Insecticidal Thread Structure for Independent Release Control
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Solution Overview
Problem
Existing insecticidal fabrics and mosquito nets face reduced efficiency due to sunlight and heat exposure, and controlling the release of multiple insecticides and synergists within a polymer matrix is challenging, leading to difficulties in achieving a desired release rate.
Innovation Solution
A method for producing insecticidal threads where different insecticides and synergists are incorporated into separate filaments, allowing for independent adjustment of their migration speeds using migration promoters and inhibitors, enabling controlled release and enhanced efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple insecticides and synergists are incorporated into a single polymer matrix, then the fabric provides comprehensive insect protection, but the migration and release of different insecticides cannot be controlled independently
Solution Approach 1:
The invention divides the insecticidal system into separate filaments, each containing specific insecticides or synergists. This segmentation allows independent control of migration and release for each substance while maintaining comprehensive protection when the filaments are combined in a yarn or fabric structure.
2Duration of action of stationary object
If insecticides are incorporated inside a fibre structure for gradual migration, then long-lasting efficiency is achieved, but the release rate of different insecticides cannot be adjusted independently
Solution Approach 1:
By separating different insecticides into different filaments, each filament can be engineered with specific migration properties. This enables independent adjustment of release rates for each insecticide while maintaining gradual migration and long-lasting efficiency through the fibre structure.
Solution Approach 2:
Different filaments within the same yarn can have different local qualities regarding insecticide content and migration characteristics. This allows tailored release profiles for specific insecticides based on their individual requirements for efficacy and resistance management.
3Manufacturing precision
If a migration promoter or inhibitor is added to control insecticide release, then the release rate of one substance is improved, but the migration of other insecticides or synergists is affected
Solution Approach 1:
Placing different insecticides and synergists in separate filaments eliminates cross-interference with migration promoters or inhibitors. Each filament can be treated independently, allowing precise control of release rates without unwanted interactions between different chemical substances.
4Reliability
If insecticides are incorporated into the yarn for controlled release, then efficiency under sunlight and heat is improved, but the complexity of production increases
Solution Approach 1:
The segmented filament structure allows for modular production where different insecticides can be incorporated into different polymer batches independently, then combined during yarn spinning. This approach maintains controlled release properties while simplifying production compared to attempting to mix multiple insecticides into a single polymer matrix.
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
This approach allows for optimal release of insecticides and synergists, effectively maintaining long-term efficiency and combating insect resistance, even under exposure to sunlight and heat, while providing a stable and efficient insecticidal barrier.
Implementation Method 1
the insecticide migrates from the interior of the thread to the surface of the thread
Data Source
Figure 1
Figure 2
Figure 3~4a
AI summary
An insecticidal thread comprising a first type of filaments and a second type of filaments according to the invention. The first type of filaments has an insecticide or a synergist or both incorporated in a polymeric material of the first type of filaments. The second type has an insecticide or synergist or both incorporated in a polymeric material of the second type of filaments. The content of insecticide or synergist in the second type of filaments is different from the content of insecticide or synergist of the first type of filaments. Alternatively, the thread is an extruded monofilament with a first and a second part with insecticide and/or synergist.