Liquid detergent composition for textile products

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Solution Overview

Problem

Existing liquid detergent compositions for textiles lack effectiveness in imparting texture and detergency, especially against stains, particularly at low temperatures, due to suboptimal ratios of internal olefin sulfonates and the absence of suitable organic solvents with hydroxy groups.

Innovation Solution

A liquid detergent composition containing internal olefin sulfonates with specific carbon atom ranges and sulfonate group positions, combined with an organic solvent having a hydroxy group, to enhance texture and detergency on textiles, even at low washing temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional internal olefin sulfonates are used in liquid detergent compositions, then the detergent composition can be formulated, but the effectiveness in imparting texture and detergency against stains is insufficient

Engineering Contradiction:
Improvedetergency effectivenessVSAvoidformulation simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by specifying precise compositional parameters: internal olefin sulfonate content (10-60% by mass), hydroxy form/olefin form ratio (0.3-5.0), and specific carbon atom ranges (16-22). These parameter optimizations resolve the contradiction by achieving superior detergency and texture effects while maintaining formulation feasibility through defined concentration ranges.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials by combining internal olefin sulfonates with specific physical-chemical properties (hydroxy form, olefin form, carbon chain length) to create a synergistic detergent composition. This composite approach enhances both texture impartment and stain removal effectiveness while keeping the formulation process manageable.

Inventive Principle:
Principle #40Composite materials

2Reliability

If the ratio of hydroxy form to olefin form of internal olefin sulfonate is not optimized, then the formulation is simpler, but the texture impartment and detergency performance deteriorate

Engineering Contradiction:
Improvetexture impartment effectivenessVSAvoidcomposition control complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent resolves this contradiction by establishing specific parameter ranges: hydroxy form/olefin form ratio between 0.3-5.0 and internal olefin sulfonate content between 10-60% by mass. These parameter definitions enable effective texture impartment and detergency while providing clear formulation guidelines that manage composition control complexity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If conventional surfactant compositions are used, then the detergent composition can be prepared, but the performance at low washing temperatures is insufficient

Engineering Contradiction:
Improvelow temperature performanceVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent achieves low temperature performance through parameter optimization: specifying internal olefin sulfonates with 16-22 carbon atoms and controlling the hydroxy form/olefin form ratio within 0.3-5.0. These parameter changes enhance cold water effectiveness while maintaining straightforward formulation procedures.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11124743B2Liquid detergent composition for textile products
Publication Date: 2021.09.21 KAO CORP

AI summary

The present invention relates to a liquid detergent composition for textile products containing the following component (A) in an amount of 10% by mass or more and 60% by mass or less), the following component (B), and water:component (A): an internal olefin sulfonate having 17 or more and 24 or less carbon atoms, wherein the mass ratio of an internal olefin sulfonate having 17 or more and 24 or less carbon atoms with the sulfonate group at position 2 or higher and position 4 or lower (IO-1S) to an internal olefin sulfonate having 17 or more and 24 or less carbon atoms with the sulfonate group at position 5 or higher (IO-2S), (IO-1S)/(IO-2S), is 0.75 or more and 5.5 or less; andcomponent (B): an organic solvent having a hydroxy group.