Anionic Surfactant Skin Cleanser for Foam and Keratotic Plug Detergency
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Solution Overview
Problem
Existing skin cleansers face challenges in balancing foaming property and detergency against keratotic plugs, and components prone to crystallize and clog foam discharge containers over time.
Innovation Solution
A skin cleanser composition comprising specific anionic surfactants (A1, A2, A3) and keratotic plug-removing agents (B) like 2-amino-2-hydroxymethyl-1,3-propanediol, combined with polyols (C) to enhance detergency and foaming properties while preventing crystallization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a large amount of anionic surfactant is used in combination with keratotic plugs-removing components, then foaming property is improved, but detergency against keratotic plugs deteriorates
Solution Approach 1:
The patent changes the chemical structure parameters of the anionic surfactant by specifying particular R1, R2, and R3 groups in the general formula (1). This structural parameter change enables the surfactant to achieve both good foaming properties and effective detergency against keratotic plugs simultaneously, resolving the contradiction between foaming property and detergency effectiveness.
Solution Approach 2:
The patent creates a composite surfactant system by combining specific anionic surfactants with keratolic plugs-removing components (such as 2-amino-2-hydroxymethyl-1,3-propanediol). This composite formulation achieves synergistic effects where the anionic surfactant provides foaming and the amino alcohol provides keratotic plugs removal, while they complement each other's functions.
2Reliability
If keratotic plugs-removing components are used in foam discharge container, then detergency against pores is improved, but nozzle clogging occurs due to crystallization over time
Solution Approach 1:
The patent introduces solubilizing agents and co-surfactants as intermediary substances that mediate between the keratotic plugs-removing components and the aqueous environment. These intermediaries prevent crystallization by solubilizing the amino alcohol components, thereby maintaining both detergency effectiveness and compositional stability during long-term storage in foam discharge containers.
Solution Approach 2:
The patent modifies the physical-chemical parameters of the formulation by controlling pH, adding solubilizing agents, and adjusting the molecular structure of surfactants. These parameter changes reduce the tendency of keratotic plugs-removing components to crystallize, ensuring long-term stability in foam discharge containers while maintaining pore-cleaning effectiveness.
3Reliability
If specific anionic surfactant structure is used, then detergency against keratotic plugs is improved, but foaming property may be compromised
Solution Approach 1:
The patent optimizes the molecular structure parameters of the anionic surfactant by defining specific R1, R2, and R3 groups in the general formula (1). This precise structural parameter adjustment ensures that the surfactant maintains both strong detergency against keratotic plugs and adequate foaming properties, resolving the contradiction between these two performance aspects.
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 achieves excellent detergency against keratotic plugs with stable foaming properties and prevents nozzle clogging in foam discharge containers.
Implementation Method 1
component (A) is one or more anionic surfactant(s) selected from the following components (A1), (A2), and (A3)... excellent foaming property
Implementation Method 2
by further comprising polyol(s) with a specific amount in the aforementioned skin cleanser composition, it is possible to not only achieve excellent detergency against pores, excellent foaming property, as well as foam quality, but also inhibit the formation of crystallization of components with keratotic plugs-removing effect
Data Source
AI summary
The present invention relates to a skin cleanser composition containing the following components (A)-(B): component (A) is one or more among an N-acyl amino acid represented by formula (1) or a salt thereof (A1), an N-acyl taurine represented by formula (2) or a salt thereof (A2), and a fatty acid having 8-20 carbon atoms or a salt thereof (A3); and component (B) is one or more among TRIS, AMP, AMPD, and MEA. (In the formulae, R1 is a C5-24 linear or branched alkyl or alkenyl group, R2 is hydrogen or a C1-4 alkyl group, R3 and R4 are each hydrogen, a C1-4 alkyl group, a C1-4 hydroxyalkyl group or -(CH 2)m1-COOM2, m1 and n1 are numbers from 0-20, M1 and M2 are each hydrogen, an alkali metal, an alkaline earth metal, a basic amino acid, ammonium, or an alkanolamine; R1 is a C8-20 linear or branched alkyl or alkenyl group, R2 is hydrogen or C1-3 alkyl group, and M is hydrogen, an alkali metal, an alkaline earth metal, an basic amino acid, ammonium, or an alkanolamine.)