Water-in-Oil Emulsion Waterproof Makeup Remover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current makeup removal products, particularly those for waterproof makeup, often leave a greasy film and heavy texture on the skin, requiring subsequent rinsing and failing to provide effective removal without unpleasant sensations.
Innovation Solution
A water-in-oil (W/O) emulsion cosmetic composition with a specific oil component, water content, and emulsifier blend is used, which is applied via an impregnated or coated applicator, ensuring efficient waterproof makeup removal without a greasy residue or oily sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oil-based products are used for removing waterproof make-up, then removal efficacy is improved, but greasy film and heavy texture are left on the skin
Solution Approach 1:
The patent changes the emulsion type parameter from conventional O/W to W/O emulsion, and adjusts the oil phase composition parameters (specific esters with defined HLB values, isododecane content) to achieve a formulation that removes waterproof make-up effectively while evaporating without leaving greasy residue
Solution Approach 2:
The patent uses a composite emulsion system combining water phase, oil phase (isododecane, esters), and emulsifiers (PEG-100 stearate, PEG-55 propyl myristate) in specific proportions to create a W/O emulsion that provides both effective make-up removal and non-greasy skin feel
2Object-generated harmful factors
If classical oil-in-water emulsion products are used, then skin comfort is improved, but removal efficacy for waterproof make-up is insufficient
Solution Approach 1:
The patent inverts the conventional O/W emulsion structure to a W/O emulsion structure. This inversion allows the oil phase to be the continuous phase, providing superior waterproof make-up removal efficacy while the specific composition and evaporation properties maintain skin comfort without greasy residue
3Reliability
If oil-based products are used for removing waterproof make-up, then removal efficacy is improved, but subsequent rinsing is required
Solution Approach 1:
The patent changes the formulation parameters to create a W/O emulsion with specific volatile components (isododecane, low molecular weight esters) that evaporate readily, allowing the product to be used without subsequent rinsing while maintaining effective waterproof make-up removal
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 W/O emulsion composition effectively removes waterproof makeup, including mascara and eye shadow, with high efficacy and no greasy film, meeting customer preferences for ease of use and skin comfort.
Implementation Method 1
a water-in-oil (W/O) emulsion cosmetic composition
Implementation Method 2
an emulsifier blend
Data Source
AI summary
The present invention relates to a use of a cosmetic composition for removing make-up, in particular waterproof make-up, wherein the cosmetic composition is in the form of a water-in-oil emulsion. The cosmetic composition, which is coated onto or impregnated into an applicator for cosmetic purpose, such as a pad, comprises an oil component having a polarity of at least 20 mN/m, water, and an emulsifier component comprising a lipophilic non-ionic emulsifier. According to another aspect, the invention relates to a method for removing make-up, especially waterproof make-up, comprising applying the above cosmetic composition to the skin. Further, the present invention is concerned with a specific cosmetic composition comprising water, an emulsifier component comprising a lipophilic non-ionic emulsifier, and an oil component which is a mixture of C12-C16 alkane and a cyclic silicone, in particular a cyclopentasiloxane and/or cyclohexasiloxane, and also to an applicator for cosmetic purpose impregnated or coated with such cosmetic composition. The present invention allows a highly efficient removal of waterproof make-up while reducing or avoiding the formation of an oily or greasy film with heavy texture on the skin upon use.