Cyan Dye Compound Composition for High Chroma and Light Fastness
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Solution Overview
Problem
Dyes with other structures exhibit low chroma, low light fastness, and easily aggregate, leading to issues in color development and stability, particularly in color filters, heat-sensitive transfer recording, and toners.
Innovation Solution
A compound represented by General Formula (1) with specific alkyl and halogenated phenyl groups is used, providing a cyan color with high chroma, light fastness, and storage stability, incorporated into inks, resist compositions, and toners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dyes with other structures are used, then color development is achieved, but chroma is low and light fastness is poor
Solution Approach 1:
The patent applies parameter changes by systematically modifying the molecular structure of the dye, specifically introducing a triazole ring combined with specific substituent groups (R1-R6) at defined positions. This structural parameter change transforms the dye's properties to achieve both high chroma and excellent light fastness, resolving the contradiction between these two attributes.
Solution Approach 2:
The patent employs composite material principles by creating a complex molecular structure that combines a triazole core with multiple substituent groups (alkyl, alkoxy, aryl, etc.). This composite structural approach integrates different functional groups that collectively provide both intense coloration (high chroma) and resistance to fading (light fastness).
2Reliability
If dyes with other structures are used, then coloring is achieved, but the dye easily aggregates
Solution Approach 1:
The patent uses parameter changes by introducing specific substituent groups (R1-R6) with varying steric and electronic properties at defined positions on the triazole ring. These parameter modifications alter the dye's intermolecular interactions, preventing aggregation and ensuring both storage stability and dispersion stability in the final product.
3Manufacturing precision
If pigment is used as coloring agent, then color filter production is achieved, but depolarization and reduction in contrast ratio occur
Solution Approach 1:
The patent applies mechanics substitution by replacing the traditional pigment-based coloring system with a dye-based system. This substitution eliminates the harmful effects of pigment particles (depolarization, reduced contrast) while maintaining or improving color reproducibility and spectral characteristics through the carefully designed triazole-based molecular structure.
4Device complexity
If anthraquinone-based cyan color is used for textile printing, then sublimation is achieved, but color development is insufficient
Solution Approach 1:
The patent applies parameter changes by developing a novel dye structure with a triazole ring combined with specific substituent patterns that enhance both sublimation capability and color development. The molecular parameters are optimized to achieve intense coloration while maintaining the simplicity of the sublimation printing process.
Data Source
Figure 1
AI summary
The purpose of the present invention is to provide a compound that exhibits a cyan color and that has the properties of a high saturation, a high light resistance, and a high solubility. This compound is a compound represented by general formula (1). In formula (1), R1 and R2 each independently represent a linear, branched, or cyclic alkyl group having 6 to 12 carbons; R3 represents a 4-alkylphenyl group, a 4-halophenyl group, or a 3-alkoxyphenyl group; R4 represents a linear, branched, or cyclic alkyl group having 1 to 8 carbons; and R5 represents a linear, branched, or cyclic alkyl group having 1 to 8 carbons or a benzyl group.