Laundry Care Composition with pH-Responsive Color-Changing Compound
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Solution Overview
Problem
Conventional laundry care compositions that use bluing or hueing agents to maintain the appearance of textile articles often result in deep, dark blue colors, which may not be appealing to all consumers, and there is a need for compositions that can effectively enhance the perceived whiteness or hue of textiles while offering a more versatile color option.
Innovation Solution
A laundry care composition containing a compound that changes color from a first state to a second perceptibly different state, specifically designed to enhance the apparent whiteness or hue of textiles, using specific chemical structures that can alter their color in response to pH changes, temperature, or exposure to light, thereby providing a more aesthetically pleasing and versatile color option.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If bluing or hueing agents are incorporated into laundry care compositions to enhance the perceived whiteness of textiles, then the apparent whiteness or hue of textile articles is improved, but the composition exhibits deep, dark blue coloration that may not be appealing to all consumers
Solution Approach 1:
The patent applies parameter changes by utilizing compounds that alter their color state in response to changes in physical or chemical parameters such as pH, temperature, or light exposure. The compound transitions from a first color state (potentially colorless or light-colored) to a second color state (bluish hue) under specific conditions during the laundering process, allowing the composition to provide both aesthetic appeal in its initial state and effective bluing performance during use
Solution Approach 2:
The invention employs dynamic color-changing compounds that can shift between different color states rather than relying on static deep blue colorants. This dynamic behavior allows the composition to adapt its appearance based on environmental conditions, providing consumer appeal in the bottle while delivering effective whiteness enhancement during the wash cycle
2Object-affected harmful factors
If conventional bluing agents are used at sufficient levels to effectively mask yellowing, then the yellowing of textile articles is reduced, but the composition renders a deep, dark blue hue that limits consumer preference
Solution Approach 1:
The patent utilizes compounds whose color expression is controlled by parameter changes during the laundering process. These compounds remain in a first color state (colorless, light-colored, or non-blue) under storage and application conditions, then transition to a second color state that effectively masks textile yellowing when exposed to specific conditions such as pH changes, heat, or light during the wash cycle, thereby providing both effective yellowing protection and versatile color options
Solution Approach 2:
The invention applies preliminary action by incorporating compounds in a latent or inactive color state that will only express the desired bluing effect when triggered by specific conditions during the laundering process. This allows the composition to maintain aesthetic appeal and color versatility in the product form while ensuring effective yellowing masking performance is activated at the appropriate time
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 effectively enhances the perceived whiteness or hue of textiles, offering a wider range of color options that are more appealing to consumers, while maintaining the cleaning performance of traditional laundry care products.
Implementation Method 1
using specific chemical structures that can alter their color in response to pH changes, temperature, or exposure to light
Implementation Method 2
using specific chemical structures that can alter their color in response to pH changes, temperature, or exposure to light
Implementation Method 3
using specific chemical structures that can alter their color in response to pH changes, temperature, or exposure to light
Data Source
AI summary
A laundry care composition comprises a laundry care ingredient or adjunct and at least one compound that is capable of changing from a first color state (i.e., the initial color state in the composition) to a second color state that is perceptibly different from the first color state. A method for treating textile articles comprises the steps of: (a) providing a laundry care composition as described above; (b) adding the laundry care composition to a liquid medium; and (c) placing the textile articles in the liquid medium.