Makeup Applicator Film Layer for Uniform Application

Solution Overview

Problem

Conventional makeup applicators face issues with uniform cosmetic material application due to excessive permeation through recessed sections, leading to uneven application, residue, and difficulty in washing, as well as potential hardening and noise generation from dried material.

Innovation Solution

A makeup applicator with a slice sheet made from an open-cell foam sponge, where a film layer is thermally transferred onto the inner surfaces of recessed sections, preventing cosmetic material from entering these areas and ensuring uniform application by blocking passage through the recessed sections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the amount of cosmetic material on the applicator is increased, then the skin receives less resistance during application, but the applicator slips and cannot apply cosmetic material uniformly

Engineering Contradiction:

Improveapplication smoothnessVSAvoidapplication uniformity

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

A film is provided on the sliced surface of the open-cell foam body to control cosmetic material release. The film acts as a flexible barrier that prevents excessive absorption while allowing controlled transfer to the skin, maintaining both application smoothness and uniformity

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The physical and chemical properties of the film are optimized to achieve the right balance of cosmetic material retention and release. By adjusting film parameters such as porosity, thickness, and material composition, the applicator maintains consistent performance without slipping or uneven application

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If the thickness of the sliced open-cell foam body is reduced to control cosmetic material impregnation, then application uniformity improves, but cosmetic material permeates to the opposite side and dirtys fingers

Engineering Contradiction:

Improveapplication uniformityVSAvoidcosmetic material permeation

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

A film is provided on the sliced surface of the open-cell foam body to control cosmetic material release. The film acts as a flexible barrier that prevents excessive absorption while allowing controlled transfer to the skin, maintaining both application smoothness and uniformity

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The applicator combines the open-cell foam body with a film layer to create a composite structure. This composite design leverages the high absorption capacity of the foam while the film provides a controlled release mechanism, preventing permeation to the opposite side

Inventive Principle:

Principle #40Composite materials

3Quantity of substance

If a film is provided on the sliced surface to prevent cosmetic material permeation, then cosmetic material retention improves, but the film may not adhere properly to the irregular surface

Engineering Contradiction:

Improvecosmetic material retentionVSAvoidfilm adhesion

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

A film is provided on the sliced surface of the open-cell foam body to control cosmetic material release. The film acts as a flexible barrier that prevents excessive absorption while allowing controlled transfer to the skin, maintaining both application smoothness and uniformity

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The physical and chemical properties of the film are optimized to achieve the right balance of cosmetic material retention and release. By adjusting film parameters such as porosity, thickness, and material composition, the applicator maintains consistent performance without slipping or uneven application

Inventive Principle:

Principle #35Parameter changes

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 solution allows for controlled cosmetic material impregnation, preventing excessive absorption and residue, ensuring easy washing, maintaining applicator softness, and eliminating noise and line formation, thus enhancing user experience.

Implementation Method 1

a film layer is provided on the other side of the slice sheet by adhering it along the inner surfaces of two types of recessed sections formed by roughening the surface by a slice blade and formed by cutting the original pores in the open-cell foam sponge; wherein the film layer may be formed by means of thermal transfer

Methodology Applied

Scientific EffectThermal transfer:

Data Source

PatentEP2471407B1Makeup applicator

Publication Date: 2014.06.18 NAKAMURA KENJI

Figure 1(a)~2
Figure 3(a)~3(b)
Figure 4(a)~4(b)

AI summary

When using a makeup applicator, a cosmetic material has been excessively absorbed into the makeup applicator, sound due to void has occurred during the use of the makeup applicator, or wrinkles have occurred by the use thereof. In order to solve this, provided is a makeup applicator wherein one surface of a slice sheet (1) obtained by slicing an open-cell foam sponge forms a coating surface, and a coating layer (2) is provided so as to adhere to a recessed section, in accordance with the shape of the inner surface thereof, in which two types of recessed sections: a recessed section formed by that the surface of the other surface of the slice sheet (1) is roughened by a slice blade, and a recessed section formed by that the original pores of the open-cell foam sponge are cut are combined and formed, and wherein the surface one the side on which the coating layer (2) of the slice sheet (1) is formed ins bonded to a base material (3).