Cationic Nonionic Surfactant Cleaning Composition

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Solution Overview

Problem

Conventional cleaning compositions, particularly laundry detergents and shampoos, rely on anionic surfactants that are repelled by negatively charged hair and fabric surfaces, limiting their effectiveness in attracting and removing dirt and soil, and often require additional agents for antistatic and softening properties.

Innovation Solution

Formulating cleaning compositions with cationic surfactants like Polyquaternium-10 and nonionic surfactants, along with natural ingredients such as cocamine oxide and maltooligosyl glucoside, which provide antistatic, antiredeposition, and moisturizing properties, while avoiding alkaline compounds to maintain fabric softness and reduce the need for additional conditioning agents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If anionic surfactants are used in cleaning compositions, then cleaning performance is improved, but the surfactants are repelled by negatively charged hair and fabric surfaces, reducing effectiveness and requiring additional conditioning agents

Engineering Contradiction:

Improvecleaning performanceVSAvoideffectiveness on negatively charged surfaces

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent inverts the conventional approach by using cationic surfactants instead of anionic surfactants. Cationic surfactants have positively charged head groups that are electrostatically attracted to negatively charged hair and fabric surfaces, allowing them to effectively adsorb and remove dirt and soil from these surfaces without being repelled, thereby resolving the contradiction between cleaning performance and effectiveness on negatively charged surfaces

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the charge parameter of the surfactant from negative (anionic) to positive (cationic). This fundamental parameter change alters the electrostatic interaction with negatively charged surfaces from repulsion to attraction, enabling effective cleaning while simultaneously providing conditioning benefits, thus resolving the contradiction

Inventive Principle:

Principle #35Parameter changes

2Productivity

If conventional cleaning compositions are used, then dirt removal is achieved, but additional agents are required for antistatic and softening properties

Engineering Contradiction:

Improvedirt removal efficiencyVSAvoidnumber of additional agents required

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by using cationic surfactants that simultaneously perform multiple functions: they act as primary cleaning agents to remove dirt and soil, while also providing conditioning, antistatic, and softening properties. This eliminates the need for separate conditioning agents, reducing formulation complexity while maintaining high cleaning efficiency

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the functions of cleaning agents and conditioning agents into a single cationic surfactant system. By combining dirt removal capability with surface conditioning properties in one ingredient class, the formulation requires fewer components, simplifying the overall composition while achieving both cleaning and conditioning objectives

Inventive Principle:

Principle #5Merging (Combining)

3Power

If alkaline compounds are used in cleaning compositions, then cleaning power is enhanced, but fabric softness is compromised and additional conditioning is needed

Engineering Contradiction:

Improvecleaning powerVSAvoidfabric softness

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent changes the pH parameter of the cleaning composition by using cationic surfactants that function effectively at lower, more neutral pH levels compared to conventional anionic surfactant systems that require alkaline conditions. This pH parameter change maintains effective cleaning power while preserving fabric softness and eliminating the need for additional conditioning agents to counteract alkaline damage

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 compositions offer enhanced cleaning performance, antistatic properties, and fabric softening without stripping surfaces, providing a unique four-in-one hair care product that can be used as a shampoo, conditioner, detangler, and frizz eliminator, while being gentle on fabrics and suitable for 'dry clean only' items.

Implementation Method 1

cationic surfactants like Polyquaternium-10... which provide antistatic, antiredeposition, and moisturizing properties

Methodology Applied

Scientific EffectElectrostatic attraction: Electrostatics

Implementation Method 2

The surfactants physically incorporate (dissolve) the dirt, oil, or stains in their micelles and then transport them away from the textile surfaces

Methodology Applied

Scientific EffectSurfactant micelle formation: Surfactant

Implementation Method 3

at least one nonionic surfactant... for cleaning textiles and clothes

Methodology Applied

Scientific EffectSurface tension reduction: Surface Tension

Data Source

PatentUS10611986B1Cleaning composition comprising a cationic/nonionic mixture

Publication Date: 2020.04.07 EARTHCARE LABS

AI summary

Disclosed herein are cleaning compositions including water, at least one cationic surfactant, and at least one nonionic surfactant.