Macrocyclic Metal-Ion Liquid Composition for Stable Antimicrobial Printing
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Solution Overview
Problem
Existing inkjet printing technologies face challenges in imparting antibacterial and antiviral activities to recording media due to the decomposition of organic preservatives and fungicides when heated during printing, and the storage stability issues caused by inorganic preservatives.
Innovation Solution
A liquid composition containing a macrocyclic compound enclosing a metal ion, water, and an organic solvent, which imparts antibacterial and antiviral activities to the recording medium, while maintaining excellent storage stability and minimizing coloring of recorded matter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If organic preservatives and fungicides are used in liquid compositions, then antibacterial and antiviral activities are improved, but the components decompose when heated during printing
Solution Approach 1:
The patent changes the chemical parameters of the preservative and fungicide components by using inorganic substances (silver ion, zinc ion, or copper ion) instead of organic compounds. This parameter change allows the composition to maintain stability under heating conditions while preserving antimicrobial efficacy, as inorganic metal ions do not decompose like organic preservatives do when heated.
2Stability of the object's composition
If inorganic preservatives are used in liquid compositions, then storage stability is improved, but coloring of recorded matter occurs
Solution Approach 1:
The patent applies local quality by selectively choosing specific inorganic metal ions (silver ion, zinc ion, or copper ion) that possess different properties. Among these, zinc ion and copper ion are particularly effective at minimizing coloring effects on recorded matter while maintaining storage stability, allowing the composition to be tailored for specific application requirements.
3Reliability
If conventional preservatives and fungicides are used, then corrosion proof and mildew-proof are enhanced, but adverse effects on quality of recorded matter occur
Solution Approach 1:
The patent employs a composite approach by combining inorganic metal ions with organic solvents and other formulation components to create a liquid composition that achieves both corrosion protection and mildew resistance without the harmful coloring effects. The inorganic metal ions provide the protective function while the organic solvent system ensures proper delivery and minimal interaction with the recording medium.
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 liquid composition effectively imparts antibacterial and antiviral activities to the recording medium, enhances storage stability, and reduces the adverse effects on the quality of recorded matter, such as coloring.
Implementation Method 1
a macrocyclic compound enclosing a metal ion
Data Source
AI summary
A liquid composition contains a macrocyclic compound enclosing a metal ion, water, and an organic solvent, wherein a recording medium where the liquid composition has been applied has at least one of an antibacterial activity or an antiviral activity.