To ensure wearer safety, high visibility work clothing must be color-accurate when it leaves the production floor and retain color integrity after washing over time, but fluorescent dyes are challenging to control. DIN EN ISO 20 471 and ANSI/ISEA 107 specify UV-calibrated D65 Xenon lighting must be used to evaluate fluorescent dyes.
Manufacturing high-visibility clothing holds many challenges:
Fluorescent colors must be within the tolerances defined by DIN EN ISO 20 471 and ANSI/ISEA 107 for professional use
Fluorescent colors must be evaluated using a UV-calibrated spectrophotometer with D65 Xenon lighting
Garments must retain color integrity after cleaning and over time
Using a benchtop spectrophotometer and quality control software, textile manufacturers, laundries, and customers can eliminate guesswork and measure safety clothing to ensure compliance with DIN and ISO requirements.
With a 45°:0° geometry and D65 Xenon lighting with UV-calibration, the ColorXRA Lab spectrophotometer offers good correlation with human vision and is ideal for measuring fluorescent colors. It positions and holds the sample against a black hole in front of the measuring aperture to ensure a reflection below 0.04 and uses a physical illumination of CIE D65 in the visible range as well as in the UV range below 400 nm. This ensures constant measurements, even when the lamp is aging.
ESWin software displays measurement results as color indices x, y and luminance factor (β-value) numerically and in a chart to characterize whether fluorescent colors are in tolerance. This enables operators to make clear pass/fail decisions. To ensure the integrity of the program and identify areas of improvement, color quality records are documented according to accepted international standards.
Pass/fail rankings are made based on DIN EN ISO 20 471 and ANSI/ISEA 107 standards to ensure high-visibility warning clothing is suitable for professional use
Documentation that production adheres to ISO 9000
Excellent color communication between clothing manufacturers, laundry services, and their customers
Calibrated UV content ensures that measurements of new instruments with high UV energy have the same results as old ones
Measurements are constant over time and traceable between different users at different locations
ColorXRA Lab Spectrophotometer
A 45°:0° benchtop spectrophotometer with a Xenon flash lamp, ideal for measuring fluorescent color on safety apparel. It offers excellent measurement results with a real spectral resolution of 1nm. Absolute automatic wavelength calibration with 0.07 nm precision for excellent short- and long-term stability.
A customizable quality control software solution that works with ColorXRA Lab to make pass/fail decisions for high visibility safety apparel. It presents measurement results in an easy-to-interpret graphic display as well as printed reports for proof of compliance.
Using the ColorXRA Lab benchtop spectrophotometer and ESWin Quality Control software, safety apparel manufacturers can ensure fluorescent colors are within ISO and ANSI/ISEA tolerance to ensure wearer safety.