Silver Carboxylate Ink for Conductive Patterns on Glass and Metal
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Solution Overview
Problem
Existing silver-containing compositions for producing metallic colors and conductive structures are costly due to high precious metal content, particularly gold, palladium, and platinum, and lack optimal conductivity and storage stability, while also containing unnecessary metal components.
Innovation Solution
A composition comprising silver carboxylate and terpene, with minimal precious metal content, specifically designed for inkjet and screen printing methods, achieving high conductivity and gloss through controlled sintering processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silver-containing compositions include other precious metal components (gold, palladium, platinum) to improve conductivity and metallic color, then the electrical conductivity and gloss are enhanced, but the manufacturing cost increases significantly
Solution Approach 1:
The patent extracts and removes unnecessary precious metal components (gold, palladium, platinum) from the composition, retaining only silver as the essential conductive and color-providing element. This extraction eliminates cost burdens while preserving the core functionality of electrical conductivity and metallic appearance.
Solution Approach 2:
The patent replaces expensive precious metals with a more economical silver-based formulation. By using silver carboxylate as the primary component and eliminating the need for additional precious metal additives, the composition achieves cost reduction while maintaining functional performance.
2Reliability
If silver-containing compositions include other precious metal components to enhance conductivity, then the electrical performance improves, but the resource consumption of rare metals increases
Solution Approach 1:
The patent extracts and eliminates unnecessary consumption of rare precious metals (gold, palladium, platinum) by designing a composition that relies primarily on silver. This extraction principle reduces the demand for scarce resources while achieving the required electrical conductivity through optimized silver content and formulation.
3Ease of manufacture
If the silver content is reduced to lower cost, then the manufacturing cost decreases, but the electrical conductivity and metallic gloss deteriorate
Solution Approach 1:
The patent applies parameter changes by optimizing the silver content and formulation composition to achieve the minimum effective concentration required for good conductivity and gloss. By carefully controlling the silver carboxylate content and using appropriate terpenic solvents and additives, the composition maintains functional performance at reduced overall precious metal loading.
Solution Approach 2:
The patent uses composite material formulation by combining silver carboxylate with specific terpenic solvents and additives to enhance the efficiency of silver utilization. This composite approach ensures that the silver particles are well-distributed and effectively conductive, achieving optimal performance with reduced total metal content.
4Ease of manufacture
If the silver content is reduced to lower cost, then the manufacturing cost decreases, but the metallic gloss and precious metal layer quality deteriorate
Solution Approach 1:
The patent optimizes formulation parameters including silver particle size distribution, solvent composition, and additive selection to enhance light reflection and metallic gloss. By controlling these parameters, the composition achieves high gloss finish with reduced silver content, maintaining aesthetic quality while lowering cost.
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 composition achieves high electrical conductivity and metallic gloss with reduced precious metal usage, offering cost-effective and stable silver-containing coatings for various substrates.
Implementation Method 1
treating the precursor with the pattern according to a treatment step that is selected from the group consisting of: a) at a temperature of more than 200° C. for at least 10 minutes
Implementation Method 2
b) a photonic sintering process
Data Source
AI summary
The invention relates to a composition containing at least the two following components: a) a silver carboxylate, and b) a terpene, an ink for ink jet printing and a paste for printing with a screen printing method, wherein the ink or the paste, respectively, each contains the composition according to the invention. The invention also relates to a method for producing a pattern on a substrate, at least comprising the following steps: A) providing a substrate and a composition containing at least one silver carboxylate and one terpene; B) applying the composition to the substrate while preserving a precursor with the pattern; C) treating the precursor with the pattern according to a treatment step that is selected from the group consisting of: a) at a temperature of more than 200° C. for at least 10 minutes, wherein the treatment is preferably carried out in an atmosphere of air; b) a photonic sintering process; c) a combination of a) and b), wherein the substrate to which the pattern is applied is preserved. The invention further relates to a printer, an item that is coated at least in part, and a use of the composition according to the invention for applying a pattern.