Metrological Standard
International protocols for the analysis of three-dimensional surface topography provide a detailed framework for measuring the roughness and texture of various materials. The adoption of iso 25178 surface texture moves beyond traditional linear measurements to describe a surface as an area. It introduces parameters that quantify peaks, pits, and the overall volume of the surface void.
This standard applies to everything from metal components to the coated surfaces of high-grade printing papers.
Print Receptivity
Ink transfer in gravure and flexographic printing depends on the intimate contact between the plate and the substrate. Evaluation using iso 25178 surface texture helps printers understand how well a paper will accept ink by mapping the depth of the microscopic valleys in the coating. If the surface is too open, the ink will not bridge the gaps, leading to a speckled appearance.
Measurement of the functional volume parameters allows for a better prediction of ink consumption and drying times.
Tactile Property
Packaging for luxury goods often relies on a specific feel or haptic response to convey quality. By applying the metrics found in iso 25178 surface texture, designers can specify the exact level of silkiness or grit required for a brand’s identity. These measurements are more objective than human touch and can be used to audit shipments from different suppliers.
Scanners using confocal microscopy or white light interferometry generate the raw data for these calculations. Consistent texture ensures that every box on the shelf feels identical to the consumer. This objective data replaces subjective grading by press operators and quality inspectors.
Advanced analysis of the developed interfacial area ratio provides insight into how the surface will interact with adhesives or protective coatings.
