Natural-Derived Carbide Ink Purification for Ejection Stability
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Solution Overview
Problem
Ink jet ink compositions using natural-derived carbides, such as vegetable charcoal, face issues with metal impurities leading to dispersion stability and ejection stability problems due to the presence of foreign substances.
Innovation Solution
An aqueous ink jet ink composition is developed using a natural-derived carbide that undergoes complex separation and acid dissolution treatments to remove water-soluble salts and ions, improving foreign substance resistance and ejection stability, comprising a carbide, a dispersant, and a water-soluble organic solvent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If natural-derived carbide is used as pigment for ink, then environmental friendliness is improved, but foreign substances and ejection defects are generated
Solution Approach 1:
The patent applies extraction by removing harmful metal impurities and foreign substances from natural-derived carbide through acid dissolution treatment and complex separation treatment. This extracts only the beneficial carbon particles while eliminating substances that cause ejection defects, thereby maintaining environmental friendliness while improving ejection stability.
Solution Approach 2:
The patent changes the purity parameter of the carbide pigment through chemical treatment processes. By controlling the acid dissolution and complex separation conditions, the carbide particles are purified to specific purity levels that prevent ejection defects while preserving the natural-derived environmental benefits.
2Adaptability or versatility
If natural-derived carbide is used as pigment for ink, then environmental friendliness is improved, but dispersion stability deteriorates due to metal impurities
Solution Approach 1:
The patent removes metal impurities that cause dispersion instability through acid dissolution treatment and complex separation treatment. This extraction process eliminates harmful substances while preserving the natural carbide structure, thereby maintaining environmental friendliness while achieving stable dispersion.
Solution Approach 2:
The patent modifies the compositional parameters of the carbide pigment by controlling the removal of metal impurities through chemical treatments. This changes the purity and surface properties of the carbide particles, enabling stable dispersion while preserving environmental benefits.
3Object-affected harmful factors
If complex separation treatment and acid dissolution treatment are performed on carbide, then foreign substance resistance is improved, but manufacturing process complexity increases
Solution Approach 1:
The patent applies preliminary action by performing acid dissolution treatment and complex separation treatment on carbide before incorporating it into the ink composition. This pre-treatment removes metal impurities and foreign substances in advance, ensuring high foreign substance resistance in the final ink product while streamlining the overall manufacturing process.
Solution Approach 2:
The patent uses acid solutions and chelating agents as intermediaries to facilitate the removal of metal impurities from carbide. These intermediary substances enable selective dissolution and complex formation, allowing efficient purification of carbide particles while maintaining a manageable manufacturing process.
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 treated carbide composition enhances foreign substance resistance and ejection stability, ensuring stable ink jet performance by efficiently removing metal impurities and improving dispersion stability.
Implementation Method 1
a complex separation treatment, which is a treatment to remove a complex obtained by mixing the untreated carbide and a chelating agent
Implementation Method 2
an acid dissolution treatment, which is a treatment to remove a water-soluble salt obtained by mixing the untreated carbide and an acid
Implementation Method 3
an aqueous ink jet ink composition which contains a natural-derived carbide, a dispersant, and a water-soluble organic solvent
Data Source
AI summary
An aqueous ink jet ink composition includes a natural-derived carbide, a dispersant, and a water-soluble organic solvent, the carbide is a carbide obtained by performing a complex separation treatment and an acid dissolution treatment on an untreated carbide, the complex separation treatment is a treatment to remove a complex obtained by mixing the untreated carbide and a chelating agent, and the acid dissolution treatment is a treatment to remove a water-soluble salt obtained by mixing the untreated carbide and an acid.