Foaming Cleaning Composition with Alkyl Ethoxylated Sulfate

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Solution Overview

Problem

Manual dishwashing under running water often requires excessive detergent, leading to increased rinsing needs and slower cleaning processes, especially when dealing with lightly soiled items or tough food soils, and existing products may spread excessively, causing waste and inhalation risks.

Innovation Solution

A spray dispenser containing a foaming cleaning composition with a surfactant system of alkyl ethoxylated sulfate and a co-surfactant, along with a glycol ether solvent, which provides strong yet easily rinsable suds, effective for various soil types and minimizes overspray, with a pH and reserve alkalinity optimized for tough soil removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If detergent is delivered to a sponge for cleaning small number of items, then cleaning can be performed, but excessive detergent is dosed requiring more rinsing and time to mix detergent with water

Engineering Contradiction:
Improveease of cleaning operationVSAvoidtime required for mixing detergent with water
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The cleaning composition is pre-formulated in the spray dispenser with the exact amount of detergent needed, eliminating the need for users to manually dose and mix detergent with water during the cleaning process. The composition is ready-to-use upon spraying.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention extracts the detergent dosing step from the cleaning process by providing a pre-dosed spray composition that delivers the precise amount of cleaning agent needed, removing the problematic manual dosing and mixing operations.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If sprayable cleaning composition is used, then cleaning is performed quickly, but composition spreads to surrounding atmosphere causing waste and inhalation risks

Engineering Contradiction:
Improvecleaning speedVSAvoidproduct waste from overspray
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The invention changes the physical parameters of the cleaning composition by formulating it to foam upon contact with water or air. This foam structure contains the cleaning agents, preventing them from spreading as aerosol droplets to the surrounding atmosphere while maintaining rapid cleaning action.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The cleaning composition undergoes a phase transition from liquid spray to foam structure. This phase change occurs when the spray contacts water or air, transforming the liquid into a foamed state that localizes the cleaning agents and prevents atmospheric dispersion.

Inventive Principle:
Principle #36Phase transitions

3Reliability

If different products are designed for different types of soils, then cleaning effectiveness is improved, but user must have large number of products which is not practical

Engineering Contradiction:
Improvecleaning effectiveness for different soilsVSAvoidnumber of different cleaning products
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cleaning composition is formulated with a universal surfactant system and solvent combination that can effectively clean multiple types of soils including lightly soiled items and tough food soils. This single multi-functional product replaces the need for multiple specialized cleaning products.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention uses a composite cleaning system combining specific surfactants (alkyl ethoxylated sulfate and co-surfactant) with glycol ether solvents to create a formulation that addresses multiple soil types and cleaning scenarios within a single product.

Inventive Principle:
Principle #40Composite materials

4Ease of operation

If manual dishwashing is performed under running water with sponge, then cleaning can be done, but excessive detergent dosing requires more rinsing

Engineering Contradiction:
Improveease of cleaning operationVSAvoidtime required for rinsing
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The spray composition is formulated to deliver the precise partial amount of detergent needed for effective cleaning without excess. This controlled dosing eliminates the need for additional rinsing cycles to remove surplus detergent, reducing total rinsing time.

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 solution enables faster, reduced-effort cleaning of dishware, including tough soils, with minimal product waste and inhalation risk, by providing strong, long-lasting suds that are easy to rinse and effective on a range of soils without excessive spreading.

Implementation Method 1

a surfactant system comprising an alkyl ethoxylated sulfate anionic surfactant and a co-surfactant

Methodology Applied
Scientific EffectSurfactant: Surfactant

Implementation Method 2

a glycol ether solvent selected from the group consisting of glycol ethers of Formula I: R1O(R2O)nR3, Formula II: R4O(R5O)nR6

Methodology Applied
Scientific EffectSolvation: Solvation

Data Source

PatentUS10934509B2Cleaning product
Publication Date: 2021.03.02 PROCTER & GAMBLE CO

AI summary

A cleaning product having a spray dispenser and a cleaning composition suitable for spraying and foaming, the composition housed in the spray dispenser wherein the composition contains: i) 2 to 15% by weight of a surfactant system comprising an alkyl ethoxylated sulfate anionic surfactant and a specific co-surfactant; and ii) a specific glycol ether solvent.