WS-3 Cooling Agent Delivery in Aerosol Systems
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Solution Overview
Problem
Existing delivery systems fail to provide a noticeable cooling sensation without imparting characteristic flavors, as previous cooling agents like menthol often migrate and combine with other sensory agents, affecting the desired cooling effect.
Innovation Solution
Incorporating WS-3, a stable cooling agent, in specific amounts within the aerosol-generating material or its packaging to provide a consistent cooling sensation without noticeable smells or tastes, ensuring precise delivery through controlled application methods such as spraying or printing on the wrapper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling agents like menthol are used in delivery systems, then cooling sensation is provided, but characteristic flavors (minty smell/taste) are imparted
Solution Approach 1:
The patent changes the chemical parameter of the cooling agent from menthol to WS-3, which has different sensory properties. WS-3 provides cooling sensation through TRPM8 receptor activation but lacks the characteristic minty flavor of menthol, thus resolving the contradiction between providing cooling and avoiding unwanted flavors
Solution Approach 2:
The patent uses WS-3 as a transient cooling agent that is consumed during the puffing process. The cooling effect is delivered in the moment of use without persistent flavor characteristics, allowing the aerosol-generating material's own flavor to dominate after the cooling sensation dissipates
2Temperature
If cooling agents are added to aerosol-generating material, then cooling effect is enhanced, but the purity of original flavor is reduced
Solution Approach 1:
The patent changes the chemical identity of the cooling agent to WS-3, which has a neutral flavor profile compared to menthol. This parameter change allows cooling effect delivery without flavor contamination, preserving the purity of the aerosol-generating material's original flavor
Solution Approach 2:
WS-3 acts as an intermediary cooling agent that mediates between the heat of the aerosol-generating material and the user's sensory experience. It provides cooling without acting as a flavor carrier, thus protecting the original flavor from contamination
3Temperature
If WS-3 is included in sufficient amounts to provide noticeable cooling, then cooling sensation is achieved, but delivery precision must be controlled
Solution Approach 1:
The patent establishes feedback loops through machine smoking regimes (ISO and HCT) that measure and control WS-3 delivery amounts. By setting specific delivery ranges (1.5-100 μg per puff for ISO, 2-100 μg per puff for HCT), the system provides feedback to optimize both cooling sensation and manufacturing precision
Solution Approach 2:
The patent defines specific parameter ranges for WS-3 content (0.1-10 mg per delivery system, with preferred ranges of 0.3-2.5 mg or 1-5 mg) to balance cooling effect with delivery precision. These parameter specifications enable manufacturers to achieve consistent cooling without excessive complexity
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
WS-3 delivers a discernible cooling or cleansing sensation in combustible and non-combustible aerosol systems, maintaining stability and avoiding minty or other flavors, thus enhancing user experience with targeted cooling effects.
Implementation Method 1
WS-3 is a known cooling agent and is familiar to the person skilled in the art. It is an agent which provides a cooling or cleansing sensation, but does not provide any characteristic flavour.
Data Source
AI summary
The disclosure relates to delivery systems including aerosol-generating material and a cooling agent WS-3 in an amount sufficient to provide a cooling effect. In particular, the disclosure relates to delivery systems that do not provide any clearly noticeable smell or taste other than one of tobacco.