Cigarette Patch Design Preventing Glue Combustion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cigarettes with adhesive patches connecting the filter and active portion can lead to inhalation of harmful substances produced by the combustion of glue, which smokers may not notice when smoking past the normal limit.
Innovation Solution
A cigarette design where the patch has a non-adhesive first portion wrapped around the active portion and an adhesive second portion glued to the filter, with optional treatments for reduced air permeability and flammability, preventing the combustion of glue and maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an adhesive patch is used to connect the filter and active portion, then structural integrity is improved, but harmful combustion products are generated
Solution Approach 1:
The patch is divided into two distinct portions: a non-adhesive first portion that contacts the active portion and a second portion that may be adhesive. This segmentation allows the adhesive material to be isolated from the combustion zone, preventing harmful substance generation while maintaining structural integrity through the LIP treatment on the first portion.
Solution Approach 2:
The adhesive substance is extracted or removed from the first portion of the patch that contacts the active portion. By eliminating the adhesive from the combustion zone, the invention prevents the generation of harmful combustion products while still providing structural connection through the non-adhesive portion treated with LIP material.
2Stability of the object's composition
If the patch is wrapped around the active portion with adhesive, then connection stability is improved, but inhalation of harmful substances occurs
Solution Approach 1:
Different portions of the patch are given different properties: the first portion contacting the active portion is made non-adhesive and treated with LIP material to prevent harmful substance generation, while the second portion may retain adhesive properties for connection stability. This local differentiation resolves the contradiction between stable connection and harmful substance prevention.
Solution Approach 2:
A non-adhesive intermediate portion acts as a mediator between the active portion and any adhesive elements. This intermediate layer prevents direct contact between combustion products and adhesive substances, thereby eliminating harmful inhalation while maintaining connection stability through the intermediary structure.
3Strength
If adhesive substance is applied to the patch, then structural connection is improved, but self-extinguishing capability is reduced
Solution Approach 1:
The patch is segmented into a non-adhesive first portion treated with LIP material for self-extinguishing and a second portion where adhesive may be applied for structural connection. This segmentation allows both self-extinguishing capability and structural connection to coexist without interfering with each other.
Solution Approach 2:
The LIP treatment is applied locally to the first portion of the patch that contacts the active portion, while the adhesive substance is confined to the second portion. This local application of different properties ensures that self-extinguishing capability is maintained at the critical combustion interface while structural connection is provided by the adhesive portion.
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
Prevents inhalation of harmful combustion products and ensures self-extinguishing, maintaining the cigarette's structural integrity and preventing burning down to the filter.
Implementation Method 1
an adhesive substance is spread on the inside surface of the second portion 4b of the patch 4, so as to define a stable, uniform connection
Implementation Method 2
when it is reached by the burning section of the cigarette
Data Source
Figure 1~2D
Figure 3A~3B
AI summary
A cigarette comprising a filter (2), an active portion (3) for releasing a substance to be inhaled and a patch (4) connecting the active portion (3) and the filter (2) to each other; the patch (4) has a first annular end portion (4a) wrapped freely around the active portion (3), and a second, annular portion (4b), adjacent to the first annular portion (4b) and glued around the filter (2) and the active portion (3).