Method of manufacturing a freshening compositions comprising particles suspended in a structured aqueous composition

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Solution Overview

Problem

Existing methods for manufacturing freshening compositions with suspended particles are ineffective at large commercial scales, requiring new approaches to ensure long-lasting and controlled freshness delivery.

Innovation Solution

A method involving mixing an aqueous carrier with ion-forming water-soluble ingredients, followed by the addition of polysaccharides to form a structured composition, and then dispersing particles, which maintains the composition at specific temperature and pH levels to achieve a stable, sprayable freshening product.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If known methods of making freshening compositions are used, then manufacturing can be performed, but the methods are ineffective at making large, commercial-scale quantities

Engineering Contradiction:

Improvemanufacturing scaleVSAvoidmanufacturing effectiveness

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The manufacturing process is divided into multiple sequential stages: (1) mixing aqueous carrier with ion-forming water-soluble ingredients to form aqueous premix, (2) subsequently mixing first polysaccharide into the aqueous premix, (3) mixing second polysaccharide into the aqueous premix after mixing the first polysaccharide to form structured aqueous composition, and (4) dispersing particles into the structured aqueous composition. This segmentation allows each stage to be optimized for large-scale commercial production while maintaining effectiveness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The ion-forming water-soluble ingredients are mixed with the aqueous carrier first to form an aqueous premix before adding polysaccharides and particles. This preliminary action ensures proper dissolution and distribution of ionic components, creating an optimal base for subsequent additions and enabling reliable large-scale manufacturing.

Inventive Principle:

Principle #10Preliminary action

2Duration of action of moving object

If particles are suspended in freshening composition, then long-lasting and controlled freshness is delivered, but manufacturing at large scale requires very different making steps and mixing profiles

Engineering Contradiction:

Improvefreshness durationVSAvoidmixing process complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The method specifies maintaining the aqueous premix, structured aqueous composition, and final freshening composition at controlled temperature and pH levels throughout the manufacturing process. These parameter controls ensure consistent particle suspension and freshness delivery while enabling standardized large-scale production procedures.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The freshening composition combines multiple components (aqueous carrier, ion-forming water-soluble ingredients, first polysaccharide, second polysaccharide, and particles) into a structured composite system. This composite structure provides both the long-lasting freshness functionality and the manufacturability at commercial scale through defined mixing sequences.

Inventive Principle:

Principle #40Composite materials

3Stability of the object's composition

If polysaccharides are added to form structured composition, then particle suspension is achieved, but the composition must be maintained at specific temperature and pH levels

Engineering Contradiction:

Improvecomposition stabilityVSAvoidmanufacturing simplicity

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The structured aqueous composition self-regulates to maintain particle suspension through the synergistic interaction of polysaccharides at controlled temperature and pH. This self-structuring capability reduces the need for complex external stabilization mechanisms while ensuring composition stability during large-scale manufacturing.

Inventive Principle:

Principle #25Self-service

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 method produces a stable freshening composition with minimal residue and effective particle suspension, suitable for large-scale commercial production, ensuring long-lasting freshness and easy application.

Implementation Method 1

subsequently mixing a first polysaccharide into the aqueous premix; mixing a second polysaccharide into the aqueous premix after mixing the first polysaccharide into the aqueous premix to form a structured aqueous composition

Methodology Applied

Scientific EffectPolysaccharide structuring: Gel

Data Source

PatentUS11602571B2Method of manufacturing a freshening compositions comprising particles suspended in a structured aqueous composition

Publication Date: 2023.03.14 PROCTER & GAMBLE CO

AI summary

A method of manufacturing an aqueous freshening composition having a plurality of particles suspended by a structurant system is provided. The method includes the steps of: mixing an aqueous carrier and at least 80 wt. % of ion-forming water-soluble ingredients of the freshening composition to form an aqueous premix; subsequently mixing a first polysaccharide into the aqueous premix; mixing a second polysaccharide into the aqueous premix after mixing the first polysaccharide into the aqueous premix to form a structured aqueous composition; and dispersing a plurality of particles into the structured aqueous composition to form the freshening composition.