Dissolvable Solid Article Silicone Homogeneity
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Solution Overview
Problem
Dissolvable solid articles containing silicones often experience reduced dissolution speed, sticky feel, non-homogeneous conditioning benefits, and discoloration due to non-uniform silicone distribution and particle size, which affects their performance on substrates like fabrics and hair.
Innovation Solution
A dissolvable solid article comprising a homogeneous mixture of 10-50% water-soluble polymer, 5-80% surfactant, and 0.1-40% silicone with a particle size of 50 nm to 25 microns, avoiding silicone surface coatings to ensure uniform distribution and prevent staining and discoloration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicone is added to dissolvable solid articles for conditioning benefit, then conditioning performance is improved, but dissolution speed is reduced and sticky feel occurs
Solution Approach 1:
The patent applies parameter changes by controlling silicone particle size within a specific range (50 nm to 25 microns) and optimizing the water-soluble polymer content (10-50%) to balance conditioning benefits with dissolution speed, preventing both sticky feel and slow dissolution
Solution Approach 2:
The patent applies local quality by ensuring homogeneous distribution of silicone particles throughout the dissolvable solid article matrix, creating uniform local conditioning effects while maintaining overall dissolution performance through consistent particle dispersion
2Reliability
If silicone surface coating is applied to dissolvable solid articles, then silicone benefit is provided, but non-homogeneous distribution causes sticky feel and staining
Solution Approach 1:
The patent extracts the problematic surface coating approach and instead incorporates silicone particles directly into the bulk matrix of the dissolvable solid article, eliminating the coating layer that caused non-homogeneous distribution, sticky feel, and staining on substrates
Solution Approach 2:
The patent achieves homogeneity by formulating the dissolvable solid article with uniformly distributed silicone particles throughout the water-soluble polymer matrix, ensuring consistent silicone benefit delivery without localized concentration that causes sticky feel or staining
3Reliability
If silicone is incorporated into dissolvable solid articles, then conditioning performance is enhanced, but article discoloration occurs
Solution Approach 1:
The patent applies parameter changes by selecting specific silicone particle sizes (50 nm to 25 microns) and controlling the water-soluble polymer content (10-50%) to prevent discoloration while maintaining conditioning performance, optimizing the formulation parameters to avoid harmful effects
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 maintains the benefits of silicones while preventing reduced dissolution speed, sticky feel, and non-homogeneous conditioning, ensuring effective and aesthetically pleasing performance on substrates without discoloration.
Implementation Method 1
a water soluble polymer
Implementation Method 2
a surfactant
Implementation Method 3
a silicone, wherein the silicone has a particle size of from about 50 nm to about 25 micron
Data Source
AI summary
A dissolvable solid article that is formed by a homogeneous mixture. The mixture includes from about 10% to about 50% of a water soluble polymer, from about 5% to about 80% of a surfactant; and from about 0.1% to about 40%, of a silicone. The silicone can have a particle size of from about 50 nm to about 25 micron. The silicone can have the article contains up to 0.2% nitrogen coming from the silicone.