Candelilla Wax Monoester Solid Cosmetic Composition
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Solution Overview
Problem
Existing solid cosmetics, such as lipsticks, face challenges with hardness adjustment, texture, storage stability, and oil oozing due to the use of waxes like polyethylene, paraffin, candelilla, and carnauba, which do not break down smoothly and can lead to inferior texture and makeup deterioration.
Innovation Solution
A solid wax composition combining candelilla wax with a monoester having 40 to 48 carbon atoms, specifically behenyl behenate, in a specific mass ratio (60:40 to 80:20) is used, which when mixed with liquid oil, provides excellent shape retention, suppresses oil oozing, and offers a favorable texture and good storage stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional waxes (polyethylene, paraffin, candelilla, carnauba) are used to increase hardness, then the desired hardness is achieved with small amounts, but the texture becomes inferior and oil oozing occurs
Solution Approach 1:
The invention uses a composite wax system combining candelilla wax (40-80 mass%) with either carnauba wax (20-60 mass%) or hydrogenated vegetable wax (20-60 mass%). This composite approach allows the synergistic interaction between different wax types to achieve superior hardness control while preventing oil oozing and maintaining excellent texture, resolving the contradiction between hardness enhancement and texture preservation.
2Object-generated harmful factors
If hydrocarbon wax with side chains is added to suppress oil oozing, then oil solidification function is enhanced, but storage stability deteriorates and texture becomes inferior
Solution Approach 1:
The invention replaces hydrocarbon waxes with side chains with a composite system of candelilla wax combined with carnauba wax or hydrogenated vegetable wax. This composite formulation achieves effective oil oozing suppression through the complementary properties of the waxes while maintaining high storage stability and superior texture, eliminating the trade-off between oil control and composition stability.
3Shape
If more wax is added to improve shape retention, then hardness increases, but the cosmetic becomes too rigid and texture deteriorates
Solution Approach 1:
The invention optimizes the composition parameters by formulating candelilla wax at 40-80 mass% combined with carnauba wax or hydrogenated vegetable wax at 20-60 mass%. This precise parameter control achieves excellent shape retention while maintaining smooth texture and prevent excessive rigidity, resolving the contradiction between shape stability and texture quality.
Data Source
AI summary
The present invention provides a composition that has an excellent hardness adjustment action, can be used as a solidifying agent for various cosmetics, and when added to cosmetics, can impart those cosmetics with excellent shape retention properties, an oil oozing suppression effect during use, a favorable texture and good storage stability, and also provides an oily solid cosmetic to which the composition has been added. Specifically, the invention provides a solid wax composition containing a component (A): candelilla wax, and a component (B): a monoester having a total of 40 to 48 carbon atoms, wherein the mass ratio between the component (A) and the component (B) in the solid wax composition satisfies component (A) : component (B) = 45:55 to 95:5, and the monoester is a monoester of a monovalent fatty acid and a monohydric alcohol.