Vaporisable Material Moisture Control for Consistent Flavor

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Solution Overview

Problem

Vapor-generating devices using vaporizable materials, such as those containing tobacco, often produce inconsistent vapor levels and flavor delivery due to varying moisture content and humectant levels, leading to unreliable user experience.

Innovation Solution

A vaporizable material with tobacco having a moisture content of 3-5 wt% and at least 20 wt% humectant, such as propylene glycol, is used to maintain consistent flavor and vapor production, reducing harshness and irritation, and is packaged to retain moisture and flavor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If vaporisable material with varying moisture content is used, then the device can be manufactured with simple processes, but the vapor production and flavor delivery become inconsistent

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidvapor production consistency

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies parameter changes by precisely controlling the moisture content of tobacco within 3-5 wt% and incorporating at least 20 wt% humectant. This specific parameter range resolves the contradiction by ensuring consistent vaporization behavior and flavor delivery while maintaining manufacturability through standardized material specifications.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses composite materials by combining tobacco with specific humectants (propylene glycol, glycerol, or a mixture) in defined proportions. This composite approach ensures consistent vapor production and flavor delivery by creating a material composition that maintains stable physical and chemical properties during vaporization.

Inventive Principle:

Principle #40Composite materials

2Ease of operation

If tobacco with high moisture content is used, then the material is easier to handle and process, but the flavor delivery becomes harsh and inconsistent

Engineering Contradiction:

Improvematerial handling easeVSAvoidflavor harshness

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent changes the moisture content parameter to a low range (3-5 wt%) combined with high humectant content (≥20 wt%). This parameter optimization reduces flavor harshness and irritation while maintaining ease of handling through the humectant's moisture-retention properties, resolving the contradiction between operability and harmful effects.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces humectants as intermediary substances that mediate between the tobacco and the vaporization process. These humectants maintain optimal moisture levels, smooth out flavor delivery, and reduce harshness, thereby resolving the contradiction between ease of handling and flavor quality.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If conventional vaporisable material is used, then the device structure remains simple, but the user experience lacks consistency in flavor and vapor delivery

Engineering Contradiction:

Improvedevice structure simplicityVSAvoidflavor delivery consistency

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent achieves reliable flavor delivery consistency by changing the material parameters to specific moisture content (3-5 wt%) and humectant content (≥20 wt%). This allows the use of simple device structures without compromising consistency, as the optimized material composition ensures stable vaporization characteristics.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials consisting of tobacco combined with specific humectants in controlled proportions. This composite formulation ensures consistent flavor and vapor delivery while maintaining compatibility with simple device structures, resolving the contradiction between device simplicity and performance reliability.

Inventive Principle:

Principle #40Composite materials

4Productivity

If tobacco with low moisture content is used, then the vapor production efficiency increases, but the flavor quality becomes harsh and irritating

Engineering Contradiction:

Improvevapor production efficiencyVSAvoidflavor irritation

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent optimizes both moisture content (3-5 wt%) and humectant content (≥20 wt%) simultaneously. This dual parameter optimization maintains high vapor production efficiency while the humectant smooths flavor delivery and reduces irritation, resolving the contradiction between productivity and harmful effects.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses composite materials where humectants are combined with low-moisture tobacco. The humectant component compensates for the potential harshness of low-moisture tobacco by providing moisture retention and smoothing effects, thereby maintaining both high vapor efficiency and pleasant flavor quality.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS10932487B2Vaporisable material

Publication Date: 2021.03.02 JT INTERNATIONAL SA

AI summary

A vaporisable material for use in a vapour-generating device comprising tobacco having a moisture content of from about 3 to 5 wt %, and further comprising a humectant in an amount of at least 20 wt % is disclosed. The invention also relates to use of the vaporisable material in a vapour-generating device, and to a sealed package containing the vaporisable material and a device containing the sealed package of vaporisable material.