Micaceous Pearlescent Pigment Cosmetic Composition Stability

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Solution Overview

Problem

Conventional solidified compact powdery cosmetic compositions with high levels of pearlescent pigments suffer from low stability and ease of breakage, which can be improved by adding fillers or binders, but this reduces shininess and color intensity.

Innovation Solution

A cosmetic composition combining micaceous and pearlescent pigments in a solid form, with a high content of spherical particles, providing stability, high color intensity, and metallic finish, while minimizing the use of conventional fillers and binders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If fillers or binders are added to improve stability, then stability is improved, but shininess and color intensity are reduced

Engineering Contradiction:
ImprovestabilityVSAvoidshininess and color intensity
Core Design Contradiction:
Stability of the object's compositionVSIllumination intensity

Solution Approach 1:

The patent combines micaceous pigment particles with spherical particles to create a composite cosmetic composition. This composite structure provides both stability (from the micaceous pigment's layered structure) and high shininess/color intensity (from the spherical particles' light-reflecting properties), resolving the contradiction between stability and visual performance without requiring additional fillers or binders

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If conventional fillers or binders are added to reduce breakage, then stability is improved, but the composition requires more ingredients increasing complexity

Engineering Contradiction:
ImprovestabilityVSAvoidcomposition complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The spherical particles in the composition serve multiple functions simultaneously: they provide structural stability to prevent breakage, contribute to the metallic finish and shininess, and act as a pigment carrier. This multi-functionality eliminates the need for separate fillers and binders, reducing composition complexity while maintaining stability

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enhanced stability, long-lasting performance, and high shininess, maintaining color intensity and coverage without the need for repeated applications, suitable for various cosmetic products.

Implementation Method 1

The composition may have a metallic finish and/or a high level of shininess

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

at least one micaceous pigment and at least one pearlescent pigment

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS20240041721A1Metallic powder
Publication Date: 2024.02.08 SHISEIDO CO LTD

AI summary

Provided is a cosmetic composition that includes at least one micaceous pigment and at least one pearlescent pigment.