Liquid Detergent Composition for Low-Temperature Crystal Suppression
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Solution Overview
Problem
Concentrated liquid detergent compositions with internal olefin sulfonate salts tend to form crystals at low temperatures, compromising stability and detergency.
Innovation Solution
A liquid detergent composition comprising internal olefin sulfonate salts with specific carbon atom ranges and double bond positions, combined with fatty acid salts and organic solvents, maintains 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 used, then detergency and penetrating ability are improved, but crystal deposition occurs at low temperatures
Solution Approach 1:
The invention changes the chemical composition parameters by specifying internal olefin sulfonate salts with 16-18 carbon atoms and controlling the hydroxy form to olefin form ratio between 75/25 and 100/0. This parameter optimization allows the detergent to maintain liquid state at low temperatures while preserving excellent detergency and penetrating ability.
Solution Approach 2:
The invention creates a composite detergent system by combining internal olefin sulfonate salts with specific carbon chain lengths (C16-C18) and controlled isomeric compositions. This composite approach leverages the synergistic effects of different molecular structures to prevent crystal deposition while maintaining cleaning performance.
2Quantity of substance
If internal olefin sulfonate salt with high double bond content is used, then solubilizing ability is improved, but crystal formation increases at low temperatures
Solution Approach 1:
The invention applies local quality by specifying the position of double bonds within the carbon chain (internal position rather than terminal) and controlling the distribution of hydroxy and olefin forms. This localized structural control prevents crystal formation while maintaining solubilizing ability.
Solution Approach 2:
The invention optimizes the chemical parameters by limiting carbon atoms to 16-18 and controlling the double bond position and form distribution. These parameter changes reduce molecular packing efficiency that leads to crystallization while preserving solubilizing properties.
3Loss of energy
If concentrated detergent formulation is used, then transportation cost and environmental load are reduced, but stability at low temperatures deteriorates
Solution Approach 1:
The invention changes the molecular parameters of the surfactant components to C16-C18 internal olefin sulfonates with controlled isomeric ratios. This allows formulation of concentrated detergents that remain stable at low temperatures, achieving both transportation efficiency and storage stability.
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 reducing environmental impact.
Implementation Method 1
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
Implementation Method 2
a content of an internal olefin sulfonate salt having a sulfonic group at a C-2 position is 5% by mass or more and 25% by mass or less... effectively suppresses crystal deposition at low temperatures
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 (1/2 atom), ammonium or an organic ammonium; (C): an organic solvent having one or more hydroxyl groups; and (D) water.