Sterically Hindered Amine Salts for Stabilizing Dyed Textiles
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Solution Overview
Problem
Current methods for stabilizing body care products, household products, textiles, and fabrics against light-induced fading and chemical degradation are inadequate, 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 these products to provide effective stabilization against light-induced fading and chemical degradation, along with additional additives like UV light absorbers and antioxidants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stabilizing methods are used, then some protection is provided, but light-induced fading and color changes 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 with defined substituents G1-G6, R1-R6, and counterions). This structural parameter change enhances the stabilizing activity and light fastness protection compared to conventional stabilizers.
Solution Approach 2:
The invention uses composite materials by combining sterically hindered amine salt compounds with UV light absorbers and antioxidants in stabilized compositions. This multi-component approach creates synergistic effects that provide superior protection against light-induced fading and chemical degradation compared to single stabilizers.
2Reliability
If sterically hindered amine salt compounds are added, then light fastness and chemical stability improve, but product formulation complexity increases
Solution Approach 1:
The sterically hindered amine salt compounds exhibit multi-functionality by providing simultaneous protection against light-induced fading, chemical degradation, and color changes. This single compound class addresses multiple degradation pathways, reducing the need for multiple separate additives and simplifying overall formulation complexity.
3Reliability
If multiple stabilizing additives are incorporated, then comprehensive protection is achieved, but manufacturing cost increases
Solution Approach 1:
The patent optimizes the concentration parameters of sterically hindered amine salt compounds and other additives to achieve effective stabilization at minimal levels. By carefully controlling the amount of each component, the formulation achieves comprehensive protection while minimizing the total quantity of additives and associated costs.
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 improve the light fastness and chemical stability of body care products, household products, and textiles, maintaining color integrity and product performance under exposure to light and environmental stress.
Implementation Method 1
The stabilized compositions for example comprise dyes that are stabilized against color change
Implementation Method 2
protection of body care products, household products, textiles and fabrics against the deleterious effects of light, heat and oxygen
Implementation Method 3
stabilized against color change... protection against light-induced fading
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.