Sterically Hindered Amine Salts for Light-Stable Dyed Textiles
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Solution Overview
Problem
Current methods fail to effectively protect body care products, household products, textiles, and fabrics from light-induced fading and chemical degradation, leading to color changes and instability.
Innovation Solution
The use of sterically hindered amine salt compounds, specifically compounds of formula (I), which are incorporated into body care products, household products, textiles, and fabrics to provide stabilization against light, heat, and oxygen, thereby preventing color change and chemical degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stabilization methods are used, then some protection is provided, but light-induced fading and color change still occur
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of amine compounds to create sterically hindered amine salts with specific molecular configurations (formula I). These structural parameter changes enhance the compounds' ability to scavenge free radicals and protect against light-induced degradation, resolving the contradiction between conventional stabilization effectiveness and light-induced fading resistance
Solution Approach 2:
The invention uses composite materials by combining sterically hindered amine salt compounds with body care products, household products, textiles, or fabrics. This composite approach creates a synergistic effect where the amine salts provide enhanced stabilization properties that overcome the limitations of conventional single-component stabilization methods
2Device complexity
If no stabilizer is added, then product composition remains simple, but color integrity and chemical stability deteriorate under light and heat exposure
Solution Approach 1:
The sterically hindered amine salt compounds act as intermediary substances between the harmful environmental factors (light, heat, oxygen) and the protected materials (body care products, textiles, fabrics). These intermediary compounds absorb and neutralize free radicals generated by light and heat exposure, preventing direct damage to the product composition while maintaining color integrity and chemical stability
3Object-affected harmful factors
If stabilizing compounds are incorporated, then protection against light and heat is improved, but product formulation complexity increases
Solution Approach 1:
The patent applies the taking out principle by extracting and isolating the essential stabilizing function into specific sterically hindered amine salt compounds with defined molecular structures (formula I). This extraction allows for targeted incorporation of highly effective stabilizers in controlled amounts, providing strong protection against light and heat while minimizing the complexity increase that would result from using larger quantities of less effective stabilizers
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 sterically hindered amine salt compounds significantly enhance the stability of these products and textiles, maintaining color integrity and chemical stability even under exposure to light and heat, as demonstrated by reduced color change and improved durability.
Implementation Method 1
certain sterically hindered amine salt compounds provide outstanding protection against light-induced fading of home personal care products
Implementation Method 2
protection of body care products, household products, textiles and fabrics against the deleterious effects of light, heat and oxygen
Data Source
AI summary
Disclosed are stabilized body care products, household products, textiles and fabrics which comprise certain sterically hindered amine 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.