Textile Printing Ink Polymer Composition for Wet Rubbing Fastness
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Solution Overview
Problem
Existing textile printing methods face challenges in achieving excellent fastness to wet rubbing without requiring adjustments to heating temperature, ink ejection amount, and printing times, which vary based on fabric type.
Innovation Solution
A textile printing ink containing a polymer with a structural unit derived from an ester of (meth)acrylic acid and a secondary alcohol, formulated with specific solvent and solvent content ratios, is used for inkjet printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional textile printing methods are used with adjustments to heating temperature, ink ejection amount, and printing times, then fastness to washing and fastness to rubbing can be improved, but the process complexity and difficulty of operation increase due to the need for fabric-type-specific parameter adjustments
Solution Approach 1:
The invention changes the chemical composition parameters of the printing ink by incorporating a polymer with specific structural units (derived from esters of (meth)acrylic acid and secondary alcohols, and derived from isocyanates). This compositional parameter change enables excellent fastness to wet rubbing without requiring adjustments to processing parameters such as heating temperature, ink ejection amount, or printing times, thus resolving the contradiction between reliability and ease of operation.
2Reliability
If conventional textile printing methods are used with fabric-specific parameter adjustments, then printing quality can be maintained, but the manufacturing time and productivity decrease due to the need for multiple adjustment steps
Solution Approach 1:
The invention modifies the chemical composition of the printing ink by incorporating specific polymer structural units, which fundamentally changes the ink's performance characteristics. This allows the ink to achieve excellent fastness to wet rubbing under standard printing conditions without requiring multiple adjustment steps for different fabric types, thereby improving manufacturing efficiency while maintaining printing quality.
3Reliability
If a polymer with ester of (meth)acrylic acid and secondary alcohol is used in the textile printing ink, then fastness to wet rubbing is significantly improved, but the ink formulation complexity increases
Solution Approach 1:
The invention creates a composite ink formulation by combining a polymer containing specific structural units (derived from esters of (meth)acrylic acid and secondary alcohols, and derived from isocyanates) with conventional printing ink components. This composite approach leverages the excellent fastness properties of the specialized polymer while maintaining the functional properties of conventional inks, achieving high reliability without excessive formulation complexity.
Data Source
AI summary
An object of the present invention is to provide a novel textile printing ink that can produce a textile printed product exhibiting excellent fastness to wet rubbing. The above-described problem can be solved by a textile printing ink containing a polymer having a structural unit derived from an ester of (meth)acrylic acid and a secondary alcohol.