Dye composition and dyeing method for elastic fabric
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Solution Overview
Problem
Conventional dyeing methods fail to achieve uniform color distribution and result in serious chromatic aberration on elastic fabrics, especially when the elastic fiber content is high, leading to low resistance to washing and other forms of wear.
Innovation Solution
A dye composition and method involving an ion modifier and a dye that form an ionic bond with the elastic fiber, using an ionizable terminal group and specific dye compounds to ensure strong bonding and even dyeing, thereby improving color fastness and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional dyeing method is used on elastic fabric, then the dyeing process is simple, but the color distribution is uneven and chromatic aberration occurs
Solution Approach 1:
The patent introduces an ion modifier as an intermediary substance that mediates between the dye and elastic fiber. The ion modifier contains ionizable terminal groups that interact with both the dye molecules and the elastic fiber surface, facilitating uniform dye distribution and preventing chromatic aberration while maintaining a relatively simple dyeing process
Solution Approach 2:
The patent changes the chemical parameters of the dyeing system by introducing ion modifiers with specific ionizable terminal groups. This modifies the electrochemical environment at the fiber-dye interface, enabling better color distribution uniformity and reducing chromatic aberration without significantly complicating the overall dyeing process
2Strength
If elastic fiber content is increased to improve fabric elasticity, then tensile strength and elasticity are improved, but dyeing uniformity deteriorates and chromatic aberration becomes more serious
Solution Approach 1:
The ion modifier serves as a mediator that bridges the dye and high-content elastic fibers. Its ionizable terminal groups create favorable electrochemical conditions that enable uniform dye penetration even when elastic fiber content is high, thereby maintaining both tensile strength and dyeing uniformity
Solution Approach 2:
The ion modifier creates locally optimized conditions at the fiber-dye interface by introducing ionizable terminal groups. This local chemical modification ensures uniform dye distribution around each elastic fiber, preventing the chromatic aberration that typically occurs with high elastic fiber content
3Reliability
If conventional dyeing is used on elastic fabric, then the process is straightforward, but resistance to washing and wear is low
Solution Approach 1:
The ion modifier acts as a bonding intermediary that creates stronger interactions between the dye and elastic fiber. The ionizable terminal groups form stable complexes that improve color fastness to washing and wear, while the dyeing process remains relatively straightforward
Solution Approach 2:
The patent modifies the electrochemical parameters of the dyeing system by introducing ion modifiers. This creates stronger and more stable dye-fiber bonds, significantly improving resistance to washing and wear without substantially increasing process complexity
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 method ensures optimal Color Fastness to Water, Washing, Perspiration, and Rubbing, reducing the occurrence of uneven color distribution and chromatic aberration, while maintaining the elastic fabric's properties and reducing water usage in subsequent washing processes.
Implementation Method 1
the elastic fiber has a first ion by contacting the ion modifier, the first ion has a first charge, the dye has a second ion, the second ion has a second charge opposite to the first charge, and the first ion of the elastic fiber and the second ion of the dye together form an ionic bonding
Data Source
AI summary
A dye composition and a dyeing method for an elastic fabric are provided. The dyeing method includes: (a) providing an elastic fabric which includes an elastic fiber; and (b) immersing the elastic fabric in a dye composition. The dye composition includes an ion modifier and a dye. The elastic fiber of the elastic fabric has a first ion by contacting the ion modifier, and the first ion has a first charge; the dye has a second ion, and the second ion has a second charge opposite to the first charge. The first ion of the elastic fiber and the second ion of the dye together form an ionic bonding.