Air-Block Cosmetic Refill Container for Contamination-Free Refilling

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Solution Overview

Problem

Existing cosmetic containers with refillable systems expose the cosmetic preparation to air during refilling, leading to rancidity and contamination, thus shortening the lifespan of the product.

Innovation Solution

A cosmetic refill container with an air block structure that includes a sealing coupling unit and a sealing member to prevent contact between the cosmetic preparation and external air during refilling, using a sealing member to cover the discharge passage and a supporting step to lock the pumping unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cosmetic preparation is stored in a refill container and refilled by opening the cap, then refilling is possible, but the cosmetic preparation comes in contact with air and becomes rancid or contaminated

Engineering Contradiction:

Improverefilling operationVSAvoidair contact causing rancidity and contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A pumping unit is introduced as an intermediary device between the refill container and the cosmetic preparation. The pumping unit enables refilling through a discharge passage without requiring direct opening of the refill container cap, thus preventing air contact with the cosmetic preparation while maintaining ease of refilling operation

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a protected environment for the cosmetic preparation by using the pumping unit mechanism that allows refilling without exposing the preparation to external air. The discharge passage serves as a controlled pathway that maintains an inert or air-free environment during the refilling process

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

2Reliability

If individual packaging is used for liquid cosmetic preparations, then each user has their own preparation, but a relatively large amount of cosmetic preparation remains in the capsule after use

Engineering Contradiction:

Improveindividual packaging integrityVSAvoidleftover cosmetic preparation

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The refill container is designed as a universal container that can be refilled multiple times using the pumping unit. Instead of single-use individual packaging, the same container serves multiple uses through repeated refilling, thereby eliminating the waste of leftover preparation associated with single-use capsules

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12616288B2Cosmetic refill container and cosmetic container having the same

Publication Date: 2026.05.05 FS KOREA INDUSTRIES INC

AI summary

A cosmetic refill container having an air block structure and a cosmetic container having the cosmetic refill container are disclosed. The cosmetic refill container having an air block structure of the present disclosure includes: a refill container main body configured to store a cosmetic preparation therein and coupled to a container main body; a sealing coupling unit coupled to the refill container main body and provided as a discharge passage of the cosmetic preparation stored in the refill container main body; anda sealing member coupled to the sealing coupling unit and configured to prevent contact between the cosmetic preparation stored in the refill container main body and external air.Since this embodiment applies an air block structure, when the refill container is replaced, refilling is possible without contact between a cosmetic preparation and air, so it is possible to prevent rancidity or contamination of the cosmetic preparation.