Non-Heating Aerosol Article With pH-Adjusted Moisture Control

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Solution Overview

Problem

Aerosol generating materials in low-temperature heating or non-heating systems have a low nicotine transfer amount, leading to inconsistent product quality due to continuous nicotine release when not in use.

Innovation Solution

A non-heating aerosol generating article with a tobacco medium containing granules of tobacco powder and a pH adjusting aqueous solution, maintaining 8-9% moisture, stabilizes nicotine transfer by adjusting pH to the alkali side, ensuring consistent nicotine release.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a pH adjuster is added to facilitate nicotine transfer during low-temperature heating or non-heating, then nicotine transfer amount is improved, but nicotine is continuously released to the outside even when not smoking, causing product quality instability

Engineering Contradiction:

Improvenicotine transfer amountVSAvoidproduct quality stability

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent applies parameter changes by precisely controlling the moisture content of the tobacco medium at 8-9 wt%, which optimizes the pH environment for nicotine transfer while preventing continuous nicotine release. This specific moisture parameter range creates the right balance between facilitating nicotine transfer during use and maintaining product stability during storage

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by treating the tobacco medium with a pH adjusting aqueous solution that contains both a pH adjuster and moisture. This creates a localized alkaline environment within the tobacco medium that enhances nicotine transfer at the point of use, while the controlled moisture content prevents excessive nicotine release during storage periods

Inventive Principle:

Principle #3Local quality

2Productivity

If aerosol generating material is treated with pH adjuster to improve nicotine transfer, then nicotine release during use is enhanced, but nicotine release during storage increases causing quality inconsistency

Engineering Contradiction:

Improvenicotine transfer efficiencyVSAvoidnicotine release consistency

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent changes the moisture content parameter to 8-9 wt% in the tobacco medium, which optimizes nicotine transfer efficiency during use while maintaining composition stability during storage. This parameter adjustment creates optimal conditions for nicotine release only when needed

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent enables periodic action by controlling the tobacco medium to release nicotine primarily during active use periods rather than continuously during storage. The pH adjusting aqueous solution with controlled moisture content allows nicotine transfer to occur predominantly when the product is being used, creating a on-demand release pattern that maintains quality consistency

Inventive Principle:

Principle #19Periodic action

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 provides a uniform nicotine transfer amount over time, stabilizing product quality and enhancing user satisfaction by preventing excessive nicotine release during storage and use.

Implementation Method 1

a pH adjusting aqueous solution including a pH adjuster and moisture, and the tobacco medium includes 8 wt % to 9 wt % of moisture with respect to a dry weight of the tobacco medium

Methodology Applied

Scientific EffectpH adjustment:

Implementation Method 2

the tobacco medium includes 8 wt % to 9 wt % of moisture with respect to a dry weight of the tobacco medium

Methodology Applied

Scientific EffectMoisture control:

Data Source

PatentUS20250311768A1Non-heating aerosol generating article and aerosol generating system including the same

Publication Date: 2025.10.09 KT&G CO LTD

AI summary

A non-heating aerosol generating article includes a tobacco medium filling at least one of a cellulose acetate filter or a paper filter, the tobacco medium includes granules including tobacco powder, and a pH adjusting aqueous solution including a pH adjuster and moisture, and the tobacco medium includes 8 wt % to 9 wt % of moisture with respect to a dry weight of the tobacco medium.