A textile printing fluid set containing a pretreatment and a mixture of pigment and disperse dye
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Solution Overview
Problem
Existing digital printing technologies face challenges in achieving durable, high-quality images on various textile substrates, including natural and synthetic fibers, due to the need for different inks and pretreatments, which complicates the process of printing on diverse fabric types.
Innovation Solution
The development of an inkjet printing fluid set comprising an aqueous pretreatment composition with an ink-aggregating agent and an aqueous inkjet ink containing a mixture of disperse dye and pigment, along with a polymeric binder, which can be used on a wide range of textiles, enhancing image durability and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If disperse dyes are used for digital printing on textiles, then good color retention is achieved on hydrophobic fibers, but poor retention occurs on natural fibers
Solution Approach 1:
The patent applies universality by creating a single inkjet ink composition containing both disperse dyes and pigments that can be used on all textile substrates (natural and synthetic fibers) without requiring different ink formulations for different fiber types, thus achieving multi-functionality across diverse applications
Solution Approach 2:
The patent employs composite materials by formulating an ink composition that combines disperse dyes (for good retention on synthetic fibers) with pigments (for good retention on natural fibers) and polymeric binders, creating a composite colorant system that delivers reliable color retention across all fiber types
2Adaptability or versatility
If pigment is used for printing on textile, then coloring on top layer of various fibers is enabled, but lower color strength is achieved
Solution Approach 1:
The patent uses composite materials by combining pigment particles with disperse dyes and polymeric binders in a single ink formulation, creating a composite colorant system where the disperse dyes contribute to color strength on synthetic fibers while pigments provide versatility across all fiber types
Solution Approach 2:
The patent merges previously separate coloring approaches (pigment-based and disperse dye-based) into a single unified inkjet ink composition, allowing both colorant types to work synergistically to achieve both high color strength and broad fiber type compatibility
3Reliability
If different inks and pretreatments are used for different textile substrates, then optimal printing results are achieved on each fabric type, but process complexity increases
Solution Approach 1:
The patent applies universality by developing a single universal inkjet ink composition and corresponding pretreatment that can be used on all textile substrates (cotton, polyester, wool, silk, blends) without requiring separate formulations for different fabric types, thus eliminating the complexity of managing multiple ink and pretreatment variants
Solution Approach 2:
The patent uses homogeneity by creating a uniform ink formulation with consistent composition (disperse dyes, pigments, polymeric binders, solvents) that maintains the same properties across all applications, eliminating the need for different ink formulations for different substrates
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
This solution enables the production of durable, high-quality images on various textile substrates by using a universal ink composition that aggregates effectively with the pretreatment composition, addressing the challenge of diverse fabric types and improving color strength and stability.
Implementation Method 1
an aqueous pretreatment composition comprising an ink-aggregating agent
Implementation Method 2
Disperse dyes are the most commonly known type of digital textile inks. Typically, a dye-sublimation process takes place, and the disperse dye inks infuse into and dye the fabric
Implementation Method 3
an aqueous inkjet ink comprising a colorant and a first polymeric binder
Data Source
AI summary
The present disclosure provides a fluid set for printing on textile. The fluid set contains a pretreatment composition, and a mixture of a pigment and a disperse dye as the colorant. The blending of a pigment with a disperse dye as the colorant together with a suitable pretreatment composition provides better image quality.