Detergent Composition Cleaning Hard Surfaces

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Solution Overview

Problem

Formulating a hard surface cleaning composition that balances good cleaning performance with surface shine while maintaining stability over time is challenging, as improvements in one aspect often compromise another.

Innovation Solution

A detergent composition comprising 0.1-10% amine oxide, 0.01-15% nonionic surfactant, and 0.01-15% perfume formulation, with specific weight ratios and pH between 9-14, which includes a mixture of amine oxide, nonionic surfactant, and perfume formulation to provide effective cleaning and shine without stability issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cleaning properties of a composition are improved, then the cleaning performance is enhanced, but the stability of the composition is reduced

Engineering Contradiction:
Improvecleaning performanceVSAvoidcomposition stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies parameter changes by optimizing the pH range (9-14) and specific ingredient concentrations (amine oxide 0.1-10%, nonionic surfactant 0.01-15%) to achieve both improved cleaning performance and maintained stability. The weight ratio of amine oxide to nonionic surfactant (3:1 to 10:1) is carefully controlled to balance cleaning efficacy with composition stability over time.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the cleaning properties of a composition are improved, then the cleaning performance is enhanced, but the shine of the cleaned surface is reduced

Engineering Contradiction:
Improvecleaning performanceVSAvoidsurface shine
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent uses a composite material approach by combining amine oxide with nonionic surfactant in specific ratios (3:1 to 10:1). This composite formulation achieves synergistic effects where the amine oxide provides cleaning power while the nonionic surfactant contributes to shine enhancement, resolving the contradiction between cleaning performance and surface appearance.

Inventive Principle:
Principle #40Composite materials

3Reliability

If a change in the formula leads to a positive effect in one aspect, then that aspect is improved, but a negative effect is induced in another aspect

Engineering Contradiction:
Improvecleaning performanceVSAvoidcomposition stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies partial action by using controlled concentrations of active ingredients (amine oxide 0.1-10%, nonionic surfactant 0.01-15%) rather than maximum amounts. This partial formulation approach achieves sufficient cleaning performance while avoiding excessive concentrations that would compromise composition stability, demonstrating the principle of using slightly less than maximum potential dosage.

Inventive Principle:
Principle #16Partial or excessive action

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 a good overall cleaning and shine experience for hard surfaces while maintaining stability, as demonstrated by examples showing effective cleaning performance and surface shine retention even after storage.

Implementation Method 1

The composition comprises: (a) from 0.1% to 10% by weight of an amine oxide... (b) from 0.01% to 15% by weight of a nonionic surfactant

Methodology Applied
Scientific EffectSurfactant: Surfactant

Data Source

PatentEP3116982B2Detergent composition
Publication Date: 2022.03.02 PROCTER & GAMBLE CO

AI summary

A composition comprising an amine oxide, a nonionic surfactant, and a perfume formulation, wherein the ratio of amine oxide and nonioinic surfactants is from 1:1 to 25:1, and whereinthe perfume formulation comprises at most 50 wt% of the perfume raw materials comprising an ester function, an alpha,beta unsaturated ketone or and or aldehyde.