Liquid Dishwashing Detergent Composition with Mid-Chain Alkanediol

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Solution Overview

Problem

Existing liquid dishwashing detergents often fail to provide both effective cleaning and enhanced foaming, leading to a perception of inadequate cleaning despite effective soil removal.

Innovation Solution

A liquid hand dishwashing detergent composition comprising 5-50% by weight of a surfactant system with at least 40% anionic surfactant, 1-10% alkyl polyglucoside nonionic surfactant, and 0.1-10% mid-chain 1,2-alkanediol, which improves foaming and cleaning performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional liquid dishwashing detergent formulations are used, then cleaning performance is achieved, but foaming action is insufficient and viscosity is low, creating a perception of inadequate cleaning

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidfoaming action
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent changes the chemical parameters of the detergent formulation by introducing mid-chain 1,2-alkanediols (C6-C14) and alkyl polyglucoside nonionic surfactants into the surfactant system. This parameter change transforms the detergent's properties to achieve both effective cleaning and enhanced foaming action, resolving the contradiction between cleaning effectiveness and foaming performance

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite surfactant system combining anionic surfactants, amphoteric co-surfactants, nonionic surfactants (alkyl polyglucoside), and mid-chain 1,2-alkanediols. This composite formulation synergistically improves both cleaning effectiveness and foaming action, addressing the technical contradiction

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If high viscosity and robust foaming action are provided, then user perception of cleaning adequacy is improved, but formulation complexity increases

Engineering Contradiction:
Improveuser perception of cleaningVSAvoidformulation complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent optimizes formulation parameters by specifying precise concentration ranges: mid-chain 1,2-alkanediol at 0.1-10%, alkyl polyglucoside nonionic surfactant at 1-10%, and anionic surfactant at least 40% of the surfactant system. These controlled parameter changes achieve desired foaming and viscosity while managing formulation complexity through systematic composition design

Inventive Principle:
Principle #35Parameter changes

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 achieves improved foaming and cleaning efficacy, addressing user perceptions of inadequate cleaning while maintaining effective soil removal.

Implementation Method 1

a surfactant system, wherein the surfactant system comprises anionic surfactant and amphoteric co-surfactant

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Implementation Method 2

the composition further comprises from 0.1-10% of a mid-chain 1,2-alkanediol, wherein the mid-chain alkyl chain of the 1,2-alkanediol comprises an average of from 6 to 14 carbon atoms

Methodology Applied
Scientific EffectViscosity enhancement:

Implementation Method 3

a robust foaming action

Methodology Applied
Scientific EffectFoaming: Foam

Data Source

PatentUS20250115829A1Liquid hand dishwashing detergent composition
Publication Date: 2025.04.10 PROCTER & GAMBLE CO
  • US20250115829A1 patent drawing

AI summary

A liquid hand dishwashing detergent composition includes from about 5% to about 50% by weight of the composition of a surfactant system. The surfactant system includes anionic surfactant and a co-surfactant selected from an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof. The surfactant system includes at least about 40% by weight of the surfactant system of the anionic surfactant, and from about 1.0% to about 10% by weight of the composition of alkyl polyglucoside nonionic surfactant; and the composition further includes from about 0.1% to about 10% of a mid-chain 1,2-alkanediol, and the mid-chain alkyl chain of the 1,2-alkanediol includes from 6 to 14 carbon atoms.