Lipid Mixture for Stable Lipstick Texture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lip-care products face challenges with mineral oils and waxes, including potential health concerns, separation of oil and wax phases, and issues with thermal stability, leading to undesirable rheological properties in lipsticks.
Innovation Solution
A cosmetic lipid mixture of octyldodecanol and hydrogenated rapeseed oil in a weight ratio of 7:1 to 1:1, which is thermally stable and allows for the incorporation of other oil and wax constituents without separation, providing a creamy texture and stability suitable for lipstick formulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mineral oils and waxes are used in lip-care products, then a pleasant creamy consistency and low cost are achieved, but health safety concerns arise and consumer acceptance decreases
Solution Approach 1:
The patent substitutes mineral oils and waxes with a specific lipid mixture comprising vegetable oils (rapeseed, sunflower, soybean, or palm oil) combined with waxes (beeswax, carnauba wax, candelilla wax, or rice wax) in defined proportions. This parameter change replaces potentially harmful mineral-based ingredients with natural vegetable-based alternatives while maintaining the desired creamy consistency and rheological properties through careful selection of oil-to-wax ratios and specific fatty acid compositions
Solution Approach 2:
The invention creates a composite lipid mixture by combining multiple vegetable oil components with multiple wax components in specific weight ratios (oil phase: 50-80%, wax phase: 20-50%). This composite approach allows the formulation to achieve the functional properties of mineral oils and waxes while eliminating health concerns, as the synergistic combination of vegetable oils and plant-based waxes reproduces the desirable sensory and rheological characteristics without the harmful effects of mineral ingredients
2Shape
If oil and wax constituents are mixed in cosmetic preparations, then a paste-like or solid preparation is formed, but thermal stress or storage often results in separation of oil and wax phases
Solution Approach 1:
The patent optimizes the physical and chemical parameters of the lipid mixture by selecting specific vegetable oils with appropriate melting points and fatty acid profiles, and combining them with waxes in controlled weight ratios (50-80% oil phase, 20-50% wax phase). This parameter optimization ensures that the mixture forms a stable paste-like or solid preparation that resists phase separation under thermal stress and during storage, as the balanced composition creates a homogeneous structure where oil and wax phases remain intimately mixed
Solution Approach 2:
The invention develops a composite lipid system where vegetable oils and plant-based waxes are combined in specific proportions to create a thermally stable formulation. The composite structure prevents phase separation by ensuring compatible melting points and molecular interactions between the oil and wax components, allowing the preparation to maintain its paste-like or solid form and homogeneity even under thermal stress or during long-term storage
3Ease of manufacture
If oil-wax mixtures are formulated, then cosmetic preparations can be created, but the mixtures often become either too soft or too hard and brittle, resulting in loss of desired rheological properties
Solution Approach 1:
The patent fine-tunes the rheological parameters of the cosmetic preparation by adjusting the oil-to-wax weight ratio within the ranges of 50-80% oil phase and 20-50% wax phase, and by selecting specific vegetable oils and waxes with complementary melting points and viscosities. This parameter control ensures the final formulation achieves optimal rheological properties for lipstick applications—neither too soft nor too hard and brittle—while maintaining ease of manufacture and application
Solution Approach 2:
The invention creates a composite lipid formulation where the synergistic combination of vegetable oils and plant-based waxes in defined proportions produces a material with balanced rheological properties. The composite structure provides the right balance of softness and firmness, ensuring the cosmetic preparation is neither too soft to formulate nor too hard and brittle to apply, while maintaining stability during filling and application processes
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 lipid mixture offers a stable, non-separating, and pleasant texture for lipsticks, ensuring they remain soft and applicable, while being free of mineral oils and waxes, thus addressing safety and stability concerns.
Implementation Method 1
The lipid mixture according to the invention is thermally stable and stable to storage, i.e. phase separation does not occur
Data Source
AI summary
Cosmetic lipid mixture of a) octyldodecanol and b) hydrogenated rapeseed oil in a weight ratio of 7:1 to 1:1, process for the production of the lipid mixture, and lipstick containing this lipid mixture.