Foaming Spray Dish Cleaner for Low-Waste Manual Washing

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Solution Overview

Problem

Traditional manual dishwashing methods are inefficient and time-consuming, especially when cleaning small loads or dealing with tough food soils, and existing cleaning products often require excessive detergent, prolonged mixing times, and may not effectively minimize waste or inhalation risks.

Innovation Solution

A hand dishwashing cleaning product with a spray dispenser containing a foaming composition comprising a surfactant system of anionic surfactant and co-surfactant in a specific ratio, combined with a glycol ether solvent, which generates strong, long-lasting suds for effective cleaning with reduced scrubbing effort and minimal overspray.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If detergent is delivered to a sponge for cleaning small loads, then cleaning can be performed, but excessive detergent is dosed requiring more rinsing

Engineering Contradiction:
Improveease of cleaningVSAvoiddetergent waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The spray dispenser automatically controls detergent delivery to the dishware surface, eliminating the need for manual detergent application and preventing over-dosing. The system self-regulates the amount of cleaning composition applied based on the surface area being treated.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces the manual mechanical action of applying detergent to a sponge with an automated spray dispensing system that directly applies the cleaning composition to the dishware, providing precise control over detergent delivery.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If detergent is mixed with water in a sponge, then cleaning solution is formed, but time is required for mixing slowing down the process

Engineering Contradiction:
Improveease of cleaningVSAvoidmixing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The cleaning composition is pre-formulated as a ready-to-use spray solution, eliminating the need for on-site mixing of detergent and water. The product is prepared in advance during manufacturing with optimal surfactant concentrations already achieved.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention replaces the manual mixing process with a pre-prepared spray system that delivers the cleaning composition directly from the container, eliminating the time-consuming mixing step entirely.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If spray composition spreads to surrounding atmosphere, then application is achieved, but product waste and inhalation risks increase

Engineering Contradiction:
Improvespray applicationVSAvoidinhalation risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The invention modifies the spray parameters by formulating the composition with specific surfactants and co-surfactants that control surface tension and droplet formation, creating a spray pattern that deposits on surfaces rather than aerosolizing into the atmosphere.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention converts the potential harm of spray dispersion into a benefit by using the surfactant system to create controlled wetting that directs the spray onto the dishware surface, transforming what could be waste and inhalation risk into effective cleaning coverage.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Productivity

If conventional surfactant systems are used, then cleaning is achieved, but excessive scrubbing effort is required

Engineering Contradiction:
Improvecleaning speedVSAvoidscrubbing effort
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The invention uses a composite surfactant system combining anionic surfactants with zwitterionic co-surfactants (betaine or sulphobetaine), creating a synergistic effect that enhances cleaning performance and reduces the need for mechanical scrubbing effort while maintaining fast cleaning action.

Inventive Principle:
Principle #40Composite materials

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 product enables faster and easier cleaning of various soils, including tough food residues, with reduced effort and minimal waste, while ensuring safety by minimizing inhalation risks and efficient rinsing.

Implementation Method 1

A sprayable composition for use in hand dishwashing

Methodology Applied
Scientific EffectSpray: Spray

Implementation Method 2

The composition is a foaming composition and it is suitable for spraying

Methodology Applied
Scientific EffectFoam: Foam

Implementation Method 3

a glycol ether solvent selected from the group consisting of glycol ethers of Formula I

Methodology Applied
Scientific EffectSolvation: Solvation

Data Source

PatentEP3118299B1Cleaning product
Publication Date: 2018.10.17 PROCTER & GAMBLE CO
  • EP3118299B1 patent drawing
  • EP3118299B1 patent drawing
  • EP3118299B1 patent drawing

AI summary

A cleaning product comprising a spray dispenser and a cleaning composition suitable for spraying and foaming, the composition housed in the spray dispenser wherein the composition comprises: i)from about 5 to about 15% by weight of the composition of a surfactant system; and ii) a glycol ether solvent selected from the group consisting of glycol ethers of Formula I: R1O(R2O)nR3, Formula II: R4O(R5O)nR6 and mixtures thereof wherein R1 is a linear or branched C4, C5 or C6 alkyl or a substituted or unsubstituted phenyl, R2 is ethyl or isopropyl, R3 is hydrogen or methyl and n is 1, 2 or 3 R4 is n-propyl or isopropyl, R5 is isopropyl, R6 is hydrogen or methyl and n is 1, 2 or 3 and wherein the surfactant system and the glycol ether solvent are in a weight ratio of from about 5:1 1 to about 1:1.