile strength where needed for appearance quality and circumference management, while maintaining thermal conductivity in areas critical for heat transfer during the smoking process.
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 solution ensures proper insertion and removal of the smoking article, maintains thermal conductivity, prevents tobacco spilling, and enhances appearance quality by managing the tobacco part's circumference, thereby delivering a high-quality smoking experience.
Implementation Method 1
the wrapper has a tensile strength of 10 to 30 N in a transverse direction crossing an axial direction of the tobacco part
Implementation Method 2
The tobacco part has a hardness of 0.41 to 1.5 N when compressed by a length corresponding to 10% of a diameter of the tobacco part
Data Source
AI summary
A non-combustible heating-type smoking article includes: a tobacco part. The tobacco part includes: a tobacco filler; and a wrapper enclosing the tobacco filler. The tobacco part has a hardness of 0.41 to 1.5 N when compressed by a length corresponding to 10% of a diameter of the tobacco part in a diameter direction of the tobacco part. The wrapper is formed by attaching two or more sheets. The wrapper has a tensile strength of 10 to 30 N in a transverse direction crossing an axial direction of the tobacco part.