Liquid detergent composition
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Solution Overview
Problem
Existing liquid detergent compositions with internal olefin sulfonates fail to achieve satisfactory washing and finishing performance when used with water having high hardness, particularly in removing sebum stains and reducing wrinkles in textile products.
Innovation Solution
A liquid detergent composition comprising an anionic surfactant with internal olefin sulfonate, an amine-based alkali agent, and a carbonate-based alkali agent, with specific mass ratios and pH levels, which forms micelles and vesicles to enhance washing and finishing performance even in hard water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid detergent compositions with internal olefin sulfonate are used, then washing performance and finishing performance are improved, but performance deteriorates when used with water having high hardness
Solution Approach 1:
The patent combines internal olefin sulfonate with specific auxiliary agents (alkyl polyglycoside, alkyl ether carboxylate, and amino acid-based surfactant) to create a composite surfactant system. This composite formulation maintains effective performance in hard water by compensating for the reduced effectiveness of individual components through synergistic interactions among the different surfactant types.
Solution Approach 2:
The patent specifies precise compositional parameters including the content of internal olefin sulfonate (5-50 mass%), auxiliary agent ratios (0.1-5 mass% and 0.01-1 mass%), and pH range (6.0-9.0) to optimize performance. By controlling these parameters within specific ranges, the formulation achieves both washing performance and adaptability to hard water conditions.
2Strength
If internal olefin sulfonate is used as surfactant, then softening performance and anti-wrinkle performance are improved, but washing performance on sebum stains and finishing performance are not achieved in hard water
Solution Approach 1:
The patent creates a composite surfactant system combining internal olefin sulfonate (providing softening and anti-wrinkle effects) with alkyl polyglycoside, alkyl ether carboxylate, and amino acid-based surfactants. This composite approach ensures that the softening and anti-wrinkle performance is maintained while the additional surfactants compensate for reduced washing performance in hard water through synergistic effects.
Solution Approach 2:
The patent assigns different functional roles to different surfactant components: internal olefin sulfonate primarily provides softening and anti-wrinkle performance, while the auxiliary surfactants (alkyl polyglycoside, alkyl ether carboxylate, amino acid-based surfactant) contribute to washing performance on sebum stains. This functional differentiation allows each component to excel at its specific task while working together in hard water conditions.
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 provides excellent washing performance on sebum stains and anti-wrinkle performance for textile products, maintaining stability at high and low temperatures, even in water with high hardness.
Implementation Method 1
the composition forms micelles and vesicles to enhance washing and finishing performance even in hard water
Data Source
AI summary
Provided are a liquid detergent composition and a method for washing textile products using the liquid detergent composition that provides excellent washing performance to sebum stains and anti-wrinkle performance for textile products even when water having high hardness is used. The liquid detergent composition contains an anionic surfactant containing an internal olefin sulfonate with 16 or more and 24 or less carbons; an amine-based alkali agent; a carbonate-based alkali agent; and water. The mass content of the internal olefin sulfonate in the anionic surfactant is 70% or more and 100% or less. The liquid detergent composition has a pH of 8.5 or more and 11.0 or less at 20° C.