Metal-Complex Textile Ink Composition for Fastness and Clog Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ink jet textile printing inks face challenges in achieving high light fastness and water fastness, particularly when the content of sulfonic acid group-containing dyes is increased to improve storage stability and prevent clogging.
Innovation Solution
An ink jet textile printing ink composition containing a sulfonic acid group-containing dye with a ligand coordinated to a metal atom, specifically chromium, along with other dyes and compounds like 2-pyrrolidone, to enhance light fastness, water fastness, and storage stability while preventing clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the content of sulfonic acid group-containing dye is increased to improve storage stability and prevent clogging, then storage stability is improved, but light fastness deteriorates
Solution Approach 1:
The patent changes the chemical structure parameters of the dye by introducing a specific ligand formula with coordinated metal atoms. This structural modification allows the dye to achieve both high storage stability and high light fastness simultaneously, resolving the contradiction between these two properties.
Solution Approach 2:
The patent creates a composite dye structure by coordinating metal atoms with organic ligands containing sulfonic acid groups. This composite approach combines the benefits of metal coordination (improving light fastness) with sulfonic acid groups (maintaining storage stability and preventing clogging).
2Manufacturing precision
If conventional dyes are used to achieve good color reproducibility, then color quality is improved, but light fastness deteriorates
Solution Approach 1:
The patent modifies the chemical parameters of conventional dyes by introducing coordinated metal atoms and specific ligand structures. This changes the electronic structure and bonding characteristics, thereby improving light fastness while preserving the color properties that make conventional dyes attractive.
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 ink composition achieves good light fastness, water fastness, and storage stability while maintaining recovery from clogging, improving the overall quality of textile prints.
Implementation Method 1
a sulfonic acid group-containing dye having a ligand coordinated to a metal atom
Implementation Method 2
causing the ink jet textile printing ink composition to adhere to a recording medium
Data Source
Figure 1
AI summary
An ink jet textile printing ink composition contains a sulfonic acid group-containing dye having a ligand coordinated to a metal atom, the ligand being represented by Formula (1) below: wherein at least one of R1 and R3 represents SO3 - or SO3Y, where Y represents a hydrogen atom, an alkali metal atom, or an alkaline earth metal atom; when not representing SO3 - or SO3Y, R1 and R3 represent a halogen atom or a hydrogen atom; R2 and R4 each independently represent a hydrogen atom, a halogen atom, a sulfo group, a nitro group, an aryl group, a sulfonamide group, a carboxy group, an alkyl group of 1 to 4 carbon atoms, SO2NHR5, or COOR5, where R5 represents a hydrogen atom or an alkyl group; and X represents a metal atom.