Disperse Dye Ink Set for Wide-Gamut Textile Print Fastness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional ink jet textile printing struggles to achieve sufficient fastness, especially light fastness and resistance to chlorinated water, in producing a wide range of color gamut for commercial products like outdoor wear and swimming suits.
Innovation Solution
An ink set comprising a yellow ink with C.I. Disperse Yellow 65, a magenta ink with C.I. Disperse Red 362, and a cyan ink with C.I. Disperse Blue 60, optionally combined with other disperse dyes, is used for ink jet printing, followed by heat treatment to enhance color gamut and fastness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional disperse dyes are used in ink jet textile printing, then a wide color gamut can be achieved, but fastness (especially light fastness and chlorine fastness) is insufficient
Solution Approach 1:
The patent uses composite dye formulations combining multiple disperse dyes with different molecular structures and fastness characteristics. Specifically, it employs combinations such as C.I. Disperse Red 362 with C.I. Disperse Red 86, and C.I. Disperse Yellow 65 with C.I. Disperse Yellow 114, creating a composite color system that achieves both wide color gamut and excellent fastness properties.
Solution Approach 2:
The patent changes the chemical parameters of the disperse dyes by selecting specific dye molecules with optimized structures. It uses disperse dyes containing sulfonate groups and specific aromatic structures that provide both color variety and enhanced resistance to light and chlorine, thereby improving fastness while maintaining color gamut.
2Reliability
If disperse dyes with good fastness are used, then light fastness and chlorine fastness improve, but clarity and color brilliance deteriorate
Solution Approach 1:
The patent segments the color production into multiple dye components, where each dye contributes specific properties. For example, one dye provides brilliance while another provides fastness, and their combination achieves both goals. This segmentation allows optimization of individual dye functions while achieving overall color excellence.
Solution Approach 2:
The patent applies local quality by assigning different functional roles to different dye molecules within the same ink formulation. Certain dyes are selected for their clarity and brilliance properties, while others are selected for their fastness properties, with each component optimized for its specific local function within the composite color system.
3Adaptability or versatility
If fixed inks of 4 to 12 colors are used for ink jet textile printing, then multiple colors and patterns can be easily changed, but it is difficult to satisfy enough fastness for commercial products with different required fastness
Solution Approach 1:
The patent creates universal ink formulations that can serve multiple commercial applications with different fastness requirements. By using disperse dyes with inherently high fastness properties combined with heat treatment, the same ink set can produce printed matter suitable for both outdoor wear requiring high light fastness and other commercial applications, achieving multi-functionality across different product categories.
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 set enables the production of ink jet printed matter with excellent light fastness, resistance to friction, and chlorine fastness, suitable for various textile applications, including outdoor wear and advertising materials.
Implementation Method 1
forming an image by applying an ink on a fabric cloth by an ink jet recording method
Implementation Method 2
further subjecting the fabric cloth to heat treatment
Data Source
AI summary
An ink set for ink jet printing for improving a wide range of color gamut and providing excellent fastness on ink jet printed materials. The ink set including a yellow ink having Color Index Disperse Yellow 65, a magenta ink having Color Index Disperse Red 362, and a cyan ink having Color Index Disperse Blue 60.