Anhydrous Scalp Care Composition for Stain Prevention Stability
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Solution Overview
Problem
Existing cosmetic compositions for treating hair fail to prevent scalp staining during hair treatments and lack stability and suitable viscosity.
Innovation Solution
An anhydrous composition comprising ester oils with 14-20 carbon atoms and 6-10 carbon atoms, combined with hydrogenated rapeseed and palm oil, providing a stable oil gel or balm form with a suitable viscosity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing cosmetic compositions are used for hair treatment, then hair treatment function is provided, but scalp staining occurs and stability is insufficient
Solution Approach 1:
The patent introduces a specific oil composition as an intermediary protective layer between the hair treatment product and the scalp. This oil composition, comprising specific ratios of ester oils and hydrogenated oils, acts as a mediator that prevents direct contact between the staining agents in hair treatment products and the scalp skin, thereby preventing scalp staining while maintaining treatment effectiveness.
Solution Approach 2:
The patent formulates a composite oil composition by combining multiple oil components in specific proportions: ester oils (14-20 carbon atoms) at 40-70 parts, ester oils (6-10 carbon atoms) at 20-40 parts, and hydrogenated oils (rapeseed and palm) at 10-30 parts. This composite material approach creates a synergistic effect where the combination of oils provides both protective properties against staining and stability, overcoming the limitations of single-component oil formulations.
2Object-affected harmful factors
If oil composition is modified to prevent staining, then scalp protection is improved, but viscosity and stability may be compromised
Solution Approach 1:
The patent systematically adjusts the molecular parameters of the oil components, specifically selecting ester oils with 14-20 carbon atoms and 6-10 carbon atoms, and hydrogenated oils with specific fatty acid compositions. By optimizing these molecular parameters and their ratios, the formulation achieves both staining protection and compositional stability, as the selected oil molecules provide appropriate viscosity and resistance to degradation while maintaining protective properties.
Solution Approach 2:
The composite oil formulation combines different oil types with complementary properties: ester oils provide viscosity and stability, while hydrogenated oils contribute protective properties against staining. The specific ratio ranges (ester oils 14-20 CA: 40-70 parts, ester oils 6-10 CA: 20-40 parts, hydrogenated oils: 10-30 parts) ensure that the composite material maintains both stability and protective functionality, resolving the contradiction between protection and stability.
3Object-affected harmful factors
If oil composition is modified to prevent staining, then scalp protection is improved, but viscosity may become unsuitable for application
Solution Approach 1:
The patent carefully controls the molecular weight and chain length parameters of the oil components. By selecting ester oils with 14-20 carbon atoms (providing adequate viscosity) and 6-10 carbon atoms (providing流动性), and adjusting their ratios within specific ranges, the formulation maintains suitable viscosity for application. The hydrogenated oils with specific fatty acid compositions further modulate the viscosity while preserving protective properties, achieving a balance between application suitability and staining prevention.
Data Source
AI summary
It relates to an anhydrous composition for caring for the skin, in particular the scalp, comprising: (i) at least one ester oil of fatty acid containing 14-20 carbon atoms and glycerol; (ii) at least one ester oil of fatty acid containing 6-10 carbon atoms and glycerol; and (iii) a combination of hydrogenated rapeseed oil and hydrogenated palm oil, wherein the weight ratio of hydrogenated rapeseed oil to hydrogenated palm oil is from 45:55 to 90:10. It also relates to a non-therapeutic method for caring for the skin, in particular the scalp, comprising applying the composition to the skin, in particular the scalp.