Multi-Compartment Water-Soluble Pouch for Differential Detergent Release

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing detergent forms, particularly water-soluble pouches, face challenges in providing controlled and differential release of ingredients due to size and geometry constraints in dispensers, and the need for compatibility of ingredients like bleach and enzymes.

Innovation Solution

A multi-compartment water-soluble pouch design with at least two side-by-side compartments superposed onto another, allowing for different compositions and solubility profiles, enabling controlled release of detergent ingredients such as bleach and enzymes during the wash cycle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a multi-compartment pouch design is used to provide controlled and differential release of detergent ingredients, then the cleaning performance and stability of ingredients are improved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvecontrolled release of detergent ingredientsVSAvoidmulti-compartment structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pouch is divided into multiple compartments (first compartment, second compartment, third compartment) that are superposed onto each other. Each compartment contains different detergent ingredients (enzymes, bleach, surfactants) that are released at different times during the wash cycle. This segmentation enables controlled differential release while maintaining a compact structure that fits standard dispensers.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The compartments are arranged in a superposed configuration where the first, second, and third compartments are stacked vertically within the pouch structure. This nesting arrangement allows multiple ingredients to be contained in a compact volume, reducing the overall pouch size while maintaining the ability to release different ingredients at different times.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the pouch is designed to be compact for use in automatic dishwashing machines, then the adaptability to dispenser geometry is improved, but the volume available for detergent ingredients is reduced

Engineering Contradiction:
Improvecompatibility with dispenser geometryVSAvoidvolume for detergent ingredients
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

Instead of expanding the pouch horizontally to increase ingredient volume, the design utilizes the vertical dimension by superposing compartments onto each other. The first, second, and third compartments are stacked vertically, allowing the pouch to maintain a compact horizontal footprint suitable for dispenser geometry while accommodating sufficient ingredient volume through vertical stacking.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If different compositions are placed in different compartments for controlled release, then the cleaning efficiency is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidseparation of different compositions
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

Different detergent compositions are separated into different compartments: the first compartment contains enzymes, the second compartment contains bleach, and the third compartment contains surfactants. This physical separation prevents premature interaction between incompatible ingredients while ensuring they are released in the correct sequence during the wash cycle, improving cleaning efficiency without requiring complex manufacturing precision.

Inventive Principle:
Principle #1Segmentation

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 pouch design ensures optimal performance of enzymes by releasing them before bleach, improving cleaning efficiency and stability, while the anti-redeposition surfactant suspends soils for better cleaning, and the rinse aid composition promotes spot-free rinsing.

Implementation Method 1

The pouch is formed by a plurality of water-soluble films which form a plurality of compartments

Methodology Applied
Scientific EffectSolubility: Solvation

Implementation Method 2

at least two of the films which form different compartments have different solubility, under the same conditions, releasing the content of the compositions which they partially or totally envelope at different times

Methodology Applied
Scientific EffectDifferential solubility: Solvation

Data Source

PatentUS20100192986A1Water-soluble pouch
Publication Date: 2010.08.05 PROCTER & GAMBLE CO
  • US20100192986A1 patent drawing
  • US20100192986A1 patent drawing
  • US20100192986A1 patent drawing

AI summary

A detergent multi-compartment pouch having a plurality of water-soluble films forming a plurality of compartments the pouch comprising two side-by-side compartments superposed onto another compartment wherein at least two different compartments contain two different compositions.