Perfume Particle Composition for Stable Laundry Processing
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Solution Overview
Problem
Existing perfume particles for laundry lack improved processing characteristics, leading to consumer dissatisfaction.
Innovation Solution
A composition comprising polyethylene glycol as a primary carrier and a secondary carrier with a specific particle size range of 35 to 75 μm, along with perfume materials, to achieve suitable processing viscosity and structuring without sedimentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If perfume particles are formulated with polyethylene glycol and perfume materials, then fragrance delivery is achieved, but processing characteristics are insufficient leading to poor consumer acceptance
Solution Approach 1:
The patent applies parameter changes by carefully controlling the molecular weight of polyethylene glycol (specifically PEG 8000 with Mw=8000) and the particle size of secondary carriers (35-75 μm volume average). These parameter optimizations improve processing characteristics such as viscosity and structuring while preventing sedimentation, thereby enhancing both manufacturability and consumer acceptance of the perfume particles
Solution Approach 2:
The patent uses composite materials by combining polyethylene glycol (30-95 wt%), secondary carrier particles (0.1-60 wt%), and perfume materials (0.1-30 wt%). This composite formulation integrates materials with different functions: PEG provides solubility and processing benefits, secondary carriers provide structuring and viscosity control, and perfume materials provide fragrance delivery, collectively resolving the contradiction between ease of manufacture and reliability
2Ease of manufacture
If secondary carrier particles are added to provide structuring, then processing viscosity is improved, but sedimentation occurs in the product
Solution Approach 1:
The patent resolves this contradiction through precise parameter control of secondary carrier particle size, specifying a volume average particle size of 35-75 μm. This optimized size range provides sufficient structuring effect to improve processing viscosity while being small enough to prevent sedimentation in the final product, achieving both ease of manufacture and compositional stability
Solution Approach 2:
The patent applies local quality by using secondary carrier particles with specific localized properties (particle size 35-75 μm) that provide structuring where needed in the melt during processing, while their size distribution ensures they remain suspended uniformly in the final particle product, thus providing different qualities in different contexts (processing vs. final product stability)
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 provides superior perfume particles with optimal processing characteristics and prevents sedimentation, resulting in consumer-acceptable products.
Implementation Method 1
polyethylene glycol is melted and a secondary carrier in the form of particles having a volume average particle size of 35 to 75 μm are dispersed therein
Data Source
AI summary
A composition comprising a plurality of particles and methods for producing the plurality of particles. The particles comprise: 30 to 95 wt. % polyethylene glycol and the polyethylene glycol has a weight average molecular weight from 4000 to 12000. The plurality of particles further includes 0.1 to 60 wt. % of a secondary carrier. The secondary carrier is provided in the form of particles having a volume average particle size of 35 to 75 μm. The plurality of particles also includes 0.1 to 30 wt. % perfume materials.