Two-Chamber Antiperspirant Packaging for Aluminum-Free Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current antiperspirant products, particularly those containing aluminum salts, face issues such as short-term effectiveness, skin irritation, toxicity concerns, and discoloration of textiles, while also being unsuitable for long-term use due to their stability and compatibility challenges in cosmetic formulations.
Innovation Solution
A two-chamber packaging system containing a low molecular weight, highly amorphous silica preparation with stabilizers, where the pH is adjusted to a physiologically tolerable level only before application, allowing for effective antiperspirant action without aluminum salts, enhancing skin compatibility and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If aluminum salts are used as antiperspirant active ingredients, then sweat flow is inhibited by blocking sweat gland ducts, but the effectiveness is only short-term and requires frequent reapplication
Solution Approach 1:
The patent changes the chemical composition parameter from aluminum salts to low molecular weight highly amorphous silica (NPK). This parameter change results in a formulation that maintains antiperspirant effectiveness while providing longer-lasting action without requiring frequent reapplication, directly resolving the contradiction between reliability and duration of action
Solution Approach 2:
The patent uses a composite formulation combining NPK with specific stabilizers (polyols, alcohols, or carboxylic acid derivatives) to create a stable cosmetic preparation. This composite approach enhances the durability and longevity of the antiperspirant effect, addressing the short-term effectiveness limitation of traditional aluminum-based products
2Reliability
If aluminum salts are used to achieve antiperspirant effect, then sweat secretion is blocked, but skin irritation and toxicity occur with frequent use
Solution Approach 1:
The patent extracts and removes aluminum salts from the formulation, replacing them with low molecular weight highly amorphous silica (NPK). This extraction eliminates the toxic and irritating effects associated with aluminum while preserving the antiperspirant mechanism, directly resolving the contradiction between effectiveness and skin safety
Solution Approach 2:
The patent employs NPK as a safer, biocompatible alternative to aluminum salts. This substitution uses materials that are inherently less toxic and more compatible with skin, eliminating the harmful effects of frequent aluminum-based antiperspirant use while maintaining reliable sweat inhibition
3Duration of action of moving object
If aluminum salts are applied repeatedly to maintain antiperspirant effect, then sweat control is sustained, but discoloration of textiles occurs
Solution Approach 1:
The patent removes aluminum salts from the formulation and replaces them with NPK-based compounds. This extraction eliminates the discoloration problem associated with aluminum salts while maintaining the ability to provide sustained antiperspirant effect through repeated application
Solution Approach 2:
The patent uses NPK as a textile-friendly alternative to aluminum salts. This substitution employs materials that do not cause discoloration of fabrics, allowing users to maintain continuous antiperspirant protection without the harmful side effect of textile discoloration
4Object-affected harmful factors
If low molecular weight highly amorphous silica is used with physiologically tolerable pH, then skin compatibility is enhanced, but stability is compromised without stabilizers
Solution Approach 1:
The patent introduces stabilizers (polyols, alcohols, or carboxylic acid derivatives) as intermediary substances that mediate between the NPK and the aqueous environment. These stabilizers prevent unwanted reactions and precipitation, maintaining formulation stability while allowing the use of physiologically tolerable pH levels that enhance skin compatibility
Solution Approach 2:
The patent creates a composite formulation combining NPK with specific stabilizing agents. This composite approach provides both the skin-friendly properties of NPK at physiologically tolerable pH and the formulation stability needed for practical use, resolving the contradiction between skin compatibility and stability
Data Source
AI summary
The invention relates to a cosmetic product comprising a two-chamber container for application of cosmetic preparations, characterized in that the first chamber contains a preparation comprising silicic acid (phase1) and the second chamber a preparation comprising an alkaline compound (base) (phase 2).