Double-Sided Glass-Based Substrate Coating with Anti-Sticking Spacers
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Solution Overview
Problem
Existing methods for producing coated substrates with inorganic glass-based coatings on both sides are economically and technically challenging, particularly due to the need for precise temperature control and limited design configurations, which affects abrasion resistance, scratch resistance, and chemical resistance.
Innovation Solution
A method involving the application of a first layer-forming material with structure-forming particles on one side of a substrate, followed by heating to create elevations, and then applying a second layer-forming material on the opposite side, which is also heated, ensuring the first layer acts as spacers to prevent adhesion during the second heating, allowing for the realization of high-grade glass-based layers with enhanced properties on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a first glass-based layer is applied on one side and a second glass-based layer is applied on the other side by heating, then abrasion resistance, scratch resistance and chemical resistance are improved, but adhesion to the support occurs at the edges during heating
Solution Approach 1:
The support is divided into a support body and a release body that can be separated. The release body with lower melting point is positioned at the edges to prevent adhesion, while the support body provides structural support. This segmentation allows the coated article to be heated without adhering to the support, solving the adhesion problem while maintaining the protective properties of the glass-based layers.
Solution Approach 2:
A release body with lower melting point than the support body acts as an intermediary between the coated article and the support. This intermediary layer prevents direct contact and adhesion at the edges during heating, while still allowing thermal energy to be transmitted to the coated article for proper firing of the glass-based layers.
2Reliability
If the first layer is heated first and then the second layer is heated, then high-grade glass-based layers are achieved, but the process becomes complex and time-consuming
Solution Approach 1:
The heating processes for the first and second glass-based layers are merged into a single simultaneous heating operation. The support body and release body are positioned together with the coated article, allowing both layers to be fired at the same time in one heating cycle, thereby reducing process time while maintaining layer quality.
Solution Approach 2:
The release body with lower melting point is pre-positioned at the edges before heating begins. This preliminary arrangement ensures that during the single heating cycle, the release body melts first and creates a release mechanism that prevents adhesion, allowing both layers to be processed simultaneously without quality compromise.
3Ease of operation
If structure-forming particles are added to the first layer, then anti-sticking properties are achieved, but the manufacturing precision requirements increase
Solution Approach 1:
Instead of relying on structure-forming particles in the first layer, the invention changes the parameter of the support structure by introducing a release body with lower melting point. This parameter change eliminates the need for precise particle distribution control, as the anti-sticking effect is achieved through the melting behavior of the release body rather than particle arrangement.
Solution Approach 2:
The function of structure-forming particles (creating anti-sticking properties) is copied by the release body with lower melting point. Rather than using particles to create surface roughness for anti-sticking, the release body creates a molten layer that prevents adhesion, achieving the same functional effect through a different mechanism that is easier to control.
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
This method enables the straightforward and economic production of substrates with improved abrasion resistance, scratch resistance, and chemical resistance on both sides, while maintaining anti-sticking properties and allowing for diverse design configurations.
Implementation Method 1
heating the coated substrate to give the first layer with elevations; heating the coated substrate to give the second layer
Implementation Method 2
particles producing elevations on the layer; the softening temperature or the melting temperature of the particles is greater than the softening temperature of the glass component
Data Source
AI summary
A panel like, double-sided coated substrate and a method for production are provided. The panel like substrate includes at least two layers applied by heating, the first layer being applied on a first side of the substrate and having at least a glass component and structure-forming particles, the particles producing elevations on the first layer, and the softening temperature or the melting temperature of the particles being greater than the softening temperature of the glass component, and the second layer being applied on a second side of the substrate.