Cosmetic Composition Using Yeast Cell Wall Particles

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Solution Overview

Problem

Cosmetics containing inorganic powders like titanium oxide result in a matte finish and dull skin, while organic powders from fossil fuels pose environmental concerns due to non-biodegradability, necessitating a solution that offers a high soft focus, skin beautifying, and moisture retaining effect while being environmentally friendly.

Innovation Solution

A cosmetic composition utilizing yeast cell wall particles with specific size and shape retention, which are biodegradable and provide a soft focus effect through favorable light scattering, enhancing skin appearance and reducing environmental impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If inorganic powder materials like titanium oxide are used to achieve soft focus effect, then light scattering performance is improved, but skin appears dull and matte without luster

Engineering Contradiction:

Improvelight scattering performanceVSAvoidskin dullness and matte appearance

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from inorganic titanium oxide to organic yeast cell wall particles, while adjusting particle size parameters (1-25 μm average diameter) to optimize light scattering. This material substitution maintains soft focus effect while eliminating the dulling effect, as yeast particles provide natural luster and skin beautifying properties without the matte finish associated with inorganic powders.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses composite yeast cell wall particles that combine multiple beneficial properties: light scattering capability for soft focus, skin beautifying effects, and moisture retaining properties. The yeast cell wall structure naturally provides these combined functions, replacing the need for separate inorganic fillers and additional cosmetic additives.

Inventive Principle:

Principle #40Composite materials

2Illumination intensity

If organic powder materials from fossil fuels like polyethylene powder are used to achieve soft focus effect, then light scattering performance is improved, but environmental impact increases due to non-biodegradability

Engineering Contradiction:

Improvelight scattering performanceVSAvoidenvironmental pollution and non-biodegradability

Core Design Contradiction:

Illumination intensityVSObject-generated harmful factors

Solution Approach 1:

The patent adopts biodegradable yeast cell wall particles that can naturally decompose in the environment, replacing persistent fossil fuel-based polyethylene particles. The yeast particles perform their light scattering function effectively and then break down naturally, eliminating long-term environmental pollution while maintaining cosmetic performance.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent changes the material composition parameter from synthetic polyethylene to natural yeast cell wall material, fundamentally altering the environmental degradation characteristics. This substitution maintains the necessary optical properties for soft focus while introducing biodegradability, thus resolving the environmental contradiction.

Inventive Principle:

Principle #35Parameter changes

3Illumination intensity

If yeast cell wall particles with larger particle diameter are used to improve soft focus effect, then light scattering performance is improved, but coverage of skin unevenness and wrinkles decreases

Engineering Contradiction:

Improvelight scattering performanceVSAvoidcoverage of skin unevenness and wrinkles

Core Design Contradiction:

Illumination intensityVSManufacturing precision

Solution Approach 1:

The patent optimizes the particle size parameter to a specific range (1-25 μm average diameter) that balances two competing requirements: larger particles provide better light scattering for soft focus, while smaller particles provide better coverage of fine skin imperfections. This precise parameter control allows simultaneous achievement of both effects.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a distributed particle size distribution within the 1-25 μm range, where different sized particles perform different functions: larger particles contribute to light scattering and soft focus, while smaller particles fill in skin unevenness and wrinkles. This local differentiation of particle functions within a single material system resolves the contradiction.

Inventive Principle:

Principle #3Local quality

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 cosmetic composition achieves a high soft focus, skin beautifying, and moisture retaining effect while being safe and environmentally friendly, using yeast cell wall particles that are biodegradable and effective in reducing skin dullness and unevenness.

Implementation Method 1

blurring unevenness and wrinkles on skin by scattered reflection of light to make skin defects inconspicuous

Methodology Applied

Scientific EffectLight scattering: Scattering

Data Source

PatentUS11179318B2Cosmetic composition

Publication Date: 2021.11.23 NIPPON PAPER IND CO LTD

AI summary

An object is to provide a cosmetic composition that: has a high soft focus effect, a high skin beautifying effect, and a high moisture retaining effect; is safe; and enables reduction in environmental impact.Yeast cell wall particles retaining shapes of yeast cell walls and having an average particle diameter ranging from 1 to 25μm are prepared and blended in a cosmetic composition.