Low-harm cigarette smoke enhancement via aerosol substrate

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Traditional low-harm cigarettes face a contradiction between reducing harm and maintaining a satisfactory smoking experience, as lower tar content results in a smaller smoke amount, while higher tar content increases harm. There is a need for a low-harm cigarette that enhances smoking effect while minimizing the negative effects of smoke enhancing agents and extending shelf life.

Innovation Solution

A low-harm cigarette with an aerosol generating substrate comprising a tobacco sheet or shreds subjected to smoke enhancement, using a smoke enhancing agent blended into the traditional tobacco sheet or shred slurry, which adjusts the tar content to less than or equal to 6 mg/cig, achieving a significant smoke enhancing effect with minimal impact on taste and aroma, and extending shelf life through low deliquescence properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If tar content is reduced to lower harm, then health harm is reduced, but smoke amount decreases and smoking satisfaction deteriorates

Engineering Contradiction:
Improvehealth harmVSAvoidsmoke amount
Core Design Contradiction:
Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The patent introduces smoke enhancing agents (such as glycerol, propylene glycol, or their esters) as intermediary substances that do not contribute to harm but significantly enhance smoke generation. These agents are blended with low-tar tobacco materials to produce sufficient smoke volume without increasing harmful tar content, thus resolving the contradiction between low harm and adequate smoke amount

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the chemical composition parameters of the tobacco blend by incorporating specific smoke enhancing agents at controlled ratios (5-30% by weight). This parameter modification allows the system to maintain low tar content while achieving satisfactory smoke production through the vaporization and combustion characteristics of the enhancing agents

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If smoke enhancing agent concentration is increased to improve smoke amount, then smoking effect is enhanced, but cost increases and potential harm increases

Engineering Contradiction:
Improvesmoke amountVSAvoidcost
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The patent optimizes the concentration parameter of smoke enhancing agents within the range of 5-30% by weight of tobacco material. Through systematic parameter optimization, the invention identifies the cost-effective range of 5-20% that achieves satisfactory smoke enhancement without excessive cost increase or potential harm from high concentrations

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies partial action by using moderate concentrations of smoke enhancing agents (5-30%) rather than maximum concentrations. This partial application is sufficient to achieve the desired smoke enhancement effect while avoiding the diminishing returns and increased costs associated with excessive agent addition

Inventive Principle:
Principle #16Partial or excessive 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 low-harm cigarette that enhances smoking experience by increasing smoke amount while maintaining low harm, with a smoke enhancing agent concentration between 5% and 20% offering high cost performance, and a shelf life extension due to low deliquescence, meeting consumer requirements for smoke quantity and reducing harmful substance production.

Implementation Method 1

a smoke enhancing agent, wherein the smoke enhancing agent increases a smoke amount of the cigarette

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

an aerosol generating substrate, wherein the aerosol generating substrate includes a tobacco sheet subjected to smoke enhancement and/or tobacco shreds subjected to smoke enhancement

Methodology Applied
Scientific EffectAerosol generation: Aerosol

Implementation Method 3

extending shelf life through low deliquescence properties

Methodology Applied
Scientific EffectDeliquescence: Deliquescence

Data Source

PatentUS20230068565A1Low-harm cigarette subjected to smoke enhancement
Publication Date: 2023.03.02 CHINA TOBACCO HUNAN IND CORP
  • US20230068565A1 patent drawing
  • US20230068565A1 patent drawing
  • US20230068565A1 patent drawing

AI summary

A low-harm cigarette subjected to smoke enhancement, comprising cigarette paper, a filter tip, and an aerosol generating substrate. The aerosol generating substrate comprises a tobacco sheet subjected to smoke enhancement and/or tobacco shreds subjected to smoke enhancement.