Latex-Free Polyurethane Makeup Sponge with Natural Powders
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Solution Overview
Problem
Current makeup sponges lack sensory and dermatological enhancements, primarily being made from plain polyurethane foam without additional products that improve their use, limiting their effectiveness and versatility in applying cosmetics.
Innovation Solution
A makeup sponge made from a mixture of latex-free polyurethane and 50-70% aromatic and/or dermoactive natural products, providing aroma and skin care benefits, with a drop-shaped configuration for ergonomic use, and an optional beveled flat base for even product application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If makeup sponges are made from plain polyurethane foam, then manufacturing simplicity is maintained, but sensory and dermatological benefits are lacking
Solution Approach 1:
The patent applies composite materials by combining polyurethane foam with aromatic and dermoactive natural products in powder form. This creates a multifunctional sponge that maintains the structural properties of polyurethane while incorporating skin-care and aromatic benefits from natural ingredients like vitamin E, aloe vera, and lavender, thereby resolving the contradiction between manufacturing simplicity and functional versatility.
Solution Approach 2:
The patent modifies the composition parameters of the sponge by incorporating 1-10% aromatic natural products and 1-10% dermoactive natural products into the polyurethane matrix. This parameter change transforms a simple foam into an enhanced cosmetic application tool that provides aroma, skin care, and improved cosmetic application properties without fundamentally changing the manufacturing process.
2Ease of manufacture
If makeup sponges are made from plain polyurethane foam, then production cost is kept low, but product versatility and effectiveness are limited
Solution Approach 1:
The patent creates a cost-effective composite material by incorporating small percentages (1-10%) of aromatic and dermoactive natural products into the polyurethane foam. This approach adds significant versatility and effectiveness for cosmetic application while maintaining reasonable production costs, as the natural products are used as additives rather than primary materials.
Solution Approach 2:
The sponge achieves multi-functionality by combining cosmetic application, aroma therapy, and skin care in a single product. The dermoactive ingredients provide skin care benefits, aromatic ingredients provide fragrance and relaxation, while the polyurethane base provides the structural framework for cosmetic application, thereby increasing product versatility without proportionally increasing cost.
3Adaptability or versatility
If aromatic and dermoactive natural products are added to polyurethane mixture, then sensory and skin care benefits are enhanced, but material complexity increases
Solution Approach 1:
The patent manages material complexity by creating a composite where aromatic and dermoactive natural products are dispersed as powders within the polyurethane matrix. This composite structure allows multiple functional ingredients to coexist without requiring complex layering or separation mechanisms, maintaining relative simplicity while achieving enhanced sensory and skin care benefits.
Solution Approach 2:
The patent applies local quality by distributing aromatic and dermoactive ingredients throughout the polyurethane matrix at controlled concentrations (1-10% each). This ensures that skin care and aromatic benefits are evenly distributed across the sponge surface, providing consistent performance without requiring complex zoned structures or multiple material layers.
Data Source
Figure 1~3
AI summary
Make-up sponge characterized by the fact of being formed by a body (1) obtained by injection of a material formed from a mixture composed of latex-free polyurethane and between 50% to 70% of powder of one or more aromatic and/or dermoactive natural products.