Antimicrobial Matrix Composition With Uniform Copper Sulfate Fixation
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Solution Overview
Problem
Current methods for incorporating antimicrobial copper compounds into matrices, such as fabrics and leathers, often result in uneven distribution and require particle size control, limiting their effectiveness and durability against microbial growth.
Innovation Solution
A method involving the use of alkaline copper sulfate (Cu4SO4(OH)6), which is insoluble and has low diffusion, ensuring uniform distribution and fixation within the matrix, providing sustained antimicrobial properties even after washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If copper particles or wires are used to deliver antimicrobial properties, then the antimicrobial agent can be incorporated into the matrix, but the distribution is uneven and effectiveness is reduced
Solution Approach 1:
The patent changes the physical-chemical parameters of the copper compound by using alkaline copper sulfate instead of metallic copper particles or wires. This chemical form allows for homogeneous distribution throughout the matrix while maintaining antimicrobial effectiveness, resolving the contradiction between incorporation quantity and distribution uniformity.
Solution Approach 2:
The patent introduces an intermediary substance (alkaline copper sulfate) that serves as a carrier for the antimicrobial copper compound. This intermediary enables uniform distribution within the matrix structure, overcoming the limitation of direct particle or wire incorporation which results in uneven distribution.
2Quantity of substance
If metallic copper is used, then the material can be incorporated into the matrix, but it requires oxidation to activate and release the antimicrobial agent
Solution Approach 1:
The patent changes the oxidation state parameter of copper from metallic (Cu⁰) to ionic form (Cu²⁺ in alkaline copper sulfate). This eliminates the need for oxidation activation step while maintaining antimicrobial activity, as the copper is already in its active ionic state upon incorporation.
3Quantity of substance
If copper wires are used with internal structure, then the antimicrobial agent can be delivered to surfaces, but concentration gradients prevent activity on one side only
Solution Approach 1:
The patent applies homogeneity by distributing the alkaline copper sulfate uniformly throughout the entire matrix volume rather than concentrating it in wire structures. This eliminates concentration gradients and ensures antimicrobial activity is present throughout the matrix, not just at specific locations or surfaces.
4Area of stationary object
If macro dispersion is used to deliver antimicrobial properties, then the copper can be distributed across surfaces, but the effectiveness is low
Solution Approach 1:
The patent changes the dispersion scale parameter from macro (visible particles/wires) to molecular/ionic level distribution of alkaline copper sulfate. This fine-level distribution maintains broad surface coverage while significantly enhancing antimicrobial effectiveness through uniform contact with microorganisms.
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 method achieves homogeneous incorporation and long-lasting antimicrobial activity, effectively inhibiting bacterial and fungal growth across the matrix, maintaining effectiveness through multiple wash cycles and varied applications.
Implementation Method 1
The present invention consists of a matrix containing a compound of a transition metal which confers antimicrobial properties... incorporating said compound of a transition metal in a matrix of animal, vegetable or synthetic origin, with a uniform distribution and with high level of fixation
Data Source
AI summary
An impregnable matrix of plant, animal or synthetic origin or mixtures of same in different proportions, containing an antimicrobial compound uniformly distributed throughout the whole composition, in which the compound is a compound of a transition metal, particularly Cu4SO4(OH)6. In addition, a method is provided for impregnating the matrix with a compound, comprising steps of (a) absorbing or impregnating the antimicrobial compound; (b) centrifuging or pressing or crushing; (c) air drying; and (d) binding and obtaining the active principle. Moreover, the use of the method for the preparation of a matrix having antimicrobial properties and the use of the matrix in the preparation of solid supports or solid materials for cosmetic, pharmaceutical, medical or veterinary use are provided.