Glossy Surface Lustre Measurement Using Digital Gloss Meter
• Gloss is a crucial aspect of visual perception, with high reflectance surfaces being glossy, shiny, or lustrous.
• The interaction of light with the surface's physical characteristics creates a gloss.
• The advertising industry is experiencing a rise in demand for glossy-finish products and banners.
• Gloss is measured by a Gloss Meter, which assigns a gloss unit (GU) to a specified surface.
• The GU scale is based on highly polished, reference black glass with a defined refractive index and a specular reflectance of 100 GU at the specified angle.
• For highly reflective surfaces like mirrors or plated and raw metals, higher values of 2000 GU can be reached when measured at 20 degrees.
• Some industries adopt 20.60/85° angles specified in ASTM D523, which measure 10mm x 10mm, 60° measures 9mm x 15mm, and 85° measures 5mm x 36mm area.
• The subjective understanding of appearance depends on the personal experience of the viewer.
• The glossiness of any material may appear different from that of the paper manufacturer but might appear dull to an automotive maker.
• The visual judgment of surface gloss depends on the visual inspection and mood of any human.
• The gloss meter supplier must measure the gloss perspective accurately. If the measurement done at 60° is greater than 70GU, the measurement angle should be changed to 20°.
• Two additional angles are used for other materials: 45° for ceramics, films, textiles, and anodized aluminum, and 75° for paper.
• Gloss is a crucial aspect of visual perception, with high reflectance surfaces being glossy, shiny, or lustrous.
• The interaction of light with the surface's physical characteristics creates a gloss.
• The advertising industry is experiencing a rise in demand for glossy-finish products and banners.
• Gloss is measured by a Gloss Meter, which assigns a gloss unit (GU) to a specified surface.
• The GU scale is based on highly polished, reference black glass with a defined refractive index and a specular reflectance of 100 GU at the specified angle.
• For highly reflective surfaces like mirrors or plated and raw metals, higher values of 2000 GU can be reached when measured at 20 degrees.
• Some industries adopt 20.60/85° angles specified in ASTM D523, which measure 10mm x 10mm, 60° measures 9mm x 15mm, and 85° measures 5mm x 36mm area.
• The subjective understanding of appearance depends on the personal experience of the viewer.
• The glossiness of any material may appear different from that of the paper manufacturer but might appear dull to an automotive maker.
• The visual judgment of surface gloss depends on the visual inspection and mood of any human.
• The gloss meter supplier must measure the gloss perspective accurately. If the measurement done at 60° is greater than 70GU, the measurement angle should be changed to 20°.
• Two additional angles are used for other materials: 45° for ceramics, films, textiles, and anodized aluminum, and 75° for paper.