Liquid detergent composition
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Solution Overview
Problem
Concentrated liquid detergent compositions containing internal olefin sulfonate salts tend to form crystals at low temperatures, compromising their stability and detergency.
Innovation Solution
A liquid detergent composition is formulated with a specific mass ratio of internal olefin sulfonate salt, fatty acid salt, and organic solvent, ensuring the internal olefin sulfonate salt has a sulfonic group at the C-2 position within a defined range, combined with a fatty acid salt and an organic solvent having hydroxyl groups, to maintain stability and detergency at low temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If concentrated liquid detergent composition containing internal olefin sulfonate salt is formulated, then detergency and penetrating ability are improved, but crystal deposition occurs at low temperatures
Solution Approach 1:
The patent changes the chemical structure parameter of the internal olefin sulfonate salt by controlling the double bond position (C-2, C-3, or C-4) and carbon chain length (C16 or C18). This parameter optimization allows the surfactant to maintain solubility at low temperatures while preserving detergency performance. The specific parameter ranges identified (e.g., C-2 position with 20-95% proportion) resolve the contradiction between effectiveness and stability.
Solution Approach 2:
The patent creates a composite detergent formulation by combining internal olefin sulfonate salt with other surfactants and additives in specific ratios. This composite approach balances the high detergency of internal olefin sulfonate with the low-temperature stability provided by the complementary components, preventing crystal deposition while maintaining cleaning performance.
2Reliability
If internal olefin sulfonate salt with high C-2 position content is used, then detergency is improved, but crystal deposition tendency increases
Solution Approach 1:
The patent optimizes the parameter of double bond position distribution by specifying that internal olefin sulfonate salts with C-2, C-3, or C-4 positions are used, with C-2 content controlled within 20-95%. This parameter control achieves the optimal balance between detergency (enhanced by C-2 position) and crystal deposition resistance (improved by distributing double bond positions across C-2, C-3, and C-4).
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 effectively suppresses crystal deposition at low temperatures while maintaining excellent detergency and stability, reducing environmental impact through concentrated formulation.
Implementation Method 1
an organic solvent having one or more hydroxyl groups
Implementation Method 2
an internal olefin sulfonate salt obtained by sulfonating an internal olefin having a double bond inside an olefin chain is an anionic surfactant which is excellent in solubilizing ability, penetrating ability and interfacial tension reducing ability
Data Source
AI summary
There is provided a liquid detergent composition comprising an internal olefin sulfonate salt at a high concentration and being excellent in stability at low temperatures without lowering the detergency. The liquid detergent composition comprises the following components (A) to (D), wherein a mass ratio of the component (A) to a total amount of the component (B) and the component (C), (A/(B+C)), is 0.6 or more and 5 or less; and a mass ratio of the component (B) to the component (C), (B/C), is 0.05 or more and 1.8 or less. (A): 10 to 40% by mass of an internal olefin sulfonate salt having 16 to 18 carbon atoms in which a content of an internal olefin sulfonate salt having a sulfonic group at the C-2 position is 5% by mass to 25% by mass; (B): 0.5 to 16% by mass of a fatty acid salt represented by the following formula (1): R1COOM (1) wherein R1 represents an alkyl group or alkenyl group having 10 or more and 14 or less carbon atoms; and M represents a hydrogen atom, an alkali metal, alkaline earth metal (½ atom), ammonium or an organic ammonium; (C): an organic solvent having one or more hydroxyl groups; and (D) water.