Stabilized Dyed Products Using Hindered Nitroxyl Antioxidants
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Solution Overview
Problem
Existing body care, household, textile, and fabric products face challenges in maintaining stability against light, heat, and oxygen degradation, leading to color changes and chemical instability.
Innovation Solution
Incorporation of hindered nitroxyl, hydroxylamine, and hydroxylamine salt compounds, along with additional additives like UV light absorbers and antioxidants, to create stabilized compositions that protect against environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If body care products, household products, textiles and fabrics are exposed to light, heat and oxygen, then color changes and chemical degradation occur, but stability and color retention deteriorate
Solution Approach 1:
Hindered nitroxyl compounds, hindered hydroxylamine compounds, and hindered hydroxylamine salt compounds are introduced as intermediary substances that mediate between the harmful environmental factors (light, heat, oxygen) and the protected materials (body care products, household products, textiles, fabrics). These stabilizing compounds act as sacrificial intermediaries that preferentially react with reactive oxygen species and free radicals generated by light and heat exposure, thereby protecting the target materials from degradation while maintaining their stability.
Solution Approach 2:
The invention changes the chemical composition parameters of the products by incorporating specific stabilizing compounds (hindered nitroxyl, hydroxylamine, and hydroxylamine salt compounds with defined molecular structures and concentrations). These parameter changes in composition enable the products to resist light, heat, and oxygen degradation, transforming the materials from vulnerable to stable states against environmental stressors.
2Reliability
If dyes are used in compositions, then color is provided, but color change and chemical instability occur over time
Solution Approach 1:
Hindered nitroxyl compounds, hindered hydroxylamine compounds, and hindered hydroxylamine salt compounds serve as intermediary protective agents between the dyes and harmful environmental factors. These stabilizing compounds preferentially react with free radicals and reactive oxygen species that would otherwise attack and degrade the dye molecules, thereby maintaining color integrity and preventing color changes over time while ensuring reliable color retention.
Solution Approach 2:
The stabilizing compounds (hindered nitroxyl, hydroxylamine, and hydroxylamine salt compounds) are incorporated into the compositions in advance before exposure to light, heat, and oxygen. This preliminary incorporation ensures that the protective agents are already present and positioned to immediately neutralize harmful radicals and prevent dye degradation when environmental stressors are applied, rather than waiting for degradation to occur.
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 compositions provide enhanced stability and color retention in body care products, household items, and textiles, effectively preventing degradation and maintaining performance over time.
Implementation Method 1
The present invention relates to the use of selected hindered nitroxyl, hydroxylamine and hydroxylamine salt compounds for the protection of body care products, household products, textiles and fabrics against the deleterious effects of light, heat and oxygen.
Implementation Method 2
The present compositions may comprise further traditional additives, for example ultraviolet (UV) light absorbers and antioxidants.
Data Source
AI summary
Disclosed are stabilized body care products, household products, textiles and fabrics which comprise certain hindered nitroxyl, hydroxylamine and hydroxylamine salt compounds. Dyed products and articles are effectively stabilized against color degradation. The products are for example skin-care products, hair-care products, dentifrices, cosmetics, laundry detergents and fabric softeners, non-detergent based fabric care products, household cleaners and textile-care products.