Natural Plant Filter Granules for Odor Reduction

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional cigarettes do not effectively reduce cigarette-derived odor ingredients and intraoral halitosis-inducing substances, leading to negative experiences for smokers and non-smokers due to lingering odors and flavors.

Innovation Solution

A cigarette filter incorporating natural plant-based granules with a binder, specifically hydroxypropyl methyl cellulose (HPMC), in a 95% to 99% natural plant material to 1% binder ratio, which absorbs and neutralizes odor ingredients, and optionally includes herb oil capsules for enhanced fragrance retention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If natural plant material is added to cigarettes to reduce odor and halitosis, then the effectiveness of odor reduction improves, but the device complexity increases due to additional filter components

Engineering Contradiction:
Improvecigarette odor and halitosisVSAvoidfilter structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines natural plant material with binder granules into a single integrated filter component, merging the odor-reducing function with the structural support function into one unified element rather than separate components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The filter uses composite material consisting of natural plant material (95-99% by weight) combined with binder (1-5% by weight), creating a composite granule structure that provides both odor reduction and structural integrity

Inventive Principle:
Principle #40Composite materials

2Device complexity

If conventional filters are used without natural plant material, then the device complexity remains low, but the ability to reduce cigarette-derived odor and halitosis is insufficient

Engineering Contradiction:
Improvefilter structureVSAvoidcigarette odor and halitosis
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the compositional parameters of the filter by incorporating natural plant material at specific weight ratios (95-99% plant material to 1-5% binder), transforming the filter from a simple structural component to an active odor-reducing component

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If high binder content is used in natural plant granules, then the granule stability improves, but the odor reduction effectiveness decreases due to lower natural plant material content

Engineering Contradiction:
Improvegranule stabilityVSAvoidodor reduction effectiveness
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent optimizes the binder content parameter within a specific range (1-5% by weight), finding the balance point where sufficient binder provides granule stability while maintaining high natural plant material content (95-99% by weight) for effective odor reduction

Inventive Principle:
Principle #35Parameter changes

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 filter significantly reduces cigarette-derived odors and halitosis-inducing substances, providing a fresher smoking experience and minimizing discomfort for both smokers and non-smokers, while eliminating the need for activated carbon and improving filter productivity.

Implementation Method 1

the effect of reducing the intraoral halitosis ingredient may be identified as the volatile ingredient is delivered into the smoke under the chemical, antibacterial and masking actions of natural plant material-based volatile substances

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

the effect of reducing halitosis inducing ingredients derived from cigarettes may be expected using the chemistry and adsorption actions of non-volatile substances based on the natural plant material

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentEP3834635B1Functional cigarette filter containing natural plant material, cigarette, and method for producing same
Publication Date: 2024.03.20 KT&G CO LTD
  • EP3834635B1 patent drawingFigure 1
  • EP3834635B1 patent drawingFigure 2
  • EP3834635B1 patent drawingFigure 3

AI summary

Disclosed is a cigarette filter including: natural plant based granules composed of a natural plant material and a binder; and a filter portion to accommodate therein the natural plant based granules, in which the binder is hydroxy propyl methyl cellulose (HPMC), and a weight ratio of the natural plant material and the binder is in a range of 95 to 99% : 5 to 1%. Further, disclosed are a preparation method of the cigarette filter, and a cigarette including the cigarette filter.