How Musou Black is used in Cultural Heritage Preservation Research

Musou Black materials are being used across a wide range of industries, including aerospace development, botanical specimen photography, and stray-light suppression in optical equipment. More recently, Tokyo National Research Institute for Cultural Properties began using KIWAMI Fabric in cultural preservation research, specifically for reducing measurement noise during spectral analysis.

The connection began when the institute placed an order through the company’s online shop. Located near Ueno Park in Tokyo, the institute specializes in research related to museums, artworks, and cultural artifacts. Curiosity quickly grew regarding how Musou Black materials were being applied in this field.

According to researchers at the institute:

“The material is used during measurements of samples and reference materials with colorimeters and hyperspectral cameras. It has been especially useful when measuring thin or translucent materials such as fabric and paper.”

This marked a completely new application for the material.

At the Tokyo National Research Institute for Cultural Properties, cultural artifacts are analyzed using hyperspectral imaging systems. By examining the reflected light spectrum, researchers can identify the composition of pigments, dyes, textiles, murals, and paintings. The technique is particularly effective for studying historical materials where non-destructive analysis is essential.

However, thin materials such as paper or cloth create a challenge during measurement. Light can pass through the sample and reflect off the surface beneath it, introducing unwanted background reflections into the captured data. While researchers can subtract these reflections mathematically, minimizing them at the source significantly improves measurement accuracy.

This is where Musou Black materials become valuable. By suppressing unwanted reflected light from the background, noise originating behind the sample can be reduced to extremely low levels, allowing cleaner and more precise extraction of the material’s true spectral data.

Photos taken during testing showed the hyperspectral camera setup alongside KIWAMI Fabric demonstrating how the material is integrated into the measurement environment.

During discussions with the research team, it was also discovered that the hyperspectral camera covers the near-infrared spectrum. This led to another possible solution: the near-infrared absorbing fabric, the IR Flock Sheet.

While KIWAMI Fabric exhibits extremely low reflectance in visible light, its reflectance increases significantly in infrared wavelengths. Because of this, the IR Flock Sheet which is designed specifically for near-infrared absorption, may be even more suitable for this type of measurement environment. Samples were later provided to the institute for further testing.

If the use of infrared-absorbing materials improves measurement precision even further, it could contribute meaningfully to future cultural preservation research.

The company’s black materials, including the ultra-black fabric "KIWAMI Fabric" and the near-infrared absorbing fabric "IR Flock Sheet", offer properties not commonly available elsewhere and are well suited for research and development applications.

For laboratories or imaging environments struggling with unwanted reflections and measurement noise, these materials provide an effective solution for improving optical performance and spectral accuracy.

If you are experiencing any light noise issues, please contact us at contact@the-black-market.com or send us a message through the inquiry form. We'll be happy to help!

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