Water-Soluble Powder Detergent for Stable On-Site Dilution

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Solution Overview

Problem

The existing use of water-based liquid detergents in plastic packaging for car washes and industrial cleaning is economically and environmentally disadvantageous due to high plastic usage, transport costs, and fuel consumption.

Innovation Solution

A water-soluble powder detergent is developed, which can be mixed on-site with a polar solvent to create customized liquid detergent solutions with optimal concentrations for specific applications, reducing plastic packaging and transport volumes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If liquid detergent is concentrated to reduce packaging and transportation costs, then the concentration and stability of the detergent improve, but the detergent tends to separate into oil and water phases

Engineering Contradiction:
Improvedetergent concentrationVSAvoidphase stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

A specific salt is introduced as an intermediary substance to mediate between the oil phase and water phase. This salt acts as a bridging agent that facilitates interaction between the hydrophobic oil components and hydrophilic water components, preventing phase separation while maintaining high concentration. The salt concentration is controlled within 5-20% of the total composition to achieve optimal stabilization.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the concentration parameters of both the detergent components and the added salt to achieve a stable high-concentration formulation. By optimizing the salt concentration within a specific range (5-20%) and adjusting the detergent component ratios, the system maintains phase stability at high concentrations that would otherwise cause separation.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If salt is added to prevent detergent separation, then the stability of the detergent improves, but excessive salt causes irritation to skin and eyes

Engineering Contradiction:
Improvephase stabilityVSAvoidskin and eye irritation
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The salt concentration is precisely controlled within the range of 5-20% of the total composition. This parameter optimization ensures sufficient salt is present to stabilize the detergent formulation and prevent phase separation, while remaining below the threshold that causes irritation to skin and eyes. This quantitative control resolves the contradiction between stability and safety.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If conventional detergents are diluted for use, then they can effectively clean, but they require large amounts of water and generate extensive foam

Engineering Contradiction:
Improvedetergent effectivenessVSAvoidwater consumption
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The invention changes the concentration parameter of the detergent formulation, creating a highly concentrated product that requires minimal dilution for effective use. This high-concentration formulation maintains cleaning effectiveness while significantly reducing the amount of water needed compared to conventional diluted detergents.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The formulation extracts and eliminates excessive foam generation from the detergent system while retaining cleaning effectiveness. By carefully selecting and balancing the detergent components and salt concentration, the patent achieves a formulation that cleans effectively without producing the extensive foam characteristic of conventional detergents.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This approach significantly reduces environmental impact and transportation costs by allowing on-demand detergent production, optimizing logistics and customizing detergent solutions for various uses.

Implementation Method 1

When a detergent is concentrated...it separates into an oil layer and a water layer. In order to prevent this, it is necessary to add a salt

Methodology Applied
Scientific EffectSalting out:

Implementation Method 2

a water-soluble powder detergent which is highly concentrated and has excellent stability

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Data Source

PatentEP4433566B1Concentrated water-soluble powder detergent
Publication Date: 2026.05.06 DAERG CHIMICA SRL

AI summary

The present invention relates to a water-soluble powder detergent and a liquid detergent compositon obtainable by mixing said water-soluble powder detergent with a polar solvent, prefereably an aqueous solvent, more preferably water. The present invention also relates to the use of said liquid detergent composition for pre-washing and/or internal and/or external washing of vehicles or parts thereof or for washing industrial floors and/or surfaces.