Lamellar Phase Laundry Detergent Pouch for Hydrophobic Material Deposition

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Solution Overview

Problem

Viscous hydrophobic materials like silicones and petrolatum in laundry detergents have low deposition efficiency on fabric surfaces during laundering, and there is a need to enhance their performance, such as fabric softening, and perfume delivery.

Innovation Solution

Incorporating a benefit delivery composition with a mixture of surfactant and fatty amphiphile in a lamellar phase into a multi-compartment laundry detergent water-soluble pouch, where the pouch has specific dimensions and a water-soluble film that dissolves upon contact with water to release the composition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If viscous hydrophobic materials are incorporated into laundry detergent at very low levels, then the formulation can maintain basic cleaning functionality, but the deposition efficiency onto fabric surface during laundering is low

Engineering Contradiction:

Improvedeposition efficiency of viscous hydrophobic materialsVSAvoidfabric softening performance

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The patent introduces a mediator composition containing surfactant and fatty amphiphile in lamellar phase structure. This mediator acts as a carrier that enhances the deposition of viscous hydrophobic materials onto fabric surfaces during laundering, resolving the contradiction between low incorporation levels and low deposition efficiency

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical-chemical parameters of the detergent system by incorporating a lamellar phase structure formed by surfactant and fatty amphiphile. This structural parameter change enables significantly improved deposition efficiency of hydrophobic materials without increasing their incorporation levels

Inventive Principle:

Principle #35Parameter changes

2Productivity

If viscous hydrophobic materials are incorporated into a benefit delivery composition with surfactant and fatty amphiphile in lamellar phase, then fabric softening performance is significantly improved, but the device complexity increases due to multi-compartment pouch structure

Engineering Contradiction:

Improvefabric softening performanceVSAvoidpouch structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the detergent system into multiple compartments within a water-soluble pouch. The benefit delivery composition containing viscous hydrophobic materials and lamellar phase is separated into a distinct compartment, allowing optimized formulation while managing complexity through functional segmentation

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The water-soluble pouch structure serves multiple functions: it contains separate compartments for different detergent components, provides controlled dissolution upon contact with water, and facilitates the release of the benefit delivery composition. This multi-functionality justifies the increased structural complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 significantly improves the deposition of viscous hydrophobic materials and perfume on fabric surfaces, enhancing fabric softening and perfume performance.

Implementation Method 1

a water-soluble pouch, wherein the pouch comprises a first compartment and a second compartment... a water-soluble film that dissolves upon contact with water to release the composition

Methodology Applied

Scientific EffectDissolution: Solvation

Implementation Method 2

the benefit delivery composition comprises a lamellar phase composition and a viscous hydrophobic ingredient, wherein the lamellar phase composition comprises a mixture of surfactant and fatty amphiphile in lamellar phase

Methodology Applied

Scientific EffectLamellar phase:

Data Source

PatentUS9719059B2Lamellar phase-containing laundry detergent in a multi-compartment water-soluble pouch

Publication Date: 2017.08.01 PROCTER & GAMBLE CO

AI summary

The present invention provides a multi-compartment laundry detergent water-soluble pouch, wherein the pouch comprises a first compartment and a second compartment, wherein the first compartment comprises a benefit delivery composition, wherein the second compartment comprises a detergent ingredient, wherein the benefit delivery composition comprises a lamellar phase composition and a viscous hydrophobic ingredient, wherein the lamellar phase composition comprises a mixture of surfactant and fatty amphiphile in lamellar phase, wherein the viscous hydrophobic ingredient comprises silicone and/or petrolatum.