Paper-Metal Wrapper Structure for High-Speed Heated Tobacco Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aerosol generating articles with metal foils for non-combustible heating-type smoking articles suffer from poor gluing performance and discomfort due to a different appearance compared to traditional cigarettes, making high-speed production on existing cigarette making machines challenging.
Innovation Solution
A non-combustible heating-type smoking article is designed with a wrapper comprising a metal substrate sheet and paper sheets on both sides, allowing it to be produced at high speed on conventional cigarette making machines without modifications, while maintaining a traditional cigarette-like appearance and preventing ignition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a combustible structure is used to generate heat, then heating function is achieved, but combustion by-products and harmful substances are generated
Solution Approach 1:
The patent replaces the chemical combustion system with an electrical heating system. The heating element (resistive heating coil or PTC heater) converts electrical energy directly into thermal energy through Joule heating, eliminating the need for combustion reactions. This substitution removes the source of combustion by-products while maintaining the heating function, directly resolving the contradiction between achieving heating temperature and avoiding harmful combustion emissions.
Solution Approach 2:
The patent changes the fundamental parameter of heat generation from chemical reaction (combustion) to electrical resistance heating. By changing the energy conversion mechanism from chemical to electrical, the system achieves the same thermal effect without producing harmful combustion by-products. This parameter change transforms the heating process from a chemical process to a physical process, eliminating the harmful factors associated with combustion.
2Object-generated harmful factors
If tobacco is combusted to generate smoke, then smoking effect is achieved, but harmful substances are generated
Solution Approach 1:
The patent replaces the combustion-based smoke generation system with an electrical heating system that vaporizes or heats the tobacco material without burning it. The heating element raises the temperature of the tobacco to a controlled range (below combustion point) to produce vapor or heated aerosol, eliminating harmful combustion by-products while maintaining the smoking effect. This substitution resolves the contradiction by achieving reliable smoking effect through controlled thermal processing rather than uncontrolled combustion.
Solution Approach 2:
The patent changes the temperature parameter from combustion range (above 600°C) to vaporization/heating range (200-400°C). By controlling the heating temperature to remain below the combustion point of tobacco, the system produces smoke or vapor without generating harmful combustion by-products. This parameter control ensures consistent smoking effect while eliminating harmful substances, resolving the contradiction between smoking effect reliability and harmful substance generation.
3Use of energy by moving object
If heating temperature is increased to improve heating efficiency, then energy efficiency is improved, but risk of combustion increases
Solution Approach 1:
The patent optimizes the heating temperature parameter to operate in the vaporization range (200-400°C) rather than the combustion range (above 600°C). By maintaining the heating temperature below the ignition point of tobacco, the system achieves efficient heating and energy transfer without creating combustion conditions. This parameter optimization resolves the contradiction by maximizing heating efficiency within the safe temperature window that prevents combustion.
Solution Approach 2:
The patent introduces an intermediary substance (heating medium or vaporization agent) between the heating element and the tobacco material. This intermediary absorbs and distributes the thermal energy, enabling efficient heat transfer to the tobacco without requiring the heating element to reach combustion temperatures. The intermediary acts as a thermal buffer, allowing high heating efficiency while maintaining temperatures below the combustion threshold, thus resolving the contradiction between energy efficiency and combustion risk.
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 high-speed production of a non-combustible smoking article with a traditional cigarette-like appearance, preventing ignition and enhancing gluing performance, and allowing for flexible flavoring options without surface stains or scratches.
Implementation Method 1
the organic substance has a water-containing gel structure obtained by absorbing water
Implementation Method 2
the organic substance has a water-containing gel structure obtained by absorbing water
Implementation Method 3
heating means for heating the organic substance
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A non-combustible heating-type smoking article includes: a tobacco filler; and a wrapper enclosing the tobacco filler. The wrapper includes: a substrate sheet made of metal; a first sheet made of paper and bonded to one surface of the substrate sheet on a side of the tobacco filler; and a second sheet made of paper and bonded to one other surface of the substrate sheet on a side opposite to the one surface.