Water-Soluble Unit Dose Dissolution in Low Water

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing fibrous water-soluble unit dose articles face challenges in dissolving quickly in limited water amounts, especially in modern washing machines that use less water, which affects the timely release of cleaning agents.

Innovation Solution

A water-soluble unit dose article comprising a water-soluble fibrous structure and particles with a specific ratio of Linear Alkylbenzene Sulfonate to Alkylethoxylated Sulfate greater than 1, which enhances dissolution profiles and ensures effective delivery of surfactant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If conventional fibrous water-soluble unit dose articles are used, then the structure provides a measured dosage of treatment composition, but the dissolution rate is slow in limited water amounts

Engineering Contradiction:
Improvedissolution rateVSAvoidwater amount
Core Design Contradiction:
SpeedVSQuantity of substance

Solution Approach 1:

The patent changes the chemical composition parameters of the surfactant system by establishing a specific ratio relationship between LAS and AES components. This parameter optimization enables the detergent composition to achieve rapid dissolution in limited water while maintaining effective cleaning performance, directly resolving the contradiction between dissolution speed and water quantity.

Inventive Principle:
Principle #35Parameter changes

2Speed

If the dissolution rate is increased in limited water, then cleaning agents are released more quickly, but the surfactant composition must be optimized

Engineering Contradiction:
Improverelease rate of cleaning agentsVSAvoidsurfactant composition complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent optimizes the surfactant composition by establishing a specific ratio parameter between LAS and AES, transforming a complex formulation problem into a controlled parameter relationship. This approach enables rapid release of cleaning agents while simplifying the composition design through defined ratio parameters rather than complex multi-component formulations.

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 described unit dose article exhibits improved dissolution profiles, allowing for the rapid release of surfactants, even in limited water conditions, thereby maintaining cleaning effectiveness.

Implementation Method 1

water-soluble unit dose articles are capable of dissolving quickly in a limited amount of fluid

Methodology Applied
Scientific EffectDissolution: Solvation

Implementation Method 2

release of cleaning agents so that they become readily available

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Data Source

PatentUS12234431B2Water-soluble unit dose articles comprising water-soluble fibrous structures and particles
Publication Date: 2025.02.25 PROCTER & GAMBLE CO
  • US12234431B2 patent drawing
  • US12234431B2 patent drawing
  • US12234431B2 patent drawing

AI summary

Described herein is a water-soluble unit dose with a particle having a ratio of Linear Alkylbenzene Sulfonate to Alkylethoxylated Sulfate of greater than 1.