Sprayable Freshening Composition with Structurant System for Particle Suspension
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Solution Overview
Problem
Existing sprayable freshening compositions with perfume capsules lack stability, leading to inconsistent distribution and residue issues, as the capsules tend to float or sink, requiring shaking for mixing and resulting in uneven perfume delivery.
Innovation Solution
A freshening composition with a structurant system comprising xanthan gum and konjac gum or locust bean gum, which maintains particle suspension and stability, producing uniform spray droplets with minimal residue, eliminating the need for shaking and ensuring consistent perfume delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If perfume capsules are suspended in sprayable composition, then freshness delivery is improved, but the capsules float to the top causing unstable distribution
Solution Approach 1:
A structurant system comprising xanthan gum and konjac gum or locust bean gum is introduced as an intermediary substance to mediate between the perfume capsules and the liquid composition. This structurant system creates a stable colloidal suspension that prevents capsule flotation while maintaining sprayability, resolving the contradiction between freshness delivery and composition stability.
2Manufacturing precision
If structurant systems are used to suspend particles, then distribution uniformity is improved, but the composition becomes viscous and unsprayable
Solution Approach 1:
The concentration of the structurant system is precisely controlled within specific ranges (xanthan gum: 0.01-0.5 wt%, konjac gum: 0.01-0.3 wt%, locust bean gum: 0.01-0.3 wt%) to optimize the balance between suspension stability and sprayability. This parameter optimization allows the composition to maintain uniform particle distribution while remaining sufficiently fluid for spray application.
3Stability of the object's composition
If high concentration of structurant system is used, then particle suspension stability is improved, but residue on surface increases
Solution Approach 1:
Rather than using high concentrations of structurant system, the invention employs partial action with low concentrations (total structurant content: 0.02-1.0 wt%) that provides sufficient suspension stability for phase stability grade 1 or 2 while minimizing residue deposition on surfaces. This optimized concentration range achieves the necessary stability without excessive residue generation.
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 composition achieves phase stability, uniform spray droplet size, and low residue, providing a consistent and efficient freshening solution without the need for pre-shaking, ensuring effective air and surface freshness.
Implementation Method 1
a plurality of particles and a structurant system, wherein the freshening composition has a phase stability grade of 1 or 2
Implementation Method 2
spraying the freshening composition in the form of a plurality of spray droplets
Data Source
AI summary
A method of freshening the air or a surface is provided. The method comprises the steps of: providing a freshening composition, the freshening composition comprising a plurality of particles and a structurant system; and spraying the freshening composition in the form of a plurality of spray droplets, wherein the plurality of spray droplets have: a normalized D(90) value of less than 2.5, when sprayed from a TS800 sprayer according to the SPRAY D(90) NORMALIZED AND SPRAY D(4,3) NORMALIZED TEST METHOD described herein, a residue value of less than about 8 at 5 sprays, according to the RESIDUE TEST METHOD described herein, and a phase stability grade of 1 or 2, according to the PHASE STABILITY GRADE AT 25° C. TEST METHOD described herein.