Glass Container Interior Vitreous Coating for Fragrance Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Glass containers used for liquid fragrances face challenges in decoration due to the material's difficulty in being worked with and the aggressive nature of alcohol-based liquids, leading to deterioration and potential health risks.
Innovation Solution
A method involving a sol-gel process to coat the inside surface of glass containers with a vitreous material, ensuring compatibility and stability, with a mass per unit area not exceeding 70 g/m2, to provide durability and aesthetic appeal while preventing material migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If glass containers are decorated on the inside surface to be visible from outside, then appearance quality is improved, but the decoration deteriorates due to immersion in alcohol-based fragrance
Solution Approach 1:
The patent applies a sol-gel coating process that creates a composite structure where a vitreous layer is deposited on the inside surface of the glass container. This composite material system combines the transparency of glass with the chemical resistance of the sol-gel derived coating, allowing decoration to be applied while protecting it from alcohol-based fragrance deterioration.
Solution Approach 2:
The sol-gel coating acts as an intermediary layer between the glass substrate and the decorative elements or the fragrance content. This intermediate layer provides chemical resistance and protection, preventing direct contact between the alcohol-based fragrance and the decoration, thereby preventing deterioration while maintaining visual transparency.
2Shape
If glass containers are decorated on the inside surface, then commercial attractiveness is improved, but health risks increase due to material migration
Solution Approach 1:
The sol-gel derived vitreous coating creates a chemically stable composite structure that prevents material migration. The coating forms a barrier layer that is highly resistant to chemical interaction with alcohol-based fragrances, eliminating the health risk of decorative materials leaching into the fragrance while maintaining the aesthetic benefits of inside decoration.
Solution Approach 2:
The sol-gel coating creates an inert chemical environment between the decoration and the fragrance. This passive protective layer is chemically inert and does not interact with the alcohol-based fragrance, preventing any material migration or chemical reactions that could pose health risks while allowing the decoration to remain visible and attractive.
3Shape
If glass containers are decorated on the inside surface, then appearance quality is improved, but manufacturing difficulty increases due to glass workability constraints
Solution Approach 1:
The sol-gel coating is applied to the inside surface of the glass container before the decoration process. This preliminary action prepares the surface by creating a chemically resistant and adherent base layer, which simplifies subsequent decoration steps and reduces manufacturing complexity despite the additional coating step.
Solution Approach 2:
The sol-gel process replaces traditional mechanical decoration methods with a chemical deposition approach. Instead of mechanically applying or attaching decorative elements to glass (which is difficult due to glass hardness and brittleness), the sol-gel process uses chemical reactions to deposit a coating that can then be decorated, significantly easing manufacturing.
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 method results in a glass container that is both mechanically and chemically durable, aesthetically pleasing, and safe for use, with the sol-gel coating providing hydrolytic protection and preventing cracking, while being industrially feasible and cost-effective.
Implementation Method 1
a step of covering at least a fraction of said inside face in a vitreous material prepared using a sol-gel process
Implementation Method 2
The sol-gel process is a wet chemical process which makes it possible to transform a liquid, comprising inorganic and/or organic precursors, into a gel
Implementation Method 3
the sol-gel coating providing hydrolytic protection and preventing cracking
Data Source
AI summary
The invention relates to a method of fabricating a container (1) comprising a glass wall (2) defining a reception cavity for receiving a composition for administration to a human being or to an animal, said glass wall (2) presenting an inside face situated facing said reception cavity, said method being characterized in that it comprises a step of covering at least a fraction of said inside face in a vitreous material covers said fraction of the inside face at a mass per unit area that does not exceed substantially 70 g/m2. The invention relates to glass containers.