Acoustical Panel with Coarse Particle Coating for Sound Absorption
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Solution Overview
Problem
There is a need for an inexpensively produced fibrous substrate with a monolithic appearance, high light reflectance value, and high sound absorption capabilities that balances acoustical performance and visual aesthetics, while existing solutions are either fragile, expensive, or require additional machinery and resources.
Innovation Solution
A coated panel with a substrate of specific density and porosity, featuring perforations and a coating of coarse particles applied to the surface, which enhances sound absorption and light reflectance without compromising durability or aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If highly porous, low-density material is used to achieve exceptional acoustical performance, then noise reduction coefficient is improved, but durability, scrubability, tensile strength and visual appeal deteriorate
Solution Approach 1:
The patent uses a composite structure combining a fibrous acoustical substrate with a decorative vinyl laminate layer. The substrate provides acoustical performance through its porous structure, while the vinyl laminate provides durability, scrubability, and visual appeal. This composite approach allows each material to contribute its strengths without compromising the other.
Solution Approach 2:
The fibrous substrate is designed with high porosity (83-90%) to enable sound absorption. The porous structure allows sound waves to enter and be absorbed within the material, achieving the desired acoustical performance while maintaining the structural integrity needed for durability.
2Reliability
If laminated panels are used to provide acoustical capabilities and aesthetic appeal, then visual aesthetics and durability are improved, but manufacturing cost increases due to additional machinery, materials, and human resources
Solution Approach 1:
The patent combines the acoustical substrate and decorative vinyl laminate into a single integrated panel product. This merging of functions into one component eliminates the need for separate installation steps and reduces overall manufacturing complexity, lowering costs while maintaining both acoustical performance and aesthetic appeal.
Solution Approach 2:
The laminated panel serves multiple functions simultaneously: the vinyl laminate provides durability and aesthetic appearance, while the fibrous substrate provides acoustical absorption. This multi-functionality in a single product reduces the need for additional components and installation steps, thereby reducing manufacturing costs.
3Reliability
If embossing or punching holes is done to enhance acoustical absorption, then noise reduction coefficient is improved, but visual aesthetics deteriorate
Solution Approach 1:
The patent applies different properties to different parts of the panel: the fibrous substrate provides acoustical absorption through its porous structure, while the vinyl laminate provides a smooth, aesthetically pleasing surface. Each layer performs its specific function without compromising the other, allowing the panel to achieve both acoustical performance and visual appeal.
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 solution achieves a noise reduction coefficient of 0.575 to 0.725 and a light reflectance value of 0.82 to 0.88, providing effective sound absorption and visual appeal at a low cost, using a substrate with a thickness of 0.5 to 0.75 inches and a coating of coarse particles within specific ranges.
Implementation Method 1
the panel must be porous, especially on the surface of the panel... the coating is discontinuous, i.e. porous, enabling sound to pass through to an acoustical substrate... a noise reduction coefficient in the range from about 0.575 to about 0.725
Implementation Method 2
The filler contains particles having three different sizes... the coating composition is both durable and provides for high light reflectance... a light reflectance value in the range from about 0.82 to about 0.88
Data Source
AI summary
A lightweight acoustical panel having a substantially monolithic appearance and high sound absorption capabilities is manufactured at a lower cost than acoustical panels having comparable properties. The panel is formed, punched with pins and coated with a coarse particle coating.