Liquid Cleansing Composition for Octadecanoic Acid Deposition
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Solution Overview
Problem
Existing liquid cleansing compositions face challenges in effectively depositing benefit agents, such as octadecanoic acids, onto surfaces due to the rapid removal of the composition during washing, limiting the duration of deposition.
Innovation Solution
A liquid cleansing composition comprising specific amounts of octadecanoic acid, typically 10-hydroxystearic acid or 12-hydroxystearic acid, combined with organic acids having a pKa range of 2.5 to 4.9, such as benzoic acid, enhances deposition by optimizing the composition's formulation to improve retention on surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a liquid cleansing composition is used to deliver benefit agents, then the composition can be applied to surfaces, but the composition is rapidly removed during washing, limiting the deposition time of benefit agents
Solution Approach 1:
The patent changes the chemical parameters of the cleansing composition by incorporating organic acids with specific pKa values (2.5-4.9) and controlling the ratio of benefit agents to surfactants. This chemical parameter modification enables the composition to maintain benefit agent deposition during the washing process, resolving the contradiction between limited deposition time and necessary washing duration.
Solution Approach 2:
The patent creates a composite cleansing system combining benefit agents (e.g., octadecanoic acid), organic acids with specific pKa ranges, and surfactants in optimized ratios. This composite formulation allows the benefit agents to be effectively deposited and retained on surfaces despite the rinsing action, addressing the time loss issue during washing.
2Reliability
If benefit agents are included in cleansing compositions to deliver moisturizing or other benefits, then the composition provides functional benefits, but the deposition of benefit agents on surfaces is limited due to rapid removal
Solution Approach 1:
The patent modifies the chemical composition parameters by specifying organic acids with pKa values between 2.5-4.9 and controlling the ratio of benefit agents to surfactants within specific ranges. These parameter changes enhance the deposition reliability and efficiency of benefit agents on surfaces during the cleansing process.
Solution Approach 2:
The organic acids with specific pKa values act as intermediaries that facilitate the deposition and retention of benefit agents on surfaces. These intermediary substances enable effective transfer and adhesion of benefit agents while maintaining compatibility with the cleansing function, thereby improving both reliability and productivity.
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 combination of octadecanoic acid with organic acids of the specified pKa range significantly improves the deposition of these agents on surfaces, even when the composition is partially removed within minutes, as demonstrated by the examples.
Implementation Method 1
a liquid cleansing composition that comprises select amounts of octadecanoic acid in combination with select amounts of organic acids with certain pKa range, wherein these organic acids with certain pKa range are organic acids other than the octadecanoic acid, provided improved deposition of the octadecanoic acid
Data Source
AI summary
The present invention relates to a liquid cleansing composition. Particularly, the present invention relates to a liquid cleansing composition that provides improved deposition of an active, an octadecanoic acid, when applied on to a surface. The composition comprises an octadecanoic acid and an organic acid with pKa from 2.5 to 4.9 wherein the organic acid is other than the octadecanoic acid.