Choline Salt Cleaning Composition for Tough Food Soil Removal

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Solution Overview

Problem

Conventional dishwashing methods struggle with efficiently removing tough, burnt-on food soils without being harsh on hands or surfaces, often requiring multiple products and prolonged soaking or heavy scouring.

Innovation Solution

A cleaning composition containing choline salts, such as choline chloride, urea, and surfactants, which forms a deep eutectic solvent that effectively solvates tenacious food soils, reducing the need for abrasive cleaners and multiple products.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional cleaners and heavy scouring are used to remove tough food soils, then cleaning effectiveness is improved, but harm to hands and surfaces increases

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidharshness to hands and surfaces

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters of the cleaning composition by using choline salts with specific hydrogen bond donor capabilities and controlled pH levels (pH 2-10), replacing conventional harsh alkaline cleaners. This allows effective soil removal through solvation mechanisms rather than aggressive chemical action, reducing harm to hands and surfaces while maintaining cleaning effectiveness

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces mechanical scouring with chemical solvation by deep eutectic solvents formed from choline salts and hydrogen bond donors. The solvents penetrate and dissolve tenacious food soils through hydrogen bonding and solvation effects, eliminating the need for abrasive mechanical action that damages surfaces and hands

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple products and prolonged soaking are used to remove encrusted soils, then cleaning effectiveness is improved, but loss of time increases

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidsoaking time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The cleaning composition is designed to perform preliminary solvation action immediately upon contact with food soils. The deep eutectic solvents rapidly penetrate and loosen encrusted soils without requiring prolonged soaking periods, enabling effective cleaning in minutes rather than hours

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses composite cleaning formulations combining choline salts with specific hydrogen bond donors (urea, carboxylic acids, their salts) to create deep eutectic solvents with enhanced solvation power. This composite approach allows rapid breakdown of tenacious food soils including starches and proteins, reducing required treatment time while improving effectiveness

Inventive Principle:

Principle #40Composite materials

3Reliability

If abrasive cleaners are used to remove burnt-on soils, then cleaning effectiveness is improved, but object-generated harmful factors increase

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidabrasion damage

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces mechanical abrasion with chemical solvation mechanisms. Deep eutectic solvents formed from choline salts and hydrogen bond donors dissolve burnt-on soils through hydrogen bonding and solvation, eliminating the need for abrasive particles that cause surface damage and wear

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the cleaning mechanism from mechanical abrasion to chemical dissolution by controlling pH levels (pH 2-10) and using specific choline salt compositions. This allows effective removal of burnt-on soils through controlled chemical reactions and solvation without generating harmful abrasive effects

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 provides improved cleaning efficiency, reducing scrubbing needs and water usage, while being gentler on hands and surfaces, and is effective in removing difficult food soils like starch and egg albumin with reduced soaking times.

Implementation Method 1

The liquid salt has hydrogen bond donor capability and is effective on tenacious food soils

Methodology Applied

Scientific EffectHydrogen bonding:

Implementation Method 2

forms a deep eutectic solvent that effectively solvates tenacious food soils

Methodology Applied

Scientific EffectSolvation: Solvation

Data Source

PatentEP2723845B1Choline salt cleaning compositions

Publication Date: 2019.04.03 COLGATE PALMOLIVE CO

AI summary

A cleaning composition comprising a choline salt and a surfactant or solvent. Also, a method of cleaning using the cleaning composition.