Removable Laminar Cover for Cosmetic Applicator Hygiene

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Solution Overview

Problem

Conventional cosmetic sample applicators fail to protect the product from contamination and damage during handling, especially when handled by multiple people, as they lack a comprehensive sealing mechanism and are prone to spillage or staining.

Innovation Solution

A laminar substrate with a polyester film and polyolefin foam, featuring a removable laminar cover that seals the entire applicator, with embossed reservoirs for the cosmetic product and channels for the handling area, ensuring waterproofing and hygiene.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional sample applicator is used with an uncovered grip area, then the applicator is easy to handle, but the grip area gets contaminated by multiple handlers

Engineering Contradiction:
Improvehandling easeVSAvoidcontamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A laminar cover made of flexible film material completely covers the applicator including the grip area. The cover can be peeled off easily to reveal the sample while preventing contamination during storage and handling by multiple people.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The applicator is designed as a single-use disposable item with a complete laminar cover that protects the entire surface. After one use, the entire applicator is discarded, ensuring no cross-contamination between users while maintaining ease of handling.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Ease of operation

If the laminar cover is completely removed, then the cosmetic product is accessible for application, but the product may spill or be contaminated

Engineering Contradiction:
Improveproduct accessibilityVSAvoidproduct integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The laminar cover is segmented with a tear line that allows it to be peeled off in a controlled manner. This segmentation enables easy access to the cosmetic product while maintaining product integrity during the peeling process and preventing spillage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cosmetic product is pre-loaded into reservoirs with roughness features that secure the product in place. The laminar cover is pre-sealed over the product, and the tear line is pre-positioned to allow clean removal without disturbing the product, ensuring both accessibility and integrity.

Inventive Principle:
Principle #10Preliminary action

3Strength

If adhesive is used to seal the laminar cover, then the cover is securely attached, but the adhesive may not be skin-safe or effective

Engineering Contradiction:
Improvesealing strengthVSAvoidskin irritation
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The mechanical adhesive sealing system is replaced with a thermal sealing system. Heat is applied to melt the thermoplastic laminar cover material and bond it to itself or the substrate, creating a strong seal without using potentially harmful adhesives. The seal remains skin-safe while providing adequate sealing strength.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Ease of manufacture

If the substrate material is not sufficiently waterproof, then the manufacturing is simpler, but the cosmetic product leaks or loses integrity

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidwaterproofing
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The laminar cover and substrate are made from composite materials combining multiple layers with different properties. The composite structure provides excellent waterproofing and product containment while remaining manufacturable through standard lamination and thermal sealing processes.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS11452357B2Applicator for pasty cosmetic products
Publication Date: 2022.09.27 ANTONINI LUIS CHRISTIAN
  • US11452357B2 patent drawing
  • US11452357B2 patent drawing
  • US11452357B2 patent drawing

AI summary

An applicator for pasty cosmetic products that allows a better handling of the applicator in order to significantly improve the distribution of the cosmetic product during its application, and in turn, avoids “getting dirty” and/or “stained” with the cosmetic product or contaminating the same during its handling, thanks to the fact that it has separate sectors each with different purposes and a removable laminar cover that covers the entire applicator.