Pesticidal Control Device High Active Ingredient Loading
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Solution Overview
Problem
Current pesticidal control devices for animals, such as ear tags, face issues with insecticide and acaricide leakage due to high plasticizer content, requiring special packaging and handling, and have limited longevity and efficacy due to degradation by light and moisture.
Innovation Solution
A pesticidal control device incorporating a higher loading of insecticidal and acaricidal active ingredients with cellulose fibers and a polymer matrix, which reduces the need for plasticizers and maintains structural integrity, preventing premature bleeding and extending efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high levels of insecticidal active ingredient are incorporated into polymer control devices, then pesticidal efficacy is improved, but the device experiences bleeding (exudation) of insecticide requiring special packaging and handling
Solution Approach 1:
The patent uses a composite material system combining polyvinyl chloride polymer, plasticizer, stabilizer, and insecticidal active ingredient in specific proportions. This composite formulation allows high loading of active ingredient (40-55 wt.%) while maintaining device stability through the synergistic interaction of components that prevent bleeding during storage and transport.
2Ease of operation
If polyvinyl chloride is plasticized to perform satisfactorily as an ear tag, then flexibility and workability are improved, but the quantity of insecticide active ingredient that can be incorporated is reduced
Solution Approach 1:
The patent optimizes the proportions of plasticizer and stabilizer relative to the polymer to achieve the minimum necessary plasticization for satisfactory tag performance. This parameter optimization allows maximum incorporation of insecticidal active ingredient (40-55 wt.%) while maintaining adequate flexibility and workability for ear tag application.
3Quantity of substance
If the quantity of polymer matrix is reduced to accommodate higher insecticidal loading, then pesticidal efficacy is improved, but structural integrity deteriorates resulting in breakage and premature loss of efficacy
Solution Approach 1:
The patent formulates a composite material with optimized ratios of polymer, plasticizer, stabilizer, and high concentrations of insecticidal active ingredient (40-55 wt.%). This composite structure maintains adequate structural integrity despite reduced polymer content, preventing breakage and premature loss of efficacy while achieving high pesticidal loading.
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 device achieves higher insecticidal and acaricidal efficacy and stability, reducing the need for special packaging and handling, with improved longevity and control of pests, as demonstrated by the retention of active ingredients over several months.
Implementation Method 1
The combination of the cellulose fibers with the polymer or polymer matrix specifically allows for a higher level of liquid insecticidal and/or acaricidal active ingredient to be included within the control device of the present invention. In addition, the combination allows the insecticidal and/or acaricidal active ingredient to stay within the control device during transportation, storage, and handling and not bleed.
Data Source
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AI summary
The present invention relates to a pesticidal control device that includes at least one pesticidal active ingredient, cellulose fibers, and a polymer or polymer matrix. The combination of the cellulose fibers with the polymer allows for a higher loading of liquid pesticidal active ingredients within the pesticidal control device, maintains the active ingredient within the control device during transportation, storage and handling, and provides higher efficacy or control of pests during treatment. The pesticidal control device may be an ear tag, collar, or bee strip.