Multi-Segment Biodegradable Filter for Cigarettes
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Solution Overview
Problem
Current filters for smoking articles, such as cigarettes and heat-not-burn products, face challenges with biodegradability and filtration efficiency, particularly with cellulose acetate filters that are non-biodegradable and affect the taste and retention of gas phase constituents.
Innovation Solution
A multi-segment filter design featuring embossed paper or biodegradable filtering material with embedded particulate additives, such as activated carbon, which enhances biodegradability and filtration performance while minimizing the 'paper taste' and additive fallout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cellulose acetate is used as filter material, then filter firmness is improved, but biodegradability deteriorates
Solution Approach 1:
The filter is divided into multiple segments with different materials: a cellulose acetate segment for firmness and a paper segment for biodegradability. This segmentation allows each material to fulfill its optimal function without compromising the other.
Solution Approach 2:
The filter combines cellulose acetate and paper materials in a composite structure. The cellulose acetate provides structural firmness while the paper component ensures biodegradability, creating a composite filter that achieves both properties simultaneously.
2Object-affected harmful factors
If paper is used as filter material, then biodegradability is improved, but gas phase constituent retention deteriorates
Solution Approach 1:
The filter is segmented into a paper section for biodegradability and a cellulose acetate section for effective gas phase filtration. This segmentation ensures that the paper material's biodegradability advantage is preserved while the cellulose acetate material compensates for the insufficient gas phase retention.
Solution Approach 2:
The composite filter structure combines paper and cellulose acetate materials, where the paper provides biodegradability and the cellulose acetate provides superior gas phase constituent retention, achieving both requirements through material composition.
3Object-affected harmful factors
If paper is used as filter material, then environmental friendliness is improved, but taste quality deteriorates
Solution Approach 1:
The filter is segmented into a paper segment for environmental friendliness and a cellulose acetate segment for taste quality. This segmentation allows the paper material to provide environmental benefits while the cellulose acetate material maintains acceptable taste characteristics.
Solution Approach 2:
The composite filter combines paper and cellulose acetate materials, where the paper component ensures environmental friendliness and biodegradability while the cellulose acetate component maintains taste quality, achieving a balance between environmental and sensory requirements.
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 multi-segment filter achieves high biodegradability, improved filtration efficiency, and sensory characteristics similar to cellulose acetate filters, meeting environmental standards and providing a more enjoyable smoking experience.
Implementation Method 1
the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein
Implementation Method 2
The term 'biodegradable' refers to the filtering material, filter segment or multi-segment filter being able to exhibit a biodegradation of at least 90% after 6 months under controlled composting conditions
Data Source
AI summary
A multi-segment filter comprising a first and second filter segment; wherein the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein; and wherein the second filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising paper filtering material or other biodegradable filtering material.