Textile printing ink jet ink composition and textile printing ink jet ink composition set
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Solution Overview
Problem
Existing textile printing ink jet compositions face limitations in color development properties, fastness properties, and stability, particularly in maintaining color fidelity and resistance to external forces and environmental conditions.
Innovation Solution
A textile printing ink jet composition comprising a dioxazine pigment, a urethane resin particle with a crosslinkable group, and a polyethylene wax lubricant, where the dioxazine pigment content is between 0.5 to 1.5 mass% and the lubricant has a melting point of 130°C or more, forming a protective resin film that enhances color retention and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the ink composition includes resin dispersoids and color materials for light resistance, then the light resistance of printed fabric is improved, but the color development properties and stability have room for improvement
Solution Approach 1:
The patent optimizes the pigment concentration parameter to 0.5-1.5 mass% and lubricant content to 0.4-2.5 mass% to achieve balanced performance. It also specifies resin particle size (0.1-10 μm) and uses crosslinkable group-containing resins that undergo chemical changes during curing to improve both light resistance and color stability simultaneously
Solution Approach 2:
The ink composition combines multiple materials with complementary functions: dioxazine pigments for color and light resistance, crosslinkable resins for film formation and durability, and high-melting-point lubricants for stability. This composite approach resolves the contradiction by integrating materials that collectively provide both light resistance and improved color development properties
2Reliability
If resin particles form a protective film, then fastness properties are improved, but aggregation of resin particles occurs reducing stability
Solution Approach 1:
The patent introduces lubricants with melting points of 130°C or higher as intermediary substances that prevent resin particle aggregation during storage and transport. These high-melting-point lubricants maintain physical separation of resin particles without interfering with the formation of the protective film during the printing and curing process, thus resolving the contradiction between fastness properties and compositional stability
3Reliability
If pigment content is increased for better color development, then color development properties are improved, but stability and rubbing fastness properties deteriorate
Solution Approach 1:
The patent optimizes the pigment concentration parameter to a specific range (0.5-1.5 mass%) rather than simply increasing it. This optimized concentration, combined with controlled resin particle size (0.1-10 μm) and crosslinking mechanisms, achieves excellent color development while maintaining stability and rubbing fastness properties through the formed protective film
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 improved color development, light resistance, heat resistance, and stability, with reduced aggregation of resin particles and enhanced rubbing fastness properties, allowing for better color reproduction and durability on fabrics.
Implementation Method 1
the resin particle may be a particle of a urethane resin having a crosslinkable group
Implementation Method 2
the lubricant may have a melting point of 130° C. or more
Data Source
AI summary
A textile printing ink jet ink composition includes a dioxazine pigment, a resin particle, and a lubricant, wherein the content of the dioxazine pigment is 0.5 to 1.5 mass % based on the total amount of the ink composition.