Textile Ink Set With Dual Pre-Treatment for Texture and Stability
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Solution Overview
Problem
Inkjet printing with aqueous pigment inks in textile printing faces challenges such as fabric texture deterioration, poor storage stability, and degradation of liquid-contact components in the printing apparatus, which are not adequately addressed by existing technologies.
Innovation Solution
An ink set comprising an aqueous pigment ink, pre-treatment fluid A containing amino-modified silicone, and pre-treatment fluid B containing a water-soluble amine and an organic acid, with a specific molar ratio of amino groups to acid groups, is used in conjunction with a fluid applying method and apparatus to enhance texture and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If aqueous pigment ink is used for inkjet printing on textile substrates, then environmental friendliness and cost reduction are improved, but fabric texture deterioration and poor storage stability occur
Solution Approach 1:
The patent applies pre-treatment fluid A containing amino-modified silicone and pre-treatment fluid B containing water-soluble amine and organic acid to the substrate before inkjet printing. This preliminary treatment modifies the substrate surface to improve ink fixation and prevent fabric texture deterioration, while also enhancing storage stability of the printed product.
Solution Approach 2:
The patent introduces pre-treatment fluids as intermediary substances between the aqueous pigment ink and the substrate. These fluids contain specific components (amino-modified silicone, water-soluble amine, organic acid) that mediate the interaction between ink and substrate, preventing harmful effects while maintaining environmental benefits.
2Loss of substance
If aqueous pigment ink is used for inkjet printing, then industrial wastewater reduction is improved, but fabric texture deterioration and component degradation occur
Solution Approach 1:
The patent applies pre-treatment fluids to the substrate before inkjet printing to prevent fabric texture deterioration. The amino-modified silicone and water-soluble amine components prepare the substrate surface to receive the ink properly, preventing damage while maintaining the environmental advantage of reduced wastewater.
Solution Approach 2:
The pre-treatment fluids act as intermediary substances that protect the fabric texture during the inkjet printing process with aqueous pigment ink, allowing the environmentally friendly printing method to proceed without causing harmful effects to the substrate.
3Ease of operation
If conventional pre-treatment methods are used, then ease of operation is maintained, but fabric texture deterioration and component degradation are not adequately prevented
Solution Approach 1:
The patent divides the pre-treatment process into two separate fluids: pre-treatment fluid A containing amino-modified silicone and pre-treatment fluid B containing water-soluble amine and organic acid. This segmentation allows each fluid to perform specific functions, improving protection against component degradation while maintaining ease of operation through straightforward sequential application.
Solution Approach 2:
The patent uses composite pre-treatment fluids containing multiple functional components (amino-modified silicone, water-soluble amine, organic acid) with a specific molar ratio relationship (0.08 ≤ b/a ≤ 1.00, where a is total moles of acid groups and b is total moles of amino groups). This composite formulation provides enhanced protection against fabric texture deterioration and component degradation while maintaining operational simplicity.
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 minimizes fabric texture deterioration, improves storage stability, and reduces the likelihood of component degradation in the inkjet printing apparatus, while ensuring excellent color development and image quality.
Implementation Method 1
pre-treatment fluid A containing an amino-modified silicone
Implementation Method 2
pre-treatment fluid B containing a water-soluble amine and an organic acid
Implementation Method 3
The inkjet printing method has rapidly gained popularity in recent years
Data Source
AI summary
An ink set contains an aqueous pigment ink, a pre-treatment fluid A containing an amino-modified silicone, and a pre-treatment fluid B containing a water-soluble amine and an organic acid,wherein the following relationship is satisfied:0.08≤b/a≤1.00,where a represents a total moles of acid groups of the organic acid in the pre-treatment fluid B and b represents a total moles of amino groups of the organic acid in the pre-treatment fluid B, wherein the pre-treatment fluid A contains no organic acid.