Laminated Glazing Bird Protection Pattern Interlayer
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Solution Overview
Problem
Existing bird protection patterns on laminated glazing interfere with glass surfaces, leading to adhesion issues and reduced optical quality, which compromises the safety and economic value of the glazing.
Innovation Solution
A laminated glazing design where a bird protection pattern is printed or coated onto the surface of one interlayer, sandwiched between two interlayers, ensuring the pattern is not in direct contact with the glass, thereby improving adhesion and optical quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bird protection pattern is printed or coated onto the surface of the interlayer, then bird protection function is improved, but adhesion between interlayer and glass is worsened
Solution Approach 1:
A clear coat layer is introduced as an intermediary between the bird protection pattern and the glass surface. This clear coat serves as a mediator that prevents direct contact between the pattern and glass, thereby maintaining adhesion strength while preserving the bird protection function of the pattern.
2Reliability
If a bird protection pattern is printed or coated onto the surface of the interlayer, then bird protection function is improved, but optical quality is worsened
Solution Approach 1:
The clear coat layer acts as an intermediary that separates the bird protection pattern from the glass surface, preventing direct interference that degrades optical quality. This maintains sharp borders and high optical quality while preserving the pattern's bird protection function.
3Reliability
If enamel printing is used on glass surface, then bird protection function is improved, but production cost and complexity are worsened
Solution Approach 1:
Instead of directly printing on the glass surface using complex enamel printing processes, the invention applies a simpler coating method to create a clear protective layer. This copies the protective function without requiring the high-temperature enamel printing process, thereby reducing production complexity and cost.
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 design enhances the stability and safety of laminated glazing by improving adhesion and maintaining optical quality, while also reducing the impact of sunlight exposure on the pattern.
Implementation Method 1
fading or deterioration of the pattern from an exposure to sunlight can be reduced by using a UV-blocking agents present in the two interlayer films on both sides of the pattern
Implementation Method 2
the bird protection pattern has a transparency for light in the range from 380 to 750 nm of more than 50% and comprises a UV absorber or a UV reflective agent
Data Source
AI summary
The invention is directed to laminated glazing comprising two glass sheets laminated by means of at least two interlayers wherein at least one surface of one of the interlayers is provided with a bird protection pattern in between the two interlayers and wherein at least one interlayer comprises an ionomer.