Solid Conditioning Composition for Stable Large-Particle Deposition
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Solution Overview
Problem
Consumer product compositions containing hydrophobic conditioning agents face challenges in maintaining stable, large particle sizes to effectively deposit and retain these agents on treated surfaces, leading to wastage due to their small particle size and instability in aqueous liquid formulations.
Innovation Solution
A non-porous dissolvable solid structure is used to house hydrophobic conditioning agents, maintaining their desired mean particle size during packaging, shipping, and storage, which dissolves to form an aqueous treatment liquor, ensuring effective deposition on treated surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If hydrophobic conditioning agents are incorporated in aqueous liquid compositions as emulsions with small particle size, then the formulation stability is improved, but the deposition and retention on treated surfaces deteriorates
Solution Approach 1:
The invention changes the particle size parameter of the hydrophobic conditioning agent from small (typically <1 μm in emulsions) to large (1 μm to 2000 μm). This parameter change enables the conditioning agent to maintain both formulation stability in aqueous compositions and effective deposition/retention on treated surfaces, resolving the technical contradiction between stability and substance loss.
2Loss of substance
If encapsulation systems are used for hydrophobic conditioning agents, then the deposition and retention on surfaces is improved, but the effectiveness of the conditioning agents deteriorates
Solution Approach 1:
The invention extracts the hydrophobic conditioning agent from encapsulation systems and uses it in its native large particle size form (1 μm to 2000 μm) directly in aqueous compositions. This extraction eliminates the encapsulation barrier that was interfering with the conditioning agent's effectiveness, while still achieving improved deposition and retention through the larger particle size itself.
3Stability of the object's composition
If small particle size conditioning agents are used, then the formulation stability is improved, but the wastage increases
Solution Approach 1:
The invention changes the particle size parameter from small to large (1 μm to 2000 μm), which reduces wastage by improving deposition and retention on surfaces. The large particles are less prone to being washed down the drain and are more effectively retained on treated surfaces, thereby reducing energy waste while maintaining formulation 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 solution allows for enhanced deposition and retention of hydrophobic conditioning agents on surfaces, providing improved consumer benefits such as softness and silky feel, as the large particles maintain their size and distribute evenly.
Implementation Method 1
a non- porous dissolvable solid structure comprising a carrier material, and a hydrophobic conditioning agent disposed within the carrier material
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
A consumer product composition comprises a non-porous dissolvable solid structure comprising a carrier material and a hydrophobic conditioning agent disposed within the carrier material, wherein the hydrophobic conditioning agent has a viscosity at 25°C of at least about 0.01 Pa-s. Preferred products are shampoos, hair conditioners, laundry detergents and fabric softeners. Preferably the carrier material comprises a polyethylene glycol and the conditioning agent comprises a silicone or polyisobutene. The conditioning agent is preferably disposed in the carrier as particles having a mean particle size of 2 to 2000 microns. A method of treating a surface comprises dissolving the consumer product composition in an aqueous solution to form an aqueous treatment liquor and contacting the surface with the liquor.