Surface-Coated Particles for Eco-Friendly Cosmetics
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Solution Overview
Problem
Existing cosmetic products rely on synthetic polymer fine particles to improve texture, which are difficult to decompose and can harm the environment, necessitating the development of environmentally friendly alternatives.
Innovation Solution
Surface-coated particles with a dynamic friction coefficient of 0.50 or less and a standard deviation of 0.020 or less, produced by coating particles with a surface treatment agent, are used to improve the texture of cosmetic products while reducing the use of synthetic polymer fine particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If synthetic polymer fine particles are used to improve texture, then texture improvement is achieved, but environmental harm increases due to difficulty in decomposition
Solution Approach 1:
The invention changes the material composition parameters by replacing synthetic polymers with inorganic particles coated with silicone compounds. This parameter change maintains the texture-improving function while eliminating the environmental harm associated with non-biodegradable synthetic polymers.
Solution Approach 2:
The invention uses composite materials consisting of inorganic particle cores coated with silicone compound layers. This composite structure combines the texture-providing properties of inorganic particles with the surface-modifying benefits of silicone, achieving texture improvement without environmental harm.
2Object-affected harmful factors
If inorganic particles coated with silicone compound are used as alternative, then environmental friendliness is improved, but texture uniformity may be compromised
Solution Approach 1:
The invention applies local quality by coating the surface of inorganic particles with silicone compounds. This creates a differentiated structure where the core provides environmental friendliness and the surface coating provides uniform texture, with each layer performing its specific function.
Solution Approach 2:
The invention uses fluidization technology to uniformly coat inorganic particles with silicone compounds. By fluidizing the particles and introducing the silicone compound in this controlled manner, uniform coating is achieved, ensuring consistent texture properties across all particles.
3Object-affected harmful factors
If surface coating is applied to inorganic particles, then environmental compatibility is improved, but manufacturing complexity increases
Solution Approach 1:
The invention uses fluidization technology to simplify the coating process. By fluidizing the inorganic particles and introducing the silicone compound in a controlled fluid state, the coating is applied uniformly and efficiently, reducing manufacturing complexity compared to traditional coating methods.
Solution Approach 2:
The invention employs a self-service coating mechanism where the silicone compound automatically adheres to the inorganic particles under controlled conditions. This self-coating approach reduces the need for complex external coating equipment and processes.
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 surface-coated particles provide a good texture to cosmetic products, are environmentally friendly, and can significantly reduce the amount of synthetic polymer fine particles used, making them a suitable alternative.
Implementation Method 1
a portion or all of the surface of a particle (A) is coated with a surface treatment agent (B)
Data Source
AI summary
The present invention relates to a surface-coated particle in which a portion or all of the surface of a particle (A) is coated with a surface treatment agent (B), wherein a dynamic friction coefficient of the surface-coated particle is 0.50 or less, when a 5% by mass ethanol dispersion of the surface-coated particle is applied onto a polyurethane substrate in an amount of 2 mg/cm2, and dried for 24 hours under atmospheric pressure at 23° C., followed by measurement under conditions of a load of 3.53 N, a moving speed of 10 mm/sec, a moving distance of 50 mm, 30 reciprocations, and a temperature of 25±2° C., and the standard deviation of the dynamic friction coefficient is 0.020 or less.