Solid Hydrating Cosmetic Composition with High Water Content
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Solution Overview
Problem
Conventional solid cosmetic compositions, particularly powders, often provide a dry sensation when applied to the skin, failing to offer hydration and comfort, especially for individuals with dry or fragile skin, and lack the hydrating and freshening effects desired in cosmetic care and makeup.
Innovation Solution
A solid hydrating composition comprising a physiologically acceptable medium with water (5-50% by weight), hydroxyl compounds like polyols or glycol ethers, and a particulate solid phase, formed by mixing these components to create a paste that is then shaped and partially dried to achieve a hydrating and fresh application experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If solid compositions with pulverulent phase are used, then coverage and color are provided, but dry sensation occurs on skin
Solution Approach 1:
The patent changes the water content parameter from conventional low levels (1-5%) to high levels (10-60%), transforming the composition from dry to hydrating. This parameter change resolves the contradiction by maintaining coverage while eliminating the dry sensation through sufficient water content that provides immediate hydration upon application
Solution Approach 2:
The patent creates a composite material system combining pulverulent phase (for coverage), high water content (for hydration), and hydroxyl compounds (for additional hydrating effect). This composite approach allows simultaneous achievement of coverage and hydration, resolving the contradiction between providing substance and avoiding dryness
2Object-affected harmful factors
If high water content is used in solid composition, then hydrating effect is improved, but composition stability deteriorates
Solution Approach 1:
The patent introduces hydroxyl compounds (glycerol, propylene glycol, butylene glycol) as intermediary substances that stabilize the high water content system. These intermediaries act as humectants and stabilizers, preventing microbial growth and maintaining composition integrity while allowing high water content (10-60%) necessary for the hydrating effect
Solution Approach 2:
The patent uses conventional, well-understood hydroxyl compounds and preservatives that are readily available and proven effective. These standard ingredients provide reliable stabilization without requiring complex or expensive specialized materials, making the high-water formulation practically viable
3Shape
If conventional powder formulations are used, then solid form is maintained, but hydrating comfort is lost
Solution Approach 1:
The patent changes the water content parameter to 10-60%, which is sufficient to provide hydrating comfort upon application while maintaining solid form through the presence of pulverulent phase and controlled drying. This parameter change enables the composition to deliver both solid convenience and hydrating benefit simultaneously
Solution Approach 2:
The patent creates local quality differentiation where the composition maintains solid form overall but provides localized hydrating effect when applied to skin. The high water content and hydroxyl compounds create a hydrating microenvironment at the application site while the bulk material remains in solid form for easy handling and storage
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 composition provides a creamy, hydrating, and fresh application feel, improving skin hydration by up to 40% and offering a pleasant, long-lasting makeup effect without dryness, enhancing both skincare and makeup experiences.
Implementation Method 1
the pulverulent materials and the binder are diluted in a solvent to obtain a paste (otherwise called slurry) which is then shaped and dried
Data Source
AI summary
The present invention concerns a cosmetic composition for caring for and/or making up keratinous substances, more particularly the skin, in the form of a solid composition comprising, in a physiologically acceptable medium, at least: water in a an amount of from 5% to 50% by weight of water, at least one hydroxyl compound selected from polyols, glycol ethers and mixtures thereof, a particulate solid phase comprising at least fillers, and optionally an oily phase comprising at least one oil, said composition being obtainable by a method comprising the following steps: (i) mixing the particulate phase, the hydroxyl compound and the water, and the optional oily phase constituting the liquid phase, to form a paste; and (ii) shaping the paste by compacting and partial removal of the liquid phase, to give the composition in the form of a solid composition.