Methyl Ester Ethoxylate Surfactant Composition for Laundry Foaming
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Solution Overview
Problem
Current laundry detergent compositions do not effectively manage alkyl chain distribution for improved foaming characteristics and fragrance enhancement, particularly in liquid formulations.
Innovation Solution
A laundry detergent composition comprising at least 4% weight methyl ester ethoxylate surfactant, with specific alkyl chain distribution and ethoxylate content, including 20% or more of C16 MEE, 35% or more of C18:1 MEE, and less than 10% of C18:0 MEE, which enhances foaming and provides fragrance benefits when stored in an openable container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional laundry detergent compositions are used, then basic cleaning function is provided, but foaming characteristics are not optimized and fragrance enhancement is insufficient
Solution Approach 1:
The patent applies parameter changes by specifying precise compositional parameters of methyl ester ethoxylate surfactants, including alkyl chain distribution (C16, C18:1, C18:0 content ratios) and ethoxylate chain length (n=5-25). By controlling these parameters, the invention optimizes foaming characteristics and fragrance enhancement properties of the laundry detergent composition.
Solution Approach 2:
The patent uses composite materials by combining methyl ester ethoxylate surfactants with specific alkyl chain distribution characteristics with other detergent ingredients. The composite surfactant system achieves synergistic effects that improve foaming characteristics and provide fragrance enhancement benefits during storage and use.
2Reliability
If MEE is formulated with optimized alkyl chain distribution, then foaming characteristics are improved, but formulation complexity increases
Solution Approach 1:
The patent applies local quality by creating specific local compositions within the surfactant molecule - particular alkyl chain lengths (C16, C18:1, C18:0) are present in specific proportions to provide localized functional properties. This local compositional control optimizes foaming characteristics while maintaining overall formulation manageability.
3Object-generated harmful factors
If MEE is stored in an openable container, then fragrance enhancement benefits are provided, but product stability may be compromised
Solution Approach 1:
The patent applies this principle by utilizing the volatile nature of certain surfactant components for fragrance enhancement during the storage and use period, accepting that these components may degrade or evaporate over time. The openable container format allows controlled exposure to maximize fragrance benefits while the formulation maintains adequate stability for its intended shelf life.
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 improves foaming characteristics and provides fragrance enhancement, making it suitable for various laundry applications, including regular laundry liquids, hand washing detergents, and auto-dosing systems, while maintaining stability and effectiveness.
Implementation Method 1
Methyl Ester Ethoxylate surfactants are of the form: R1COO(CH2CH2O)nH where the surfactant structure enables surface tension reduction and foaming characteristics
Implementation Method 2
The surfactant molecules adsorb at interfaces, with the hydrophobic R1COO- group orienting toward air and hydrophilic ethoxylate chain toward water
Data Source
AI summary
A laundry detergent composition comprising at least 4% wt. methyl ester ethoxylate surfactant wherein the methyl ester ethoxylate comprises at least 20% by wt. total MEE, C16 MEE, at least 35% wt. MEE, C18:1 MEE and less than 10% wt. total MEE, C18:0 MEE, and domestic method of treating a textile, the method comprising the step of treating a textile with an aqueous solution of 0.5 to 20 g/L of the detergent composition, and optionally drying the textile.