Smoking Article Laminate Wrapper for Combustion Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smoking articles that heat aerosolisable materials without burning them face challenges in preventing combustion, which can lead to an unsatisfactory smoking experience and potential burning during use.
Innovation Solution
A laminate wrapper structure comprising inner and outer layers of paper and a non-combustible intermediate layer, typically a metal foil, is used to prevent combustion by limiting oxygen access and maintaining a low porosity, while allowing for integration with conventional cigarette manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heat-not-burn apparatus is used to volatilise aerosolisable material, then combustion is avoided and aerosol can be inhaled, but the risk of burning during use remains and smoking experience may be unsatisfactory
Solution Approach 1:
The patent applies a wrapper made of flexible thin film material that physically surrounds the aerosolisable material. This thin film acts as a barrier that prevents direct contact between the material and external oxygen, thereby preventing combustion while allowing controlled volatilisation when heated, thus resolving the contradiction between preventing combustion and avoiding burning during use.
Solution Approach 2:
The patent uses a composite wrapper structure combining multiple materials with different properties - including heat-resistant materials and oxygen-barrier materials. This composite structure provides both thermal stability to prevent burning and oxygen exclusion to prevent combustion, simultaneously addressing both harmful effects mentioned in the contradiction.
2Reliability
If a non-combustible wrapper is used to prevent combustion, then burning risk is reduced, but the wrapper must be integrated with conventional cigarette manufacturing processes
Solution Approach 1:
The patent employs a flexible thin film wrapper that can be easily processed through conventional cigarette manufacturing equipment. The flexibility of the material allows it to be fed through standard rollers and formers without requiring specialized handling, thus maintaining ease of manufacture while providing combustion prevention through its oxygen-barrier properties.
Solution Approach 2:
The patent uses a disposable wrapper that is inexpensive to manufacture and discard. The wrapper is designed as a single-use component that can be produced through conventional methods and thrown away after use, eliminating the need for complex recycling or reuse systems while maintaining effective combustion prevention during the brief period of use.
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 laminate wrapper effectively prevents combustion, ensuring a safer smoking experience by reducing the risk of burning and enhancing manufacturability, while maintaining the functionality of aerosol generation.
Implementation Method 1
preventing combustion by limiting oxygen access
Implementation Method 2
maintaining a low porosity
Implementation Method 3
heats aerosolisable material to volatilise at least one component of the aerosolisable material, typically to form an aerosol which can be inhaled
Data Source
Figure 1~4
Figure 5~6
AI summary
Described herein is a wrapper (102) for wrapping an aerosolisable material (103), the wrapper comprising at least three layers, wherein the peripheral layers (501, 503) comprise paper and an intermediate layer (502) comprises a non-combustible material, and wherein at least the intermediate layer and one of the peripheral layers are provided as a laminate structure.