Color Change Composition Copolymer Background Elimination
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Solution Overview
Problem
Existing color change compositions lack rapid and distinct color changes, making it difficult for users to unambiguously determine if a stimulus has been applied, particularly in industrial and commercial products where clear indication of stimulus exposure is crucial.
Innovation Solution
A color change composition incorporating a copolymer that eliminates background color during transition from a first color state to a second, combined with a color former and color developer system, which can be in a single or multi-component form, and may include additional pigments and excipients, applied to various substrates for visible stimulus indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a color change composition is used to indicate stimulus exposure, then user awareness of stimulus application is improved, but the color change may not be rapid or distinct enough to provide unambiguous indication
Solution Approach 1:
The patent modifies the chemical composition parameters of the color change system by incorporating specific copolymers with controlled molecular weights and compositions. This adjusts the reaction kinetics and color transition characteristics to achieve both rapid response and distinct visual change.
Solution Approach 2:
The invention uses a composite color change composition combining multiple components including copolymers, color formers, and color developers. This composite approach allows optimization of both response speed and color change distinctness through synergistic interactions between components.
2Measurement precision
If background color is present in the color change composition, then the composition maintains stability, but the color change becomes less distinct and harder to detect
Solution Approach 1:
The patent removes or minimizes background color components from the composition while maintaining the functional stability of the color change system. This extraction of interfering elements enhances color change visibility without compromising composition stability.
Solution Approach 2:
The invention specifically addresses color properties by selecting components that minimize unwanted background coloration while maximizing the contrast and distinctness of the intended color change response to stimulus.
3Device complexity
If a simple color indicator system is used, then the device complexity is reduced, but the ability to provide rapid and distinct color changes is compromised
Solution Approach 1:
The patent optimizes parameters within a relatively simple color indicator system by carefully selecting copolymer compositions and ratios. This allows achievement of rapid and distinct color changes without significantly increasing system 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 composition achieves rapid and distinct color changes, providing unambiguous visual cues of stimulus application, enhancing user awareness and product effectiveness across different industrial and commercial applications.
Implementation Method 1
an amount of a copolymer sufficient to eliminate background color during transition from a first color state to a second color state
Data Source
AI summary
Aspects of the invention include color change compositions having a color former and color developer composition that transitions from a first color state to a second color state upon application of an applied stimulus and an amount of a copolymer sufficient to eliminate background color of the color former and color developer composition during transition from the first color state to the second color sate. Methods for preparing and devices employing the color change compositions of the invention are also described.