Cosmetic Bag Valve System for Complete Exhaustion
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Solution Overview
Problem
Conventional hair cosmetic aerosols, particularly foams, fail to provide a rich and creamy texture, leading to incomplete can exhaustion and sensitivity to usage, with propellants often compromising the foam's quality and texture.
Innovation Solution
A cosmetic composition contained in a flexible bag with a valve mechanism, allowing for the use of any propellant combination, including carbon dioxide, to create a stable, creamy mousse that can be discharged as a foam, ensuring maximum can exhaustion without compromising texture or appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional aerosol cans are used with propellants like propane or butane, then the foam can be dispensed, but the haptic and optical properties are compromised (less creamy and rich)
Solution Approach 1:
The system is divided into two separate compartments: an inner bag containing the cosmetic composition and an outer container containing the propellant. This segmentation allows independent optimization of each component - the composition can be formulated for creamy texture while the propellant is selected for dispensing performance, resolving the contradiction between ease of operation and product quality.
Solution Approach 2:
The inner bag acts as an intermediary between the composition and the propellant. It allows the composition to be compressed by the propellant without direct mixing during storage, enabling the use of propellants that provide good dispensing properties while maintaining the integrity and creamy texture of the composition.
2Quantity of substance
If aerosol cans are overfilled to provide the guaranteed amount, then the complete exhaustion is achieved, but the sensitivity to correct usage increases
Solution Approach 1:
The inner bag is designed to be dynamically compressible by the propellant pressure. As the propellant expands, it uniformly compresses the bag, ensuring complete exhaustion of the composition regardless of the can's orientation or handling, thereby reducing usage sensitivity while maintaining complete dispensing.
3Quantity of substance
If propellants are mixed to achieve complete exhaustion, then the can can be emptied, but the foam properties are compromised
Solution Approach 1:
By separating the composition and propellant into different compartments, the system eliminates the need for complex propellant mixtures. A single propellant can be used to achieve complete exhaustion without compromising foam quality, as the propellant only contacts the composition during dispensing, not during storage.
Solution Approach 2:
The system changes the physical state and timing of propellant-composition interaction. The propellant remains separate during storage (maintaining foam quality) and only mixes with the composition during the dispensing phase (enabling complete exhaustion), thus resolving the contradiction through temporal and spatial parameter 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 enables complete or almost complete exhaustion of the cosmetic composition from the can while maintaining a rich, creamy texture and allowing for flexible propellant choices, enhancing user experience and product efficiency.
Implementation Method 1
the outer container encloses the inner bag and is filled with a propellant compressing the inner bag
Implementation Method 2
a composition stored in the inner bag is allowed to be discharged by the pressure of the compressed gas in foam form
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a cosmetic composition in a container comprising at least one inner bag and an outer container, wherein the outer container encloses the inner bag and is filled with a propellant compressing the inner bag, and a valve mechanism attached to the inner bag moveable between an open position, in which a composition stored in the inner bag is allowed to be discharged by the pressure of the compressed gas in foam form, and a closed position, in which the composition is not allowed to be discharged, wherein the composition within the inner bag comprises 0.1 to 5 % by weight of a cationic surfactant (A), 0.1 to 10 % by weight of a fatty alcohol (B), and 0.1 to 10 % by weight of carbon dioxide.