2015 is the 100 year anniversary of TAPPI and we are celebrating the successes of the industry, people and companies who have contributed. Our celebration will focus on the innovative discoveries and breakthroughs by academic and industrial research groups over the past 100 years.
September 17, 2014 August
Brightness Tester A brightness tester uses industry standards to test the reflectance factor of paper. The tester provides a numerical number for brightness of white, near white and color pulps, papers and paper boards. The common perception of brightness and whiteness being the same or interchangeable is not true. The tester does not measure the color, rather the blue portion of the light spectrum. To get an accurate measurement three colorimetric measurements are used and are compared to the TAPPI Standards Method. The tester was developed by Dr. Johannes Van den ... read more